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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,240 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,941 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1K |
| 4.1K |
| 5 |
| AS17206US | MOUNTAIN-AMERICA - Mountain America Credit Union | 1K | — | 4 |
| AS62568US | BIC2ASN1 - Brother International Corporation | 1K | — | 4 |
| AS19061US | ASN-CCILINK - CCiLink LLC | 1K | — | 1 |
| AS2567US | SLB-WESTERNGECO-AS - Schlumberger Limited | 1K | — | 4 |
| AS400064US | QUESTAVOLTA - Questa Volta | 1K | — | 3 |
| AS26936US | USI - USI INSURANCE SERVICES | 1K | — | 2 |
| AS36326US | EDGENODE - Techwebhosting Internet Solutions LLC | 1K | — | 3 |
| AS30166US | EX3IN - Ex3 | 1K | — | 1 |
| AS398492US | MPM-ASN - Momentive Performance Materials Inc. | 1K | — | 3 |
| AS40203US | GROWMARK - GROWMARK, Inc. | 1K | — | 1 |
| AS395402US | NAR-19 - National Association of Realtors | 1K | — | 3 |
| AS398436US | HYPEBEASTSERVERS - hypebeastservers | 1K | — | 4 |
| AS11222US | PRL - Ralph Lauren Corporation | 1K | — | 4 |
| AS398159US | RICEBELT-1 - RICE BELT TELEPHONE CO., INC. | 1K | — | 1 |
| AS401276US | UNITEDCLOUD - United Cloud Inc | 1K | — | 4 |
| AS40036US | WAL-91-40036 - Wisk Aero LLC | 1K | — | 3 |
| AS46488US | BLS-BROADBAND-ASN1 - BLS Broadband | 1K | 256 | 5 |
| AS394241US | CUSD186 - Murphysboro Community Unit School District No. 186 | 1K | — | 4 |
| AS202292US | Dodecagon Dodecagon ST LLC | 1K | 524.3K | 3 |
| AS40417US | INTERACTIONSCORP - Interactions Corporation | 1K | 2 | 6 |
| AS395247US | ACC-AUS - Accruent, LLC | 1K | — | 2 |
| AS23539US | TCF-NETWORK-01 - Tel-Star Communications Of Florida, Inc. | 1K | — | 3 |
| AS400719US | RJN-SERVICES - RJN Services | 1K | 4 | 8 |
| AS46455US | NLI-ISP - WWLTH, Inc | 1K | 65.6K | 7 |
| AS26879US | AURELIA-TELECOM-LLC - Aurelia Telecom Systems LLC | 1K | 48 | 7 |
| AS26948US | OLCC-AS1 - Orange Lake Country Club, Inc | 1K | — | 1 |
| AS32560US | BITXBIT - BIT BY BIT COMPUTER CONSULTANTS, INC. | 1K | — | 4 |
| AS14288US | MPINET - MPInet | 1K | 65.5K | 2 |
| AS399868US | SNAPCOM - Snapcom | 1K | 5 | 9 |
| AS14967US | NORTHMEMORIAL-HEALTHCARE-ASN - North Memorial Health Care | 1K | — | 1 |
| AS400338US | GIGABEAM-INTERNET - Gigabeam Internet | 1K | 65.5K | 3 |
| AS30366US | AS-RHYTHMIC-NY - Rhythmic Technologies, Inc. | 1K | — | 3 |
| AS15238US | GF-AS15238 - Gates Foundation | 1K | — | 4 |
| AS18760US | AS18760 - City of Rancho Cucamonga | 1K | — | 4 |
| AS1614US | ISLLC-AS-01 - IOWA STUDENT LOAN LIQUIDITY CORP. | 1K | — | 4 |
| AS25864US | ZAYO-CLOUD-TOR01 - Latisys-Irvine, LLC | 1K | 2 | 6 |
| AS396268US | VILOGICS-EBENSDC1 - viLogics, Inc. | 1K | — | 1 |
| AS394729US | NPIASN - NeoPollard Interactive LLC | 1K | — | 4 |
| AS26424US | WINTECIND - Wintec Industries, Inc. | 1K | — | 3 |
| AS10790US | WEBEX-CONNECT - Lazard Freres & Co., LLC | 1K | — | 4 |
| AS1605US | ALGT-HQNET - Allegiant Travel Company | 1K | — | 4 |
| AS54282US | JJINTEROP - Johnson & Johnson | 1K | — | 3 |
| AS25971US | MILWAUKEE-PS - Milwaukee Public Schools | 1K | — | 4 |
| AS16861US | REVELEX - Revelex.com | 1K | — | 1 |
| AS53383US | PROMISE-REGIONAL-MEDICAL-CENTER---HUTCHINSON-INC - Hutchinson Regional Medical Center | 1K | — | 1 |
| AS21913US | MAINFREIGHTUS-AS - Mainfreight, Inc. | 1K | — | 4 |