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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 | 21,253 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,249 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,722 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,964 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,301 |
| — |
| — |
| 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 |
| 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 |
| AS4439US | IMEFDJOSS - Commanding General | — | — | 0 |
| AS4450US | FODOR - Web Net Communications, Inc. | — | — | 0 |
| AS4479US | JTM - JTM Multimedia | — | — | 0 |
| AS4592US | OPENMARKET-NET - Open Market, Inc | — | — | 0 |
| AS4916US | HQINSCOM - US ARMY INSCOM | — | — | 0 |
| AS4918US | THEPOINT-NET - Silver Creek Industries | — | — | 0 |
| AS4960US | PERNET - PERnet Communications, Inc. | — | — | 0 |
| AS4971US | NWPROS - Network Pros, Inc. | — | — | 0 |
| AS4973US | UPS-AS4973 - UNITED PARCEL SERVICE | — | — | 0 |
| AS4979US | AS4979 - GXS | — | — | 0 |
| AS5011US | EMTF-AVI - Air Force Systems Networking | — | — | 0 |
| AS5064US | FSL-299-5064 - Final Span LLC | — | — | 0 |