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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| — |
| — |
| 0 |
| AS2977US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2984US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2992US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3006US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3017US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3025US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3030US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3035US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3040US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3041US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3062US | CBIS-NET - Cincinnati Bell Information Systems | — | — | 0 |
| AS3076US | CITI10 - Citigroup Inc. | — | — | 0 |
| AS3122US | MAGIC-INTRNL - General Magic, Inc. | — | — | 0 |
| AS3138US | GSA-DDN - General Services Administration | — | — | 0 |
| AS3148US | WISC-CS - University of Wisconsin Madison | — | — | 0 |
| AS3149US | SOSI-AS - Spectrum Online Systems Inc | — | — | 0 |
| AS3404US | MASSIVE-NETWORKS-3404 - Massive Networks, Inc. | — | — | 0 |
| AS3448US | ATTMO-3-AS - AT&T Enterprises, LLC | — | — | 0 |
| AS3453US | COMMNET - Board of Trustees of Community-Technical College | — | — | 0 |
| AS3473US | DNIC-AS-03473 - United States Department of Defense (DoD) | — | — | 0 |
| AS3538US | DNIC-AS-03538 - United States Department of Defense (DoD) | — | — | 0 |
| AS3541US | DNIC-AS-03541 - United States Department of Defense (DoD) | — | — | 0 |
| AS3568US | WAIS-AS - WAIS, Inc. | — | — | 0 |
| AS3569US | ANDERSEN - Andersen Worldwide S.C. | — | — | 0 |
| AS3594US | RAIN1 - RAIN | — | — | 0 |
| AS3641US | ZITO-NETWORKS - Zito Networks | — | — | 0 |
| AS3702US | ICSI-NET - Internet Connect Services, Inc. | — | — | 0 |
| AS3723US | IXP-GYE - Electronic Press | — | — | 0 |
| AS3770US | FIRSTLIGHT-AS-3770 - FirstLight Fiber, Inc. | — | — | 0 |
| AS3780US | ASN-ADVANTIS2 - Advantis | — | — | 0 |
| AS3817US | FREESIDE-NET - Freeside Communications, Inc. | — | — | 0 |
| AS3880US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3884US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3948US | NTTA-3946 - NTT America, Inc. | — | — | 0 |
| AS3991US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS4008US | UNIVERSAL - Universal Internet, Inc | — | — | 0 |
| AS4035US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4048US | CENTURYLINK-RESERVED-IPADMIN - CenturyLink Communications, LLC | — | — | 0 |
| AS4062US | SIGNALDATA - Signal Data, Inc. | — | — | 0 |
| AS4074US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4088US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4089US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4092US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4147US | DNIC-AS-04147 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS4162US | TIN-1 - Air Force Systems Networking | — | — | 0 |
| AS4172US | WAYNESBURG - Waynesburg University | — | — | 0 |