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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. | 211.1M | 21,110 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,246 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,954 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,419 |
| — |
| — |
| 0 |
| AS396394US | CATLIN8825 - The Catlin Gabel School | — | — | 0 |
| AS396401US | CENTRE-WISP - Centre WISP Venture Company | — | — | 0 |
| AS396430US | OXEEGEN - Oxeegen | — | — | 0 |
| AS396577US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396589US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396612US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396621US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396626US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396628US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396640US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396651US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396652US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396664US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396666US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396670US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396692US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396699US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396713US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396718US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396732US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396742US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396768US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396773US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396775US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396790US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396795US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396808US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396832US | XLTECH - XL Technologies LLC | — | — | 0 |
| AS396869US | NEBAT - National Exchange Bank and Trust | — | — | 0 |
| AS396901US | ABIOM-1 - Abiomed Inc. | — | — | 0 |
| AS397015US | CARVANA - Carvana | — | — | 0 |
| AS397035US | CITY-OF-LA-CROSSE - City of La Crosse | — | — | 0 |
| AS397046US | CRYSTALBN - Crystal Broadband Networks, INC. | — | — | 0 |
| AS397113US | INGRESS-AUDIO-01 - Ingress Audio, LLC | — | — | 0 |
| AS397205US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397242US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397350US | IVCCD-1 - Iowa Valley Community College District | — | — | 0 |
| AS397456US | MCNY-198-185-5 - Metropolitan College of New York | — | — | 0 |
| AS397528US | LEVELATS - LeveLATS | — | — | 0 |
| AS397583US | RACINE-COUNTY-1 - Racine County | — | — | 0 |
| AS397739US | AVIXA-ASN-01 - AVIXA, Inc | — | — | 0 |
| AS397769US | AZ-EUS2 - RailComm, LLC | — | — | 0 |
| AS397820US | NGPVAN-001 - NGP VAN, Inc. | — | — | 0 |
| AS397838US | GEICO-CNDA - GEICO | — | — | 0 |
| AS397951US | NMHU - New Mexico Highlands University | — | — | 0 |
| AS398012US | NISLABTESTCUSTOMER - Comporium, Inc | — | — | 0 |