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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,632 |
| 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.
32,210 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 | 4,359 |
| 256 |
| — |
| 1 |
| AS27339US | HRL-LAX-01 - HRL Laboratories, LLC | 256 | — | 1 |
| AS402352US | LM-ADM-001 - Admail.net | 256 | — | 1 |
| AS7362US | HST-CHRON - Hearst Newspapers, LLC | 256 | — | 1 |
| AS19268US | MCHEST-NOC-1 - MChest | 256 | — | 1 |
| AS33023US | ADTRAN-2 - Adtran, Inc. | 256 | — | 1 |
| AS20438US | AS-STOO-HQ - Stoo Networks LLC | 256 | — | 1 |
| AS197137US | YUNHU-NETWORKS-LLC YUNHU NETWORKS LLC | 256 | 4 | 5 |
| AS20420US | DV - Digital Ventures, LLC | 256 | 2 | 3 |
| AS1419US | SELERITY - Selerity Financial, Inc. | 256 | — | 1 |
| AS63341US | ROKI-AMERICA - ROKI America Co., Ltd. | 256 | — | 1 |
| AS26369US | OTWA-AS - Otwa Cloud Inc. | 256 | — | 1 |
| AS11959US | T-CENTER - AEG | 256 | — | 1 |
| AS54796US | ATU-AM - Enerpac Tool Group Corp. | 256 | — | 1 |
| AS18967US | GOUCHER COLLEGE - Goucher College | 256 | — | 1 |
| AS393531US | THE-HOCKADAY-SCHOOL - The Hockaday School | 256 | — | 1 |
| AS30495US | MTS-LLC - MTS | 256 | — | 1 |
| AS18821US | IOSOCKET-CLOUD - Iosocket LLC | 256 | — | 1 |
| AS30498US | STRAND - STRAND BOOK STORE, INC. | 256 | — | 1 |
| AS5638US | BREWER-SCIENCE - Brewer Science | 256 | — | 1 |
| AS401971US | CITY-OF-JOHNS-CREEK-GA - City of Johns Creek | 256 | — | 1 |
| AS400283US | ENDLESS-GROUP - Endless Group | 256 | 256 | 2 |
| AS394629US | MWIECOM - MWI Veterinary Supply Co. | 256 | — | 1 |
| AS399819US | LAER-AS-AUS1 - UnitedLayer, LLC | 256 | 1 | 2 |
| AS54349US | FLNG-HOU - Freeport LNG Development, L.P. | 256 | — | 1 |
| AS394022US | LCSD-ASN - Lyon County School District | 256 | — | 1 |
| AS395951US | ZIPDATA - ZIPDATA.NET | 256 | — | 1 |
| AS33675US | SURESCRIPTS - Surescripts, LLC | 256 | — | 1 |
| AS401325US | LOGAN-ALUMINUM - Logan Aluminum Inc. | 256 | — | 1 |
| AS398637US | NMLEGIS - Legislative Council Service | 256 | — | 1 |
| AS54495US | BYTESPUR - Bytespur Corporation | 256 | 1 | 2 |
| AS219118US | MIA-AI MIA AI Holdings Inc | 256 | — | 1 |
| AS397595US | MTAPD-LIC - MTAPD | 256 | 2 | 3 |
| AS401522US | CBCTECH-AMERICAS - CBCCOM AMERICAS INC. | 256 | — | 1 |
| AS394382US | EL-DALLAS - Elevated Computing LLC | 256 | — | 1 |
| AS53382US | MBFCL - MBF Clearing Corp. | 256 | — | 1 |
| AS401915US | GSDRE2ASN - Garfield School District No. RE-2 | 256 | — | 1 |
| AS32657US | TENNESSEE-AQUARIUM - Tennessee Aquarium | 256 | — | 1 |
| AS216102US | XeroGroup_LLC XeroGroup LLC | 256 | — | 1 |
| AS398443US | NWCC - Northwest Mississippi Community College | 256 | — | 1 |
| AS396148US | DADDARIO - D'Addario & Company Inc. | 256 | — | 1 |
| AS395573US | IBTCONNECT - IBT Connect LLC | 256 | 4.1K | 2 |
| AS33699US | RUSSELL-MARKETING-RESEARCH - Russell Marketing Research, Inc. | 256 | — | 1 |
| AS40505US | APXALARM-ASN - Vivint, Inc | 256 | — | 1 |
| AS202934US | MUNTEANU-AS SINCITY HOSTING LLC | 256 | 3 | 4 |
| AS14829US | INFINITRON-TBN - Infinitron Internet LLC | 256 | 16 | 2 |
| AS12081US | GREENHECK - Greenheck Fan | 256 | — | 1 |