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) | 332 965 888 | 186 |
AS749: 224 167 168 | AS721: 72 229 632 | AS56: 7 764 224
|
| 2 | Amazon.com Inc. | 178 483 456 | 9 |
AS16509: 159 001 600 | AS14618: 19 450 368 | AS7224: 28 672
|
| 3 | China Telecom | 115 574 272 | 227 |
AS4134: 110 695 936 | AS140292: 1 122 304 | AS140061: 516 096
|
| 4 | AT&T Enterprises LLC | 106 992 384 | 42 |
AS7018: 92 879 872 | AS6389: 4 588 288 | AS20057: 4 101 888
|
| 5 | Verizon Business | 105 402 112 | 69 |
AS701: 41 417 728 | AS22394: 30 306 048 | AS6167: 17 091 072
|
| 6 | Comcast Cable Communications LLC | 70 113 792 | 45 |
AS7922: 68 025 856 | AS53297: 458 752 | AS393232: 393 216
|
| 7 | Microsoft Corporation | 67 316 992 | 19 |
AS8075: 65 677 056 | AS8070: 811 264 | AS3598: 533 504
|
| 8 | CHINA UNICOM China169 Backbone | 57 686 016 | 1 |
AS4837: 57 686 016
|
| 9 | Korea Telecom | 47 217 920 | 5 |
AS4766: 47 192 320 | AS45400: 25 344 | AS4040: 256
|
| 10 | China Mobile | 42 529 280 | 7 |
AS9808: 36 516 608 | AS24444: 2 048 768 | AS24445: 2 036 480
|
| 11 | Charter Communications Inc | 40 544 512 | 21 |
AS10796: 7 758 592 | AS20001: 6 944 512 | AS33363: 5 815 808
|
| 12 | SoftBank Corp. | 39 998 976 | 3 |
AS17676: 38 060 288 | AS4725: 1 932 032 | AS17505: 6 656
|
| 13 | Cogent Communications LLC | 35 953 664 | 19 |
AS174: 35 917 824 | AS4991: 16 384 | AS60504: 9 728
|
| 14 | Level 3 Parent LLC | 34 848 768 | 20 |
AS3356: 28 881 920 | AS3549: 5 031 168 | AS10753: 603 392
|
| 15 | Deutsche Telekom AG | 34 224 384 | 5 |
AS3320: 34 204 416 | AS2773: 11 776 | AS2792: 8 192
|
| 16 | CenturyLink Communications LLC | 29 634 304 | 36 |
AS209: 19 995 648 | AS3561: 6 702 080 | AS22561: 1 384 448
|
| 17 | NTT DOCOMO BUSINESS Inc. | 28 642 560 | 7 |
AS4713: 28 626 688 | AS38639: 13 312 | AS18072: 1 280
|
| 18 | Google LLC | 24 514 304 | 15 |
AS396982: 19 888 896 | AS15169: 1 959 936 | AS19527: 1 821 696
|
| 19 | TELEFÔNICA BRASIL S.A | 22 903 552 | 9 |
AS26599: 11 627 520 | AS27699: 4 644 352 | AS18881: 4 616 192
|
| 20 | Telecom Italia S.p.A. | 22 855 424 | 8 |
AS3269: 20 796 160 | AS16232: 1 777 664 | AS20746: 210 688
|
| 21 | Orange S.A. | 20 630 528 | 19 |
AS3215: 20 070 400 | AS5511: 413 184 | AS2278: 98 560
|
| 22 | British Telecommunications PLC | 19 174 656 | 7 |
AS2856: 15 848 448 | AS6871: 2 097 664 | AS5400: 697 600
|
| 23 | KDDI CORPORATION | 18 034 944 | 1 |
AS2516: 18 034 944
|
| 24 | Apple Inc. | 18 014 720 | 2 |
AS714: 17 990 144 | AS6185: 24 576
|
| 25 | SK Broadband Co Ltd | 17 594 368 | 23 |
AS9318: 15 289 600 | AS17849: 313 344 | AS9689: 291 840
|
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