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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 512 |
| — |
| 1 |
| AS399867US | FREEDOM-NETWORKS - Freedom Networks LLC | 512 | — | 2 |
| AS40324US | TGNA-KVUE - TEGNA Inc. | 512 | — | 2 |
| AS62996US | OMR-01 - Unwin Company | 512 | — | 1 |
| AS398780US | BEC - Bluebonnet Electric Cooperative, Inc. | 512 | — | 2 |
| AS18679US | I4A-NETWORK - internet4associations | 512 | — | 2 |
| AS394493US | CDK-GLOBAL-HOSTING-FB - CDK Global, LLC | 512 | — | 2 |
| AS22666US | GBHSD - Glenbrook High School District | 512 | — | 1 |
| AS400013US | WAUPACA-FOUNDRY-INC - Waupaca Foundry, Inc. | 512 | 5 | 7 |
| AS27203US | TRIHEALTH-1 - Trihealth | 512 | — | 2 |
| AS32050US | SULLCROM - SULLCROM | 512 | — | 2 |
| AS63047US | KMHA - Konica Minolta Healthcare Americas, Inc. | 512 | — | 2 |
| AS30672US | AS30672 - QMACS | 512 | — | 2 |
| AS397098US | ISLANDCLOUD - Island I.T. Solutions, LLC | 512 | — | 2 |
| AS55261US | DMISTL - DISTRIBUTION MANAGEMENT INC | 512 | — | 2 |
| AS54728US | DATAPLANE - DataPlane.org | 512 | 1 | 3 |
| AS27507US | XTREME-INTERNET - Xtreme Internet | 512 | — | 2 |
| AS40711US | INTERACTIVE-CHIC - Interactive Brokers LLC | 512 | — | 2 |
| AS399566US | BIGCOMMERCE - Bigcommerce Inc. | 512 | — | 2 |
| AS36519US | CISCO-TTNA - CISCO SYSTEMS, INC. | 512 | 1 | 2 |
| AS22615US | MONROECOUNTYCOMMSCH - Monroe County Community School Corporation | 512 | — | 2 |
| AS20269US | VAIL-SCHOOL-DISTRICT-1 - Vail School District | 512 | — | 2 |
| AS10858US | HYPER-BNG-ASN - Hypertherm Inc. | 512 | — | 2 |
| AS22868US | BDPINTERNATIONAL - BDP International | 512 | — | 2 |
| AS13570US | AS13570 - Angelo, Gordon & Co., L.P. | 512 | — | 2 |
| AS394850US | CITY-OF-CAPE-CORAL - City of Cape Coral | 512 | — | 2 |
| AS27480US | MTC-CORP - Management & Training Corporation | 512 | — | 1 |
| AS401493US | SUREPATH-AI - SurePath AI | 512 | — | 2 |
| AS63395US | FLEXTRADE-SYSTEMS-INC - Flextrade Systems, Inc. | 512 | — | 2 |
| AS7455US | MOTO-INT1-AS - Motorists Mutual Insurance Company | 512 | — | 2 |
| AS23526US | HALFMOONINN-GUEST-INTERNET - Humphreys Half Moon Inn & Suites | 512 | — | 1 |
| AS395157US | ITCS-IBONE-IN-TOUCH-COMPUTER-SERVICES-INC - In-Touch Computer Services, Inc | 512 | — | 2 |
| AS46639US | HUGHES-TELEMATICS - Verizon Business | 512 | — | 2 |
| AS22276US | BANKUNITED - BankUnited NA | 512 | — | 2 |
| AS396104US | KARMA-CORP-SVCS - Karma Automotive, LLC | 512 | — | 2 |
| AS54636US | AS-DBIO - Rackspace Hosting | 512 | — | 1 |
| AS397670US | CVCU-ASN - Covantage Credit Union | 512 | — | 1 |
| AS397515US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 512 | 2 | 4 |
| AS402151US | INFINIT-01 - Infinite Portal LLC | 512 | — | 1 |
| AS397956US | NETWORK-DATA-SYSTEMS - Network Data Systems, Inc | 512 | 4.1K | 3 |
| AS12120US | AAO-AIO - Amphenol Corp | 512 | — | 2 |
| AS396098US | DOE-HANFORD - U.S. Department of Energy - Hanford | 512 | 65.5K | 3 |
| AS394722US | NIMBIX-1 - Nimbix, Inc. | 512 | — | 1 |
| AS32038US | ALCORN-LOR-01 - Institutions of Higher Learning | 512 | — | 2 |
| AS36570US | KOCO-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS46177US | WHITE-SKY-HOSTING - White Sky Hosting | 512 | 256 | 3 |
| AS11200US | REGISU - Regis University | 512 | — | 2 |