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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 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 | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 768 |
| — |
| 3 |
| AS54838US | NWINC-01 - Networks Inc | 768 | — | 3 |
| AS14475US | D4-NETW - D4 Networks L.L.C. | 768 | 3 | 6 |
| AS402472US | POPCORN - Popcorn | 768 | — | 3 |
| AS11775US | CLOUGIX-11775 - Semina Tempus, LLC | 768 | — | 3 |
| AS401731US | ROLL-TIDE - The University of Alabama Athletics | 768 | 1 | 4 |
| AS11739US | CHIRISA-TECHNOLOGY-PARKS-01 - Digital Fortress, Inc. | 768 | — | 3 |
| AS31824US | HF-MANAGEMENT-SERVICES-LLC - HF Management Services, LLC | 768 | — | 3 |
| AS394344US | NETACTUATE - NetActuate, Inc | 768 | 4.1K | 4 |
| AS399450US | ADVANCIAL-ASN01 - ADVANCIAL FEDERAL CREDIT UNION | 704 | — | 4 |
| AS396155US | COA - City of Arlington | 640 | — | 3 |
| AS23459US | APPLEBEE-NETWORKS - applebee | 640 | 3 | 6 |
| AS53719US | MAINSTREAM-TECHNOLOGIES-LRDC - Mainstream Technologies, Inc. | 640 | — | 3 |
| AS25895US | HART-AS1 - HART | 576 | — | 4 |
| AS18718US | MARVELL - Marvell Semiconductor Inc. | 576 | — | 4 |
| AS395351US | AG-1 - Advisor Group, Inc. | 544 | — | 3 |
| AS11317US | GPN - Great Plains Network | 544 | 64 | 3 |
| AS14252US | SCHOOLSPECIALTY - School Specialty, Inc. | 544 | — | 3 |
| AS26812US | ROTARY-INTERNATIONAL - Rotary International | 528 | — | 3 |
| AS396049US | EDNETICS - Ednetics, Inc. | 513 | 4.1K | 10 |
| AS29794US | CR-DATL-01 - CohnReznick LLP | 512 | — | 2 |
| AS18784US | MCD-US-ASN - McDonald's Corporation | 512 | — | 2 |
| AS468US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 512 | — | 1 |
| AS46878US | DRW-HOLDINGS - DRW Holdings, LLC | 512 | — | 2 |
| AS401237US | CVR-ENERGY - CVR Services, LLC | 512 | — | 1 |
| AS53752US | USDIGITAL - US Digital | 512 | — | 2 |
| AS18689US | GWYNN-GROUP-INC - Gwynn Group Inc. | 512 | — | 2 |
| AS393642US | PRYORCASHMAN-NY - PRYOR CASHMAN LLP | 512 | — | 2 |
| AS18629US | LTF-001 - Life Time, Inc | 512 | — | 2 |
| AS400731US | VTS-SERVICES - VTS Services Inc | 512 | 1 | 3 |
| AS1355US | ABELSONTAYLOR - AbelsonTaylor, Inc. | 512 | — | 2 |
| AS46577US | HALNET-FMT2 - Halibut Electronics, Inc | 512 | 2 | 4 |
| AS63369US | TANNER-MEDICAL-CENTER - Tanner Medical Center, Inc. | 512 | — | 2 |
| AS8012US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS8012 - The Bank of New York Mellon Corporation | 512 | — | 2 |
| AS31786US | ZOOMINGWORK-LLC - PloxHost | 512 | 2 | 4 |
| AS395244US | LITHIA - Lithia Motors, Inc. | 512 | — | 2 |
| AS32980US | NEUSTAR-AS5 - NeuStar, Inc. | 512 | — | 2 |
| AS16783US | INVITE-US - INVITE Networks Incorporated | 512 | — | 1 |
| AS398367US | QUIC-CLOUD - Lite Speed Technologies Inc. | 512 | — | 2 |
| AS11933US | ILS-VB-ATT-AS - Supply Technologies LLC | 512 | — | 2 |
| AS62884US | HKLAW - Holland & Knight LLP | 512 | — | 2 |
| AS26302US | SOBOBA - Soboba Casino | 512 | — | 2 |
| AS36320US | FREESTYLE-01 - Freestyle Cloud, Inc. | 512 | 256 | 2 |
| AS401166US | JABIL-AS-US-PH - Jabil | 512 | — | 1 |
| AS27013US | GOLDBERG-LINDSAY - Goldberg Lindsay | 512 | — | 2 |
| AS32697US | NMFN - NM Fiber Network, LLC | 512 | 65.5K | 3 |
| AS394479US | EMA-RAD - eMoney Advisor | 512 | — | 2 |