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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| — |
| 2 |
| AS397932US | NYSA-ASN - New York State Assembly | 512 | — | 2 |
| AS22130US | DAS-BGP-29 - Doctor's Associates LLC | 512 | — | 2 |
| AS393939US | RUFFALO-NOEL-LEVITZ - RUFFALO NOEL LEVITZ LLC | 512 | — | 2 |
| AS6091US | INMAR-INC - Inmar, Inc. | 512 | — | 2 |
| AS47657US | DEVEXPERTS-AS Devexperts Inc | 512 | — | 2 |
| AS22916US | PHS-CA - Providence Health & Services | 512 | — | 2 |
| AS54883US | CORVA - City of Richmond, Virginia | 512 | — | 2 |
| AS11200US | REGISU - Regis University | 512 | — | 2 |
| AS20373US | MARLEYINDEX-US - Marley Index, LLC | 512 | 3 | 5 |
| AS27480US | MTC-CORP - Management & Training Corporation | 512 | — | 1 |
| AS396077US | UDR-US - UDR | 512 | — | 2 |
| AS23112US | FLUIDSTACK-NET - Fluidstack Inc | 512 | 65.6K | 6 |
| AS15202US | GELLER - Geller & Company LLC | 512 | — | 2 |
| AS26158US | USG-TOR-AS - ULTIMATE SOFTWARE GROUP | 512 | — | 2 |
| AS397378US | PHOENIXNAP-BRA - PhoenixNAP LLC | 512 | 257 | 4 |
| AS18798US | INTERNET-SERVICES - Encore Group (USA) LLC | 512 | — | 2 |
| AS15285US | SRLCD - Cash Depot | 512 | — | 2 |
| AS3727US | SHRUBB - Shrubbery Networks | 512 | — | 1 |
| AS395157US | ITCS-IBONE-IN-TOUCH-COMPUTER-SERVICES-INC - In-Touch Computer Services, Inc | 512 | — | 2 |
| AS22633US | FISHERBROTHERS - Fisher Brothers | 512 | — | 2 |
| AS393802US | CARAHSOFT - Carahsoft Technology Corp. | 512 | 1 | 3 |
| AS31800US | DALNET - DALnet | 512 | — | 2 |
| AS20397US | BOXLAKE - Box Lake Networks, Inc. | 512 | — | 2 |
| AS395842US | GLACIER-BROADBAND-MT - Glacier Broadband | 512 | — | 2 |
| AS395279US | MICLOUD-US - Mitel Networks, Inc. | 512 | — | 2 |
| AS27486US | MCF-SOFTWARE - MCF Software, LLC | 512 | — | 1 |
| AS2000US | IA-AS - Internet Awareness, Inc. | 512 | 1 | 3 |
| AS396893US | WWMS - mitelefono.com | 512 | 65.5K | 4 |
| AS19126US | KIZAWIRELESS - KIZA | 512 | — | 2 |
| AS395860US | NETBLK-CLARIOS - Clarios | 512 | — | 2 |
| AS27459US | AXOSBANK-AS - AXOS BANK | 512 | — | 2 |
| AS394913US | AIRGRIDS - AirGrids | 512 | — | 2 |
| AS401746US | FASNET-SERVICES-SDN - FasNET Services LLC | 512 | 320 | 4 |
| AS13478US | BEAGLE - Beagle Networks | 512 | — | 2 |
| AS14076US | AS14076 - Secure Network USA, LLC | 512 | — | 2 |
| AS399462US | SUMOFIBER-TEXAS - Sumofiber | 512 | — | 2 |
| AS36358US | CDM-AS - City of Des Moines | 512 | — | 1 |
| AS207439US | KORVESNET Korves.Net USA LLC | 512 | 524.3K | 3 |
| AS394770US | AXIGENT-TECHNOLOGIES-GROUP - Axigent Technologies Group, Inc. | 512 | 65.5K | 3 |
| AS399358US | ANTHROPIC - Anthropic, PBC | 512 | 2 | 3 |
| AS54853US | MTL-371-54853 - Impact Internet | 512 | 65.5K | 3 |
| AS11894US | SERVICE-CREDIT-UNION-11894 - Service Credit Union | 512 | — | 1 |
| AS33420US | TCDI - Technology Concepts & Design, Inc. | 512 | — | 2 |
| AS394493US | CDK-GLOBAL-HOSTING-FB - CDK Global, LLC | 512 | — | 2 |
| AS398670US | E-NETWORKS - Takk LLC | 512 | — | 2 |
| AS394850US | CITY-OF-CAPE-CORAL - City of Cape Coral | 512 | — | 2 |