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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. | 211.2M | 21,171 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,368 |
| TA-OPERATING-01 - TravelCenters of America |
| 512 |
| — |
| 2 |
| AS393505US | CENTRACU - Centra Credit Union | 512 | — | 2 |
| AS396307US | SOUTHERNIMPERIAL - Southern Imperial Inc. | 512 | — | 2 |
| AS401294US | ROOFSOFT - RoofSoft LLC | 512 | — | 2 |
| AS54014US | JURASSICINNOVATIONS - Jurassic Innovations, LLC | 512 | 1K | 6 |
| AS53291US | WSFS-ASN - WSFS Bank | 512 | — | 2 |
| AS19972US | AS19972 - CommScope Technologies LLC. | 512 | — | 2 |
| AS36460US | WATTSCORPORATEASN - Watts Water Technologies, Inc. | 512 | — | 2 |
| AS23372US | FDIX-PUBLIC - Midwest Internet Exchange LLC | 512 | 2 | 4 |
| AS400267US | AS-FWC - FOUR WINDS CASINO AND RESORT | 512 | — | 2 |
| AS21985US | MASCO-CONTRACTOR-SERVICES - Masco Contractor Services | 512 | — | 2 |
| AS21714US | URI-TELECOM - URI Telecom Inc | 512 | — | 2 |
| AS198365US | versa-eu-asn-01 Versa Networks Inc | 512 | — | 2 |
| AS53940US | TMH-14-HQ - Tallahassee Memorial HealthCare Inc. | 512 | — | 2 |
| AS402452US | LX-AER - LX | 512 | 65.5K | 3 |
| AS396846US | FL-WIFI-01 - Florida Wifi, LLC | 512 | — | 2 |
| AS398412US | WEBER-COUNTY-01 - WEBER COUNTY | 512 | — | 1 |
| AS62613US | PERELESS - Pereless Systems | 512 | — | 2 |
| AS394997US | NEXUM-ABQ-ASN - Nexum, Inc. | 512 | — | 1 |
| AS20204US | NOVOLINK-HOUSTON - NovoLink Communications, Inc. - Houston | 512 | — | 2 |
| AS402375US | KIMLEY-HORN - Kimley-Horn | 512 | — | 2 |
| AS400213US | COMANDSOLUTIONS - COMAND Solutions, Inc | 512 | — | 2 |
| AS394074US | POGOZONE-ALLIXO - PogoZone | 512 | — | 2 |
| AS63476US | SMS-ASSIST - SMS Assist, L.L.C. | 512 | — | 2 |
| AS21970US | PCESYSTEMS - PCE Systems | 512 | — | 2 |
| AS401827US | UNITED NATIONS FEDERAL CREDIT UNION - UNFCU | 512 | — | 2 |
| AS400493US | APEXA-AS - APEX Analytix, LLC | 512 | — | 2 |
| AS395393US | MORLEY - Morley Companies Incorporated | 512 | — | 2 |
| AS26549US | MY-PBX-MANAGER - The Flat Planet Phone Company Inc. | 512 | 2 | 4 |
| AS35963US | GREENVILLE-SPARTANBURG-AIRPORT-COMMISSION - Greenville-Spartanburg Airport Commission | 512 | — | 2 |
| AS26379US | AGILENT-WAD - Agilent Technologies, Inc. | 512 | — | 2 |
| AS20005US | SANDHILLS-SA - SANDHILLS PUBLISHING | 512 | — | 1 |
| AS30232US | M3C-AS30232 - M3 Consulting LLC | 512 | 4.1K | 2 |
| AS15351US | VISPERAD-NETWORKS-LLC - VISPERAD NETWORKS, LLC | 512 | — | 2 |
| AS46571US | USNEWS - U.S. News & World Report, L.P. | 512 | — | 2 |
| AS395268US | INSPERITY - Insperity Services, L.P. | 512 | — | 2 |
| AS400990US | SU-ASN-01 - Shepherd University | 512 | — | 2 |
| AS36070US | NCHCORP - NCH Corporation | 512 | — | 1 |
| AS399740US | NEOGOV-DR - NEOGOV | 512 | — | 2 |
| AS395655US | TECH-ELECTRONICS-INC-ASN - Tech Electronics, Inc. | 512 | 512 | 4 |
| AS393300US | TCC-INTERNET1 - The Cato Corporation | 512 | — | 2 |
| AS27162US | USF-FCU - USF FEDERAL CREDIT UNION | 512 | — | 2 |
| AS397775US | RVH-ASN - RIVERVIEW HOSPITAL | 512 | — | 2 |
| AS398555US | CONCOR-2-398555 - Concordia University Nebraska | 512 | — | 2 |
| AS36139US | INTRIGUECOMM - Intrigue Communications LLC | 512 | — | 2 |
| AS63348US | CHEWY-COM - chewy.com LLC | 512 | — | 1 |
| AS397605US | NISD-ASN-01 - Northwest ISD | 512 | — | 2 |