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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.7M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS6627US | GRAPEVINE - Grapevine Systems, Inc. | — | — | 0 |
| AS403190US | MC-AS1 - USP | — | — | 0 |
| AS7240US | URAEUS - Uraeus Consulting | — | — | 0 |
| AS4369US | IQUEST-ASN - InterQuest Inc. | — | — | 0 |
| AS4360US | AGNES-SCOTT - Agnes Scott College | — | — | 0 |
| AS4264US | CERNET-ASN-BLOCK - California Education and Research Federation Network | — | — | 0 |
| AS4291US | CENTURYLINK-QC-MOE-HELENA - CenturyLink Communications, LLC | — | — | 0 |
| AS4145US | UPS-AS4145 - UNITED PARCEL SERVICE | — | — | 0 |
| AS4112US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4288US | CENTURYLINK-TSDS-NCJCVL - CenturyLink Communications, LLC | — | — | 0 |
| AS4183US | UUNET-MCIWCOM - Verizon Business | — | — | 0 |
| AS5866US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5863US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5759US | RAINSTORM - Storm Network Systems, LLC | — | — | 0 |
| AS5804US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5649US | KEVNET-ASN - Kevin Communication Services | — | — | 0 |
| AS403087US | RBNOC - RB | — | — | 0 |
| AS3994US | INET-CORE-AS - Internetworsks, Inc. | — | — | 0 |
| AS4006US | COGENT-4006 - Cogent Communications, LLC | — | — | 0 |
| AS3761US | UTOPIA-FIBER-IT - UTOPIA | — | — | 0 |
| AS3664US | DNIC-ASBLK-03664-03667 - United States Department of Defense (DoD) | — | — | 0 |
| AS2972US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3907US | CONNECT-1-NET - Connected INC | — | — | 0 |
| AS3046US | RICE-AS3046 - Rice University | — | — | 0 |
| AS3016US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2978US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2990US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS244US | DNIC-AS-00244 - United States Department of Defense (DoD) | — | — | 0 |
| AS238US | MERIT-AS-15 - Merit Network Inc. | — | — | 0 |
| AS110US | XAIT-AS - Xerox Advanced Information Technology | — | — | 0 |
| AS3438US | ESNET-AS - ESnet | — | — | 0 |
| AS3841US | BIHS-NET - Brazos Information Highway Services | — | — | 0 |
| AS403032US | RDOFFUTTCO-AS - R.D. | — | — | 0 |
| AS402926US | ZENTRO-INTERNET-TEXAS - Everywhere | — | — | 0 |
| AS402989US | BMWOODS-01 - Brandermill | — | — | 0 |
| AS1400US | T2-CT-ASC - Charles Schwab & Co., Inc. | — | — | 0 |
| AS1392US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1263US | AS1263 - National Aeronautics and Space Administration | — | — | 0 |
| AS11US | HARVARD - Harvard University | — | — | 0 |
| AS615US | DNIC-AS-00615 - Headquarters, USAISC | — | — | 0 |
| AS598US | CENTURYLINK-LEGACY-LVLT-598 - Level 3 Parent, LLC | — | — | 0 |
| AS459US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS508US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS700US | ROKNET-AS - The Boeing Company | — | — | 0 |
| AS6447US | ROUTEVIEWS - University of Oregon | — | — | 0 |
| AS6390US | KANSASCITY - The Kansas City Star | — | — | 0 |