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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 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 | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 512 |
| 20 |
| 7 |
| AS30310US | MUT-AMERNY - Mutual of America Life Insurance Company | 512 | — | 1 |
| AS398547US | KAT-NET-SERVERS - Kat-Net Servers LLC | 512 | — | 2 |
| AS26454US | HENRYSCHEIN - Henry Schein Inc | 512 | — | 2 |
| AS53738US | DDC-JVL - DATA DIMENSIONS CORP | 512 | — | 1 |
| AS46283US | SEARCY-MAIN-CAMPUS - Harding University, Inc. | 512 | — | 2 |
| AS398880US | INVESTCLOUD - InvestCloud, Inc. | 512 | — | 2 |
| AS14679US | CURBASN - Curb Mobility, LLC | 512 | — | 2 |
| AS22155US | MSAPP - MSA Worldwide, LLC | 512 | — | 2 |
| AS27434US | DG-FASTCHANNEL - DG | 512 | — | 2 |
| AS398097US | WINTRUST-FINANCIAL-CORPORATION-EG-IL - Wintrust Financial Corporation | 512 | — | 2 |
| AS32108US | ASN-WSECU - WSECU | 512 | — | 2 |
| AS11931US | NYC-EDC-165 - NYCEDC | 512 | — | 2 |
| AS397555US | TGNA-KWES - TEGNA Inc. | 512 | — | 2 |
| AS395072US | ODBM-3000 - Our Daily Bread Ministries | 512 | — | 2 |
| AS23397US | CME-VEN-AS23397 - Chicago Board of Trade | 512 | — | 2 |
| AS19961US | STARGAS-NET-1 - Star Gas Partners, LP | 512 | — | 2 |
| AS395230US | ABM-IND-DR - ABM Industries | 512 | — | 2 |
| AS25618US | SHINE - SHINESHAN | 512 | 256 | 3 |
| AS402411US | AL-3144-402411-01 - Aeryte | 512 | 256 | 2 |
| AS22179US | LTS-CO01 - Links Technology Solutions, Inc. | 512 | — | 2 |
| AS214696US | UNCOLLAPSE-AS Uncollapse LLC | 512 | 2 | 4 |
| AS62634US | NGP-TELENETWORKS - NGP Telenetworks, Inc. | 512 | — | 1 |
| AS16647US | PERIMETERWATCH - Perimeterwatch Technologies, INC | 512 | — | 2 |
| AS36023US | SIRIUSSATELLITERADIO - SIRIUS SATELLITE RADIO | 512 | — | 1 |
| AS12113US | DAWN-FOOD-PRODUCTS - Dawn Food Products, Inc. | 512 | — | 2 |
| AS36595US | PPI - Payment Processing Inc. | 512 | — | 2 |
| AS26011US | LMCSC - Lexington Medical Center | 512 | — | 2 |
| AS54893US | AUTOLOOP - AutoLoop | 512 | — | 2 |
| AS397302US | NEDERLANDER-WEST-COAST - J. Ned, Inc. | 512 | — | 2 |
| AS16680US | IRONBOW - Iron Bow Technologies, LLC | 512 | — | 2 |
| AS22337US | DTBNET - DVS Solutions | 512 | — | 1 |
| AS23239US | JAVELINA - Irongrove LLC | 512 | 2 | 4 |
| AS35907US | NANTHEALTH - NaviNet Inc. | 512 | — | 2 |
| AS20163US | SUNMED - Sunrise Medical, Inc. | 512 | — | 2 |
| AS395203US | SCHOOLCRAFTDEVELOPMENTAUTHORITY - Schoolcraft Development Authority, Inc | 512 | — | 1 |
| AS36860US | BANCFIRST - BancFirst | 512 | — | 2 |
| AS63346US | ASCENT-LLC - Ascent LLC | 512 | — | 2 |
| AS53902US | FLUXORUS-NETWORKS - Fluxorus Networks | 512 | 256 | 3 |
| AS396388US | WOOFY-AS - Woofy | 512 | 1 | 3 |
| AS30515US | USP - USP | 512 | — | 2 |
| AS393661US | NEVADACOUNTY-CA - County of Nevada | 512 | — | 1 |
| AS49427US | NETRC NETRC LLC | 512 | — | 2 |
| AS53664US | PICOTRADING - Pico Quantitative Trading, LLC | 512 | — | 2 |
| AS393485US | TIFFANYCO - Tiffany and Company | 512 | — | 2 |
| AS400550US | SM-AS - Suburban Marine, Inc. | 512 | 5 | 7 |
| AS53482US | MKMG - CareMount Medical, P.C. | 512 | — | 2 |