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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,749 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,226 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| — |
| — |
| 0 |
| AS401941US | USSS-2-ASN - United States Ski & Snowboard | — | — | 0 |
| AS401972US | CHRONOSPHERE - Chronosphere, Inc. | — | — | 0 |
| AS402014US | ASU-MOUNTAIN-HOME-AS - Arkansas State University | — | — | 0 |
| AS402051US | ETGLLC-01 - Emunah Technologies Group LLC | — | — | 0 |
| AS402196US | AJAX - Ajax Networks, LLC | — | — | 0 |
| AS402227US | AFN-CORP - Arctic Fox Networks Inc | — | — | 0 |
| AS402303US | JIMCHIPMAN - Jim Chipman LLC | — | — | 0 |
| AS402307US | NUBO - Nubo, Inc. | — | — | 0 |
| AS402312US | INFINET - InfiNet, LLC | — | — | 0 |
| AS402354US | WILLIAMS-MULLEN - Williams | — | — | 0 |
| AS402369US | COOL-NETO-03 - NetO | — | — | 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 |
| 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 |
| AS402936US | MIKULA-SYSTEMS - MIKULA | — | — | 0 |
| AS402946US | SPUZE - SPUZE | — | — | 0 |
| AS403007US | ASLIN-770 - hostivm | — | — | 0 |
| AS403026US | TFS-US-EAST-PGH - Fisher | — | — | 0 |
| AS403038US | CENTRAL-ARKANSAS-WATER-ASN - Utility | — | — | 0 |
| AS403043US | SUNYJCC-AS-01 - Jamestown | — | — | 0 |
| AS403052US | LCD - BOARD | — | — | 0 |
| AS403067US | FLAKE-NETWORKS - Flake | — | — | 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 |