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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 | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 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 | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| — |
| — |
| 0 |
| AS399414US | LSLBC - Louisiana State Licensing Board for Contractors | — | — | 0 |
| AS399526US | OPAL-NETWORKS - Opal Networks LLC | — | — | 0 |
| AS399600US | SKYMESH-NET - Skymesh, Inc | — | — | 0 |
| AS399616US | THOMSON-REUTERS - Thomson Reuters U.S. LLC | — | — | 0 |
| AS399621US | ATCDC4-NASN-01 - WORLD WIDE TECHNOLOGY, LLC | — | — | 0 |
| AS399650US | INTELLIWEATHER - Innovative Tech Works, IT Works | — | — | 0 |
| AS399671US | COLORADOCOLO - Colorado Colo | — | — | 0 |
| AS399732US | INVMETRICS - Investment Metrics, LLC. | — | — | 0 |
| AS399733US | ESFN-IPBLOCK - JCFiber | — | — | 0 |
| AS399736US | AIT-01 - Attentive IT, Inc. | — | — | 0 |
| AS399744US | COA-INC-ASN-142-202-47-00 - Coaster Co. of America | — | — | 0 |
| AS399746US | CBI-199 - Careismatic Brands, LLC | — | — | 0 |
| AS399752US | KNIGHTFALL-SYSTEMS - Knightfall systems | — | — | 0 |
| AS399787US | ALEFORGE - MoonQube, | — | — | 0 |
| AS399806US | RECOVERY-POINT-SYSTEMS - Recovery Point Systems Inc. | — | — | 0 |
| AS399878US | GIGTELECOM-1 - GIG SYSTEMS CORPORATION | — | — | 0 |
| AS399931US | LUZERNE-911-ASN - Luzerne County | — | — | 0 |
| AS399956US | SYSTEM-IMPROVEMENTS-TAPROOT - TapRooT | — | — | 0 |
| AS399960US | LSPD-01 - Lightspeed Services LLC | — | — | 0 |
| AS400087US | 3DS-ANC01 - 3ds Communications LLC | — | — | 0 |
| AS400098US | DELEGATED-RPKI-TESTING - Amazon Technologies Inc. | — | — | 0 |
| AS400197US | CLOUD-CONNECT-02 - ConocoPhillips Company | — | — | 0 |
| AS400207US | KB4-MIS-01 - Knowbe4, Inc | — | — | 0 |
| AS400222US | SERVICEPRO-SOLUTIONS-01 - ServicePro Solutions, LLC | — | — | 0 |
| AS400250US | HACC-MAIN - Housing Authority of Cook County | — | — | 0 |
| AS400277US | WINSONIC-EXCHANGE - WinSonic Digital Cable Systems Network, Ltd. | — | — | 0 |
| AS400616US | GREENCLOUD - 365 Group LLC | — | — | 0 |
| AS400844US | PEA-EXETER-AS1 - Phillips Exeter Academy | — | — | 0 |
| AS400868US | TELEHOUSE-32 - TELEHOUSE International Corp. of America | — | — | 0 |
| AS400891US | STEADCLOUD - PeaceWeb | — | — | 0 |
| AS400995US | RICHMOND-CACHING - Richmond-IX Corporation | — | — | 0 |
| AS401032US | HWS-01 - Aconite Systems LLC | — | — | 0 |
| AS401107US | MOBOSOFT-INC - Mobosoft | — | — | 0 |
| AS401160US | W3B - World W3B LLC | — | — | 0 |
| AS401223US | FEC - Federal Election Commission | — | — | 0 |
| AS401250US | FIOPIN - Fiopin | — | — | 0 |
| AS401273US | AUTOINC-DIA - Auto, LLLP | — | — | 0 |
| AS401296US | DSI-AZURE-02 - SARA Plus, LLC | — | — | 0 |
| AS401410US | BROADPATH-DC-ONE - BROADPATH, LLC | — | — | 0 |
| AS401440US | SWWIS - SWWIS LLC | — | — | 0 |
| AS401469US | TACHYON-NET - Tachyon Industries, LLC | — | — | 0 |
| AS401481US | IONER-NET-AS - IONER LLC | — | — | 0 |
| AS401534US | GATEL-AS - GATEL NETWORK SOLUTION LLC | — | — | 0 |
| AS401543US | HANARIN-NETWORK-LLC - Tefexia LC | — | — | 0 |
| AS401550US | PRL-NET01 - Propulsion Resources LLC | — | — | 0 |
| AS401762US | FILTERED NETWORKS - Filtered Networks | — | — | 0 |