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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 | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 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 | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| CIRCLE-B - Circle B Wireless |
| 1.5K |
| 256 |
| 6 |
| AS25676US | FEDEX-FREIGHT - FedEx Freight, Inc. | 1.5K | — | 6 |
| AS500US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 1.5K | — | 6 |
| AS398998US | MAVERIX - Maverix LLC | 1.5K | 8.2K | 8 |
| AS62630US | AS62630 - Husson University | 1.5K | — | 2 |
| AS18816US | ANDREWCORP-AOP - CommScope Technologies LLC | 1.5K | — | 6 |
| AS20251US | SOLARWINDSAUSTIN - SolarWinds North America, Inc. | 1.5K | 5 | 11 |
| AS55270US | QIPMIA1 - Quik, LLC | 1.5K | 4.1K | 6 |
| AS36695US | REGION-5-EDUCATION-SERVICE-CENTER - Region 5 Education Service Center | 1.5K | 65.5K | 7 |
| AS18995US | CLACKAMAS-ASN - Clackamas County | 1.5K | 256 | 3 |
| AS18742US | ON24-SAC - ON24, Inc. | 1.5K | — | 3 |
| AS402267US | HADOOPSKY - Hadoopsky LLC | 1.5K | — | 6 |
| AS401427US | SLMD-US-01 - Solidigm | 1.5K | — | 5 |
| AS53254US | USSCO-AS - Essendant Co. | 1.5K | — | 4 |
| AS27307US | NABORS - Nabors Corporate Services, Inc. | 1.5K | — | 6 |
| AS35876US | VOLTNET-01 -03 - VoltNet inc | 1.5K | — | 6 |
| AS33723US | LENNAR - Lennar Corporation | 1.5K | — | 3 |
| AS46121US | FTMS-01 - Florida Technology Managed Services, Inc. | 1.5K | — | 6 |
| AS13621US | REINSURANCE - Reinsurance Group of America, Incorporated | 1.5K | — | 6 |
| AS31845US | ISI COMMUNICATIONS - ISI Communications | 1.5K | 65.5K | 3 |
| AS393582US | KHP-DLA-ASN-01 - VIDEO DIRECT SATELLITE & ENTERTAINMENT | 1.5K | 65.5K | 7 |
| AS400132US | RTU-ASN - Reinbeck Telecommunications Utility | 1.5K | — | 4 |
| AS32062US | ARMSTRONGWORLD-01 - Armstrong World Industries, Inc. | 1.5K | — | 6 |
| AS32622US | TWRS-PW - Towerstream I, Inc. | 1.5K | — | 2 |
| AS36242US | BEEKS-AS-2 - Network Foundations LLC | 1.5K | — | 6 |
| AS26950US | LIPPERT-AS1 - Lippert Components Manufacturing, Inc. | 1.5K | — | 2 |
| AS395821US | PENNWISP - Penn Wisp, LLC | 1.5K | — | 2 |
| AS23023US | INTUITIVE - Intuitive Surgical, Inc. | 1.5K | — | 6 |
| AS399888US | WIRECAT-LLC - WireCat LLC | 1.5K | 261 | 12 |
| AS50069US | MISAKA-ANYCAST Misaka Network, Inc. | 1.5K | 10 | 16 |
| AS399254US | Z3N-LYCO - Lyons Communications | 1.5K | 4.1K | 4 |
| AS207847US | CloudBlast CloudBlast LLC | 1.5K | 18 | 9 |
| AS12239US | BLOOMINGTON-SD87 - Bloomington Public School District No. 87 | 1.5K | — | 2 |
| AS394109US | CFH - CFH CABLE INC | 1.5K | 589.8K | 8 |
| AS19867US | VOODOO1 - Voodoo.com, Inc | 1.5K | — | 6 |
| AS23371US | CAEUS-AS - CAE USA, Inc | 1.5K | — | 6 |
| AS6231US | SCANA - Dominion Virginia Power | 1.5K | — | 6 |
| AS12186US | GVVME - GVVME | 1.5K | 65.6K | 8 |
| AS18447US | AFFINITY-INTER - Ntirety, Inc. | 1.5K | — | 6 |
| AS46734US | GSENA1 - GDF Suez Energy North America, INC | 1.5K | — | 2 |
| AS18733US | ZENIMAXMEDIA - ZeniMax Media Incorporated | 1.5K | — | 6 |
| AS13624US | SNC-SPARKS - Sierra Nevada Corporation | 1.5K | — | 4 |
| AS54725US | MCKINSEY-US-AAP - McKinsey & Company, Inc. | 1.5K | — | 6 |
| AS393564US | WSU-SPO-AS - Washington State University | 1.5K | — | 3 |
| AS396970US | COMMANDLINK - CommandLink, LLC | 1.5K | 4.1K | 8 |
| AS398453US | INCOMM-NET3 - InComm | 1.5K | — | 3 |
| AS13945US | PRISMTECHNOLOGIESABQ - PRISM Technologies | 1.5K | — | 6 |