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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 | 3,139 |
| 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 | 1,244 |
| 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 |
| 228 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 396 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,707 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,953 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,418 |
| — |
| 0 |
| AS6616US | DATASTAR - Datastar, Inc. | — | — | 0 |
| AS6627US | GRAPEVINE - Grapevine Systems, Inc. | — | — | 0 |
| AS6641US | SPORTSLINE - SportsLine USA Inc. | — | — | 0 |
| AS6918US | PENNCOM - Penncom Internet Co. | — | — | 0 |
| AS6926US | SOLLUNA-AS - Solluna | — | — | 0 |
| AS6938US | GREENLAKE-IOC - Greenlake/IOC | — | — | 0 |
| AS6981US | AS11456 - Windstream Communications LLC | — | — | 0 |
| AS6983US | ITCDELTA - Windstream Communications LLC | — | — | 0 |
| AS7006US | CYBERNEX - Cybernex Inc. | — | — | 0 |
| AS7010US | DACSIX-NORTH - DACS-IX | — | — | 0 |
| AS7072US | NN-RS00-RS06 - NAP.NET, LLC | — | — | 0 |
| AS7074US | NN-RS00-RS06 - NAP.NET, LLC | — | — | 0 |
| AS7081US | CARIN-AS-BLOCK - ISI | — | — | 0 |
| AS7107US | 3DO - The 3DO Company | — | — | 0 |
| AS7129US | ANC-AS - American Network Communications, Inc. | — | — | 0 |
| AS7132US | SBIS-AS - AT&T Enterprises, LLC | — | — | 0 |
| AS7135US | KOHALA - Kohala Software | — | — | 0 |
| AS7158US | NETFEED-AS - NetEx Online Services | — | — | 0 |
| AS7160US | NETDYNAMICS - Oracle Corporation | — | — | 0 |
| AS7220US | DIAMONDMM - Diamond Multimedia Systems, Inc | — | — | 0 |
| AS7240US | URAEUS - Uraeus Consulting | — | — | 0 |
| AS7269US | ONESOURCE - OneSource Information Services,Inc | — | — | 0 |
| AS7272US | TCIMET - TCI Telephony Services | — | — | 0 |
| AS7318US | FOCALINK-AS - Focalink | — | — | 0 |
| AS7320US | LANCITY - LANcity Company | — | — | 0 |
| AS7333US | ATH - AMERICAN TECHNOLOGY HOLDINGS, INC. | — | — | 0 |
| AS7335US | LOOP - Loop Phone Organization | — | — | 0 |
| AS7412US | ENS-NET - EZ Network Systems, Inc. | — | — | 0 |
| AS7435US | ATM-CIN - Attachmate Corp. | — | — | 0 |
| AS7739US | AUTOWEB - AutoWeb Interactive | — | — | 0 |
| AS7756US | TWC-7756-NA - Charter Communications Inc | — | — | 0 |
| AS7789US | FISHBONE - Fishbone Communications, Inc | — | — | 0 |
| AS7807US | RURALNET - RuralNet | — | — | 0 |
| AS7852US | PGTEL - California Internet Services | — | — | 0 |
| AS7931US | ACVI - Auburn Cable Vision Inc. | — | — | 0 |
| AS7966US | HARBOR - Harbor Communications | — | — | 0 |
| AS8062US | BELLSOUTH-NET-BLK3 - AT&T Enterprises, LLC | — | — | 0 |
| AS8105US | DAKOTACOM - DakotaPro.biz | — | — | 0 |
| AS8129US | CAIWIRELESS - CAI Wireless Systems, Inc. | — | — | 0 |
| AS8136US | IFSI - Internet Financial Systems Inc. | — | — | 0 |
| AS8390US | TPN-AS GTT Communications Inc. | — | — | 0 |
| AS8861US | TEMP-RELUVA GTT Communications Inc. | — | — | 0 |
| AS9460US | KYNDRYLINC-AS-AP - Kyndryl INC | — | — | 0 |
| AS10241US | OCI - Options & Choices, Inc. | — | — | 0 |
| AS10256US | GS-ASN - Akula Communications Corp. | — | — | 0 |
| AS10291US | LABSHUB-NETWORKING - Amazon.com, Inc. | — | — | 0 |