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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| 2K |
| — |
| 7 |
| AS14267US | PTCAS14267 - PTC INC. | 2K | — | 8 |
| AS32696US | TVD-EDISON-777 - Tri State Voice & Data, LLC | 2K | — | 8 |
| AS14145US | REGIONS-ASN-3 - REGIONS FINANCIAL CORPORATION | 2K | 1 | 3 |
| AS394862US | LT-WR - LT-WR, LLC | 2K | — | 5 |
| AS14803US | ASHEREDC - HERE North America LLC | 2K | — | 1 |
| AS40833US | NYTD-SEA1 - The New York Times Company | 2K | — | 4 |
| AS16750US | ECPI - Electronic Corporate Pages, Inc | 2K | — | 1 |
| AS36111US | BRINKS-INC-INTERNET - Brink's, Incorporated | 2K | — | 5 |
| AS5213US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 2K | — | 1 |
| AS401326US | BOONE-COOPERATIVE-ADVANTAGE - BCA Connect, LLC | 2K | — | 1 |
| AS16818US | SYNTAX-NJ-AZ - Syntax systems Ltd LLC. | 2K | — | 5 |
| AS18819US | ENTERGY-SERVICES-LLC - Entergy Services, LLC | 2K | — | 1 |
| AS197769US | VPSDEDICATED-AS VPS Dedicated LLC | 2K | — | 6 |
| AS14588US | ATVI-BEENOX-CAN - Activision Publishing, Inc. | 2K | — | 5 |
| AS11900US | DATACRUZ - Datacruz, Inc. | 2K | 65.5K | 2 |
| AS14987US | RETHEMHOSTING - Rethem Hosting LLC | 2K | 65.5K | 6 |
| AS398149US | NTS-HARLINGEN-01 - Vexus Fiber | 2K | — | 4 |
| AS27647US | WEEBLY - Weebly, Inc. | 2K | 3 | 11 |
| AS26716US | NETCRACKER - NetCracker Technology, Corporation | 2K | 1 | 9 |
| AS399461US | HOSTSNAP-NETWORK - HostSNAP LLC | 2K | — | 4 |
| AS14408US | AS-EMPIRECLS-SECAUCUS - Empire International, Ltd. | 2K | — | 8 |
| AS393780US | HYPER-ASNET - Hyper Networks LLC | 2K | — | 6 |
| AS14143US | RSINET-1 - Rock Solid Internet & Telephone | 2K | — | 1 |
| AS402718US | TUNSLAB - TUNSLAB | 2K | 2 | 7 |
| AS399455US | IP-ROUTING-01 - IP Routing LLC | 2K | — | 2 |
| AS395516US | TERADATACORP - Teradata Operations, Inc. | 2K | — | 8 |
| AS46956US | EAGLESEVEN - Eagle Seven Technologies, LLC | 2K | — | 5 |
| AS13482US | ZWEIG-DIMENNA - Zweig-DiMenna Associates, LLC. | 2K | — | 1 |
| AS40790US | BCG-NETWORK - BCG Attorney Search | 2K | — | 2 |
| AS395102US | YRMC-ASN - Yuma Regional Medical Center | 2K | — | 4 |
| AS20467US | SW-ORG-AS - Baylor Health Care System | 2K | — | 8 |
| AS394581US | BLUESPAN - Bluespan Wireless, LLC | 2K | 65.5K | 9 |
| AS47030US | SOUTHERNLINC-PACKETDATA-ASN - SouthernLINC Wireless | 2K | — | 8 |
| AS17162US | DONALDSON - Donaldson Company, Inc. | 2K | — | 1 |
| AS33707US | NUSHAGAK-ASN - Nushagak Electric & Telephone Cooperative, Inc. | 2K | 65.5K | 6 |
| AS23248US | PPS - Paducah Power System | 2K | 65.5K | 3 |
| AS13518US | GONETSPEED-WV - GoNetSpeed | 2K | — | 2 |
| AS36812US | MLL-61 - Master Lock Company LLC | 2K | — | 6 |
| AS26207US | WHDOT-LLC - WHDOT LLC | 2K | — | 7 |
| AS54634US | SNAP-INTERNET - Snap Internet LLC | 2K | — | 1 |
| AS36339US | SMART-CITY-SACC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 2K | 16 | 5 |
| AS26764US | RWJF-AS - The Robert Wood Johnson Foundation | 2K | — | 5 |
| AS16642US | WPP-ET-CAMPUS-ZURICH - The Ogilvy Group, LLC | 2K | — | 5 |
| AS19107US | YMAX-AS - Ymax Communications Corp | 2K | — | 8 |
| AS22403US | TRINICOM - TRINICOM COMMUNICATIONS | 2K | — | 4 |
| AS397029US | IA-OCIO - State of Iowa OCIO | 2K | — | 2 |