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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,186 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,373 |
| 256 |
| — |
| 1 |
| AS19013US | 19013 - PFG Customized Distribution | 256 | — | 1 |
| AS21761US | CLUBCAR-01 - Club Car, LLC | 256 | — | 1 |
| AS396182US | VOIGTINDELECT-A - Voigt Industrial Electronics LLC | 256 | — | 1 |
| AS401270US | TVH-PARTS-US - TVH Parts Co. | 256 | — | 1 |
| AS42037US | Mozilla-Berlin Mozilla Corporation | 256 | 1 | 2 |
| AS396161US | DSM-AIRPORT-AUTHORITY - Des Moines Airport Authority | 256 | — | 1 |
| AS53964US | ADDSYSTEMS - Advanced Digital Data, Inc. | 256 | — | 1 |
| AS12020US | MHSC-BGP-ASN - Methodist Hospital of Southern California | 256 | — | 1 |
| AS54970US | NORTHERN-AIR-CARGO - NORTHERN AIR CARGO | 256 | — | 1 |
| AS22339US | UDBQ-1 - University of Dubuque | 256 | 258 | 4 |
| AS13699US | SWFLAFC - SWF Associates in Podiatric Medicine & Surgery | 256 | 1 | 2 |
| AS46229US | MDE - Million Dollar Elm Casino | 256 | — | 1 |
| AS395631US | KASD - Kutztown Area School District | 256 | 16 | 2 |
| AS394619US | OANDA-2 - OANDA Corporation | 256 | — | 1 |
| AS401071US | SEA-BOX - Sea Box, Inc. | 256 | — | 1 |
| AS36237US | AECC - Arkansas Electric Cooperative Corporation | 256 | — | 1 |
| AS30071US | OCCAID - TowardEX Technologies International, Inc. | 256 | — | 1 |
| AS395488US | ABSOLUTE-TECHNOLOGY-CONSULTING - Absolute Computing Solutions | 256 | — | 1 |
| AS396536US | SENTRACAM - SentraCam | 256 | — | 1 |
| AS36716US | DSO-ASN-01 - Morgan & Morgan, P.A. | 256 | — | 1 |
| AS33581US | PEOPLESBANK-NA - Peoples Bank, National Association | 256 | — | 1 |
| AS26882US | RIPPLE-BROADBAND - Ripple Broadband, LLC | 256 | 65.5K | 2 |
| AS393666US | COV-SML-NETWORKS - St. Mary's Health System | 256 | — | 1 |
| AS399701US | NWW-PHX-1 - NAVAERA WORLDWIDE, LLC | 256 | — | 1 |
| AS398668US | SKYDANCE - Skydance Productions LLC | 256 | 16 | 2 |
| AS23271US | CITY-OF-WATSONVILLE - City of Watsonville | 256 | — | 1 |
| AS33560US | LINCOLNINVESTMENTPLANNING - Lincoln Investment Planning, LLC. | 256 | — | 1 |
| AS397656US | CHI01-US-CENTRIEN-COM - Centrien | 256 | — | 1 |
| AS54419US | LIGHTPATH-PHOENIX - Cablevision Lightpath LLC | 256 | 1 | 2 |
| AS30080US | ARNOLD-MAGNETIC-TECHNOLOGIES-CORP-BGP - Arnold Magnetic Technologies Corporation | 256 | — | 1 |
| AS394982US | NIS - Network Innovation Solutions Inc. | 256 | — | 1 |
| AS396212US | AIMS-COMMUNITY-COLLEGE - Aims Community College | 256 | — | 1 |
| AS398269US | PAYERCOMPASS-01 - Voltaire Health, LLC | 256 | — | 1 |
| AS398162US | PANOLA-COLLEGE - Panola College | 256 | — | 1 |
| AS26093US | HAR - Houston Association of Realtors | 256 | — | 1 |
| AS395006US | BROOMFIELD-COLORADO - The City and County of Broomfield | 256 | — | 1 |
| AS29940US | LORETTO-MANAGEMENT-CORP - Loretto Management Corp. | 256 | — | 1 |
| AS53505US | DRCFA - Huntington Place | 256 | — | 1 |
| AS394702US | MGE - MADISON GAS AND ELECTRIC FOUNDATION, INC. | 256 | — | 1 |
| AS35856US | LWCC - Louisiana Workers' Compensation Corporation | 256 | — | 1 |
| AS393690US | AS-MARITIME - Massachusetts Maritime Academy | 256 | — | 1 |
| AS398483US | SRS-PHARMACY - SRS Pharmacy Systems, Inc. | 256 | 1K | 2 |
| AS53517US | ECOMATLANTIC - ECOM Atlantic, Inc. | 256 | — | 1 |
| AS397185US | LACU - Corda Credit Union | 256 | — | 1 |
| AS402023US | PACKETSOLUTIONS-ASN-01 - Packet Solutions LLC | 256 | — | 1 |
| AS21809US | LNRP - LNR Property Corp | 256 | — | 1 |