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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 | 21,133 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,235 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48.8M | 3,614 |
| 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 | 4,429 |
| 2.3K |
| — |
| 2 |
| AS397006US | MULLCLOUD - Mullcloud LLC | 2.3K | 266.2K | 4 |
| AS394353US | BROOT-AS - B.Root-Server-OPS | 2.3K | 44 | 21 |
| AS402219US | UNION-RIVER-TEL - The Union River Telephone Company | 2.3K | 65.5K | 3 |
| AS400043US | IBRIDGE-01 - IBRIDGE CLOUD TECHNOLOGIES, INC | 2.3K | — | 6 |
| AS25896US | IPC-NETWORK-SERVICES-INC - IPC Network Services Inc. | 2.3K | — | 9 |
| AS63383US | SINGLE-DIGITS - Single Digits, Inc. | 2.3K | — | 9 |
| AS5237US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 2.3K | — | 9 |
| AS32369US | THEJOCKEYCLUB - The Jockey Club | 2.3K | — | 5 |
| AS395922US | GCET-GREENFIELD-MA - GCET | 2.3K | — | 2 |
| AS396431US | T38FAX-ASN-1 - T38Fax Incorporated | 2.3K | 3 | 9 |
| AS401418US | GLOBAL-PEERING-ALLIANCE - Red Team LTD | 2.3K | 3 | 12 |
| AS4954US | CARR - Carroll County Government | 2.3K | — | 6 |
| AS394298US | US-SC-DAL-AS - Airlinq Inc | 2.2K | 2 | 13 |
| AS20080US | AMPATH - Florida International University | 2.1K | 98.3K | 9 |
| AS6336US | TURN-US-ASN - Turn Inc. | 2K | 1 | 4 |
| AS26921US | CYBERSHARKS-NET - CYBERSHARKS.NET | 2K | — | 1 |
| AS11838US | HGTC-ASN - Horry-Georgetown Technical College | 2K | — | 4 |
| AS54836US | TRIN-AS - Trinity Industries, Inc. | 2K | — | 5 |
| AS30038US | ANDRENA - Andrena, Inc. | 2K | — | 8 |
| AS400258US | HBE-INTERNET - Professional Satellite Service, Inc. | 2K | — | 8 |
| AS62622US | HOTWI-62622 - Hotwire Communications | 2K | — | 8 |
| AS40548US | INFINERA-US - Nokia of America Corporation | 2K | — | 5 |
| AS11716US | WON-AS - William O'Neil & Company | 2K | — | 8 |
| AS33751US | BRH - Bartlett Regional Hospital | 2K | — | 1 |
| AS19621US | MID-ASNO - MODESTO IRRIGATION DISTRICT | 2K | — | 5 |
| AS32530US | OPUS-AS1 - Opus Corporation | 2K | — | 5 |
| AS54309US | NEGU - NEGU | 2K | 3 | 11 |
| AS54407US | ARENT-FOX-LLP - ArentFox Schiff LLP | 2K | — | 8 |
| AS16432US | DFS-NAO - Discover Financial Services | 2K | — | 8 |
| AS19609US | MANDA-VEEDIX-NET - M&A Technology, Inc | 2K | — | 2 |
| AS23137US | SATCOM-DIRECT-INC - Satcom Direct Inc. | 2K | — | 2 |
| AS31756US | COLORADOSPRINGS-GOV - City of Colorado Springs | 2K | — | 1 |
| AS398266US | ZIPLINK-SYSTEMS - ZipLink Systems LLC | 2K | 4.1K | 5 |
| AS40667US | OIS-53-ASN - Optiquest Internet Services, Inc. | 2K | — | 1 |
| AS26224US | INCOMM-NET0 - InComm | 2K | — | 5 |
| AS54562US | RISE-VOIP - JAB Wireless, INC. | 2K | — | 8 |
| AS40947US | FWOCE-AS42 - Franklin W. Olin College Of Engineering | 2K | — | 5 |
| AS40387US | UI-ICCN - University of Illinois | 2K | 1 | 2 |
| AS46559US | 3XNET - ZGX US LLC | 2K | 1 | 8 |
| AS53633US | PANTHER - A&A Communications LLC | 2K | — | 6 |
| AS18969US | KLC-AS-1 - Knowledge Learning Corporation | 2K | — | 1 |
| AS18659US | MERCHANT-SOLUTIONS-18659 - Worldpay, LLC | 2K | — | 8 |
| AS40298US | GPDATACENTER - General Pacific, Inc. | 2K | 65.5K | 9 |
| AS18439US | NNVHS - Northern Nevada High Speed LLC | 2K | 131.1K | 9 |
| AS13660US | BCBSND-AS - Blue Cross Blue Shield of North Dakota | 2K | — | 1 |
| AS14869US | USTCONLINE - Union Springs Telephone Company | 2K | — | 1 |