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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 512 |
| — |
| 2 |
| AS13391US | UNOS - United Network for Organ Sharing | 512 | — | 2 |
| AS6394US | DATA-BROADCASTING - Intercontinental Exchange, Inc. | 512 | — | 2 |
| AS401316US | PRAETORIAN - Praetorian Security, Inc. | 512 | — | 2 |
| AS18598US | CEQUINT-INC - Transaction Network Services, Inc. | 512 | — | 2 |
| AS395362US | 8X8-AS-1 - 8x8, Inc. | 512 | — | 2 |
| AS394260US | MCICS-394260 - Verizon | 512 | — | 2 |
| AS401081US | OPENINFRA-FL - Open Infra Inc. | 512 | — | 2 |
| AS400012US | YISD-COLO-500 - Ysleta Independent School District | 512 | — | 2 |
| AS36244US | SVEC - Shenandoah Valley Electric Cooperative | 512 | — | 1 |
| AS33419US | TRIBAL-FUSION - Exponential Interactive, Inc. | 512 | — | 2 |
| AS11929US | MFAOIL - MFA Oil Company | 512 | — | 2 |
| AS21912US | PACIFICTERRACE-GUEST-INTERNET - Pacific Terrace Hotel | 512 | — | 1 |
| AS394358US | SECU-1 - State Employees' Credit Union | 512 | — | 2 |
| AS63326US | CSQUARED - C Squared Systems, LLC | 512 | 16 | 2 |
| AS394632US | CMC - Catholic Medical Center | 512 | — | 1 |
| AS399417US | VORTEXOKMAIN - VortexOK.net LLC | 512 | 65.5K | 3 |
| AS54156US | CITY-OF-HUNTSVILLE - City of Huntsville | 512 | — | 2 |
| AS40618US | SESAME - Sesame Workshop | 512 | — | 2 |
| AS36709US | OPTIMA - NP Information Systems | 512 | — | 2 |
| AS395034US | ZTHERNET - Zthernet, LLC | 512 | — | 2 |
| AS395409US | NEOCITIES - Neocities | 512 | 16 | 3 |
| AS53721US | CORETELLIGENT - Coretelligent, LLC | 512 | — | 2 |
| AS46787US | RXLINC-INC - RXLINC LLC | 512 | — | 2 |
| AS398878US | S4-PROD-INTERNET-WEST01 - Merchant-Link, LLC | 512 | — | 2 |
| AS401739US | REDLUFF-NET01 - RedLuff, LLC | 512 | — | 2 |
| AS31844US | HOLDBROTHERS - Tafferer Trading LLC | 512 | — | 2 |
| AS394129US | USS - United Site Services | 512 | — | 2 |
| AS36003US | NOS-NOG - NOS Network Operations Group | 512 | 65.5K | 3 |
| AS15326US | HIGHERSPEED - Higherspeed Internet | 512 | 4.1K | 3 |
| AS29822US | ARCHER1 - Archer and Greiner | 512 | — | 2 |
| AS399524US | SOUNDLINE-01 - SoundLine Communications | 512 | — | 2 |
| AS23082US | MPHI - Michigan Public Health Institute | 512 | — | 2 |
| AS400271US | INTERCO-ASN01 - Interco Trading, Inc. | 512 | — | 2 |
| AS26940US | LEVI-STRAUSS-CO - Levi Strauss & Co. | 512 | — | 2 |
| AS399497US | TCBK-AS1 - Tri Counties Bank | 512 | — | 2 |
| AS46218US | COMPORIUM-AS-2 - Comporium, Inc | 512 | 65.5K | 6 |
| AS40267US | PCTI - Passaic County Technical Institute | 512 | 16 | 3 |
| AS396085US | SUPERIOR-LIVESTOCK-AUCTION - Superior Livestock Auction, LLC | 512 | — | 2 |
| AS395990US | IN-ASN01 - InitiumNovum, LLC | 512 | — | 2 |
| AS395141US | PRMHQ-AS1 - Primisys Computer Systems & Support, LLC | 512 | 65.5K | 3 |
| AS393584US | NANTCLOUDSERVICESLLC - NantCloud Services LLC | 512 | — | 2 |
| AS1803US | COGENT-1803 - Cogent Communications, LLC | 512 | — | 2 |
| AS16999US | WFSCORP - World Fuel Services Corporation | 512 | — | 2 |
| AS53736US | NUTANIX-IT - Nutanix | 512 | 33 | 5 |
| AS397589US | AMERICAN-DREAM-NJ - AMEREAM NJP, LLC | 512 | 65.5K | 2 |
| AS398863US | WHITECAP - White Cap Construction Supply | 512 | — | 2 |