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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 | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| — |
| — |
| 0 |
| AS21825US | ICT-ASN-01 - Icarus Technologies | — | — | 0 |
| AS21905US | OREGON-HEALTH-NETWORK - Oregon Health Network, Inc. | — | — | 0 |
| AS22004US | ABOUT-COM - ABOUT, INC. | — | — | 0 |
| AS22046US | AS-PCNET-INC - Corserva, Inc. | — | — | 0 |
| AS22126US | DISTRIBION-DALLAS - Distribion Inc | — | — | 0 |
| AS22176US | PCI-ASN - PCI | — | — | 0 |
| AS22199US | MEGAPATH8-US - GTT Americas, LLC | — | — | 0 |
| AS22333US | ABE - AB E-Commerce, LLC | — | — | 0 |
| AS22375US | FIRST-357 - Corelogic Solutions, LLC | — | — | 0 |
| AS22387US | SALEM-FIVE-BANK1 - Salem Five Bank | — | — | 0 |
| AS22426US | INTRINIUM - Intrinium, Inc. | — | — | 0 |
| AS22435US | PSFT-INC - Oracle Corporation | — | — | 0 |
| AS22492US | LEADCONNECTOR - Leadconnector LLC | — | — | 0 |
| AS22521US | VGN - Verizon Business | — | — | 0 |
| AS22545US | ELAVON - ELAVON | — | — | 0 |
| AS22560US | AS22560 - MasterCard Technologies LLC | — | — | 0 |
| AS22610US | CVH-NETBLK-1 - Coventry Health Care, Inc. | — | — | 0 |
| AS22626US | ADECTRA - Adectra LLC | — | — | 0 |
| AS22680US | ALIGNTECH - Align Technology, Inc. | — | — | 0 |
| AS22759US | ASTOUND-CABLE - Wave Broadband | — | — | 0 |
| AS22771US | THE-COMMON-FUND - The Common Fund | — | — | 0 |
| AS22872US | HAPPEWARE-AZ-1 - Happ eWare, LLC. | — | — | 0 |
| AS23063US | SENTINEL-AS - Sentinel Properties-Needham, LLC | — | — | 0 |
| AS23119US | TERRA-US-AS01 - TerraMobile North America | — | — | 0 |
| AS23125US | AS-RQZ - JICHI | — | — | 0 |
| AS23150US | ARAMARKUNIFORM - Vestis Services, LLC | — | — | 0 |
| AS23256US | DAVIDSBRIDAL - David's Bridal | — | — | 0 |
| AS23266US | COMCAST-23266 - Comcast Cable Communications, LLC | — | — | 0 |
| AS23346US | INSITU-ASN2 - Insitu, Inc | — | — | 0 |
| AS23475US | AMFIB - Alyrica Networks Inc. | — | — | 0 |
| AS23537US | CRITIGEN - Synoptek, LLC | — | — | 0 |
| AS23551US | COF-WDC - Capital One Financial Corporation | — | — | 0 |
| AS25677US | AUCTIVA - Auctiva Corporation | — | — | 0 |
| AS25782US | AIRLOGIC - JAB Wireless, INC. | — | — | 0 |
| AS25886US | HPINC - HP Inc. | — | — | 0 |
| AS25901US | CP-MEDIA - Gannett Satellite Information Network, LLC. | — | — | 0 |
| AS26015US | IEX-MARKET-3 - IEX Group, Inc. | — | — | 0 |
| AS26094US | 26094 - TierPoint, LLC | — | — | 0 |
| AS26205US | MIC-MARCO - Summit Broadband | — | — | 0 |
| AS26349US | PZLQS-AS - Shell Information Technology International, Inc. | — | — | 0 |
| AS26392US | AS-26392 - TE Connectivity Corporation | — | — | 0 |
| AS26412US | CHUMASH TELECOMMUNICATIONS - Santa Ynez Band of Chumash Indians | — | — | 0 |
| AS26420US | CAYAN-LLC - Global Payments Inc. | — | — | 0 |
| AS26427US | ENTER-ASN - Enterprise Integration, Inc. | — | — | 0 |
| AS26442US | DNB-US - The Dun & Bradstreet Corporation | — | — | 0 |
| AS26456US | JHASN-26456 - John Hancock Life Insurance Company (U.S.A.) | — | — | 0 |