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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 | 3,139 |
| 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 | 1,244 |
| 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 |
| 228 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 396 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,707 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,953 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,418 |
| 256 |
| 1 |
| 2 |
| AS10551US | RAPID-CITY-REGIONAL - Monument Health Rapid City Hospital, Inc. | 256 | — | 1 |
| AS11048US | DIGITALSTAKEOUT - DigitalStakeout | 256 | 1 | 2 |
| AS899US | INTRTEL - Intrepid Telecom, Inc. | 256 | 256 | 2 |
| AS54567US | CORPORATE-ROLANDDGA - Roland DGA Corporation | 256 | — | 1 |
| AS46716US | CROOK-COUNTY-OREGON - Crook County Oregon | 256 | — | 1 |
| AS398563US | MIBROADBAND - MiBroadband, LLC | 256 | — | 1 |
| AS209827US | INFOSECVPN-AS Del Andujar | 256 | — | 1 |
| AS396229US | EQUUS - Equus Capital Partners, Ltd. | 256 | — | 1 |
| AS395440US | SCH-ASN-REQUEST - St. Clair Memorial Hospital | 256 | — | 1 |
| AS393326US | EPICGA-DC3-AS - Epic Games Inc. | 256 | — | 1 |
| AS32455US | NEXTFLEX-ASN - NextFlex | 256 | — | 1 |
| AS400945US | CSB-ASN - Countryside Broadband LLC | 256 | — | 1 |
| AS22124US | FINNEGANBGP - Finnegan, Henderson, Farabow, Garrett &Dunner, LLP | 256 | — | 1 |
| AS14934US | AGS-LLC-AGO - AGS | 256 | — | 1 |
| AS400772US | CWCU-AS - Commonwealth Credit Union | 256 | — | 1 |
| AS396381US | GENESISHCS - Genesis Healthcare System | 256 | — | 1 |
| AS401802US | KANTIME-01 - KanTime | 256 | — | 1 |
| AS399721US | AS-MS-78065 - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | 256 | — | 1 |
| AS399703US | NYS-BRIDGE-AUTHORITY - New York State Bridge Authority | 256 | — | 1 |
| AS3730US | AQUINA-001 - Aquinas College | 256 | — | 1 |
| AS395642US | MOZILLA-TOR1 - Mozilla Corporation | 256 | 1 | 2 |
| AS400972US | DHL-062 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS40434US | UCIS-AS - Center for Innovation | 256 | — | 1 |
| AS54261US | PHCCNET - Pasco-Hernando State College | 256 | — | 1 |
| AS393671US | WABHM - Warren Averett, LLC | 256 | — | 1 |
| AS23303US | ABTECH-CARLSBAD - Abtech Technologies, Inc. | 256 | — | 1 |
| AS397089US | USORD - EXPEDIA, INC | 256 | — | 1 |
| AS54436US | HSD-WA-401 - Highline School District | 256 | — | 1 |
| AS402320US | WELCHCO-DC1 - Welch | 256 | — | 1 |
| AS15172US | REINHARDT-WAL-1 - Reinhardt University | 256 | — | 1 |
| AS31964US | CG-AS - The Imagine Group, LLC | 256 | — | 1 |
| AS62716US | TELECOM-ENTRENAMIENTOS-TELECOM-ISP-SOLUTIONS - Telecom Trainings LLC | 256 | 256 | 2 |
| AS14612US | VNC-MAIN-LIST - Velios Networks Corp. | 256 | — | 1 |
| AS396488US | PHYSICIANSMUTUAL-ASN-1 - Physicians Mutual Insurance Company | 256 | — | 1 |
| AS14636US | INTERNAP-BLK4 - Internap Holding LLC | 256 | 65.5K | 4 |
| AS14023US | WILD - Minnesota Wild | 256 | — | 1 |
| AS393811US | VDMS-US1 - Visual Data Media Services | 256 | — | 1 |
| AS396175US | PSC - PEGASUS SOLUTIONS COMPANIES | 256 | — | 1 |
| AS400278US | TFC-ASN-01 - TITLE FINANCIAL CORPORATION | 256 | — | 1 |
| AS401588US | INNOWAVE - InnoWave Solution LLC | 256 | 256 | 2 |
| AS20427US | AAAE - American Association of Airport Executives | 256 | — | 1 |
| AS23166US | NORVAX - Norvax, LLC | 256 | — | 1 |
| AS63282US | YVFWC - Yakima Valley Farm Workers Clinic | 256 | — | 1 |
| AS36177US | EASTWESTBANK - EWB | 256 | — | 1 |
| AS401698US | NJCL-AS - NORTH JERSEY COMMUNICATIONS LLC | 256 | — | 1 |
| AS55047US | NWF-ARIN - NATIONAL WILDLIFE FEDERATION | 256 | — | 1 |