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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. | 211.2M | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,245 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,952 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,420 |
| — |
| — |
| 0 |
| AS394005US | DEN-AS - Selling Simplified Inc. | — | — | 0 |
| AS394014US | SSASN-01 - Solutionstar Settlement Service LLC | — | — | 0 |
| AS394068US | NAVEX-GLOBAL-INC - NAVEX Global, inc | — | — | 0 |
| AS394190US | CENTURYLINK-LEGACY-QWEST-WIRELESS-BACKUP - CenturyLink Communications, LLC | — | — | 0 |
| AS394207US | RGHQ-ASN-ONE - rateGenius inc. | — | — | 0 |
| AS394266US | LITFIBER - QxC Communications, Inc. | — | — | 0 |
| AS394416US | AVANADE - Avanade Inc | — | — | 0 |
| AS394433US | RHODESCOLLEGE - Rhodes College | — | — | 0 |
| AS394487US | LTDBROADBAND-WATERTOWN - LTD Broadband LLC | — | — | 0 |
| AS394514US | WACT-ASN - Car Toys, Inc. | — | — | 0 |
| AS394585US | MITE-AS - MITE Corporation | — | — | 0 |
| AS394618US | NEXTGEAR-CAPITAL-EXPEDIENT - NextGear Capital, Inc. | — | — | 0 |
| AS394686US | CL-200 - Clearent LLC | — | — | 0 |
| AS394753US | TELCOM-SUPPLY - Highline Services, LLC | — | — | 0 |
| AS394847US | AFS-4 - AMERIPRISE FINANCIAL SERVICES, LLC | — | — | 0 |
| AS394848US | PULSE-2 - Pulse | — | — | 0 |
| AS394906US | PTI-SANDPOINTDC - PROTELLIGENT, INC. | — | — | 0 |
| AS394909US | TALEND-ASN - Talend Inc. | — | — | 0 |
| AS394924US | UNTIYBPO-ABQHQ - Unity BPO, Inc. | — | — | 0 |
| AS395004US | MOTIVACTION-ASN - MotivAction, LLC | — | — | 0 |
| AS395042US | ACTIVECAMPAIGN - ActiveCampaign, Inc. | — | — | 0 |
| AS395058US | FEISYSTEMS - FEi Systems | — | — | 0 |
| AS395106US | BPR-OF-TN-AS - Board of Professional Responsibility of the Supreme Court of Tennessee | — | — | 0 |
| AS395224US | BITLY-AS - Bitly Inc | — | — | 0 |
| AS395264US | TREKNETWORKS - Network Resource Technologies Corp | — | — | 0 |
| AS395294US | RED-VENTURES - Red Ventures, LLC | — | — | 0 |
| AS395469US | FINDLAY-AUTOMOTIVE - Findlay | — | — | 0 |
| AS395496US | MICROSOFT-CORP-AS-BLOCK-MSIT3 - Microsoft Corporation | — | — | 0 |
| AS395520US | PLATFORM9 - Platform9 | — | — | 0 |
| AS395541US | OMH - Taylor Corporation | — | — | 0 |
| AS395547US | WABCTVNET-7LS - WABC-TV/EABC-TV | — | — | 0 |
| AS395601US | ASHP-HQ - AMERICAN SOCIETY OF HEALTH SYSTEM PHARMACISTS | — | — | 0 |
| AS395958US | XEROX-LON - XEROX CORPORATION | — | — | 0 |
| AS395983US | AS-BT-D0 - Bankers Trust | — | — | 0 |
| AS396038US | TEMEG-5640 - Temeg Holdings, Inc. | — | — | 0 |
| AS396050US | HYPERGROUP-IX - Hyper Group Network LLC | — | — | 0 |
| AS396058US | INFRAPOINT - dcBLOX, Inc. | — | — | 0 |
| AS396158US | AS-HOSTCIRCLE - HOSTCIRCLE INC. | — | — | 0 |
| AS396217US | RLC-ASN-01 - Resort Lifestyle Communities, Inc. | — | — | 0 |
| AS396373US | 27595 - Columbia College Chicago | — | — | 0 |
| AS396453US | VENUS-PEAK10 - Venus Fashion, Inc. | — | — | 0 |
| AS396487US | DOUGH-INC-NY5 - dough, Inc. | — | — | 0 |
| AS396561US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396575US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396581US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396593US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |