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) | 334 780 928 | 184 |
AS749: 224 169 216 | AS721: 72 101 120 | AS56: 7 765 248
|
| 2 | Amazon.com Inc. | 177 013 248 | 8 |
AS16509: 157 544 448 | AS14618: 19 441 920 | AS7224: 24 064
|
| 3 | China Telecom | 115 305 728 | 227 |
AS4134: 110 703 872 | AS140292: 1 123 328 | AS140061: 516 096
|
| 4 | AT&T Enterprises LLC | 106 953 984 | 39 |
AS7018: 92 815 104 | AS6389: 4 588 288 | AS20057: 4 166 912
|
| 5 | Verizon Business | 105 397 504 | 67 |
AS701: 41 417 472 | AS22394: 30 306 048 | AS6167: 17 086 976
|
| 6 | Comcast Cable Communications LLC | 68 744 448 | 41 |
AS7922: 68 025 856 | AS20214: 136 448 | AS53297: 131 072
|
| 7 | Microsoft Corporation | 67 307 264 | 19 |
AS8075: 65 668 864 | AS8070: 811 264 | AS3598: 533 504
|
| 8 | CHINA UNICOM China169 Backbone | 57 670 912 | 1 |
AS4837: 57 670 912
|
| 9 | Korea Telecom | 47 221 248 | 4 |
AS4766: 47 195 648 | AS45400: 25 600 | AS3559: 0
|
| 10 | China Mobile | 41 747 456 | 6 |
AS9808: 35 754 496 | AS24444: 2 048 768 | AS24445: 2 036 224
|
| 11 | Charter Communications Inc | 40 186 624 | 20 |
AS10796: 7 723 776 | AS20001: 6 741 248 | AS33363: 5 815 808
|
| 12 | SoftBank Corp. | 39 671 552 | 3 |
AS17676: 37 667 328 | AS4725: 1 997 568 | AS17505: 6 656
|
| 13 | Cogent Communications LLC | 36 106 240 | 17 |
AS174: 35 922 688 | AS7421: 163 840 | AS4991: 16 384
|
| 14 | Level 3 Parent LLC | 34 577 664 | 18 |
AS3356: 28 882 432 | AS3549: 5 029 888 | AS10753: 341 504
|
| 15 | Deutsche Telekom AG | 34 227 712 | 5 |
AS3320: 34 207 744 | AS2773: 11 776 | AS2792: 8 192
|
| 16 | CenturyLink Communications LLC | 30 224 640 | 36 |
AS209: 20 004 352 | AS3561: 7 093 504 | AS22561: 1 515 520
|
| 17 | NTT DOCOMO BUSINESS Inc. | 28 641 280 | 6 |
AS4713: 28 626 432 | AS38639: 13 312 | AS18072: 1 280
|
| 18 | Google LLC | 24 433 408 | 15 |
AS396982: 19 934 976 | AS15169: 1 902 592 | AS19527: 1 821 696
|
| 19 | TELEFÔNICA BRASIL S.A | 22 907 136 | 9 |
AS26599: 11 627 520 | AS27699: 4 644 352 | AS18881: 4 616 192
|
| 20 | Telecom Italia S.p.A. | 22 845 952 | 8 |
AS3269: 20 787 968 | AS16232: 1 777 664 | AS20746: 209 408
|
| 21 | Orange S.A. | 20 618 496 | 18 |
AS3215: 20 069 632 | AS5511: 401 920 | AS2278: 98 560
|
| 22 | British Telecommunications PLC | 19 173 120 | 7 |
AS2856: 15 846 912 | AS6871: 2 097 664 | AS5400: 697 600
|
| 23 | KDDI CORPORATION | 18 034 176 | 1 |
AS2516: 18 034 176
|
| 24 | Apple Inc. | 18 014 720 | 2 |
AS714: 17 990 144 | AS6185: 24 576
|
| 25 | SK Broadband Co Ltd | 17 589 760 | 23 |
AS9318: 15 284 992 | AS17849: 313 344 | AS9689: 291 840
|
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