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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| 512 |
| — |
| 2 |
| AS53794US | SDSHERIFF - SDSO | 512 | — | 2 |
| AS400267US | AS-FWC - FOUR WINDS CASINO AND RESORT | 512 | — | 2 |
| AS395238US | BRAZOSPORTISD-01 - Brazosport Independent School District | 512 | — | 2 |
| AS393991US | ONCU-D - ONE NEVADA CREDIT UNION | 512 | — | 2 |
| AS401827US | UNITED NATIONS FEDERAL CREDIT UNION - UNFCU | 512 | — | 2 |
| AS11883US | TGNA-KTHV - TEGNA Inc. | 512 | — | 2 |
| AS395518US | A2D-ECBI - A2D, Inc | 512 | 1 | 3 |
| AS17209US | NORTHWEST-EVALUATION-ASSOCIATION - HMH | 512 | — | 2 |
| AS8188US | BLOOMBERG - Bloomberg Financial Markets Limited Partnership | 512 | — | 2 |
| AS27162US | USF-FCU - USF FEDERAL CREDIT UNION | 512 | — | 2 |
| AS26769US | NC-1197-26769 - NetO Corp | 512 | — | 2 |
| AS44570US | XTL-18-44570 - Xodo Technology, LLC. | 512 | 210.9K | 10 |
| AS12201US | SCC-LAKELAND - Saddle Creek Corporation | 512 | — | 2 |
| AS16542US | MGIC - Mortgage Gauranty Insurance Corp | 512 | — | 2 |
| AS400127US | AILIC-01 - MassMutual Ascend Life Insurance Company | 512 | — | 1 |
| AS22154US | NUTECH - Nu Tech Software Solutions, Inc. | 512 | — | 1 |
| AS40146US | RTCONN-LAS - Right Connection, Inc. | 512 | 3 | 5 |
| AS17129US | POGOZONE-FN - PogoZone | 512 | — | 2 |
| AS54023US | ASIC-ONT - APPLIED SYSTEMS, INC | 512 | — | 2 |
| AS11865US | EPE-ASN-BGP-1 - El Paso Electric | 512 | — | 2 |
| AS393985US | AS-FFN - Freedom Financial Network, LLC. | 512 | — | 1 |
| AS394777US | SMBMI - San Manuel Band of Mission Indians | 512 | — | 2 |
| AS26507US | CTSINET - Computer Transition Services, Inc. | 512 | — | 2 |
| AS6491US | TELEKACHINA - TeleKachina | 512 | 1 | 3 |
| AS397450US | COF94533 - City of Fairfield | 512 | — | 1 |
| AS54747US | UTASC - UMPQUA BANK | 512 | — | 2 |
| AS54982US | RATE - Guaranteed Rate Inc | 512 | — | 2 |
| AS394866US | CORNERSTONE-HOME-LENDING-INC - Cornerstone Home Lending, Inc. | 512 | — | 2 |
| AS7423US | PUTNAMFT - Putnam Fiduciary Trust | 512 | — | 2 |
| AS33587US | BRECKINRIDGE-AS - Breckinridge Capital Advisors | 512 | — | 2 |
| AS11198US | SE-AMS-BOS-01 - Schneider Electric IT Corporation | 512 | — | 1 |
| AS398891US | QUAD9-AS-2 - Quad9 | 512 | 2 | 4 |
| AS40000US | NOBLIS-AUTONOMOUS-SYSTEM - Noblis, Inc. | 512 | — | 2 |
| AS33173US | MYGN-US - Myriad Genetics Incorporated | 512 | — | 2 |
| AS46467US | DISH-NETWORK-LLC - DISH Network L.L.C. | 512 | — | 1 |
| AS394074US | POGOZONE-ALLIXO - PogoZone | 512 | — | 2 |
| AS214505US | NUCLEARFALLOUT-FRA Nuclearfallout Enterprises, Inc. | 512 | 4.1K | 3 |
| AS55062US | GSC-MINNEAPOLISMN - Gannett Supply Corp. - Minneapolis, MN | 512 | — | 2 |
| AS397775US | RVH-ASN - RIVERVIEW HOSPITAL | 512 | — | 2 |
| AS54794US | CGHMC-STERLING - CGH Medical Center | 512 | — | 2 |
| AS397054US | ELUVIO - Eluvio, Inc | 512 | 1 | 3 |
| AS32926US | MSLC - Massachusetts State Lottery Commission | 512 | — | 2 |
| AS36761US | KSBW-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS19195US | ASN-MEGLOBAL-OC-01 - MEGLOBAL AMERICAS INC. | 512 | — | 2 |
| AS398150US | OSV - ONESOURCE VIRTUAL Inc. | 512 | — | 2 |
| AS399460US | HELIUS - Helius | 512 | — | 2 |