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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,171 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,368 |
| INU - DP Solutions, Inc. |
| 512 |
| — |
| 2 |
| AS400550US | SM-AS - Suburban Marine, Inc. | 512 | 4 | 6 |
| AS31986US | TENASKA-INC - Tenaska, Inc. | 512 | — | 2 |
| AS203975US | Zorn-Technologies Zorn Technologies LLC | 512 | 1 | 3 |
| AS26148US | CSMPR - Cooperativa de Seguros Multiples de Puerto Rico | 512 | — | 2 |
| AS25823US | FLAG-ORG - CHURCH OF SCIENTOLOGY FLAG SERVICE ORGANIZATION, INC. | 512 | — | 2 |
| AS402530US | FELWARE - Felware | 512 | 4.1K | 2 |
| AS17281US | AS-15 - CONSORTIUM FOR WORKER EDUCATION | 512 | — | 2 |
| AS5036US | WCA - Whalley Computer Associates | 512 | — | 2 |
| AS20193US | MODTECHGROUP - SineWave Technologies, Inc. | 512 | — | 2 |
| AS398023US | PVHMC-AS - Pomona Valley Hospital Medical Center | 512 | — | 2 |
| AS33016US | SMFE-BB - Payward, Inc. | 512 | — | 2 |
| AS27029US | SJE-INC - Primex | 512 | — | 2 |
| AS40534US | AM-AVK-MINDEN - American AVK Company | 512 | — | 2 |
| AS11964US | AWAC-HQ - Air Wisconsin Airlines Corporation | 512 | — | 2 |
| AS398204US | CITY-OF-STOCKTON - City of Stockton | 512 | — | 2 |
| AS396915US | AIRE-INTERNET-01 - Net Vision Communications, LLC | 512 | — | 1 |
| AS14679US | CURBASN - Curb Mobility, LLC | 512 | — | 2 |
| AS27303US | TGNA-WMAZ - TEGNA Inc. | 512 | — | 2 |
| AS401506US | TOGETHER-COMPUTER - Together Computer, Inc. | 512 | — | 2 |
| AS394566US | ALEGEUS-AS - ALEGEUS TECHNOLOGIES, LLC | 512 | 1 | 3 |
| AS395230US | ABM-IND-DR - ABM Industries | 512 | — | 2 |
| AS18669US | BSEC-CA-1 - Bal Seal Engineering Co. Inc. | 512 | — | 2 |
| AS3967US | NSM350 - Nationstar Mortgage, LLC | 512 | — | 2 |
| AS32766US | FIDELITY-BANK - Fidelity Bank, N.A. | 512 | — | 2 |
| AS22030US | ZIPCON-AS-1 - Zipcon LLC | 512 | — | 1 |
| AS17317US | THING5-NA - Thing5, LLC | 512 | — | 2 |
| AS399121US | CNB-OF-TEXAS - Citizens National Bank of Texas | 512 | — | 2 |
| AS1445US | MILLIMAN - Milliman, Inc. | 512 | — | 1 |
| AS5694US | UNIFIED-NET - Blue Cross Blue Shield Association | 512 | — | 2 |
| AS55084US | DRMC-AS-1 - DuBois Regional Medical Center | 512 | — | 1 |
| AS393917US | CVE - Cache Valley Electric Company | 512 | — | 2 |
| AS394730US | LEADFUSION - Leadfusion, Inc. | 512 | — | 1 |
| AS62932US | VISALIA-UNIFIED-SCHOOL-DISTRICT - VUSD | 512 | — | 2 |
| AS20446US | DUKELANA-20446 - Dukelana | 512 | 5 | 7 |
| AS11294US | SHUTTERFLY-LLC - Shutterfly, LLC | 512 | — | 1 |
| AS40096US | HPS-51-ASN - High Point Solutions, Inc. | 512 | — | 1 |
| AS36232US | NEXTGI - Nextgi, LLC. | 512 | 1 | 3 |
| AS46384US | WICONNECT-WIRELESS - WiConnect Wireless LLC | 512 | — | 2 |
| AS11657US | LEGG-MASON-CORP-NET - Legg Mason & Co., LLC | 512 | — | 2 |
| AS26246US | CNHIN-NAFTA - CNH INDUSTRIAL AMERICA LLC | 512 | — | 2 |
| AS32153US | SHORTSTRAVELMGM - Shorts Travel Management | 512 | — | 2 |
| AS27523US | KAWAII-NETWORKS - Kawaii Networks LLC | 512 | 518 | 10 |
| AS398538US | HERITAGE-BROADBAND-LLC - HERITAGE BROADBAND, LLC | 512 | — | 2 |
| AS398070US | MESQUITEISD-AS - Mesquite Independent School District | 512 | — | 2 |
| AS15718US | FL-749-15718 - FROSTWEB LLC | 512 | — | 2 |
| AS12235US | SEN-1 - SmartEdgeNet LLC | 512 | — | 2 |