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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,160 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| 256 |
| — |
| 1 |
| AS16427US | MIRAEASSETUS-ASN - Mirae Asset Securities (USA) Inc. | 256 | — | 1 |
| AS26359US | CARDINAL-COMMERCE-8100 - Cardinal Commerce Corporation | 256 | — | 1 |
| AS53515US | AMTELCO-204-27-231-AS - AMTELCO | 256 | — | 1 |
| AS33275US | KHS-ASN - Thomas Jefferson University Hospitals, Inc. | 256 | — | 1 |
| AS399979US | AS-493NETWORKING - 49.3 Networking LLC | 256 | — | 1 |
| AS26261US | E2CNET - E Squared C Inc. | 256 | — | 1 |
| AS55152US | IFCJAS-01 - The Fellowship | 256 | — | 1 |
| AS36065US | MEDIA78-LLC - Media78 LLC | 256 | — | 1 |
| AS54104US | INFOO-54104 - InfoObjects Inc. | 256 | — | 1 |
| AS64287US | IPS - IPS-INTEGRATED PROJECT SERVICES, LLC | 256 | — | 1 |
| AS36434US | EPPLP - Enterprise Products Company | 256 | — | 1 |
| AS21792US | FLAGLERHOSPITALINC - Flagler Hospital, Inc | 256 | — | 1 |
| AS19660US | KQED-ORG-02 - KQED Inc. | 256 | — | 1 |
| AS400628US | ACSC1005 - Automobile Club of Southern California | 256 | — | 1 |
| AS395001US | STATEOFMAINE-ASN1 - State of Maine | 256 | — | 1 |
| AS40367US | HRH-GHCH - Harbor Regional Health Community Hospital | 256 | — | 1 |
| AS33677US | 509FIBER - 509fiber | 256 | 4.1K | 2 |
| AS53783US | MEMORIAL-HEALTH-CARE-SYSTEMS - Memorial Health Care Systems | 256 | — | 1 |
| AS400047US | APOG-SRU - Apogee Telecom Inc. | 256 | — | 1 |
| AS395659US | SEAWORLD-PARKS-AND-ENTERTAINMENT - SeaWorld Parks & Entertainment, Inc. | 256 | — | 1 |
| AS197443US | NET-6545 6545 HOLDINGS LLC | 256 | 1 | 2 |
| AS23507US | AVSISP - AV SERVICES LLC | 256 | — | 1 |
| AS54459US | TGS-1 - TGS Management Company, LLC | 256 | — | 1 |
| AS17180US | MFS-TKY - Massachusetts Financial Services | 256 | — | 1 |
| AS395790US | SMECO-ASN - SOUTHERN MARYLAND ELECTRIC COOPERATIVE INC | 256 | — | 1 |
| AS11270US | TSCU-01 - Peak Credit Union | 256 | — | 1 |
| AS20449US | AHS-RANDOLPHHEALTH - Randolph Health | 256 | — | 1 |
| AS396415US | COMCAST-MES - Comcast Cable Communications, LLC | 256 | — | 1 |
| AS401872US | RMC-836 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS402429US | RAFF-TECHNOLOGIES - Raff | 256 | — | 1 |
| AS10517US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS10517 - The Bank of New York Mellon Corporation | 256 | — | 1 |
| AS12101US | PRS-ARIN-ASN - PROGRESS RAIL SERVICES Corporation | 256 | — | 1 |
| AS397817US | STMC - Southern Tennessee Regional Health System Winchester | 256 | — | 1 |
| AS207563US | POSEIDON Poseidon Laboratories LLC | 256 | 2 | 3 |
| AS396537US | UKFCU - University of Kentucky Federal Credit Union | 256 | — | 1 |
| AS18544US | NKTR-AS01 - Nektar Therapeutics | 256 | — | 1 |
| AS400294US | PPI-TREMONT-01 - Precision Planting LLC | 256 | — | 1 |
| AS46301US | PRODEGE-LA - MyPoints.com, Inc. | 256 | — | 1 |
| AS54170US | NETACTUATE - NetActuate, Inc | 256 | — | 1 |
| AS394331US | NSX - NDIT Solutions | 256 | — | 1 |
| AS400729US | AS-BWLOG - Bandwidth Logic, Inc. | 256 | — | 1 |
| AS394349US | VINYLINTERACTIVE - Vinyl Interactive, LLC | 256 | — | 1 |
| AS398344US | HGTECH - Higher Ground Technologies | 256 | — | 1 |
| AS400732US | RIVERNET - RiverNet, LLC | 256 | 4.1K | 2 |
| AS30381US | JIMAMBA - JIMAMBA LLC | 256 | — | 1 |
| AS54450US | MBLOX-US - MBLOX INC. | 256 | — | 1 |