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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 |
| 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 |
| AS402424US | TELAMON-CORP - Telamon | — | — | 0 |
| AS402476US | IP-TRANSIT-MANAGEMENT - PIT | — | — | 0 |
| AS402521US | BELDEN-01 - BELDEN | — | — | 0 |
| AS402529US | 42NET - 42NET | — | — | 0 |
| AS402624US | WELO - Welo | — | — | 0 |
| AS402656US | TERAWAVE - Blue | — | — | 0 |
| AS402661US | PASADENALACERA - LACERA | — | — | 0 |
| AS402684US | OTOY - OTOY, | — | — | 0 |
| AS402693US | VAST - Vast | — | — | 0 |
| AS402699US | NEBURST - Neburst | — | — | 0 |
| AS402701US | AS-ALEMBIC-NET - Alembic | — | — | 0 |
| AS402759US | SITESERVING-CORE-ASN - SiteServing | — | — | 0 |
| AS402761US | NEUROGRID - NEUROGRID | — | — | 0 |
| AS402775US | VALPRIATE - Valpriate | — | — | 0 |
| AS402824US | SMGLAB - Smugglerlab | — | — | 0 |
| AS402852US | TERRANETUS - TerraNet | — | — | 0 |
| AS402875US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402985US | IWEBVM - iWebVM | — | — | 0 |
| AS403011US | ASLIN-2355 - Cloudivm | — | — | 0 |
| AS403013US | BILTM-ASN - The | — | — | 0 |
| AS403176US | TOGETHER-TX1 - Together | — | — | 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 |