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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 | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,245 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,952 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,420 |
| — |
| — |
| 0 |
| AS33471US | ARI-CUSTOMERS - Automotive Rentals, Inc. | — | — | 0 |
| AS33514US | EXCS - Executive Corporate, Inc. | — | — | 0 |
| AS33531US | CARTARET-EQUITIES-PROD - Summit Securities Group LLC | — | — | 0 |
| AS33612US | TUMBLR - Yahoo Holdings Inc. | — | — | 0 |
| AS33624US | DHHS-OIG - U.S. Dept. of Health & Human Services - Office of Inspector General | — | — | 0 |
| AS33649US | SHENTEL - Shenandoah Cable Television LLC | — | — | 0 |
| AS33664US | CMCS - Comcast Cable Communications, LLC | — | — | 0 |
| AS33688US | SUMMITEIS-AS - SummitEIS | — | — | 0 |
| AS33735US | CRANE-DOWNTOWN-BGP - CHARLES L CRANE AGENCY Company | — | — | 0 |
| AS33742US | TELX-SFO - Telx | — | — | 0 |
| AS35845US | MEDIVATION-BGP - Pfizer Inc. | — | — | 0 |
| AS35920US | HOUIX - HOUIX | — | — | 0 |
| AS36066US | BIZLAND-ALC - Newfold Digital, Inc. | — | — | 0 |
| AS36166US | STEPAN-AS - Stepan Company | — | — | 0 |
| AS36211US | AMI-GLENDALE-AS - Applied Minds LLC | — | — | 0 |
| AS36245US | SEV1TECH-1-ASN-1 - Sev1Tech | — | — | 0 |
| AS36285US | AS-SHDC1 - ScanHealth, Inc. | — | — | 0 |
| AS36320US | FREESTYLE-01 - Freestyle Cloud, Inc. | — | — | 0 |
| AS36377US | PATRIOT-MEDIA-NJ - Comcast Cable Communications, LLC | — | — | 0 |
| AS36430US | SERVEPATH-ANYCAST - DataPipe, Inc. | — | — | 0 |
| AS36461US | SPGLOBAL-CAPIQ-ACQUIRED - S&P Global Inc. | — | — | 0 |
| AS36621US | DGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS36622US | IGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS36650US | NEXTCO-AS - Nextera Communications LLC | — | — | 0 |
| AS36680US | NETIFACELLC - Netiface LLC | — | — | 0 |
| AS36684US | ALLO-COMM-AS2 - Allo Communications LLC | — | — | 0 |
| AS36713US | APS - The American Physical Society Incorporated | — | — | 0 |
| AS39994US | NBSVOICE32AOA01 - Fusion, LLC | — | — | 0 |
| AS40078US | FAIRMONTSTATE - Fairmont State University | — | — | 0 |
| AS40130US | KITTELSON-DIGIWEST-PORTLAND - KITTELSON AND ASSOCIATES, INC. | — | — | 0 |
| AS40155US | AS40155 - Fin Topco (US), Inc. | — | — | 0 |
| AS40158US | NCSD-01 - Department of Homeland Security | — | — | 0 |
| AS40223US | LMSD-ORG - Lower Merion School District | — | — | 0 |
| AS40283US | MDRX - Netsmart Technologies | — | — | 0 |
| AS40344US | DFW-COLO-1 - Check Point Software Technologies, Inc. | — | — | 0 |
| AS40562US | CLEARMAIL - CLEARMAIL INC. | — | — | 0 |
| AS40574US | CVLAB-OH-AS-01 - Steege IT Services LLC | — | — | 0 |
| AS40578US | VANGUARDHEALTHSYSTEMS-PHAZ - Vanguard Health Systems | — | — | 0 |
| AS40602US | HUMEDICA - Humedica, Inc. | — | — | 0 |
| AS40671US | BORN-CAPITAL-LLC - Born Capital LLC | — | — | 0 |
| AS40708US | ELAB-ASN - Sabre GLBL Inc. | — | — | 0 |
| AS40778US | ICI-NYC - Incomm | — | — | 0 |
| AS40846US | 3EX HOSTING BOCA RATON LLC - 3EX Hosting Boca Raton LLC | — | — | 0 |
| AS40901US | KCMC-3-ASN - Kensico Capital Management Corporation | — | — | 0 |
| AS40935US | DATACATE-AS3 - Datacate Inc. | — | — | 0 |
| AS46085US | NET32 - Net32, Inc. | — | — | 0 |