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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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. | 218.1M | 24,630 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,219 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| — |
| 1 |
| AS393272US | PORT-MADISON-ENTERPRISES - Port Madison Enterprises | 256 | — | 1 |
| AS401962US | CUDDLE-PAWS - CuddlePaws | 256 | — | 1 |
| AS397109US | CPASNET1 - Centerview Partners, LLC | 256 | — | 1 |
| AS400131US | QCRH-AS - QCR Holdings, Inc. | 256 | — | 1 |
| AS46168US | CALLTOWER - CallTower, Inc. | 256 | — | 1 |
| AS402117US | WHITE-TIE-PRODUCTIONS - White Tie Productions LLC | 256 | — | 1 |
| AS399205US | MAYSTREET-INET-01 - Maystreet | 256 | — | 1 |
| AS54998US | SJCHS-SAV-GA - St. Josephs/Candler Health System, Inc. | 256 | — | 1 |
| AS16794US | THADDEUS-STEVENS-COLLEGE - Thaddeus Stevens College of Technology | 256 | — | 1 |
| AS21629US | TWR - TWR Tech, LLC | 256 | 3 | 4 |
| AS32984US | RUELALA-INC - Rue La La Inc | 256 | — | 1 |
| AS397276US | FL-NINTHCIRCUIT - Ninth Judicial Circuit Court of Florida | 256 | — | 1 |
| AS397413US | SAISD - San Antonio Independent School District | 256 | — | 1 |
| AS394287US | FOURPOINT - FourPoint Energy, LLC | 256 | — | 1 |
| AS397723US | LAST-MILE-NETWORKS - Last Mile Networks LLC | 256 | 65.5K | 2 |
| AS46150US | SNHU - Southern New Hampshire University | 256 | — | 1 |
| AS401099US | HTC-IS-01 - Horry Telephone Cooperative, Inc. | 256 | — | 1 |
| AS1065US | TANGERINE-LV - Tangerine Global | 256 | — | 1 |
| AS396148US | DADDARIO - D'Addario & Company Inc. | 256 | — | 1 |
| AS46111US | EDINA-REALTY-HOME-SERVICES - Edina Realty, Inc. | 256 | — | 1 |
| AS6129US | XAXIS-AS1 - mPlatform LLC | 256 | — | 1 |
| AS30692US | JACKED - JackedWireless | 256 | — | 1 |
| AS395412US | VS-MEDIA-IPV4 - VS Media Inc. | 256 | — | 1 |
| AS40734US | LOMBARD-ODIER-1798 - 1798 Global Partners (USA), Corp. | 256 | — | 1 |
| AS399369US | KIRKLAND-ELLIS-PA - Kirkland & Ellis LLP | 256 | — | 1 |
| AS53816US | BRENTWOODACADEMY-TN - Brentwood Academy | 256 | — | 1 |
| AS30573US | OLDSECONDBANCORP - Old Second Bancorp | 256 | — | 1 |
| AS18571US | WESTERNRESERVEGROUP - The Western Reserve Mutual Casualty Company | 256 | — | 1 |
| AS22897US | 84LUMB-CORP - 84 LUMBER COMPANY | 256 | — | 1 |
| AS394004US | HURLEY-MEDICAL-ASN - Hurley Medical Center | 256 | — | 1 |
| AS400477US | ALASKA-COURT-SYSTEM - Alaska Court System | 256 | 4.1K | 2 |
| AS276US | OTS-AS-276 - University of Texas System | 256 | — | 1 |
| AS21626US | CLEARSKYNETWORK - clearskynetwork | 256 | — | 1 |
| AS394796US | MIDLOTHIAN-01 - City of Midlothian | 256 | — | 1 |
| AS13718US | SOLUSLP - SOLUS ALTERNATIVE ASSET MANAGEMENT LP | 256 | — | 1 |
| AS47070US | VINEYARDCOLUMBUS - Vineyard Columbus | 256 | — | 1 |
| AS63302US | MFAB - Museum Of Fine Arts Boston | 256 | — | 1 |
| AS14421US | THERAVANCE - Theravance Biopharma US, LLC | 256 | — | 1 |
| AS949US | XTOM - xTom | 256 | 256 | 2 |
| AS53432US | OHRH - Owensboro Health, Inc. | 256 | — | 1 |
| AS400682US | DARKDOT - DarkDot Research, Inc. | 256 | 1 | 2 |
| AS11244US | MIS-NET - Midstream Integrity Services LLC | 256 | — | 1 |
| AS26363US | MEDTRONIC-AS-2 - Medtronic, Incorporated | 256 | — | 1 |
| AS22531US | UDI-SMY-01 - United Distributors, Inc. | 256 | — | 1 |
| AS394132US | CASCADEMICROTECH - Cascade Microtech, Inc. | 256 | — | 1 |
| AS11813US | NATIXIS-NORTH-AMERICA-LLC - Natixis North America LLC | 256 | — | 1 |