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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| — |
| — |
| 0 |
| AS2948US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2956US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2958US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2975US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2981US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2982US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3002US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3015US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3036US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3063US | AS3063 - Parsons Corporation | — | — | 0 |
| AS3077US | CITI11 - Citigroup Inc. | — | — | 0 |
| AS3133US | HHS-PSC-ITIO - U.S. Dept. of Health and Human Services | — | — | 0 |
| AS3386US | USNET-AS - US Net Incorporated | — | — | 0 |
| AS3421US | ATTIS-ASN3421 - AT&T Enterprises, LLC | — | — | 0 |
| AS3436US | ESNET-AS - ESnet | — | — | 0 |
| AS3444US | ESNET-AS - ESnet | — | — | 0 |
| AS3457US | ORACLE-4 - Oracle Corporation | — | — | 0 |
| AS3476US | JIEO-ITSI-BB - LOGICON | — | — | 0 |
| AS3492US | ATLANTA - Mese Software / Internet Atlanta | — | — | 0 |
| AS3531US | DNIC-AS-03531 - United States Department of Defense (DoD) | — | — | 0 |
| AS3535US | DNIC-AS-03535 - United States Department of Defense (DoD) | — | — | 0 |
| AS3539US | DNIC-AS-03539 - United States Department of Defense (DoD) | — | — | 0 |
| AS3623US | MCIASN-BLK - Verizon Business | — | — | 0 |
| AS3628US | NYSERNET-BLK - NYSERNet | — | — | 0 |
| AS3686US | BBSSYS-ASN - Innovative Logic Corp | — | — | 0 |
| AS3699US | HYPEENT-LA2 - Hype Enterprises | — | — | 0 |
| AS3772US | CETYS-AS - CETYS - Centro de Ensenanza Tecnica Y Superior | — | — | 0 |
| AS3797US | METASYS-VNET - Metasys, Inc. | — | — | 0 |
| AS3802US | LGHS - Luthern General Health System | — | — | 0 |
| AS3850US | NAGRAUSA - OpenTV Inc | — | — | 0 |
| AS3854US | DNACO-AS - The Dayton Network Access Company | — | — | 0 |
| AS3873US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3901US | ARRAKIS - M & A Properties, LLC | — | — | 0 |
| AS3903US | NAG-AS - Network Ananlysis Group | — | — | 0 |
| AS3942US | NTTA-3936 - NTT America, Inc. | — | — | 0 |
| AS3961US | INDUSTRYNET - Automation News Network | — | — | 0 |
| AS3984US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS3992US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS3997US | ACM-AS - Association of Computing Machines | — | — | 0 |
| AS4004US | COGENT-4000 - Cogent Communications, LLC | — | — | 0 |
| AS4073US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4103US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4114US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4118US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4129US | WIRED-NET - Lycos, Inc. | — | — | 0 |
| AS4192US | STORTEK-INT - Oracle Corporation | — | — | 0 |