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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 | 21,174 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 1,940 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1.5K |
| 1 |
| 7 |
| AS40760US | FWB-ALASKA-2 - TelAlaska | 1.5K | — | 3 |
| AS4869US | CNMCC - Central New Mexico Community College | 1.5K | — | 6 |
| AS400643US | ARROYO-SECO-01 - Arroyo Seco Wireless, LLC | 1.5K | — | 3 |
| AS16692US | HHMI - Howard Hughes Medical Institute | 1.5K | 1 | 4 |
| AS18725US | PVH-INTERNET1 - PVH Corp. | 1.5K | — | 6 |
| AS19023US | TCSL-38-19023 - Terminix | 1.5K | — | 6 |
| AS19687US | PPPS-ILG - Planet Payment Processing Services | 1.5K | — | 6 |
| AS14042US | COMCAST-COMM-MGT-1 - Comcast Cable Communications Management, LLC | 1.5K | — | 3 |
| AS401956US | FMI-AS-1 - Federated Mutual Insurance Company | 1.5K | — | 3 |
| AS395391US | TPNA-AS - Talking Platforms, LLC | 1.5K | — | 6 |
| AS19529US | ROGERS - RFPT COMPANY LLC | 1.5K | 288 | 6 |
| AS40513US | EDGE-TECHNOLOGY-GROUP - Edge Technology Group, LLC | 1.5K | — | 6 |
| AS40358US | TFCU-BLK-1 - Tinker Credit Union, Inc. | 1.5K | — | 4 |
| AS63343US | LINEAR1 - Linear 1 Technologies, LLC | 1.5K | 65.5K | 5 |
| AS30140US | BXP-HQ - BOSTON PROPERTIES LIMITED PARTNERSHIP | 1.5K | — | 5 |
| AS260US | GTT-DXB - GTT Americas, LLC | 1.5K | 131.1K | 7 |
| AS400967US | ASSURED-NETWORKS - Assured Networks | 1.5K | 4.1K | 11 |
| AS10859US | GDIT-CSRA-01 - General Dynamics Information Technology, Inc. | 1.5K | — | 6 |
| AS63033US | SWIFT-NET - S.W.I.F.T. Services LLC | 1.5K | 65.5K | 7 |
| AS46182US | VAROLII - Microsoft Corporation | 1.5K | — | 4 |
| AS40126US | AS-MOLSONCOORS - Molson Coors Beverage Company | 1.5K | — | 3 |
| AS11336US | BLACKROCK-FINANCIAL-MANAGEMENT - BlackRock Financial Management, Inc. | 1.5K | — | 6 |
| AS33350US | APS---ARIZONA-PUBLIC-SERVICE-CORPORATION - Arizona Public Service Company | 1.5K | — | 6 |
| AS46277US | OHIOHEALTH - OhioHealth Corporation | 1.5K | — | 5 |
| AS54316US | AP-FOUNDATION - AP GP Operations, LLC | 1.5K | 4.1K | 6 |
| AS19577US | CASTRO-TELECOM - CASTRO TELECOM LLC | 1.5K | 65.5K | 3 |
| AS19806US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS18484US | VTLA - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS40499US | WG - Washington Gas | 1.5K | — | 6 |
| AS394019US | FIBERSPARK - FiberSpark Inc. | 1.5K | — | 5 |
| AS398464US | BDDY - Buddy Software LLC | 1.5K | — | 3 |
| AS63123US | FAREWAY-NETWORK - Fareway Stores, Inc. | 1.5K | — | 3 |
| AS26550US | PROVIDENT-FUNDING-ASSOC - Provident Funding | 1.5K | — | 6 |
| AS397336US | VIRTUALSPROUT-01 - Virtual Sprout | 1.5K | — | 6 |
| AS208757US | RelInfoAS RelINFO Solutions LLC | 1.5K | — | 2 |
| AS13453US | DSRGLOBAL-COM - DIVERSIFIED SYSTEMS RESOURCES, LTD | 1.5K | — | 3 |
| AS27268US | CHICKASAW - The Chickasaw Nation | 1.5K | — | 6 |
| AS402436US | LV-NETWORKS - BEACON | 1.5K | — | 6 |
| AS26940US | LEVI-STRAUSS-CO - Levi Strauss & Co. | 1.5K | — | 6 |
| AS19825US | LABONE - LabOne, Inc. | 1.5K | — | 3 |
| AS36182US | ATG-36182 - Accretive Networks | 1.5K | — | 3 |
| AS401483US | NAMESPACELABS - Namespace Labs | 1.5K | — | 6 |
| AS57833US | Universal Universal Services of America, LP | 1.5K | — | 3 |
| AS36408US | CDNETWORKSUS-02 - CDNetworks Inc. | 1.5K | — | 6 |
| AS32094US | ERICYHOST - Ericsson Inc. | 1.5K | 3 | 9 |
| AS53373US | MATH-INC - Mathematica, Inc. | 1.5K | — | 6 |