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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 21,017 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,219 |
| 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 |
| 228 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,585 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,932 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,534 |
| 6.7K |
| — |
| 24 |
| AS29954US | JLL-AM-CHI - Jones Lang LaSalle, Inc. | 6.7K | — | 25 |
| AS33255US | HAMDEN-ASN - Hampden-Sydney College | 6.7K | — | 3 |
| AS14328US | RRD - R.R. Donnelley and Sons, Co. | 6.7K | — | 25 |
| AS393340US | COXAUTO - Cox Enterprises Inc | 6.7K | — | 24 |
| AS396226US | ITXBB - In the Stix Broadband LLC | 6.7K | — | 16 |
| AS398808US | ACS-PUBLIC-01 - Arch Capital Services LLC | 6.7K | 2 | 27 |
| AS29888US | UNUMGROUP-AS - Unum Group | 6.4K | — | 15 |
| AS40784US | HIQDATA - hiQ Data Corporation | 6.4K | — | 3 |
| AS20238US | NEONET-CONCORD - Northeast Ohio Network for Educational Technology | 6.4K | — | 3 |
| AS393964US | HMFB - High Mountain Farm, LLC | 6.4K | — | 16 |
| AS19419US | SONY-PICTURES-ENTERTAINMENT - Sony Pictures Entertainment Inc | 6.4K | — | 11 |
| AS63060US | ALTIUS-IN-AS - ALTIUS Broadband, LLC | 6.4K | — | 5 |
| AS33168US | INLANDIMAGING - INLAND IMAGING L.L.C. | 6.4K | — | 22 |
| AS55134US | SKYNET360-LLC-7863492000 - SKYNET360 LLC | 6.4K | 4.1K | 7 |
| AS32578US | KC-EURON-1 - Euronet Worldwide, Inc. | 6.4K | 4 | 16 |
| AS18975US | STANCOEORG95354 - Stanislaus County Office of Education | 6.4K | — | 3 |
| AS397602US | BOREALIS-BROADBAND - BOREALIS BROADBAND INC. | 6.4K | 65.5K | 7 |
| AS11195US | COHO-ASN - Whiz to Coho, Inc. | 6.4K | 1 | 4 |
| AS62592US | HOPI - HOPI TELECOMMUNICATIONS | 6.4K | — | 10 |
| AS33236US | HREC-AS-01 - Hood River Electric Cooperative | 6.4K | 65.5K | 11 |
| AS13782US | FAFCO - The First American Financial Corporation | 6.4K | — | 23 |
| AS394720US | ALAMO-COLLEGES - Alamo Community College District | 6.4K | — | 18 |
| AS26114US | ANAPLAN - Anaplan, Inc. | 6.4K | — | 19 |
| AS19305US | TNSI-AS-19305 - Transaction Network Services, Inc. | 6.4K | — | 13 |
| AS393467US | NORTHEAST-RURAL-SERVICES-DBA-BOLT-FIBER-OPTIC-SERV - BOLT Fiber Optic Services | 6.4K | — | 6 |
| AS393684US | INFINITYLINK - Infinity Network Services, Inc. | 6.4K | 135.2K | 15 |
| AS19174US | AS19174 - China Unicom (Americas) Operations Ltd | 6.4K | — | 7 |
| AS5655US | DECADE-DOM - Decade Communications, Inc. | 6.4K | — | 24 |
| AS13530US | DANA-HOLDING-CORPORATION - Dana Limited | 6.4K | — | 9 |
| AS19223US | NTEGRATED-SOLUTIONS - Ntegrated Solutions | 6.4K | — | 3 |
| AS63402US | UCDP-ORLCORP - Universal Orlando | 6.4K | — | 22 |
| AS36651US | CATHOLIC-HEALTHCARE-PARTNERS - Catholic HealthCare Partners | 6.4K | — | 10 |
| AS11770US | NET56 - Net 56, Inc. | 6.4K | — | 3 |
| AS33293US | BROADVOICE-LAX - SYNDEO LLC | 6.4K | — | 10 |
| AS17195US | TAYLOR-CORPORATION - Taylor Corporation | 6.4K | — | 10 |
| AS393571US | ALLCOVERED-EAST1-AS - Konica Minolta Business Solutions U.S.A, Inc. | 6.4K | — | 19 |
| AS5672US | PBI-NET-BLK - AT&T Enterprises, LLC | 6.4K | — | 5 |
| AS18885US | M2NGAGE2 - M2ngage Telecommunications II Corp. | 6.4K | — | 8 |
| AS18785US | SANTELCOMMCOOP - Santel Communications Cooperative, Inc. | 6.4K | — | 12 |
| AS54536US | ADAMSSTATE - Adams State University | 6.4K | 1 | 4 |
| AS19684US | OGITAL - Latigo, LLC | 6.4K | 129 | 19 |
| AS399002US | NOVA1NET - Nova Cablevision, Inc. | 6.4K | — | 15 |
| AS397183US | FLEX-K-L - Flextronics International USA, Inc. | 6.4K | — | 5 |
| AS54328US | HINTON - The Hinton CATV Company, Inc. | 6.4K | 65.5K | 6 |
| AS40910US | BAYLOR - Baylor Health Care System | 6.4K | — | 3 |
| AS29736US | DWS-ORL - Disney Worldwide Services, Inc. | 6.4K | — | 17 |