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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 |
| 16 |
| 2 |
| AS402336US | CHICFINDS - CHICFINDS | 256 | 1 | 2 |
| AS33644US | OSUFCUASN - Oregon State Credit Union | 256 | — | 1 |
| AS40721US | PABMC - Pennsylvania House of Representatives BMC | 256 | — | 1 |
| AS393392US | PNWUPRIMARYPUBLIC - Pacific Northwest University of Health Sciences | 256 | — | 1 |
| AS32140US | JEWELRY-TELEVISION - Jewelry Television | 256 | — | 1 |
| AS27439US | MULTIPLEX-NET - MultiPlex Networks LLC | 256 | 4.1K | 2 |
| AS32343US | STAGINGLAB - BOK Financial Corporation | 256 | — | 1 |
| AS395804US | GRH - Grande Ronde Hospital, Inc. | 256 | — | 1 |
| AS14887US | WAV-IA - Waverly Health Center | 256 | — | 1 |
| AS5062US | APPLI-39-5062 - Applied Microsystems, Inc. | 256 | — | 1 |
| AS31813US | FREEDOMLINX-TECHNOLOGIES - FreedomLinx Technologies | 256 | — | 1 |
| AS399201US | CMPS-AS - Compass Christian Church | 256 | 2 | 3 |
| AS405US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 256 | — | 1 |
| AS46669US | AMERICAN-PACIFIC-MORTGAGE - American Pacific Mortgage Corp. | 256 | — | 1 |
| AS25974US | D11 - EXPEDIA, INC | 256 | — | 1 |
| AS15134US | PWCSA - Prince William County Service Authority | 256 | — | 1 |
| AS401523US | AUCTIONHARMONY - Auction Harmony | 256 | 1 | 2 |
| AS56521US | KANDYKSF Skyvera LLC | 256 | — | 1 |
| AS20210US | VITRUVIAN-HEALTH-01 - Vitruvian Health | 256 | — | 1 |
| AS394110US | BNFP - Jaguar Land Rover Manhattan | 256 | 1 | 2 |
| AS398841US | AVERITT-IP-BLOCK - Averitt Express, INC | 256 | — | 1 |
| AS395637US | RFKRACING - Roush Fenway Keselowski Racing, LLC | 256 | — | 1 |
| AS396188US | UMOJO - Umojo, Inc. | 256 | — | 1 |
| AS47059US | YORKHOSPITAL - York Hospital | 256 | — | 1 |
| AS32146US | COB-MT - City of Bozeman | 256 | — | 1 |
| AS17218US | LC-647 - Linfield University | 256 | 1 | 2 |
| AS54348US | CAROMONT-HEALTH - CaroMont Health Inc. | 256 | — | 1 |
| AS393860US | AVISYSTEMS - AVI SYSTEMS INC | 256 | — | 1 |
| AS394175US | 3NG-NET1-MIA - RingLogix LLC | 256 | — | 1 |
| AS62580US | PILOT-CORP - Pilot Fiber, Inc. | 256 | — | 1 |
| AS402568US | AVERSON-IT - Averson | 256 | 256 | 2 |
| AS4940US | IAP-WORLDWIDE-SERVICES - IAP World Service Inc | 256 | — | 1 |
| AS401675US | EAI-ASN - Empire AI | 256 | 256 | 2 |
| AS400020US | GRANTEP-ASN - Grant Supplies | 256 | — | 1 |
| AS33304US | RACETRAC - RaceTrac Petroleum, Inc. | 256 | — | 1 |
| AS22437US | CORESITE-SPARE - CoreSite | 256 | 1 | 2 |
| AS63184US | MORRISTOWN-HQ - Valley National Bank | 256 | — | 1 |
| AS53288US | STERICYCLE - STERICYCLE, INC. | 256 | — | 1 |
| AS62815US | LAER-AS-CAM1 - UnitedLayer, LLC | 256 | 1 | 2 |
| AS400151US | SPARC-BROOKS-BROTHERS - BB OPCO LLC | 256 | — | 1 |
| AS393425US | CALACADEMY-NET - California Academy of Sciences | 256 | — | 1 |
| AS213007US | Puget-Sound-Networks-Lab Puget Sound Networks, LLC | 256 | 1 | 2 |
| AS17367US | 382-COM-NY - 382 Communications Corporation | 256 | — | 1 |
| AS399972US | COMMUNITY-BANK-OF-MS - Community Bank | 256 | — | 1 |
| AS25918US | LMHS - Lima Memorial Hospital | 256 | — | 1 |
| AS394044US | TERRITORIAL - Bank of Hope | 256 | — | 1 |