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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 | 21,149 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,953 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,395 |
| 256 |
| — |
| 1 |
| AS53599US | KENOSHA-COUNTY-WI - Kenosha County | 256 | — | 1 |
| AS401754US | HAMKING - Double Dog Adventures, LLC | 256 | 256 | 2 |
| AS395010US | OPC-PHX - Oracle Corporation | 256 | — | 1 |
| AS21754US | MARKEL-CORPORATION - Markel Corporation | 256 | — | 1 |
| AS26997US | GPJOSEPH - Joseph Hage Aaronson LLC | 256 | — | 1 |
| AS23403US | HALFBAT - Half Bat LLC | 256 | 65.5K | 2 |
| AS30156US | BDG-TECHNOLOGIES - BDG Technologies LLC | 256 | — | 1 |
| AS22531US | UDI-SMY-01 - United Distributors, Inc. | 256 | — | 1 |
| AS400298US | MADCITYSERVERS-LLC - Madcityservers LLC | 256 | 1 | 2 |
| AS54730US | BSA-ASN1 - BS&A Software, LLC | 256 | — | 1 |
| AS1380US | MCVEAN - McVEAN Trading & Investments, LLC | 256 | — | 1 |
| AS62945US | CORNERSTONE - Cornerstone Information Systems, Inc. | 256 | — | 1 |
| AS62677US | WFASN - William Floyd Union Free School District | 256 | — | 1 |
| AS135424US | EAAPPL-AS-AP - Electronic Arts Inc. for KR | 256 | — | 1 |
| AS397794US | APPLAUSE-MARLBORO - Applause | 256 | — | 1 |
| AS6260US | SIX2SIXO-NETWORKS - MOD Mission Critical, LLC | 256 | — | 1 |
| AS23880US | Yahoo-AEA - Internet content provider | 256 | 1 | 2 |
| AS36542US | SERVERNET - Gwinnett County Government | 256 | — | 1 |
| AS1315US | IPFS - Imperial PFS | 256 | — | 1 |
| AS30555US | VSCP01 - VariSpace Coppell, LLC | 256 | — | 1 |
| AS17068US | ASN-OMIG - Ohio Mutual Insurance Company | 256 | — | 1 |
| AS401471US | TICKETNETWORK-DC-01 - TicketNetwork Inc. | 256 | — | 1 |
| AS63171US | PASADENA-ISD-AS1 - Pasadena Independent School District | 256 | — | 1 |
| AS40002US | DAIICHISANKYO - Sankyo Pharma Inc. | 256 | — | 1 |
| AS64252US | LITE-PIPES - Lite Pipes Communications LLC | 256 | — | 1 |
| AS62939US | PINKBIKE-US-DC1 - Outside Interactive Canada Inc. | 256 | — | 1 |
| AS394165US | COGNC - City of Greenville, NC | 256 | — | 1 |
| AS395859US | INTERNETCONNECT - Internet Connect, LLC. | 256 | — | 1 |
| AS40847US | IBML-US-HQ - ibml | 256 | — | 1 |
| AS40451US | ASN-BOP - Board of Pensions of the Evangelical Lutheran Church in America | 256 | — | 1 |
| AS7356US | SIKLA-AS - Sikla Tech Limited | 256 | 256 | 2 |
| AS27545US | LV-INET - City National Bank | 256 | — | 1 |
| AS12265US | R2G-1 - Transaction Network Services, Inc. | 256 | — | 1 |
| AS398902US | CASS-REGIONAL - Cass Regional Medical Center | 256 | — | 1 |
| AS394948US | EDF-RE - EDF Renewables, Inc. | 256 | — | 1 |
| AS400950US | NULLEDLLC - nulled LLC | 256 | 1 | 2 |
| AS401310US | PMTC-ASN - Palmer Mutual Telephone Company | 256 | 4.1K | 2 |
| AS36527US | RINCON-WIRELESS - Rincon Wireless | 256 | — | 1 |
| AS30668US | MADISONCOUNTYNY-01 - Madison County New York | 256 | — | 1 |
| AS54751US | VEDP - Virginia Economic Development Partnership | 256 | — | 1 |
| AS53882US | COMMUNITECT - Communitect, Inc | 256 | — | 1 |
| AS396020US | LAMTEC-ASN - LAMTEC CORPORATION | 256 | — | 1 |
| AS19354US | WJCC-PUBLIC-SCHOOLS - Williamsburg James City County Public Schools | 256 | — | 1 |
| AS23359US | WLNYASN - WLNY-TV Inc | 256 | — | 1 |
| AS393325US | NMS-BGP - New Meadowlands Stadium Co., LLC | 256 | — | 1 |
| AS62951US | DDRCORP - DDR Corp. | 256 | — | 1 |