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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,189 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| — |
| — |
| 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 |
| AS4192US | STORTEK-INT - Oracle Corporation | — | — | 0 |
| AS4223US | CONNIX - Caravela Software, Inc. | — | — | 0 |
| AS4247US | CAPCON-AS - CAPCON Library Network | — | — | 0 |
| AS4256US | INTERGATE-GW - Intergate, Inc. | — | — | 0 |
| AS4273US | JSC-NET-ASN - Dod Joint Spectrum Center | — | — | 0 |
| AS4309US | FRMCO - FMR LLC | — | — | 0 |
| AS4313US | XOXO-AS4313 - Verizon Business | — | — | 0 |
| AS4344US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4386US | SOO-ASN - State of Oregon | — | — | 0 |
| AS4403US | DSI-CUST-BLK2 - Houston Associates, Inc. | — | — | 0 |