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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 |
| VRSN-AC50-340 - VeriSign Global Registry Services |
| — |
| — |
| 0 |
| AS396678US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396681US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396694US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396716US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396752US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396764US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396767US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396789US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396796US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396817US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396825US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396857US | WPC-V1 - The Northern Trust Company | — | — | 0 |
| AS397064US | BAYFIELD-WIRELESS - Bayfield Wireless | — | — | 0 |
| AS397083US | CEL-NET1-V4 - Chicopee Electric Light | — | — | 0 |
| AS397117US | MEDIUM-01 - A Medium Corporation | — | — | 0 |
| AS397216US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397235US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397237US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397240US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397257US | CLOUD9-VOIPNETWORKS-01 - VoIP Networks | — | — | 0 |
| AS397265US | DIGITALWORX - Digital Worx, Inc | — | — | 0 |
| AS397267US | MURATA-MEHQ - Murata Electronics North America, Inc. | — | — | 0 |
| AS397525US | ALPHAONE-AS - Alpha1Servers, LLC | — | — | 0 |
| AS397541US | FINRA-CAT - FINRA | — | — | 0 |
| AS397564US | CVWD - Cucamonga Valley Water District | — | — | 0 |
| AS397615US | RTVI - RTVI | — | — | 0 |
| AS397699US | TPCASN - TPC GROUP LLC | — | — | 0 |
| AS397758US | DATAROBOT-01 - DataRobot, Inc. | — | — | 0 |
| AS397785US | TISTLASN01 - Tortoise Capital Advisors, L.L.C. | — | — | 0 |
| AS397798US | MSGTEL - MSG Tel, Inc. | — | — | 0 |
| AS397852US | PRIVATELINE-SWITCH-01 - Private Line, LLC | — | — | 0 |
| AS397907US | 865 - AEG | — | — | 0 |
| AS397950US | TRIN-01 - WiseTech Global | — | — | 0 |
| AS398046US | ZIMMERBIOMET-INET - Zimmer Biomet Holdings Inc | — | — | 0 |
| AS398253US | KYOYA-HNLWS-MEZZANINE-01 - Sheraton Waikiki Beach Resort | — | — | 0 |
| AS398315US | AS-SSS - Selective Service System | — | — | 0 |
| AS398353US | USCIS-ASN-01 - USCIS | — | — | 0 |
| AS398507US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398510US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398514US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398515US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398526US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398534US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398591US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398595US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398605US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |