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IPv4 Address Space

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In 2006, Randall Munroe published xkcd's "Map of the Internet". Since then, all available /8 blocks have been delegated to regional registries which are now allocating the final addresses. There is an updated version of this strip.

After delegation to a registry, a block of IP addresses is allocated to end users who, according to current guidelines, are supposed to advertise their addresses. The numbers of allocated and advertised addresses are visualized in the following images. They are generated automatically every day, detailed information is in the image map. Each regional registry is shown in a different color (see key on the right). Legacy blocks "Administered by <...>" are shown in grey, as well as corporate/government blocks.

The following image shows allocated addresses. The higher the number of allocated addressess, the lighter the color. Hover the cursor for details.

0: Reserved by the IETF (not available) 1: APNIC (since 2010-01), 15.587.584 adresses (93%) advertised, 1.189.632 (7%) assigned but not advertised, 0 (0%) available in pool 2: RIPE NCC (since 2009-09), 16.228.096 adresses (97%) advertised, 286.976 (2%) assigned but not advertised, 0 (0%) available in pool 3: Legacy (General Electric Company, since 1994-05), 2.304 adresses (0%) advertised, 16.774.912 (100%) assigned but not advertised, 0 (0%) available in pool 4: Legacy (Level 3 Communications, Inc., since 1992-12), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 5: RIPE NCC (since 2010-11), 14.851.840 adresses (89%) advertised, 1.645.824 (10%) assigned but not advertised, 151.552 (1%) available in pool 6: Legacy (Army Information Systems Center, since 1994-02), 1.057.536 adresses (6%) advertised, 15.719.680 (94%) assigned but not advertised, 0 (0%) available in pool 7: Legacy (Administered by ARIN, since 1995-04), 0 adresses (0%) advertised, 16.777.216 (100%) assigned but not advertised, 0 (0%) available in pool 8: Legacy (Level 3 Communications, Inc., since 1992-12), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 9: Legacy (IBM, since 1992-08), 0 adresses (0%) advertised, 16.777.216 (100%) assigned but not advertised, 0 (0%) available in pool 10: Reserved by the IETF (not available) 11: Legacy (DoD Intel Information Systems, since 1993-05), 0 adresses (0%) advertised, 16.777.216 (100%) assigned but not advertised, 0 (0%) available in pool 12: Legacy (AT&T Bell Laboratories, since 1995-06), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 13: Legacy (Xerox Corporation, since 1991-09), 1.296.128 adresses (8%) advertised, 15.481.088 (92%) assigned but not advertised, 0 (0%) available in pool 14: APNIC (since 2010-04), 12.598.272 adresses (75%) advertised, 4.152.320 (25%) assigned but not advertised, 0 (0%) available in pool 15: Legacy (Hewlett-Packard Company, since 1994-07), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 16: Legacy (Digital Equipment Corporation, since 1994-11), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 17: Legacy (Apple Computer Inc., since 1992-07), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 18: Legacy (MIT, since 1994-01), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 19: Legacy (Ford Motor Company, since 1995-05), 0 adresses (0%) advertised, 16.777.216 (100%) assigned but not advertised, 0 (0%) available in pool 20: Legacy (Computer Sciences Corporation, since 1994-10), 481.280 adresses (3%) advertised, 16.295.936 (97%) assigned but not advertised, 0 (0%) available in pool 21: Legacy (DDN-RVN, since 1991-07), 0 adresses (0%) advertised, 16.777.216 (100%) assigned but not advertised, 0 (0%) available in pool 22: Legacy (Defense Information Systems Agency, since 1993-05), 0 adresses (0%) advertised, 16.777.216 (100%) assigned but not advertised, 0 (0%) available in pool 23: ARIN (since 2010-11), 12.313.344 adresses (73%) advertised, 310.528 (2%) assigned but not advertised, 0 (0%) available in pool 24: ARIN (since 2001-05), 16.233.216 adresses (97%) advertised, 438.272 (3%) assigned but not advertised, 69.632 (0%) available in pool 25: Legacy (UK Ministry of Defence, since 1995-01), 2.048 adresses (0%) advertised, 16.775.168 (100%) assigned but not advertised, 0 (0%) available in pool 26: Legacy (Defense Information Systems Agency, since 1995-05), 0 adresses (0%) advertised, 16.777.216 (100%) assigned but not advertised, 0 (0%) available in pool 27: APNIC (since 2010-01), 16.239.424 adresses (97%) advertised, 494.784 (3%) assigned but not advertised, 0 (0%) available in pool 28: Legacy (DSI-North, since 1992-07), 0 adresses (0%) advertised, 16.777.216 (100%) assigned but not advertised, 0 (0%) available in pool 29: Legacy (Defense Information Systems Agency, since 1991-07), 0 adresses (0%) advertised, 16.777.216 (100%) assigned but not advertised, 0 (0%) available in pool 30: Legacy (Defense Information Systems Agency, since 1991-07), 0 adresses (0%) advertised, 16.777.216 (100%) assigned but not advertised, 0 (0%) available in pool 31: RIPE NCC (since 2010-05), 16.350.208 adresses (97%) advertised, 494.592 (3%) assigned but not advertised, 18.432 (0%) available in pool 32: Legacy (AT&T Global Network Services, since 1994-06), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 33: Legacy (DLA Systems Automation Center, since 1991-01), 512 adresses (0%) advertised, 16.776.704 (100%) assigned but not advertised, 0 (0%) available in pool 34: Legacy (Halliburton Company, since 1993-03), 89.088 adresses (1%) advertised, 16.688.128 (99%) assigned but not advertised, 0 (0%) available in pool 35: Legacy (Administered by ARIN, since 1994-04), 12.582.912 adresses (75%) advertised, 4.194.304 (25%) assigned but not advertised, 0 (0%) available in pool 36: APNIC (since 2010-10), 10.334.976 adresses (62%) advertised, 6.311.168 (38%) assigned but not advertised, 0 (0%) available in pool 37: RIPE NCC (since 2010-11), 16.099.584 adresses (96%) advertised, 759.808 (5%) assigned but not advertised, 22.528 (0%) available in pool 38: Legacy (PSINet, Inc., since 1994-09), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 39: APNIC (since 2011-01), 12.555.264 adresses (75%) advertised, 4.221.952 (25%) assigned but not advertised, 0 (0%) available in pool 40: Legacy (Administered by ARIN, since 1994-06), 4.971.776 adresses (30%) advertised, 11.805.440 (70%) assigned but not advertised, 0 (0%) available in pool 41: AFRINIC (since 2005-04), 15.737.088 adresses (94%) advertised, 773.120 (5%) assigned but not advertised, 66.560 (0%) available in pool 42: APNIC (since 2010-10), 8.685.824 adresses (52%) advertised, 8.091.392 (48%) assigned but not advertised, 0 (0%) available in pool 43: Legacy (Administered by APNIC, since 1991-01), 572.416 adresses (3%) advertised, 15.343.360 (91%) assigned but not advertised, 780.032 (5%) available in pool 44: Legacy (Amateur Radio Digital Communications, since 1992-07), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 45: Legacy (Administered by ARIN, since 1995-01), 3.254.016 adresses (19%) advertised, 96.256 (1%) assigned but not advertised, 10.420.224 (62%) available in pool 46: RIPE NCC (since 2009-09), 16.397.824 adresses (98%) advertised, 711.936 (4%) assigned but not advertised, 2.048 (0%) available in pool 47: Legacy (Administered by ARIN, since 1991-01), 2.686.976 adresses (16%) advertised, 14.090.240 (84%) assigned but not advertised, 0 (0%) available in pool 48: Legacy (Prudential Securities Inc., since 1995-05), 0 adresses (0%) advertised, 16.777.216 (100%) assigned but not advertised, 0 (0%) available in pool 49: APNIC (since 2010-08), 13.846.016 adresses (83%) advertised, 2.961.152 (18%) assigned but not advertised, 0 (0%) available in pool 50: ARIN (since 2010-02), 16.606.720 adresses (99%) advertised, 178.176 (1%) assigned but not advertised, 0 (0%) available in pool 51: Legacy (UK Government Department for Work and Pensions, since 1994-08), 0 adresses (0%) advertised, 16.777.216 (100%) assigned but not advertised, 0 (0%) available in pool 52: Legacy (E.I. duPont de Nemours and Co., Inc., since 1991-12), 7.680 adresses (0%) advertised, 16.769.536 (100%) assigned but not advertised, 0 (0%) available in pool 53: Legacy (Cap Debis CCS, since 1993-10), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 54: Legacy (Administered by ARIN, since 1992-03), 7.423.488 adresses (44%) advertised, 9.353.728 (56%) assigned but not advertised, 0 (0%) available in pool 55: Legacy (DoD Network Information Center, since 1995-04), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 56: Legacy (US Postal Service, since 1994-06), 69.632 adresses (0%) advertised, 16.707.584 (100%) assigned but not advertised, 0 (0%) available in pool 57: Legacy (SITA, since 1995-05), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 58: APNIC (since 2004-04), 16.248.576 adresses (97%) advertised, 515.072 (3%) assigned but not advertised, 0 (0%) available in pool 59: APNIC (since 2004-04), 12.137.984 adresses (72%) advertised, 4.616.704 (28%) assigned but not advertised, 0 (0%) available in pool 60: APNIC (since 2003-04), 16.368.896 adresses (98%) advertised, 408.320 (2%) assigned but not advertised, 0 (0%) available in pool 61: APNIC (since 1997-04), 16.503.808 adresses (98%) advertised, 529.408 (3%) assigned but not advertised, 0 (0%) available in pool 62: RIPE NCC (since 1997-04), 16.037.376 adresses (96%) advertised, 813.312 (5%) assigned but not advertised, 34.304 (0%) available in pool 63: ARIN (since 1997-04), 16.646.144 adresses (99%) advertised, 131.072 (1%) assigned but not advertised, 0 (0%) available in pool 64: ARIN (since 1999-07), 15.915.520 adresses (95%) advertised, 907.520 (5%) assigned but not advertised, 15.360 (0%) available in pool 65: ARIN (since 2000-07), 16.066.560 adresses (96%) advertised, 711.936 (4%) assigned but not advertised, 0 (0%) available in pool 66: ARIN (since 2000-07), 16.279.808 adresses (97%) advertised, 512.768 (3%) assigned but not advertised, 38.912 (0%) available in pool 67: ARIN (since 2001-05), 16.244.736 adresses (97%) advertised, 530.944 (3%) assigned but not advertised, 5.632 (0%) available in pool 68: ARIN (since 2001-06), 16.610.304 adresses (99%) advertised, 169.216 (1%) assigned but not advertised, 1.536 (0%) available in pool 69: ARIN (since 2002-08), 15.893.760 adresses (95%) advertised, 1.007.616 (6%) assigned but not advertised, 20.992 (0%) available in pool 70: ARIN (since 2004-01), 16.626.432 adresses (99%) advertised, 168.448 (1%) assigned but not advertised, 0 (0%) available in pool 71: ARIN (since 2004-08), 16.519.424 adresses (98%) advertised, 345.856 (2%) assigned but not advertised, 4.096 (0%) available in pool 72: ARIN (since 2004-08), 16.275.712 adresses (97%) advertised, 595.456 (4%) assigned but not advertised, 0 (0%) available in pool 73: ARIN (since 2005-03), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 74: ARIN (since 2005-06), 16.400.640 adresses (98%) advertised, 383.744 (2%) assigned but not advertised, 0 (0%) available in pool 75: ARIN (since 2005-06), 16.323.840 adresses (97%) advertised, 453.376 (3%) assigned but not advertised, 0 (0%) available in pool 76: ARIN (since 2005-06), 15.027.712 adresses (90%) advertised, 1.801.728 (11%) assigned but not advertised, 0 (0%) available in pool 77: RIPE NCC (since 2006-08), 16.555.264 adresses (99%) advertised, 254.464 (2%) assigned but not advertised, 75.776 (0%) available in pool 78: RIPE NCC (since 2006-08), 16.684.800 adresses (99%) advertised, 126.464 (1%) assigned but not advertised, 12.288 (0%) available in pool 79: RIPE NCC (since 2006-08), 16.514.048 adresses (98%) advertised, 339.712 (2%) assigned but not advertised, 10.240 (0%) available in pool 80: RIPE NCC (since 2001-04), 16.300.544 adresses (97%) advertised, 423.424 (3%) assigned but not advertised, 26.624 (0%) available in pool 81: RIPE NCC (since 2001-04), 16.090.624 adresses (96%) advertised, 659.200 (4%) assigned but not advertised, 24.576 (0%) available in pool 82: RIPE NCC (since 2002-11), 16.449.280 adresses (98%) advertised, 328.960 (2%) assigned but not advertised, 4.096 (0%) available in pool 83: RIPE NCC (since 2003-11), 16.332.420 adresses (97%) advertised, 500.604 (3%) assigned but not advertised, 16.384 (0%) available in pool 84: RIPE NCC (since 2003-11), 16.541.696 adresses (99%) advertised, 219.136 (1%) assigned but not advertised, 20.480 (0%) available in pool 85: RIPE NCC (since 2004-04), 16.322.304 adresses (97%) advertised, 531.968 (3%) assigned but not advertised, 32.768 (0%) available in pool 86: RIPE NCC (since 2004-04), 14.261.248 adresses (85%) advertised, 2.501.376 (15%) assigned but not advertised, 18.432 (0%) available in pool 87: RIPE NCC (since 2004-04), 16.349.952 adresses (97%) advertised, 448.000 (3%) assigned but not advertised, 4.096 (0%) available in pool 88: RIPE NCC (since 2004-04), 16.525.824 adresses (99%) advertised, 277.504 (2%) assigned but not advertised, 0 (0%) available in pool 89: RIPE NCC (since 2005-06), 16.432.896 adresses (98%) advertised, 494.080 (3%) assigned but not advertised, 18.432 (0%) available in pool 90: RIPE NCC (since 2005-06), 13.325.568 adresses (79%) advertised, 3.451.648 (21%) assigned but not advertised, 0 (0%) available in pool 91: RIPE NCC (since 2005-06), 15.978.240 adresses (95%) advertised, 715.520 (4%) assigned but not advertised, 116.736 (1%) available in pool 92: RIPE NCC (since 2007-03), 14.674.688 adresses (87%) advertised, 2.096.640 (12%) assigned but not advertised, 12.288 (0%) available in pool 93: RIPE NCC (since 2007-03), 16.614.656 adresses (99%) advertised, 267.520 (2%) assigned but not advertised, 28.672 (0%) available in pool 94: RIPE NCC (since 2007-07), 15.992.576 adresses (95%) advertised, 819.200 (5%) assigned but not advertised, 24.576 (0%) available in pool 95: RIPE NCC (since 2007-07), 16.486.400 adresses (98%) advertised, 534.016 (3%) assigned but not advertised, 5.120 (0%) available in pool 96: ARIN (since 2006-10), 16.338.944 adresses (97%) advertised, 449.792 (3%) assigned but not advertised, 0 (0%) available in pool 97: ARIN (since 2006-10), 16.414.976 adresses (98%) advertised, 366.080 (2%) assigned but not advertised, 0 (0%) available in pool 98: ARIN (since 2006-10), 16.409.344 adresses (98%) advertised, 384.512 (2%) assigned but not advertised, 0 (0%) available in pool 99: ARIN (since 2006-10), 15.637.248 adresses (93%) advertised, 1.139.968 (7%) assigned but not advertised, 0 (0%) available in pool 100: ARIN (since 2010-11), 2.648.064 adresses (16%) advertised, 9.934.848 (59%) assigned but not advertised, 0 (0%) available in pool, 4.194.304 (25%) reserved by the IETF 101: APNIC (since 2010-08), 13.331.200 adresses (79%) advertised, 3.443.968 (21%) assigned but not advertised, 0 (0%) available in pool 102: AFRINIC (since 2011-02), 0 adresses (0%) advertised, 0 (0%) assigned but not advertised, 16.777.216 (100%) available in pool 103: APNIC (since 2011-02), 3.063.552 adresses (18%) advertised, 1.587.200 (9%) assigned but not advertised, 12.099.072 (72%) available in pool 104: ARIN (since 2011-02), 12.448.256 adresses (74%) advertised, 900.352 (5%) assigned but not advertised, 2.852.864 (17%) available in pool 105: AFRINIC (since 2010-11), 14.784.256 adresses (88%) advertised, 2.255.104 (13%) assigned but not advertised, 0 (0%) available in pool 106: APNIC (since 2011-01), 13.020.416 adresses (78%) advertised, 3.748.608 (22%) assigned but not advertised, 0 (0%) available in pool 107: ARIN (since 2010-02), 11.376.384 adresses (68%) advertised, 5.415.680 (32%) assigned but not advertised, 0 (0%) available in pool 108: ARIN (since 2008-12), 17.116.160 adresses (102%) advertised, 711.680 (4%) assigned but not advertised, 4.096 (0%) available in pool 109: RIPE NCC (since 2009-01), 16.393.984 adresses (98%) advertised, 506.880 (3%) assigned but not advertised, 8.192 (0%) available in pool 110: APNIC (since 2008-11), 16.033.280 adresses (96%) advertised, 740.864 (4%) assigned but not advertised, 0 (0%) available in pool 111: APNIC (since 2008-11), 16.100.608 adresses (96%) advertised, 734.208 (4%) assigned but not advertised, 0 (0%) available in pool 112: APNIC (since 2008-05), 16.531.200 adresses (99%) advertised, 244.992 (1%) assigned but not advertised, 0 (0%) available in pool 113: APNIC (since 2008-05), 16.192.000 adresses (97%) advertised, 810.240 (5%) assigned but not advertised, 0 (0%) available in pool 114: APNIC (since 2007-10), 15.209.216 adresses (91%) advertised, 2.537.472 (15%) assigned but not advertised, 0 (0%) available in pool 115: APNIC (since 2007-10), 15.425.536 adresses (92%) advertised, 1.400.832 (8%) assigned but not advertised, 0 (0%) available in pool 116: APNIC (since 2007-01), 11.251.456 adresses (67%) advertised, 5.484.800 (33%) assigned but not advertised, 0 (0%) available in pool 117: APNIC (since 2007-01), 15.856.640 adresses (95%) advertised, 939.520 (6%) assigned but not advertised, 0 (0%) available in pool 118: APNIC (since 2007-01), 15.072.768 adresses (90%) advertised, 1.696.000 (10%) assigned but not advertised, 0 (0%) available in pool 119: APNIC (since 2007-01), 15.915.520 adresses (95%) advertised, 1.138.176 (7%) assigned but not advertised, 0 (0%) available in pool 120: APNIC (since 2007-01), 15.678.720 adresses (93%) advertised, 