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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| 1K |
| — |
| 3 |
| AS46351US | BBHSOLUTIONS - BBH Solutions Inc. | 1K | — | 1 |
| AS62872US | CBTS-AS-DC2 - Cincinnati Bell Technology Solutions | 1K | — | 1 |
| AS14753US | UNIVE-80 - Universal Consulting | 1K | — | 4 |
| AS11222US | PRL - Ralph Lauren Corporation | 1K | — | 4 |
| AS53383US | PROMISE-REGIONAL-MEDICAL-CENTER---HUTCHINSON-INC - Hutchinson Regional Medical Center | 1K | — | 1 |
| AS400496US | AMERICANFIBERNET - American Fiber Network, Inc. | 1K | 69.6K | 6 |
| AS398748US | ONECORP-USA - oneCorp USA, Inc. | 1K | 65.5K | 5 |
| AS2933US | NETNODE - Real/Time Communications | 1K | — | 1 |
| AS40518US | MANOR-CARE - HCR Manorcare | 1K | — | 4 |
| AS396289US | WASHCORP-AS2 - Washington Corporations | 1K | — | 3 |
| AS19061US | ASN-CCILINK - CCiLink LLC | 1K | — | 1 |
| AS400371US | KHIMAIL - PUEBLO OF LAGUNA UTILITY AUTHORITY | 1K | — | 3 |
| AS400115US | TREEHOUSE - Treehouse Broadband, LLC | 1K | 65.5K | 4 |
| AS15092US | STAR2STAR - Sangoma US Inc. | 1K | 2 | 6 |
| AS398284US | LAT-US-01 - Lufthansa Aviation Training USA, Inc | 1K | — | 4 |
| AS983US | AKARI-NETWORKS - Akari Networks LLC | 1K | 4.1K | 5 |
| AS29851US | WARBURGPINCUS - E.M. Warburg, Pincus & Co. Inc. | 1K | — | 4 |
| AS36267US | BPVN - BPVN LLC | 1K | — | 1 |
| AS1412US | GRVYUS-PIT-A - Gravity Interactive, Inc. | 1.1K | 1 | 3 |
| AS21881US | RRMS-CORONA - RAPID RESPONSE MONITORING SERVICES INCORPORATED | 1.1K | — | 4 |
| AS19920US | AKINBGP - Akin, Gump, Strauss, Hauer, & Feld | 1.1K | — | 5 |
| AS396437US | COMLABS - COMMUNICATIONS LABORATORIES | 1.1K | — | 5 |
| AS53670US | COMTECH21-AEON-BOSTON - Prescient Worldwide | 1.1K | 1 | 6 |
| AS62478US | CRADLEPOINT - Cradlepoint Inc. | 1.2K | — | 5 |
| AS14139US | AS-MAXOR - Maxor National Pharmacy Services, LLC | 1.3K | — | 4 |
| AS214150US | NET-PRISM Prism Cloud LLC | 1.3K | — | 5 |
| AS27239US | 101VOICE - 101VOICE | 1.3K | — | 4 |
| AS2274US | CBO - Congressional Budget Office | 1.3K | — | 5 |
| AS36299US | CAPSTONECO-1 - Capstone Investment Advisors LLC | 1.3K | — | 4 |
| AS54761US | ARIN-SAMBREEL-SVCS - Sambreel Services, LLC | 1.3K | — | 5 |
| AS11495US | COMNEXIA-CLEC - COMNEXIA Corporation | 1.3K | — | 5 |
| AS399522US | TP - The Producers, Inc. | 1.3K | 256 | 5 |
| AS401725US | OPENINFRA-TX - Open Infra Inc. | 1.3K | 256 | 5 |
| AS54106US | 8WIRE - 8-Wire LLC | 1.3K | — | 5 |
| AS396336US | HHS-DC - Holzer Health System | 1.3K | — | 5 |
| AS213510US | EJOHNSON Eric Johnson | 1.3K | — | 2 |
| AS15315US | IVANET-LISBON - IBASIS INC. | 1.3K | — | 4 |
| AS11480US | CITY-SIOUXFALLS - City of Sioux Falls | 1.3K | — | 2 |
| AS207847US | CloudBlast CloudBlast LLC | 1.3K | 18 | 8 |
| AS26453US | HOMETOWN-INTERNET - Hometown Internet LLC | 1.3K | — | 2 |
| AS33378US | ASN1 - EASTERN BANK | 1.3K | — | 5 |
| AS27349US | DNI-4305 - Definitive Networks, Inc. | 1.3K | — | 5 |
| AS396842US | RURALNET - RuralNET | 1.3K | 4.1K | 3 |
| AS63434US | NFA - National Futures Association | 1.3K | — | 5 |
| AS399587US | NODERINGS-AS - NodeRings LLC | 1.3K | 4.1K | 4 |
| AS398200US | JTN-COMMUNICATIONS - JTN Communications, LLC | 1.3K | — | 4 |