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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 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 | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| — |
| — |
| 0 |
| AS3936US | NTTA-3936 - NTT America, Inc. | — | — | 0 |
| AS3468US | DNIC-AS-03468 - United States Department of Defense (DoD) | — | — | 0 |
| AS3907US | CONNECT-1-NET - Connected INC | — | — | 0 |
| AS206193US | LEONARD-NET Jacob Leonard | — | 257 | 2 |
| AS259US | SCUBED-AS - SCUBED | — | — | 0 |
| AS307US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS581US | AMC-MAF-C2-ENCLAVES - Air Force Systems Networking | — | — | 0 |
| AS509US | DNIC-AS-00509 - United States Department of Defense (DoD) | — | — | 0 |
| AS312US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS393US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS689US | MERIT-AS-31 - Merit Network Inc. | — | — | 0 |
| AS5887US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 1 | 1 |
| AS1868US | DISN-PILOTNET14 - RTX BBN Technologies, Inc. | — | — | 0 |
| AS220US | OOALC-HOSTNET-AS - Air Force Systems Networking | — | — | 0 |
| AS110US | XAIT-AS - Xerox Advanced Information Technology | — | — | 0 |
| AS83US | DNIC-AS-00083 - Headquarters, USAISC | — | — | 0 |
| AS54441US | RAVENNACREEK-AS-1 - RAVENNA CREEK, LLC | — | 16 | 1 |
| AS32451US | TX-CLOUD - BigTech | — | — | 0 |
| AS32265US | AS-WAVE-SPARE-1 - Wave Broadband | — | — | 0 |
| AS32137US | FTD-1 - FTD, LLC | — | — | 0 |
| AS30510US | ATOS-PISCATAWAY - Atos IT Solutions and Services Inc | — | — | 0 |
| AS30583US | QUANTUM - Quantum Communications LLC | — | — | 0 |
| AS30420US | YCM - YORK CAPITAL MANAGEMENT (US) ADVISORS, L.P. | — | — | 0 |
| AS399342US | SOPHOS-AS-NA - SOPHOS | — | 256 | 1 |
| AS20415US | COUNCILROCKSD-PA - Council Rock School District | — | — | 0 |
| AS20039US | BAKERJK - Baker College | — | — | 0 |
| AS21776US | BLOSSOMTEL-AS - CHICKASAW TELEPHONE | — | — | 0 |
| AS21657US | FRTCC-LOUISANET - Foothills Rural Telephone Cooperative Corporation, Inc. | — | — | 0 |
| AS20172US | VGRS-AC27 - VeriSign Global Registry Services | — | — | 0 |
| AS20287US | OFINY - Invesco Group Services, Inc. | — | — | 0 |
| AS20153US | ARGUSHEALTH - ARGUS HEALTH SYSTEMS | — | — | 0 |
| AS31806US | TERRIBLE-NETWORK - terrible.network | — | — | 0 |
| AS25572US | ISC-MAD1 Internet Systems Consortium Inc. | — | — | 0 |
| AS19459US | SMSU-12-19459 - Siemens Medical Solutions USA, Inc. | — | — | 0 |
| AS19144US | UPMC-SUSQ - UPMC | — | — | 0 |
| AS19105US | FIRSTBANK - FirstBank | — | — | 0 |
| AS26238US | OPTICALS - OPTICAL SOCIETY OF AMERICA | — | — | 0 |
| AS26509US | AS-CDS-OFFICE-1 - Computer Development Systems, LLC | — | — | 0 |
| AS26033US | VIRTU-26033 - Virtu Financial Operating LLC | — | — | 0 |
| AS395326US | MIT-V6 - Massachusetts Institute of Technology | — | 1 | 1 |
| AS22526US | ITC-ASN - ITC Holdings Corp | — | — | 0 |
| AS23365US | IFBYPHONE - Invoca, Inc. | — | — | 0 |
| AS22956US | AST - American Stock Transfer & Trust Co. | — | — | 0 |
| AS22914US | BIGRIVER2 - Big River Telephone Company, LLC | — | — | 0 |
| AS22144US | CHAPMAN - Chapman and Cutler | — | — | 0 |
| AS215313US | LINEAR-NETWORK Emily Ingalls | — | 17 | 2 |