Top organizations by IPv4 address space
Ranked by total IPv4 address space across each organization.
Leaderboard
Top organizations by IPv4 address space
Each organization links to its top ASNs.
| Rank | Organization | IPv4 addresses | ASN count | Top ASNs |
|---|---|---|---|---|
| 1 | United States Department of Defense (DoD) | 332 257 792 | 188 |
AS749: 224 166 400 | AS721: 72 221 440 | AS56: 7 763 968
|
| 2 | Amazon.com Inc. | 189 163 520 | 9 |
AS16509: 169 053 440 | AS14618: 20 079 872 | AS7224: 27 648
|
| 3 | China Telecom | 115 895 296 | 228 |
AS4134: 110 732 800 | AS140292: 1 126 400 | AS140061: 516 096
|
| 4 | AT&T Enterprises LLC | 106 875 904 | 42 |
AS7018: 92 882 432 | AS6389: 4 588 288 | AS20057: 4 101 888
|
| 5 | Verizon Business | 106 193 408 | 70 |
AS701: 41 745 408 | AS22394: 30 306 048 | AS6167: 17 692 672
|
| 6 | Comcast Cable Communications LLC | 68 770 560 | 46 |
AS7922: 68 080 896 | AS20214: 136 448 | AS33651: 73 472
|
| 7 | Microsoft Corporation | 67 337 728 | 19 |
AS8075: 65 692 928 | AS8070: 811 776 | AS3598: 533 504
|
| 8 | CHINA UNICOM China169 Backbone | 57 694 976 | 1 |
AS4837: 57 694 976
|
| 9 | Korea Telecom | 47 219 456 | 5 |
AS4766: 47 193 856 | AS45400: 25 344 | AS4040: 256
|
| 10 | China Mobile | 43 470 336 | 7 |
AS9808: 37 423 360 | AS24444: 2 049 792 | AS24445: 2 036 224
|
| 11 | Charter Communications Inc | 41 120 000 | 22 |
AS10796: 7 727 872 | AS20001: 7 201 280 | AS11427: 5 827 840
|
| 12 | SoftBank Corp. | 40 182 784 | 3 |
AS17676: 38 244 608 | AS4725: 1 931 520 | AS17505: 6 656
|
| 13 | Cogent Communications LLC | 35 934 976 | 21 |
AS174: 35 908 864 | AS4991: 16 384 | AS32068: 6 912
|
| 14 | Level 3 Parent LLC | 35 446 272 | 21 |
AS3356: 29 469 952 | AS3549: 5 031 424 | AS10753: 558 336
|
| 15 | Deutsche Telekom AG | 34 197 248 | 5 |
AS3320: 34 175 232 | AS2773: 13 824 | AS2792: 8 192
|
| 16 | CenturyLink Communications LLC | 31 737 088 | 36 |
AS209: 19 864 320 | AS3561: 8 919 808 | AS22561: 1 384 448
|
| 17 | NTT DOCOMO BUSINESS Inc. | 28 640 256 | 7 |
AS4713: 28 624 384 | AS38639: 13 312 | AS18072: 1 280
|
| 18 | Google LLC | 25 169 920 | 15 |
AS396982: 19 904 000 | AS15169: 2 550 016 | AS19527: 1 821 696
|
| 19 | TELEFÔNICA BRASIL S.A | 22 905 088 | 9 |
AS26599: 11 627 520 | AS27699: 4 645 632 | AS18881: 4 616 192
|
| 20 | Telecom Italia S.p.A. | 22 858 240 | 8 |
AS3269: 20 795 904 | AS16232: 1 777 664 | AS20746: 215 808
|
| 21 | Orange S.A. | 20 813 824 | 19 |
AS3215: 20 119 552 | AS5511: 417 280 | AS41128: 131 072
|
| 22 | KDDI CORPORATION | 18 043 648 | 1 |
AS2516: 18 043 648
|
| 23 | Apple Inc. | 18 013 184 | 2 |
AS714: 17 990 144 | AS6185: 23 040
|
| 24 | SK Broadband Co Ltd | 17 591 552 | 23 |
AS9318: 15 286 784 | AS17849: 313 344 | AS9689: 291 840
|
| 25 | China Education and Research Network Center | 17 176 832 | 1 |
AS4538: 17 176 832
|
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