1.322.496 (8%) assigned but not advertised, 0 (0%) available in pool 121: APNIC (since 2006-01), 16.560.640 adresses (99%) advertised, 442.880 (3%) assigned but not advertised, 0 (0%) available in pool 122: APNIC (since 2006-01), 15.721.984 adresses (94%) advertised, 1.083.648 (6%) assigned but not advertised, 0 (0%) available in pool 123: APNIC (since 2006-01), 15.690.240 adresses (94%) advertised, 1.091.584 (7%) assigned but not advertised, 0 (0%) available in pool 124: APNIC (since 2005-01), 15.871.488 adresses (95%) advertised, 904.960 (5%) assigned but not advertised, 0 (0%) available in pool 125: APNIC (since 2005-01), 16.508.416 adresses (98%) advertised, 283.904 (2%) assigned but not advertised, 0 (0%) available in pool 126: APNIC (since 2005-01), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 127: Reserved by the IETF (not available) 128: Legacy (Administered by ARIN, since 1993-05), 13.636.096 adresses (81%) advertised, 3.197.440 (19%) assigned but not advertised, 3.072 (0%) available in pool 129: Legacy (Administered by ARIN, since 1993-05), 11.963.648 adresses (71%) advertised, 4.487.936 (27%) assigned but not advertised, 524.288 (3%) available in pool 130: Legacy (Administered by ARIN, since 1993-05), 11.721.472 adresses (70%) advertised, 4.988.928 (30%) assigned but not advertised, 69.632 (0%) available in pool 131: Legacy (Administered by ARIN, since 1993-05), 12.752.128 adresses (76%) advertised, 3.908.096 (23%) assigned but not advertised, 161.792 (1%) available in pool 132: Legacy (Administered by ARIN, since 1993-05), 15.053.824 adresses (90%) advertised, 1.530.880 (9%) assigned but not advertised, 65.536 (0%) available in pool 133: Legacy (Administered by APNIC, since 1997-03), 9.857.536 adresses (59%) advertised, 6.919.680 (41%) assigned but not advertised, 0 (0%) available in pool 134: Legacy (Administered by ARIN, since 1993-05), 12.129.280 adresses (72%) advertised, 4.601.856 (27%) assigned but not advertised, 0 (0%) available in pool 135: Legacy (Administered by ARIN, since 1993-05), 6.531.584 adresses (39%) advertised, 10.309.120 (61%) assigned but not advertised, 0 (0%) available in pool 136: Legacy (Administered by ARIN, since 1993-05), 5.445.632 adresses (32%) advertised, 11.331.584 (68%) assigned but not advertised, 0 (0%) available in pool 137: Legacy (Administered by ARIN, since 1993-05), 12.048.896 adresses (72%) advertised, 4.574.720 (27%) assigned but not advertised, 262.144 (2%) available in pool 138: Legacy (Administered by ARIN, since 1993-05), 10.154.752 adresses (61%) advertised, 5.530.368 (33%) assigned but not advertised, 1.068.544 (6%) available in pool 139: Legacy (Administered by ARIN, since 1993-05), 10.253.312 adresses (61%) advertised, 6.310.912 (38%) assigned but not advertised, 65.536 (0%) available in pool 140: Legacy (Administered by ARIN, since 1993-05), 9.823.744 adresses (59%) advertised, 7.123.456 (42%) assigned but not advertised, 65.536 (0%) available in pool 141: Legacy (Administered by RIPE NCC, since 1993-05), 12.645.120 adresses (75%) advertised, 4.140.544 (25%) assigned but not advertised, 0 (0%) available in pool 142: Legacy (Administered by ARIN, since 1993-05), 9.847.808 adresses (59%) advertised, 6.904.576 (41%) assigned but not advertised, 64.768 (0%) available in pool 143: Legacy (Administered by ARIN, since 1993-05), 11.730.944 adresses (70%) advertised, 4.747.008 (28%) assigned but not advertised, 327.680 (2%) available in pool 144: Legacy (Administered by ARIN, since 1993-05), 9.768.704 adresses (58%) advertised, 7.128.064 (42%) assigned but not advertised, 0 (0%) available in pool 145: Legacy (Administered by RIPE NCC, since 1993-05), 12.855.040 adresses (77%) advertised, 3.986.432 (24%) assigned but not advertised, 0 (0%) available in pool 146: Legacy (Administered by ARIN, since 1993-05), 9.882.624 adresses (59%) advertised, 6.813.952 (41%) assigned but not advertised, 65.536 (0%) available in pool 147: Legacy (Administered by ARIN, since 1993-05), 10.612.480 adresses (63%) advertised, 6.215.424 (37%) assigned but not advertised, 3.584 (0%) available in pool 148: Legacy (Administered by ARIN, since 1993-05), 8.406.272 adresses (50%) advertised, 7.926.528 (47%) assigned but not advertised, 511.488 (3%) available in pool 149: Legacy (Administered by ARIN, since 1993-05), 11.244.320 adresses (67%) advertised, 5.615.584 (33%) assigned but not advertised, 0 (0%) available in pool 150: Legacy (Administered by APNIC, since 1993-05), 9.590.528 adresses (57%) advertised, 7.166.976 (43%) assigned but not advertised, 0 (0%) available in pool 151: Legacy (Administered by RIPE NCC, since 1993-05), 12.302.336 adresses (73%) advertised, 3.942.144 (23%) assigned but not advertised, 0 (0%) available in pool 152: Legacy (Administered by ARIN, since 1993-05), 12.201.216 adresses (73%) advertised, 4.444.928 (26%) assigned but not advertised, 0 (0%) available in pool 153: Legacy (Administered by APNIC, since 1993-05), 12.317.952 adresses (73%) advertised, 4.471.552 (27%) assigned but not advertised, 0 (0%) available in pool 154: Legacy (Administered by AFRINIC, since 1993-05), 6.782.976 adresses (40%) advertised, 963.584 (6%) assigned but not advertised, 9.030.656 (54%) available in pool 155: Legacy (Administered by ARIN, since 1993-05), 10.558.720 adresses (63%) advertised, 5.854.976 (35%) assigned but not advertised, 531.456 (3%) available in pool 156: Legacy (Administered by ARIN, since 1993-05), 5.222.912 adresses (31%) advertised, 5.234.944 (31%) assigned but not advertised, 6.488.064 (39%) available in pool 157: Legacy (Administered by ARIN, since 1993-05), 8.958.528 adresses (53%) advertised, 7.685.312 (46%) assigned but not advertised, 0 (0%) available in pool 158: Legacy (Administered by ARIN, since 1993-05), 10.118.912 adresses (60%) advertised, 6.737.152 (40%) assigned but not advertised, 75.776 (0%) available in pool 159: Legacy (Administered by ARIN, since 1993-05), 7.962.624 adresses (47%) advertised, 9.207.552 (55%) assigned but not advertised, 0 (0%) available in pool 160: Legacy (Administered by ARIN, since 1993-05), 8.412.160 adresses (50%) advertised, 5.289.728 (32%) assigned but not advertised, 2.555.904 (15%) available in pool 161: Legacy (Administered by ARIN, since 1993-05), 8.808.448 adresses (53%) advertised, 8.042.240 (48%) assigned but not advertised, 0 (0%) available in pool 162: Legacy (Administered by ARIN, since 1993-05), 9.887.744 adresses (59%) advertised, 7.092.736 (42%) assigned but not advertised, 1.024 (0%) available in pool 163: Legacy (Administered by APNIC, since 1993-05), 9.158.400 adresses (55%) advertised, 7.311.872 (44%) assigned but not advertised, 0 (0%) available in pool 164: Legacy (Administered by ARIN, since 1993-05), 7.725.056 adresses (46%) advertised, 8.923.392 (53%) assigned but not advertised, 4.096 (0%) available in pool 165: Legacy (Administered by ARIN, since 1993-05), 8.519.424 adresses (51%) advertised, 6.864.896 (41%) assigned but not advertised, 1.245.184 (7%) available in pool 166: Legacy (Administered by ARIN, since 1993-05), 11.597.824 adresses (69%) advertised, 4.999.168 (30%) assigned but not advertised, 0 (0%) available in pool 167: Legacy (Administered by ARIN, since 1993-05), 7.458.560 adresses (44%) advertised, 9.456.128 (56%) assigned but not advertised, 131.072 (1%) available in pool 168: Legacy (Administered by ARIN, since 1993-05), 10.405.376 adresses (62%) advertised, 5.583.104 (33%) assigned but not advertised, 851.968 (5%) available in pool 169: Legacy (Administered by ARIN, since 1993-05), 5.027.840 adresses (30%) advertised, 11.378.432 (68%) assigned but not advertised, 370.688 (2%) available in pool, 65.536 (0%) reserved by the IETF 170: Legacy (Administered by ARIN, since 1993-05), 7.627.520 adresses (45%) advertised, 8.375.552 (50%) assigned but not advertised, 1.185.792 (7%) available in pool 171: Legacy (Administered by APNIC, since 1993-05), 9.592.064 adresses (57%) advertised, 7.185.920 (43%) assigned but not advertised, 0 (0%) available in pool 172: Legacy (Administered by ARIN, since 1993-05), 9.496.576 adresses (57%) advertised, 2.299.904 (14%) assigned but not advertised, 4.194.304 (25%) available in pool, 1.048.576 (6%) reserved by the IETF 173: ARIN (since 2008-02), 16.204.288 adresses (97%) advertised, 572.160 (3%) assigned but not advertised, 3.584 (0%) available in pool 174: ARIN (since 2008-02), 16.049.920 adresses (96%) advertised, 733.184 (4%) assigned but not advertised, 0 (0%) available in pool 175: APNIC (since 2009-08), 16.112.384 adresses (96%) advertised, 637.184 (4%) assigned but not advertised, 0 (0%) available in pool 176: RIPE NCC (since 2010-05), 