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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,540 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,305 |
| 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.
32,187 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,362 |
| 256 |
| — |
| 1 |
| AS23542US | CWI-FNG-ASN - Florida's Natural Growers, Inc. | 256 | — | 1 |
| AS46714US | IPC-ATL-56-TELX - IP Communications LLC | 256 | — | 1 |
| AS26007US | SWICKTECH - Swick Technologies, LLC | 256 | — | 1 |
| AS17236US | TULSAL-74103 - Tulsa City-County Library | 256 | — | 1 |
| AS62720US | IRONTONTELEPHONECO - Ironton Telephone Company | 256 | — | 1 |
| AS397748US | CMFHQ-ASN-01 - Country Music Foundation | 256 | 1 | 2 |
| AS401925US | GRAPE-AWS-1 - Grapevine Labs LLC | 256 | — | 1 |
| AS394348US | ARA-MOLINE - American Rental Association | 256 | — | 1 |
| AS400365US | SCH-K12 - School City of Hammond | 256 | — | 1 |
| AS10942US | PECHANGA-FIBER-AS - Pechanga Band of Indians | 256 | — | 1 |
| AS395786US | NOMADGCS-ASN - Nomad Global Communications Solutions, Inc. | 256 | — | 1 |
| AS399814US | LAER-AS-LHR1 - UnitedLayer, LLC | 256 | 1 | 2 |
| AS396161US | DSM-AIRPORT-AUTHORITY - Des Moines Airport Authority | 256 | — | 1 |
| AS401017US | AAICE-ASN - AAICE | 256 | — | 1 |
| AS63077US | CMV-1 - ConnectMe, LLC. | 256 | — | 1 |
| AS396953US | GRUNDY-IP-TRANSPORT - Grundy IP Transport Inc. | 256 | — | 1 |
| AS400023US | ISD279-OSSEO-AREA-SCHOOLS - ISD 279 Osseo Area Schools | 256 | — | 1 |
| AS19010US | HODC - FloWorks International LLC | 256 | — | 1 |
| AS399665US | ZOLL-BROOMFIELD - ZOLL Medical Corporation | 256 | — | 1 |
| AS399043US | PTOI - Puyallup Tribe of Indians | 256 | — | 1 |
| AS62690US | LAMPO-AS - Ramsey Solutions | 256 | — | 1 |
| AS14687US | NLG-ASN-1 - National Life Insurance Company | 256 | — | 1 |
| AS395018US | NPD-EURO - The NPD Group Inc. | 256 | — | 1 |
| AS398147US | COLLEGEOFTHEMAINLAND-1 - College of the Mainland | 256 | — | 1 |
| AS16927US | IHOPKC - IHOPKC | 256 | — | 1 |
| AS46983US | CL-ASN-01 - crunchdev LLC | 256 | — | 1 |
| AS218802US | NSHIELD Northshield LLC | 256 | — | 1 |
| AS53500US | WIDOJ - Wisconsin Department of Justice | 256 | — | 1 |
| AS394852US | ASN-AWC - Arizona Water Company | 256 | — | 1 |
| AS26508US | OSILAT - OSIbeyond LLC | 256 | — | 1 |
| AS30179US | DWS-01 - DWS | 256 | 512 | 6 |
| AS396236US | MIMOKC - MIMO 5G Internet | 256 | — | 1 |
| AS393563US | ACTIFIO-AS - Actifio, Inc. | 256 | — | 1 |
| AS31754US | NORTHWEST-FINANCIAL-CORP - Northwest Financial Corp | 256 | — | 1 |
| AS397945US | MTG - Madrone Technology Group Inc. | 256 | 4.1K | 2 |
| AS18999US | SAINTANDREWS-1 - SAINT ANDREW'S SCHOOL OF BOCA RATON, INC. | 256 | — | 1 |
| AS53372US | TGEN - TRANSLATIONAL GENOMICS RESEARCH INSTITUTE (TGEN) | 256 | — | 1 |
| AS394709US | HE-AS1 - HealthEdge Software, Inc. | 256 | — | 1 |
| AS62789US | PDQATS-AS - PDQ Enterprises LLC | 256 | — | 1 |
| AS55224US | MCS-AS - Marietta City Schools | 256 | — | 1 |
| AS30453US | INTERNET - Central Ohio Transit Authority | 256 | — | 1 |
| AS398085US | IHA-01 - Trinity Health IHA Medical Group | 256 | — | 1 |
| AS11988US | CEVA-US-MV - CEVA INC. | 256 | — | 1 |
| AS40683US | USPI - United Surgical Partners International, Inc. | 256 | — | 1 |
| AS400461US | CITYOFMIDLANDTX - City of Midland | 256 | — | 1 |
| AS394661US | MNA01 - Manning & Napier Advisors, LLC | 256 | — | 1 |