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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.1M | 24,630 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,219 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| AVISPL - Signal Perfection, Ltd., Inc. |
| 256 |
| — |
| 1 |
| AS18461US | BELL-ATL - Verizon Business | 256 | — | 1 |
| AS402037US | 2GHZ-NET-ASN-01 - 2ghz.net LLC | 256 | 256 | 2 |
| AS400009US | RELSPACE-ASN-01 - Relativity Space, Inc. | 256 | — | 1 |
| AS397854US | SARATOGAHOSP - Saratoga Hospital | 256 | — | 1 |
| AS400527US | AS-PROPONENT - Proponent | 256 | — | 1 |
| AS396907US | XANTERRA - XANTERRA Inc. | 256 | — | 1 |
| AS398244US | ECHONET-01 - EchoNet | 256 | — | 1 |
| AS11622US | OFPD - Orland Fire Protection District | 256 | — | 1 |
| AS27515US | WORKD-LAB - Workday, Inc. | 256 | — | 1 |
| AS139705US | TNSI-AS-AP - Transaction Network Services | 256 | — | 1 |
| AS402156US | CLOUDLOGICS-1 - CloudLogics LLC | 256 | — | 1 |
| AS35619US | MHS-331-35619 - Amergis Healthcare Staffing, Inc. | 256 | — | 1 |
| AS14784US | STCU - SPOKANE TEACHERS CREDIT UNION | 256 | — | 1 |
| AS16517US | LEEPROCESS - LEE & ASSOCIATES LLC | 256 | — | 1 |
| AS11208US | HCPL-AS - HALL CAPITAL PARTNERS, LLC | 256 | — | 1 |
| AS40362US | CHAPIN-AS - Chapin School | 256 | — | 1 |
| AS402573US | GAIA-01 - GAIA | 256 | — | 1 |
| AS15281US | NGCPUB - National Gypsum Company | 256 | — | 1 |
| AS46480US | PEKIN-INSURANCE-HOME-OFFICE - Pekin Insurance | 256 | — | 1 |
| AS395585US | WAUSAUSUPPLYCOMPANY - Wausau Supply Co. | 256 | 1 | 2 |
| AS393766US | PDSDNET - Penn Delco School District | 256 | — | 1 |
| AS4923US | AS-SCF-DC - SCF | 256 | — | 1 |
| AS207465US | NetDEF-US Network Device Education Foundation Inc | 256 | 3 | 4 |
| AS399598US | LNS - Local Network Solutions, Inc. | 256 | 65.5K | 2 |
| AS36155US | RAMCHEALTH - Reedsburg Area Medical Center Inc. | 256 | — | 1 |
| AS400000US | PCB - PCB Piezotronics, Inc. | 256 | — | 1 |
| AS22028US | TEXAS-LIFE-HOME-OFFICE - Texas Life Insurance Company | 256 | — | 1 |
| AS2738US | AS-SHIELDS-COM - Shields Health Care Group | 256 | — | 1 |
| AS27137US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 256 | — | 1 |
| AS62677US | WFASN - William Floyd Union Free School District | 256 | — | 1 |
| AS394093US | HS-ASN - Hallmark Sweet, INC | 256 | — | 1 |
| AS401209US | AS-PACS-1 - Precision Accounting and Consulting Services, Inc. | 256 | 17 | 3 |
| AS395957US | POLARSEMI - Polar Semiconductor, LLC | 256 | — | 1 |
| AS46769US | TELECAST COMMUNICATIONS - Telecast Communications | 256 | — | 1 |
| AS14582US | DICKINSON-FINANCIAL-CORPORATION - Dickinson Financial Corporation | 256 | — | 1 |
| AS401620US | HOLOCENE ADVISORS LP - Holocene Advisors, LP | 256 | — | 1 |
| AS7761US | AS-350E - Morningstar, Inc. | 256 | — | 1 |
| AS395147US | ODYSSEY-IP - Odyssey Investment Partners, LLC. | 256 | — | 1 |
| AS19944US | GRANITEIX-SERVICES - GraniteIX LLC | 256 | 256 | 2 |
| AS14906US | MAXIM-7227 - Maxim Healthcare Services, Inc. | 256 | — | 1 |
| AS27622US | RSA-AL - Retirement Systems of Alabama | 256 | — | 1 |
| AS27241US | AS-CP01 - Community Products, LLC | 256 | — | 1 |
| AS31787US | MPORTHO - Microport Orthopedics, Inc. | 256 | — | 1 |
| AS31999US | LAKESUMTERSTATECOLLEGE - Lake Sumter State College | 256 | — | 1 |
| AS393590US | HBHGA - The Original Honey Baked Ham Company of Georgia, Inc. | 256 | — | 1 |
| AS402555US | RIKKIA-NETWORK-01 - Rikkia | 256 | 1 | 2 |