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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 | 24,358 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,342 |
| PINNACLEBANK - Pinnacle Data Services, LLC |
| 512 |
| — |
| 2 |
| AS55098US | LOB-AS - Live Oak Bank | 512 | — | 2 |
| AS26963US | CCCU-1 - City & County Credit Union | 512 | — | 2 |
| AS813US | UUNET-CANADA - Verizon Business | 512 | — | 2 |
| AS393401US | HAYSMED - Hays Medical Center | 512 | — | 2 |
| AS20359US | PREFERREDMUTUALINSURANCECOMPANY - Preferred Mutual Insurance Company | 512 | — | 2 |
| AS396337US | DE - Dreisbach Enterprises, Inc. | 512 | — | 2 |
| AS394217US | IDAHO-DEPARTMENT-OF-HEALTHAND-WELFARE - State of Idaho | 512 | — | 1 |
| AS29913US | GEICO03 - GEICO | 512 | — | 2 |
| AS399210US | TSAUSWPDCPHX - The Salvation Army | 512 | — | 2 |
| AS5651US | GMLL-AS - GMLL CAPITAL MANAGEMENT LLC | 512 | — | 2 |
| AS393985US | AS-FFN - Freedom Financial Network, LLC. | 512 | — | 1 |
| AS399996US | QFLIX-INTERNET - QFLIX L.L.C. | 512 | — | 2 |
| AS20276US | GDVL - Global Data Vault, L.L.C | 512 | — | 2 |
| AS46330US | LICKINGMEMORIAL-HS - Licking Memorial Hospital | 512 | — | 1 |
| AS394196US | OCCU-CORP-INET - OREGON COMMUNITY CREDIT UNION | 512 | — | 2 |
| AS393663US | ACUMENT - Acument Global Technologies, Inc. | 512 | — | 2 |
| AS20320US | EVENLINK - Evenlink | 512 | — | 1 |
| AS14431US | UCC-INET - Umpqua Community College | 512 | — | 2 |
| AS397450US | COF94533 - City of Fairfield | 512 | — | 1 |
| AS968US | PACKETFRAME - Packetframe | 512 | 2 | 4 |
| AS36106US | MANAGEDNODES - Managed Nodes LLC | 512 | — | 1 |
| AS394866US | CORNERSTONE-HOME-LENDING-INC - Cornerstone Home Lending, Inc. | 512 | — | 2 |
| AS396146US | 396146 - Therap Services | 512 | — | 2 |
| AS395238US | BRAZOSPORTISD-01 - Brazosport Independent School District | 512 | — | 2 |
| AS401246US | SPPX - Silicon Prairie Portal & Exchange LLC | 512 | — | 2 |
| AS12219US | MILLERS-SUPPLIES-AT-WORK-INC - Miller's Supplies at Work | 512 | — | 2 |
| AS20145US | FCS - FLORIDA CANCER SPECIALISTS, P.L. | 512 | — | 2 |
| AS18561US | EPAM - EPAM Systems, Inc | 512 | 2 | 4 |
| AS1632US | SONIC-HEALTHCARE-USA-HNY - SONIC HEALTHCARE USA, INC. | 512 | — | 2 |
| AS53291US | WSFS-ASN - WSFS Bank | 512 | — | 2 |
| AS26004US | NTT-GLOBAL-DATA-CENTERS-AMERICA-INC - NTT Global Data Centers Americas, INC. | 512 | 4.1K | 3 |
| AS395890US | BROADVIEWFCU - Broadview Federal Credit Union | 512 | — | 2 |
| AS15301US | IOVATION-AS15301 - Trans | 512 | — | 2 |
| AS1087US | ISD271 - Bloomington Public School District | 512 | — | 1 |
| AS397605US | NISD-ASN-01 - Northwest ISD | 512 | — | 2 |
| AS136768US | VMTECHINC-AS-AP - VMTECH INC | 512 | — | 2 |
| AS17129US | POGOZONE-FN - PogoZone | 512 | — | 2 |
| AS14092US | AFS-9 - AMERIPRISE FINANCIAL SERVICES, LLC | 512 | — | 1 |
| AS395560US | THECULVERSTUDIOS - The Culver Studios | 512 | — | 2 |
| AS46232US | AURORATRADE-01 - AURORA TELECOMMUNICATIONS | 512 | — | 2 |
| AS400335US | CCTHITA-ASN-1 - Central Council of the Tlingit and Haida Indian Tribes of Alaska | 512 | — | 2 |
| AS53309US | BLACKHILLSCORP - Black Hills Corporation | 512 | — | 2 |
| AS395241US | MONITORING-AMERICA-ALARM-CO-OP - Monitoring America Alarm Co-Op | 512 | — | 2 |
| AS399936US | PBX-SALTLAKECITY - PBXIO LLC | 512 | 4.1K | 3 |
| AS33129US | CITY-OF-GARDEN-GROVE - City of Garden Grove | 512 | — | 2 |
| AS42495US | Spencer-Sharkey Spencer Sharkey | 512 | — | 2 |