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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| 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 | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| — |
| 0 |
| AS402377US | JAVAFOLK - JavaFolk | — | — | 0 |
| AS402441US | UNIQUE-DISCOVERY-INSTITUTE-ID - Discovery | — | — | 0 |
| AS402458US | DATA-FACTORY-US - DATA | — | — | 0 |
| AS402462US | HOSTITY - Hostity | — | — | 0 |
| AS402481US | GANTC-077 - gantC | — | — | 0 |
| AS402493US | HOSTCRAM - HostCram | — | — | 0 |
| AS402524US | KITL-US-AS - KEYLINK | — | — | 0 |
| AS402534US | NEXARIO-1 - Anchor | — | — | 0 |
| AS402580US | LA6721-LLC - LA6721, | — | — | 0 |
| AS402599US | ADCOM911 - ADCOM911 | — | — | 0 |
| AS402603US | SKCANS-01 - Southwestern | — | — | 0 |
| AS402616US | TASHANNET - Tashan | — | — | 0 |
| AS402648US | ORBITFOUR-ASN-1 - OrbitFour | — | — | 0 |
| AS402680US | CERTADNS-NET - CERTADNS | — | — | 0 |
| AS402720US | CCSO-ASN-01 - Charlotte | — | — | 0 |
| AS402751US | SYMDEC - Symdec, | — | — | 0 |
| AS402755US | TSISP-WITHERS-01 - ThinkSpace | — | — | 0 |
| AS402756US | SAS-001 - Square | — | — | 0 |
| AS402783US | LZ-CHARLOTTE - Lubrizol | — | — | 0 |
| AS402844US | LBW-LBWLLC-01 - Lake | — | — | 0 |
| AS402849US | NVOCEL - North | — | — | 0 |
| AS402860US | EVIX - BrinkLink | — | — | 0 |
| AS402903US | RHEC-ASN - Roanoke | — | — | 0 |
| AS402917US | VPSCAT - VPSCAT | — | — | 0 |
| AS402936US | MIKULA-SYSTEMS - MIKULA | — | — | 0 |
| AS402946US | SPUZE - SPUZE | — | — | 0 |
| AS53US | NORTHROP-AS - Northrop Grumman Corporation - Automation Sciences Laboratory | — | — | 0 |
| AS113US | SCCNET-AS - Space Communications Company | — | — | 0 |
| AS151US | HPINC-EMEA - HP Inc. | — | — | 0 |
| AS176US | BCN-AS - Information Systems and Networks Corporation | — | — | 0 |
| AS281US | LVLT-281 - Level 3 Parent, LLC | — | — | 0 |
| AS333US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS373US | MITRE-AS-4 - The MITRE Corporation | — | — | 0 |
| AS389US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS421US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS437US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS446US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS456US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS469US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS473US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS495US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS501US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS523US | DNIC-AS-00523 - Headquarters, USAISC | — | — | 0 |
| AS524US | CIRION-524 - Cirion Technologies Solutions, LLC | — | — | 0 |
| AS537US | DNIC-AS-00537 - Headquarters, USAISC | — | — | 0 |
| AS540US | DNIC-AS-00540 - United States Department of Defense (DoD) | — | — | 0 |