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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| — |
| — |
| 0 |
| AS398466US | BUILTFAST - SiteTailors, LLC | — | — | 0 |
| AS396742US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396670US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396394US | CATLIN8825 - The Catlin Gabel School | — | — | 0 |
| AS397769US | AZ-EUS2 - RailComm, LLC | — | — | 0 |
| AS397739US | AVIXA-ASN-01 - AVIXA, Inc | — | — | 0 |
| AS43308US | Michael-Kehoe Michael Kehoe | — | — | 0 |
| AS397469US | SPECTEROPS-AS-01 - SpecterOps | — | — | 0 |
| AS397403US | CFSB-TOP-01 - Capitol Federal Savings Bank | — | — | 0 |
| AS399258US | ABRIGO-ASN - Abrigo, Inc. | — | — | 0 |
| AS400864US | TNX-DFW1 - Telnetrix, LLC | — | — | 0 |
| AS398869US | ALLIANCE COMMUNICATIONS - Alliance Communications | — | — | 0 |
| AS398859US | KIWI-IPTV - KIWISAT | — | — | 0 |
| AS398672US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398708US | OFFICERING - OFFICERING LLC | — | — | 0 |
| AS46092US | RAI - RESOURCE AMERICA | — | — | 0 |
| AS397902US | CIEN-ASN-01 - Ciena Corporation | — | — | 0 |
| AS215327US | Altare Altare AI LLC | — | — | 0 |
| AS398935US | AS-NEWVM-1 - NewVM Internet Services LLC | — | — | 0 |
| AS40131US | KITTELSON-DIGIWEST-TUCSON - KITTELSON AND ASSOCIATES, INC. | — | — | 0 |
| AS40116US | AS-NYSDI - New York State Department of Financial Services | — | — | 0 |
| AS46797US | AS-KDL - Windstream Communications LLC | — | — | 0 |
| AS46837US | SUNGARDAS-46837 - BroadbandONE, LLC | — | — | 0 |
| AS46507US | DELL-KACE-AS - Dell, Inc. | — | — | 0 |
| AS46486US | BUFFINI - Buffini & Company | — | — | 0 |
| AS46311US | HDNETLLC-ASN01 - AXStv - HDNet - HDNet Movies | — | — | 0 |
| AS399467US | SUMOFIBER-STGEORGE - Sumofiber | — | — | 0 |
| AS394716US | HEBISD - HEBISD | — | — | 0 |
| AS394674US | KAMINOT - Kaminot LLC | — | — | 0 |
| AS394341US | AGI - ANALYTICAL GRAPHICS INC. | — | — | 0 |
| AS394461US | BRYAN-EQUIPMENT-SALES - Bryan Equipment Sales, Inc. | — | — | 0 |
| AS394639US | GOOGLE - Google LLC | — | — | 0 |
| AS400750US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS400253US | NOA-REMOTE - Nintendo Of America inc. | — | — | 0 |
| AS396579US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS399532US | ULAYER-AS - Universal Layer LLC | — | — | 0 |
| AS208812US | ONDRYA Ondrya LLC | — | 1 | 1 |
| AS401589US | PROD - Neal, Gerber & Eisenberg LLP | — | — | 0 |
| AS400081US | HINET - PC Technologies, Inc. | — | — | 0 |
| AS401411US | HCC - Haywood Community College | — | — | 0 |
| AS400802US | SQUIRREL-NET-01 - Squirrel Logic LLC | — | — | 0 |
| AS401096US | AS - EchoSphere Tech LLC | — | — | 0 |
| AS401465US | TICKETNETWORK-HQ - TicketNetwork Inc. | — | — | 0 |
| AS398329US | AS-CHIL - CHI-NOG | — | — | 0 |
| AS398278US | ITI-FW-DC - ITI | — | — | 0 |
| AS397673US | AHELIOTECH - AHELIOTECH | — | — | 0 |