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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 | 3,140 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,178 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,946 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,371 |
| SCLS - Suffolk Cooperative Library System |
| 512 |
| — |
| 1 |
| AS200074US | ASSWH SN SOLUTIONS LLC | 512 | 1 | 3 |
| AS21553US | ASP-MAIN - Aspirus, Inc. | 512 | — | 2 |
| AS47018US | CE-BGPAC - Covenant Eyes, Inc. | 512 | — | 2 |
| AS54964US | PBC-CORPASN - Premier Business Centers | 512 | — | 2 |
| AS399740US | NEOGOV-DR - NEOGOV | 512 | — | 2 |
| AS398287US | BITCOM - Bitcom | 512 | — | 2 |
| AS32727US | SB - SB Professional Services | 512 | — | 2 |
| AS397531US | ITS-NETWORK - Iowa Data Centers | 512 | — | 1 |
| AS54354US | CHESSCOM-01 - Chess.com, LLC | 512 | — | 2 |
| AS396483US | NRIM - Northrim Bancorp, Inc. | 512 | — | 2 |
| AS55226US | WELLP-10-FRONT1 - Wellpartner, Inc | 512 | — | 2 |
| AS14449US | FIRSTUP-ASN - Firstup, Inc. | 512 | — | 2 |
| AS401648US | EVERI GAMES - Everi Games Inc. | 512 | — | 2 |
| AS401014US | HQ-HAE-ASN-01 - Helena Agri-Enterprise, LLC | 512 | — | 2 |
| AS19085US | TGNA-KSDK - TEGNA Inc. | 512 | — | 2 |
| AS27528US | EIKON-ASN-01 - Eikon Therapeutics, Inc. | 512 | — | 1 |
| AS394041US | HF-RWC - HEARTFLOW INC | 512 | — | 2 |
| AS399615US | OCU-ASN01 - ORIX Corporation USA | 512 | — | 2 |
| AS396423US | COASTALFIBERNET - Coastal FiberNet, LLC | 512 | — | 2 |
| AS27201US | COLVA - CITY OF LYNCHBURG | 512 | — | 2 |
| AS395268US | INSPERITY - Insperity Services, L.P. | 512 | — | 2 |
| AS16783US | INVITE-US - INVITE Networks Incorporated | 512 | — | 1 |
| AS19147US | VANCOUVER-CLINIC - The Vancouver Clinic, Inc. P.S. | 512 | — | 2 |
| AS40334US | TGNA-KENS - TEGNA Inc. | 512 | — | 2 |
| AS54747US | UTASC - UMPQUA BANK | 512 | — | 2 |
| AS394074US | POGOZONE-ALLIXO - PogoZone | 512 | — | 2 |
| AS30151US | SLI-ASN - Silver Lake Internet, LLC | 512 | — | 1 |
| AS155US | DNIC-AS-00155 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS40063US | PYRANAH-COMMUNICATIONS - Pyranah Communications, LLC | 512 | — | 1 |
| AS18763US | PHJW-LLP - Paul, Hastings, Janofsky & Walker LLP | 512 | — | 2 |
| AS396033US | BFDX515 - BioFire Diagnostics, LLC | 512 | — | 2 |
| AS13565US | ORVIS - THE ORVIS COMPANY, INC. | 512 | — | 2 |
| AS53434US | SRI-INTERNATIONAL-PRINCETON - SRI International | 512 | — | 1 |
| AS32304US | AS-NATUSMED - Natus Medical Inc. | 512 | — | 2 |
| AS136768US | VMTECHINC-AS-AP - VMTECH INC | 512 | — | 2 |
| AS393505US | CENTRACU - Centra Credit Union | 512 | — | 2 |
| AS396072US | SCAG - Southern California Association of Governments | 512 | — | 2 |
| AS3043US | IMS - Amphibian Media Corporation | 512 | 65.5K | 3 |
| AS40000US | NOBLIS-AUTONOMOUS-SYSTEM - Noblis, Inc. | 512 | — | 2 |
| AS17388US | HOVERNET-AS - Hover Networks, Inc. | 512 | — | 2 |
| AS11710US | ABBATECH - ABBA TECHNOLOGIES | 512 | — | 2 |
| AS63333US | ASN-ONEOK-INC - ONEOK | 512 | — | 2 |
| AS11933US | ILS-VB-ATT-AS - Supply Technologies LLC | 512 | — | 2 |
| AS400782US | HARRIS-COUNTY-PUBLIC-LIBRARY - Harris County Public Library | 512 | — | 1 |
| AS393565US | MAXPOINT-INTERACTIVE - Valassis Digital Corp. | 512 | — | 1 |
| AS26957US | SSG-OHIO-MDC - SSG OHIO | 512 | — | 2 |