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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. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS394756US | CONVO-DAL - Convo | 256 | 1 | 2 |
| AS23476US | CENTRICAZ-ASN - Centric Fiber Arizona | 256 | — | 1 |
| AS20109US | DC09 - DC09, LLC. | 256 | — | 1 |
| AS30098US | INFB-ASN - Farm Bureau Insurance | 256 | — | 1 |
| AS40554US | NUSSTRUCK-1 - Nuss Truck Group Inc. | 256 | — | 1 |
| AS394875US | FASTTECH - Fast Technologies Inc. | 256 | — | 1 |
| AS401785US | DATA -SAFE-SERVICES - Data Safe Services LLC | 256 | — | 1 |
| AS30577US | CITY-OF-BELLEVUE - City of Bellevue IT Dept | 256 | — | 1 |
| AS19802US | LANEPRESS - The Lane Press, Inc. | 256 | — | 1 |
| AS402238US | VTT - Van Oss Telegraph and Telephone LLC | 256 | 256 | 2 |
| AS40039US | ALPHA-N-OMEGA-AOS-40 - ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED | 256 | — | 1 |
| AS21800US | AIT-24PLN-ASN - Advanced Integration Technology, LP | 256 | — | 1 |
| AS35918US | FCE-ASN - Forest City Enterprises, Inc. | 256 | — | 1 |
| AS32923US | SILVERPNT-CT - SILVER POINT CAPITAL, LP | 256 | — | 1 |
| AS36484US | ALIGN-JS-CAPITAL - JS CAPITAL MANAGEMENT LLC | 256 | — | 1 |
| AS401657US | PHMV-AS-1 - DuBois Regional Medical Center | 256 | — | 1 |
| AS26436US | IMS-ASN - Inperium Management Services, Inc. | 256 | — | 1 |
| AS48652US | V6Market Tnex Inc. | 256 | 65.5K | 2 |
| AS40783US | CPC - Combined Public Communications, Inc. | 256 | — | 1 |
| AS29803US | FANATIC NODE LLC - FanaticNode LLC | 256 | — | 1 |
| AS26117US | UNION-POWER-COOPERATIVE - Union Power | 256 | — | 1 |
| AS11695US | THESTREET-DOT-COM - TheStreet.Com | 256 | — | 1 |
| AS15357US | HCL-186-15357 - HARBIN CLINIC, LLC | 256 | — | 1 |
| AS398433US | MANATT - Manatt, Phelps & Phillips | 256 | — | 1 |
| AS396182US | VOIGTINDELECT-A - Voigt Industrial Electronics LLC | 256 | — | 1 |
| AS19728US | HUGHESBROS - Hughes Brothers Inc. | 256 | — | 1 |
| AS22568US | AS-SKYFI - Sky Fi | 256 | — | 1 |
| AS30562US | SCARSDALE-SCHOOLS - Scarsdale Schools District | 256 | — | 1 |
| AS63378US | JJI - J. Josephson, Inc. | 256 | — | 1 |
| AS27028US | SNEDG-LAN-WAN - SNET Diversified Group | 256 | — | 1 |
| AS30416US | WCS - Wildlife Conservation Society | 256 | — | 1 |
| AS26031US | MONMOUTH-COUNTY - Monmouth County | 256 | — | 1 |
| AS46166US | SRSU - Sul Ross State University | 256 | — | 1 |
| AS21672US | CES-HQPA-01 - Customized Energy Solutions, Ltd. | 256 | — | 1 |
| AS30458US | CMHC-LEX-01 - CLARK Material Handling Company | 256 | — | 1 |
| AS397364US | MSF-USA-01 - Doctors without Borders USA, Inc. | 256 | — | 1 |
| AS16840US | JETSET-NETWORKS - JetSet Networks | 256 | 65.5K | 2 |
| AS395342US | EXETERHOSPITAL - Exeter Hospital | 256 | — | 1 |
| AS395786US | NOMADGCS-ASN - Nomad Global Communications Solutions, Inc. | 256 | — | 1 |
| AS396152US | MC-AS - The Monroe Clinic, Inc. | 256 | 1 | 2 |
| AS32551US | KOHLBERG - Kohlberg & Co., L.L.C. | 256 | — | 1 |
| AS396301US | YETI-COOLERS - YETI Coolers, LLC | 256 | — | 1 |
| AS399415US | WPS-AS-01 - Westminster Public Schools | 256 | — | 1 |
| AS402491US | AS-CERTUS - Certus | 256 | 4.1K | 2 |
| AS395286US | BELOITHEALTHSYSTEM - Beloit Health System, Inc. | 256 | — | 1 |
| AS14565US | RRTL-3719 - Red Rock Telecommunications, Inc. | 256 | — | 1 |