16.393.216 adresses (98%) advertised, 456.960 (3%) assigned but not advertised, 61.952 (0%) available in pool 177: LACNIC (since 2010-06), 16.084.736 adresses (96%) advertised, 897.280 (5%) assigned but not advertised, 0 (0%) available in pool 178: RIPE NCC (since 2009-01), 16.472.320 adresses (98%) advertised, 720.128 (4%) assigned but not advertised, 16.384 (0%) available in pool 179: LACNIC (since 2011-02), 15.966.720 adresses (95%) advertised, 818.944 (5%) assigned but not advertised, 0 (0%) available in pool 180: APNIC (since 2009-04), 16.167.424 adresses (96%) advertised, 610.048 (4%) assigned but not advertised, 0 (0%) available in pool 181: LACNIC (since 2010-06), 15.675.392 adresses (93%) advertised, 1.036.288 (6%) assigned but not advertised, 0 (0%) available in pool 182: APNIC (since 2009-08), 15.925.248 adresses (95%) advertised, 887.040 (5%) assigned but not advertised, 0 (0%) available in pool 183: APNIC (since 2009-04), 16.664.064 adresses (99%) advertised, 117.248 (1%) assigned but not advertised, 0 (0%) available in pool 184: ARIN (since 2008-12), 14.967.552 adresses (89%) advertised, 1.811.712 (11%) assigned but not advertised, 0 (0%) available in pool 185: RIPE NCC (since 2011-02), 3.379.712 adresses (20%) advertised, 1.288.192 (8%) assigned but not advertised, 12.199.936 (73%) available in pool 186: LACNIC (since 2007-09), 16.314.240 adresses (97%) advertised, 525.184 (3%) assigned but not advertised, 0 (0%) available in pool 187: LACNIC (since 2007-09), 14.665.984 adresses (87%) advertised, 2.105.344 (13%) assigned but not advertised, 0 (0%) available in pool 188: Legacy (Administered by RIPE NCC, since 1993-05), 16.234.496 adresses (97%) advertised, 807.680 (5%) assigned but not advertised, 10.240 (0%) available in pool 189: LACNIC (since 1995-06), 15.696.384 adresses (94%) advertised, 1.276.928 (8%) assigned but not advertised, 0 (0%) available in pool 190: LACNIC (since 1995-06), 16.073.984 adresses (96%) advertised, 554.496 (3%) assigned but not advertised, 0 (0%) available in pool 191: Legacy (Administered by LACNIC, since 1993-05), 15.977.216 adresses (95%) advertised, 804.096 (5%) assigned but not advertised, 0 (0%) available in pool 192: Legacy (Administered by ARIN, since 1993-05), 9.039.616 adresses (54%) advertised, 6.810.624 (41%) assigned but not advertised, 372.480 (2%) available in pool, 66.304 (0%) reserved by the IETF 193: RIPE NCC (since 1993-05), 13.459.328 adresses (80%) advertised, 2.662.544 (16%) assigned but not advertised, 79.496 (0%) available in pool 194: RIPE NCC (since 1993-05), 14.066.560 adresses (84%) advertised, 2.395.032 (14%) assigned but not advertised, 57.376 (0%) available in pool 195: RIPE NCC (since 1993-05), 15.510.400 adresses (92%) advertised, 1.147.584 (7%) assigned but not advertised, 41.056 (0%) available in pool 196: Legacy (Administered by AFRINIC, since 1993-05), 4.202.240 adresses (25%) advertised, 2.349.312 (14%) assigned but not advertised, 10.076.928 (60%) available in pool 197: AFRINIC (since 2008-10), 15.855.872 adresses (95%) advertised, 849.152 (5%) assigned but not advertised, 0 (0%) available in pool 198: Legacy (Administered by ARIN, since 1993-05), 12.222.464 adresses (73%) advertised, 4.390.528 (26%) assigned but not advertised, 11.776 (0%) available in pool, 131.328 (1%) reserved by the IETF 199: ARIN (since 1993-05), 10.830.848 adresses (65%) advertised, 6.014.720 (36%) assigned but not advertised, 62.464 (0%) available in pool 200: LACNIC (since 2002-11), 15.458.560 adresses (92%) advertised, 1.244.928 (7%) assigned but not advertised, 41.728 (0%) available in pool 201: LACNIC (since 2003-04), 14.913.024 adresses (89%) advertised, 1.749.248 (10%) assigned but not advertised, 8.192 (0%) available in pool 202: APNIC (since 1993-05), 13.524.352 adresses (81%) advertised, 3.077.248 (18%) assigned but not advertised, 0 (0%) available in pool 203: APNIC (since 1993-05), 14.044.588 adresses (84%) advertised, 2.718.724 (16%) assigned but not advertised, 0 (0%) available in pool, 256 (0%) reserved by the IETF 204: ARIN (since 1994-03), 12.589.312 adresses (75%) advertised, 4.232.192 (25%) assigned but not advertised, 33.536 (0%) available in pool 205: ARIN (since 1994-03), 10.706.432 adresses (64%) advertised, 6.091.264 (36%) assigned but not advertised, 24.320 (0%) available in pool 206: