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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| 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 | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS398355US | DATAIDEAS-LLC - Data Ideas llc. | — | — | 0 |
| AS398467US | HZYF-AS - HZYF Inc | — | — | 0 |
| AS398500US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398505US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398528US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS398559US | NSWAT - NetSWAT LLC | — | — | 0 |
| AS398592US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398624US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS398673US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398681US | NXP-BUILD - Willis Towers Watson | — | — | 0 |
| AS398791US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS398876US | RVIT-7TRIBES - Round Valley Indian Tribes | — | — | 0 |
| AS399100US | GMA-GOBOUNDLESS - Selectronics Corp. | — | — | 0 |
| AS399101US | SPECTRA-SOUTH - Spectra Laboratories, Inc | — | — | 0 |
| AS399165US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS399189US | STRAIGHT-SHOT-WIRELESS - Straight Shot Wireless | — | — | 0 |
| AS399306US | PCF-LABS-01 - Pigs Can Fly Labs LLC | — | — | 0 |
| AS399318US | HOSTIFI - HostiFi | — | — | 0 |
| AS399324US | APOG-LOCK-HAVEN - Apogee Telecom Inc. | — | — | 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 |