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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.3M | 21,277 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,722 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,955 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,298 |
| — |
| — |
| 0 |
| AS23256US | DAVIDSBRIDAL - David's Bridal | — | — | 0 |
| AS23266US | COMCAST-23266 - Comcast Cable Communications, LLC | — | — | 0 |
| AS23346US | INSITU-ASN2 - Insitu, Inc | — | — | 0 |
| AS23475US | AMFIB - Alyrica Networks Inc. | — | — | 0 |
| AS23537US | CRITIGEN - Synoptek, LLC | — | — | 0 |
| AS23551US | COF-WDC - Capital One Financial Corporation | — | — | 0 |
| AS25677US | AUCTIVA - Auctiva Corporation | — | — | 0 |
| AS25782US | AIRLOGIC - JAB Wireless, INC. | — | — | 0 |
| AS25886US | HPINC - HP Inc. | — | — | 0 |
| AS25901US | CP-MEDIA - Gannett Satellite Information Network, LLC. | — | — | 0 |
| AS26015US | IEX-MARKET-3 - IEX Group, Inc. | — | — | 0 |
| AS26094US | 26094 - TierPoint, LLC | — | — | 0 |
| AS26205US | MIC-MARCO - Summit Broadband | — | — | 0 |
| AS26332US | DRAPERANDKRAMER - Draper and Kramer, Incorporated | — | — | 0 |
| AS26349US | PZLQS-AS - Shell Information Technology International, Inc. | — | — | 0 |
| AS26392US | AS-26392 - TE Connectivity Corporation | — | — | 0 |
| AS26412US | CHUMASH TELECOMMUNICATIONS - Santa Ynez Band of Chumash Indians | — | — | 0 |
| AS26420US | CAYAN-LLC - Global Payments Inc. | — | — | 0 |
| AS26427US | ENTER-ASN - Enterprise Integration, Inc. | — | — | 0 |
| AS26442US | DNB-US - The Dun & Bradstreet Corporation | — | — | 0 |
| AS26456US | JHASN-26456 - John Hancock Life Insurance Company (U.S.A.) | — | — | 0 |
| AS26469US | ALLEGHENYINTEL-SCR - Breezeline | — | — | 0 |
| AS26506US | LLNW-SPS - Limelight Networks, Inc. | — | — | 0 |
| AS26562US | ONCORE-US - Oncore Cloud Services | — | — | 0 |
| AS26665US | ZBUSA - zbusa LLC | — | — | 0 |
| AS26713US | BPS-NOG - The School Board of Brevard County | — | — | 0 |
| AS26715US | CAES SYSTEMS LLC - CAES Systems LLC | — | — | 0 |
| AS26789US | USERSONLNET - Fiserv Solutions, LLC | — | — | 0 |
| AS26828US | BLUEB-26-26828 - BlueberryLabs | — | — | 0 |
| AS26853US | ATHENA-BROADBAND - United Telephone Company | — | — | 0 |
| AS26905US | LIFEC - LifeCare Inc. | — | — | 0 |
| AS27033US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27049US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27102US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27121US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27222US | AUTONATION-ASP2 - Autonation, Inc | — | — | 0 |
| AS27287US | SECANTNET - Aunalytics, Inc | — | — | 0 |
| AS27315US | EQUINIX-CX-HO - Equinix, Inc. | — | — | 0 |
| AS27350US | EDPROPASN - EDISON PROPERTIES, LLC | — | — | 0 |
| AS27397US | CABLERACER - Beaver Valley Cable Co. Inc. | — | — | 0 |
| AS27443US | LIFEGRID-INTERNET - LifeGrid Internet | — | — | 0 |
| AS27449US | IPN-TELECOM - IPN Telecom, LLC | — | — | 0 |
| AS27460US | LANXESS-USA - LANXESS Corporation | — | — | 0 |
| AS27497US | CENTURYLINK-RESERVED-IPADMIN - CenturyLink Communications, LLC | — | — | 0 |
| AS27534US | AS27534 - Mutual of Omaha Insurance Company | — | — | 0 |
| AS29728US | COTTAGE-HEALTH - Cottage Health | — | — | 0 |