ARIN (since 1995-04), 14.147.104 adresses (84%) advertised, 2.604.256 (16%) assigned but not advertised, 35.072 (0%) available in pool 207: ARIN (since 1995-11), 14.759.936 adresses (88%) advertised, 2.007.296 (12%) assigned but not advertised, 44.544 (0%) available in pool 208: ARIN (since 1996-04), 16.365.824 adresses (98%) advertised, 467.968 (3%) assigned but not advertised, 19.712 (0%) available in pool 209: ARIN (since 1996-06), 15.111.168 adresses (90%) advertised, 1.620.992 (10%) assigned but not advertised, 17.408 (0%) available in pool 210: APNIC (since 1996-06), 15.749.376 adresses (94%) advertised, 1.234.688 (7%) assigned but not advertised, 0 (0%) available in pool 211: APNIC (since 1996-06), 16.589.856 adresses (99%) advertised, 838.624 (5%) assigned but not advertised, 0 (0%) available in pool 212: RIPE NCC (since 1997-10), 16.036.352 adresses (96%) advertised, 668.672 (4%) assigned but not advertised, 40.960 (0%) available in pool 213: RIPE NCC (since 1993-10), 16.107.008 adresses (96%) advertised, 598.016 (4%) assigned but not advertised, 65.536 (0%) available in pool 214: Legacy (US-DOD, since 1998-03), 16.777.216 adresses (100%) advertised, 0 (0%) assigned but not advertised, 0 (0%) available in pool 215: Legacy (US-DOD, since 1998-03), 8.388.608 adresses (50%) advertised, 8.388.608 (50%) assigned but not advertised, 0 (0%) available in pool 216: ARIN (since 1998-04), 15.873.792 adresses (95%) advertised, 875.008 (5%) assigned but not advertised, 48.896 (0%) available in pool 217: RIPE NCC (since 2000-06), 16.456.448 adresses (98%) advertised, 296.448 (2%) assigned but not advertised, 20.480 (0%) available in pool 218: APNIC (since 2000-12), 16.523.328 adresses (98%) advertised, 381.888 (2%) assigned but not advertised, 0 (0%) available in pool 219: APNIC (since 2001-09), 16.468.992 adresses (98%) advertised, 304.128 (2%) assigned but not advertised, 0 (0%) available in pool 220: APNIC (since 2001-12), 15.387.008 adresses (92%) advertised, 1.355.392 (8%) assigned but not advertised, 0 (0%) available in pool 221: APNIC (since 2002-07), 16.615.680 adresses (99%) advertised, 163.072 (1%) assigned but not advertised, 0 (0%) available in pool 222: APNIC (since 2003-02), 16.670.976 adresses (99%) advertised, 106.240 (1%) assigned but not advertised, 0 (0%) available in pool 223: APNIC (since 2010-04), 15.612.672 adresses (93%) advertised, 1.154.816 (7%) assigned but not advertised, 0 (0%) available in pool 224: Multicast 225: Multicast 226: Multicast 227: Multicast 228: Multicast 229: Multicast 230: Multicast 231: Multicast 232: Multicast 233: Multicast 234: Multicast 235: Multicast 236: Multicast 237: Multicast 238: Multicast 239: Multicast 240: Reserved by the IETF (not available) 241: Reserved by the IETF (not available) 242: Reserved by the IETF (not available) 243: Reserved by the IETF (not available) 244: Reserved by the IETF (not available) 245: Reserved by the IETF (not available) 246: Reserved by the IETF (not available) 247: Reserved by the IETF (not available) 248: Reserved by the IETF (not available) 249: Reserved by the IETF (not available) 250: Reserved by the IETF (not available) 251: Reserved by the IETF (not available) 252: Reserved by the IETF (not available) 253: Reserved by the IETF (not available) 254: Reserved by the IETF (not available) 255: Reserved by the IETF (not available)

IPv4 address space

The colors in the following image are based on the number of advertised addresses. Advertised addresses lag allocations, additionally many "legacy" blocks are not advertised.

IPv4 address space

The images are generated daily from the current assignment data from IANA and aggregated routing info from Geoff Huston's IPv4 Report.

Route announcements do not necessarily show that addresses are used or unused: IBM does not advertise any addresses from 9.0.0.0/8, but many of those addresses are used internally. Apple Computer Inc. announces 17.0.0.0/8, but probably uses fewer addresses than IBM (far fewer employees).

The Regional Internet Registries are:
AfriNICAfrica
APNICAsia/Pacific
ARINCanada, many Caribbean and North Atlantic islands, and the United States
LACNICLatin America and the Caribbean
RIPE NCCEurope, Middle East, and Parts of Central Asia

You connected using IPv4.

Webmaster: Martin Kotzan
Last updated: 22.09.2014 10:04