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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| WWE-CORP - WWE |
| 512 |
| — |
| 2 |
| AS36471US | KDSS-23-36471 - Kratos Defense & Security Solutions, Inc. | 512 | — | 2 |
| AS62647US | GFFCU - Grow Financial Federal Credit Union | 512 | — | 2 |
| AS12051US | ESCONDIDO-CA - City of Escondido | 512 | — | 2 |
| AS397925US | REDEYE-ATL-DC2 - RedEye Network Solutions LLC | 512 | — | 2 |
| AS402156US | CLOUDLOGICS-1 - CloudLogics LLC | 512 | — | 2 |
| AS53697US | MOHELA - MOHELA | 512 | — | 2 |
| AS201445US | Zerval-Network Zerval Network LLC | 512 | 276 | 8 |
| AS393534US | FHLBM-AS - Federal Home Loan Bank of Des Moines | 512 | — | 2 |
| AS395436US | HUH-ASN-01 - Howard University Hospital | 512 | — | 2 |
| AS53578US | DISNEY-WDAS-AS - Disney Worldwide Services, Inc. | 512 | — | 2 |
| AS393971US | MLKJAMHC - Martin Luther King Jr., Healthcare Corporation | 512 | — | 2 |
| AS394975US | SFHEALTHPLAN - San Francisco Health Plan | 512 | — | 2 |
| AS46623US | FISHBACK - Fishback Financial Corporation | 512 | — | 2 |
| AS53560US | ENDO - Endo Pharmaceuticals Inc | 512 | — | 2 |
| AS12128US | ITS-HYDERABAD - Refinitiv US LLC | 512 | — | 2 |
| AS13498US | TSYS-SDC-THS - Global Payments Inc. | 512 | — | 2 |
| AS397297US | AHL-DFW1-01 - AVENU HOLDINGS, LLC | 512 | — | 2 |
| AS396877US | VINTERCHANGE - Vinterchange, Inc | 512 | — | 2 |
| AS30644US | PATH-NETWORK-BYOIP - Path Network, Inc. | 512 | — | 2 |
| AS401504US | LONG-BEACH-01 - City of Long Beach | 512 | — | 2 |
| AS62918US | ASTM-INTL - American Society for Testing and Materials - ASTM | 512 | — | 2 |
| AS32606US | MARCUS-CORP - The Marcus Corporation | 512 | — | 2 |
| AS394623US | AHA-MH-BGP - American Hospital Association | 512 | — | 2 |
| AS394823US | TFFI - Taylor Fresh Foods, Inc. | 512 | — | 2 |
| AS31752US | HEI-30-31752 - Heartland Express, Inc. of Iowa | 512 | — | 2 |
| AS401468US | WVW - WvW | 512 | 257 | 4 |
| AS36450US | UTSYSADM-AS-1 - University of Texas System Administration | 512 | — | 1 |
| AS26705US | WBNET-01 - Whatabrands LLC | 512 | — | 2 |
| AS63326US | CSQUARED - C Squared Systems, LLC | 512 | 16 | 2 |
| AS23356US | LAFC - Los Angeles Football Club | 512 | — | 2 |
| AS398074US | SN-COLL-DIA - City National Bank | 512 | — | 2 |
| AS47016US | EXTRON-ELECTRONICS - Extron Electronics | 512 | — | 2 |
| AS26824US | VLUZNET-US - VLUZNET | 512 | — | 1 |
| AS396868US | SMBC-CM - SMBC Capital Markets, Inc. | 512 | — | 2 |
| AS18902US | CMC-II-LLC - CMC II, LLC | 512 | — | 2 |
| AS1437US | VISONEX-LLC - Visonex LLC | 512 | — | 2 |
| AS40207US | AS40207 - Cape Cod Healthcare Inc. | 512 | — | 2 |
| AS40267US | PCTI - Passaic County Technical Institute | 512 | 16 | 3 |
| AS14945US | FMC-401NEWING-LOH - FAIRFIELD MEDICAL CENTER | 512 | — | 2 |
| AS394632US | CMC - Catholic Medical Center | 512 | — | 1 |
| AS46766US | ICONIC-AS - Iconic Internet, LLC | 512 | 3 | 5 |
| AS33416US | JMCGH-WTH-1950 - West Tennessee Healthcare | 512 | — | 2 |
| AS13391US | UNOS - United Network for Organ Sharing | 512 | — | 2 |
| AS46879US | NCTCOG-911-ESINET-AS - North Central Texas Council of Governments | 512 | — | 2 |
| AS21569US | DBU-AS - Dallas Baptist University | 512 | — | 2 |
| AS399524US | SOUNDLINE-01 - SoundLine Communications | 512 | — | 2 |