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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 |
| AS401845US | VOCAL - VocalMatter LLC | — | — | 0 |
| AS401906US | ASN-PDTI - PDTI | — | — | 0 |
| AS401954US | YGT-DC-01 - YANKEE GLOBAL TECHNOLOGY LLC | — | — | 0 |
| AS402114US | CYPRUSCU - CYPRUS CREDIT UNION INC. | — | — | 0 |
| AS402170US | VALORNODE-STL - Valor Holdings LLC | — | — | 0 |
| AS402177US | JAMES - James Hofmeister LLC | — | — | 0 |
| AS402198US | ROOT-CHAIN-VENTURES - Root Chain Ventures L.L.C. | — | — | 0 |
| AS402222US | QLIFE NETWORK - Northern Wasco County People's Utility District | — | — | 0 |
| AS402258US | AVADIAN-CU - Avadian Credit Union | — | — | 0 |
| AS402283US | SYNOPTIC - Synoptic Technologies Inc | — | — | 0 |
| AS402330US | TOGETHER-PHX - Together | — | — | 0 |
| AS402332US | IQVIA-DURHAM - IQVIA Holdings Inc | — | — | 0 |
| AS402372US | RIO-BLANCO-COUNTY - Rio | — | — | 0 |
| AS402388US | GEI-CCS - John | — | — | 0 |
| AS402391US | NOVA - NovaPulse | — | — | 0 |
| AS402416US | RCS-DR-CO-LO-BGP - Resurgent | — | — | 0 |
| AS402424US | TELAMON-CORP - Telamon | — | — | 0 |
| AS402476US | IP-TRANSIT-MANAGEMENT - PIT | — | — | 0 |
| AS402521US | BELDEN-01 - BELDEN | — | — | 0 |
| AS402529US | 42NET - 42NET | — | — | 0 |
| AS402581US | MAKERZERO - Makerzero | — | — | 0 |
| AS95US | DNIC-AS-00095 - United States Department of Defense (DoD) | — | — | 0 |
| AS99US | INTEL-IWARP - Intel Corporation | — | — | 0 |
| AS123US | LOGAIRCOMNET-AS - Air Force Systems Networking | — | — | 0 |
| AS133US | AFIT-AS - Air Force Systems Networking | — | — | 0 |
| AS148US | DNIC-AS-00148 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS219US | DNIC-AS-00219 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS233US | MERIT-AS-10 - Merit Network Inc. | — | — | 0 |
| AS245US | PRC-AS - Planning Research Corporation | — | — | 0 |
| AS247US | ROMENET-AS - Rome Air Development Center | — | — | 0 |
| AS263US | NTTA-263 - NTT America, Inc. | — | — | 0 |
| AS269US | INCSYS-AS - Incremental Systems Corporation | — | — | 0 |
| AS305US | DNIC-AS-00305 - Headquarters, USAISC | — | — | 0 |
| AS404US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS411US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS414US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS435US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS449US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS483US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS555US | VTSII - Velocity Technology Solutions, Inc | — | — | 0 |
| AS605US | VHS-CHIL - Vanguard Health Management, Inc. | — | — | 0 |
| AS623US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS674US | AINET-AS674 - American Information Network | — | — | 0 |
| AS744US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS746US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS750US | MERIT-AS-16 - Merit Network Inc. | — | — | 0 |