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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS3505US | WINDSTREAM - Windstream Communications LLC | — | — | 0 |
| AS20433US | CENGAGE-MABOS - Cengage Learning, Inc. | — | — | 0 |
| AS3463US | LOGIN-NONAZ - Login, Inc. | — | — | 0 |
| AS397877US | ECBROADBAND - Eastern Carolina Broadband LLC | — | 1 | 1 |
| AS403190US | MC-AS1 - USP | — | — | 0 |
| AS2990US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS307US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS301US | C3PO-AS - Air Force Systems Networking | — | — | 0 |
| AS134US | CORONA-GW-AS - Fleet Analysis Center | — | — | 0 |
| AS220US | OOALC-HOSTNET-AS - Air Force Systems Networking | — | — | 0 |
| AS110US | XAIT-AS - Xerox Advanced Information Technology | — | — | 0 |
| AS26768US | SAKURA - SAKURA LTD. | — | 2 | 2 |
| AS402893US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS403117US | ASLIN-785 - websvm | — | — | 0 |
| AS402989US | BMWOODS-01 - Brandermill | — | — | 0 |
| AS402930US | ATHENS - Technical | — | — | 0 |
| AS400917US | ROSE-CIRCUIT2 - Aubrey Rose | — | 8 | 1 |
| AS32265US | AS-WAVE-SPARE-1 - Wave Broadband | — | — | 0 |
| AS32033US | EXXONMOBIL-UTEC-AS - ExxonMobil Global Services Company | — | — | 0 |
| AS30709US | REVEAL - REVEAL SYSTEMS INC | — | — | 0 |
| AS30340US | AS-TIERP-30340 - TierPoint, LLC | — | — | 0 |
| AS26103US | ACIG - ACIG | — | — | 0 |
| AS30314US | KAN-ED - Kansas Research and Education Network | — | — | 0 |
| AS399011US | C3AERO - C3Aero LLC | — | 1 | 1 |
| AS20155US | OCO-1 - ORANGE COUNTY ONLINE | — | — | 0 |
| AS29962US | DWNI-B-NETWORK - Wave Broadband | — | — | 0 |
| AS20301US | AS20301 - National Aeronautics and Space Administration | — | — | 0 |
| AS20287US | OFINY - Invesco Group Services, Inc. | — | — | 0 |
| AS19897US | IQNT-BROAD-6-19897 - Inteliquent, inc. | — | — | 0 |
| AS20000US | FULCRM-00 - Fulcrum Analytics, Inc | — | — | 0 |
| AS19744US | EDUCATION-DEVELOPMENT-CENTER - Education Development Center Inc. | — | — | 0 |
| AS33006US | LOGICALHOST - Logical Host, LLC | — | — | 0 |
| AS23328US | EST-INC-ASN - EST, Inc. | — | — | 0 |
| AS19019US | AS-TIERP-19019 - TierPoint, LLC | — | — | 0 |
| AS18823US | MEDICALERT - Medicalert Foundation | — | — | 0 |
| AS18741US | SOUNDHOUND1 - SoundHound, Inc. | — | — | 0 |
| AS25665US | EV-CLOUD - Veritas Technologies LLC | — | — | 0 |
| AS25919US | CONST-89-25919 - ConstructConnect Inc. | — | — | 0 |
| AS23519US | NGISCORV - Alyrica Networks Inc. | — | — | 0 |
| AS395468US | UNLV - University of Nevada, Las Vegas | — | 256 | 1 |
| AS22053US | ARENAONE - Arena One, LLC | — | — | 0 |
| AS22914US | BIGRIVER2 - Big River Telephone Company, LLC | — | — | 0 |
| AS22321US | PLUMCHOICE-DC1 - PlumChoice | — | — | 0 |
| AS22201US | PERFORCE-ASN - Perforce Software, Inc. | — | — | 0 |
| AS21657US | FRTCC-LOUISANET - Foothills Rural Telephone Cooperative Corporation, Inc. | — | — | 0 |
| AS63437US | ARBOREAL-STUDIOS-01 - Arboreal Studios Inc. | — | 1 | 1 |