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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 | 23,999 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| 2.3K |
| — |
| 5 |
| AS399519US | WILDSTAR-NETWORKS-01 - WildStar Networks | 2.3K | — | 4 |
| AS2941US | ONEPA-DUFVA - OnePartner, LLC | 2.3K | — | 3 |
| AS399584US | LIBERTY-BROADBAND - Liberty Broadband LLC | 2.3K | 4.1K | 6 |
| AS401418US | GLOBAL-PEERING-ALLIANCE - Red Team LTD | 2.3K | 5 | 14 |
| AS36215US | TYSON-SHARED-SERVICES - Tyson Shared Services, Inc. | 2.3K | — | 5 |
| AS395565US | MIEMX - Mexico Internet Exchange | 2.3K | — | 7 |
| AS397006US | MULLCLOUD - Mullcloud LLC | 2.3K | 266.2K | 4 |
| AS18569US | COMSPECO-NET-1 - COMMUNICATION SPECIALISTS | 2.3K | — | 6 |
| AS393341US | SPOKANE-COUNTY - Spokane County | 2.3K | 1 | 3 |
| AS22237US | TSDC-AS - Technology Solutions of SC Inc. | 2.3K | — | 9 |
| AS394298US | US-SC-DAL-AS - Airlinq Inc | 2.2K | 2 | 13 |
| AS20080US | AMPATH - Florida International University | 2.1K | 98.3K | 9 |
| AS402631US | FLIPTHEORY - FlipTheory | 2K | — | 8 |
| AS7003US | GNET-ARIN-AS - GNET INC. | 2K | — | 5 |
| AS36481US | DIGITALEDGE-VENTURES-INC - DIGITAL EDGE VENTURES INC. | 2K | — | 5 |
| AS30038US | ANDRENA - Andrena, Inc. | 2K | — | 8 |
| AS398311US | IT-AUDITORS-PR-CORP - IT Auditors PR, Corp. | 2K | — | 5 |
| AS32530US | OPUS-AS1 - Opus Corporation | 2K | — | 5 |
| AS23509US | INVLOCSVC - Inventory Locator Service, LLC | 2K | — | 8 |
| AS5008US | TW-ASN-01 - Boldyn Networks Transit US LLC | 2K | — | 5 |
| AS33444US | ASN-TAZEWELL-CO-VA-GOVT - Tazewell County | 2K | — | 1 |
| AS6336US | TURN-US-ASN - Turn Inc. | 2K | 1 | 4 |
| AS18659US | MERCHANT-SOLUTIONS-18659 - Worldpay, LLC | 2K | — | 8 |
| AS31920US | GEETEL-AS - Geetingsville Telephone Co., Inc. | 2K | — | 1 |
| AS10558US | BIOLA---BIOLA-UNIVERSITY - Biola University, Inc. | 2K | — | 6 |
| AS402309US | AS-AURO - AuroraNetworks LLC | 2K | — | 5 |
| AS36466US | COHERE - Cohere Communications, LLC | 2K | — | 2 |
| AS6586US | WEBCENTRIC - WebCentric Communications, Inc. | 2K | — | 1 |
| AS62488US | CCG-AS - Columbia County, Georgia | 2K | 65.5K | 2 |
| AS26087US | GARDNER-WEBB - Gardner-Webb University | 2K | — | 1 |
| AS401243US | KOMI-NET - Komi LLC | 2K | 45 | 53 |
| AS11046US | LITTLE-APPLE - Little Apple Technologies | 2K | — | 8 |
| AS40667US | OIS-53-ASN - Optiquest Internet Services, Inc. | 2K | — | 1 |
| AS26921US | CYBERSHARKS-NET - CYBERSHARKS.NET | 2K | — | 1 |
| AS46455US | NLI-ISP - WWLTH, Inc | 2K | 65.6K | 8 |
| AS400454US | AS-DATAREMOTE - DataRemote, Inc. | 2K | — | 8 |
| AS399704US | HALSEY - GigXero Inc | 2K | — | 6 |
| AS402857US | HTOCSL - Highland | 2K | — | 8 |
| AS19272US | RCL-268-19272 - Rochester Colo LLC | 2K | 65.5K | 2 |
| AS14205US | RPAPSL-14205 - Riviera Park Alameda Padre Serra LLC | 2K | — | 2 |
| AS55253US | CAA-55253 - Creative Artists Agency, LLC | 2K | 1 | 9 |
| AS18614US | YAKNET - Yakima County | 2K | — | 1 |
| AS23521US | BSERV-1-AS-23521 - Finastra Merchant Services, Inc. | 2K | — | 2 |
| AS53633US | PANTHER - A&A Communications LLC | 2K | — | 6 |
| AS40947US | FWOCE-AS42 - Franklin W. Olin College Of Engineering | 2K | — | 5 |
| AS27621US | AMERICAN-COMPUTER-ASSOCIATES-SCHUYL-INC - AMERICAN COMPUTER ASSOCIATES | 2K | — | 8 |