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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. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS16707US | UNIFI-MFG-INC - Unifi, Inc | 256 | — | 1 |
| AS62792US | SSFCU - Suncoast Credit Union | 256 | — | 1 |
| AS40364US | SATCOM-DIRECT-INC - Satcom Direct Inc. | 256 | — | 1 |
| AS398279US | KITCHELL-CORP - KITCHELL CORPORATION | 256 | — | 1 |
| AS396433US | COMMUNITY-MEDICAL-CENTER - Community Medical Center, Inc | 256 | — | 1 |
| AS22825US | RCLS-INTERNET - Ramapo Catskill Library System | 256 | — | 1 |
| AS393622US | PAFFORD-MEDICAL-SERVICES - PAFFORD MEDICAL SERVICES | 256 | — | 1 |
| AS46170US | BASTION-CYBER-US01 - bastioncyber.ai | 256 | 1 | 2 |
| AS18981US | SUPERNET-II - SUPERNet II | 256 | — | 1 |
| AS32680US | CHNCTORG - Community Health Network of Connecticut | 256 | — | 1 |
| AS16385US | CESG-16385 - COWEN EXECUTION SERVICES LLC. | 256 | — | 1 |
| AS3916US | OSIS-PACOM - Joint Intelligence Center Pacific | 256 | — | 1 |
| AS398755US | 12GLOBAL - Iroute Inc. | 256 | — | 1 |
| AS63108US | MMRSAG-10 - Mobile Medical Response Inc | 256 | — | 1 |
| AS54953US | CALIBER-NODE - Caliber Node, LLC | 256 | — | 1 |
| AS54515US | MRMC - Milford Regional Medical Center Inc. | 256 | — | 1 |
| AS395638US | OTTAWACO-ASN1 - County of Ottawa | 256 | — | 1 |
| AS397341US | XL-103-397341 - XGRID LTD, LLC | 256 | — | 1 |
| AS62697US | TOK-NIDR - PIMCO | 256 | — | 1 |
| AS61402US | BIO-RAD-ASN Bio-Rad Laboratories, Inc. | 256 | — | 1 |
| AS54762US | ASHLANDUNIVERSITY - Ashland University | 256 | — | 1 |
| AS55200US | LSSI-AS - LSSI | 256 | — | 1 |
| AS401795US | COXESPORTS - Cox Enterprises Inc | 256 | — | 1 |
| AS402703US | AS-ACG - Atlantic | 256 | — | 1 |
| AS46122US | DBCONTROLS - Digital Business Controls | 256 | — | 1 |
| AS13423US | GALVESTONISD - GALVESTON ISD | 256 | — | 1 |
| AS18993US | AFS147 - Area Financial Services Inc. | 256 | — | 1 |
| AS36634US | GREATRIVERHEALTHSYSTEMS - Great River Health Systems, Inc. | 256 | — | 1 |
| AS54682US | CFCU01 - Citadel Federal Credit Union | 256 | — | 1 |
| AS13622US | SPRISA - Sprisa Inc | 256 | — | 1 |
| AS54250US | SF3050 - NavCom Technology, Inc | 256 | — | 1 |
| AS64239US | KYANAIND-COM - Kyana Packaging & Industrial Supply, Inc | 256 | — | 1 |
| AS40683US | USPI - United Surgical Partners International, Inc. | 256 | — | 1 |
| AS402810US | TDDT-NET - TDDT, | 256 | 1 | 2 |
| AS63206US | INOVA-AS - INOVA Federal Credit Union | 256 | — | 1 |
| AS40087US | NEWORLEANSPUBLICLIBRARY-01 - NEW ORLEANS PARISH LIBRARY | 256 | — | 1 |
| AS18752US | HT-HB18752 - Uniti Fiber Holdings Inc. | 256 | — | 1 |
| AS402396US | CLOUDASYS - Cloudasys | 256 | — | 1 |
| AS397850US | CMHSHEALTH - Community Memorial Health System | 256 | — | 1 |
| AS2886US | AS2886 - Anton Kapela, Sole Proprietorship | 256 | — | 1 |
| AS21780US | GRIFFITH-LABORATORIES - GRIFFITH FOODS INC. | 256 | — | 1 |
| AS399106US | TERIDION2 - Teridion inc | 256 | — | 1 |
| AS394420US | SPOKANE-911 - SREC | 256 | — | 1 |
| AS54828US | SCENTSY01 - SCENTSY | 256 | — | 1 |
| AS400488US | IZONE-BB-01 - iZone Broadband LLC. | 256 | 65.5K | 2 |
| AS22042US | FLOWUSLLC - Flow Traders US LLC | 256 | — | 1 |