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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 |
| — |
| — |
| 0 |
| AS23293US | KNAOHUS - KNOAH SOLUTIONS | — | — | 0 |
| AS23321US | PH-ASN - Pleasant Holidays LLC | — | — | 0 |
| AS23529US | BONAPPETIT - BON APPETIT MGMT CO | — | — | 0 |
| AS25608US | AARONSNET - Aaron's Net | — | — | 0 |
| AS25630US | RPMAS - RP Management, LLC | — | — | 0 |
| AS25650US | ION-WESTPALMBEACH-WPB - The E.W. Scripps Company | — | — | 0 |
| AS25698US | SMART-CITY - Smart City Telecom | — | — | 0 |
| AS25702US | MORRISDICKSON1 - New Tech Computer Systems | — | — | 0 |
| AS25708US | SNAUTO - Sonic Automotive, Inc. | — | — | 0 |
| AS25768US | AQ-1 - Aquent, LLC | — | — | 0 |
| AS25953US | INTERMOUNTAINIG-AS-01 - Intermountain | — | — | 0 |
| AS25982US | NORTH-DALLAS-BANK - North Dallas Bank and Trust | — | — | 0 |
| AS26047US | MGMEAD - Meadgroup, Inc. | — | — | 0 |
| AS26067US | REDSEA - REDSEACLOUD LLC | — | — | 0 |
| AS26203US | ALLEGHENYINTEL-ALT - Breezeline | — | — | 0 |
| AS26212US | DRF-IXNET-HI - DR Fortress, LLC | — | — | 0 |
| AS26267US | SIMPLER-WEBB - Simpler-Webb, Inc. | — | — | 0 |
| AS26309US | MUSIC-CITY-IX-ROUTE-SERVERS - Richmond-IX Corporation | — | — | 0 |
| AS26314US | TI-AUTOMOTIVE - TI GROUP AUTOMOTIVE SYSTEMS, L.L.C. | — | — | 0 |
| AS26322US | DIGICOMM - DIGITAL COMM LINK, INC. | — | — | 0 |
| AS26339US | JAS-NETWORKS-INC - The Iserv Company, LLC | — | — | 0 |
| AS26432US | HSBGROUP - Hartford Steam Boiler Inspection & Insurance Company | — | — | 0 |
| AS26435US | MERCHANT-SOLUTIONS-26435 - Worldpay, LLC | — | — | 0 |
| AS26474US | PRODEGE-SPARE - MyPoints.com, Inc. | — | — | 0 |
| AS26571US | ZBI - Ziff Brothers Investments, LLC | — | — | 0 |
| AS26586US | COMENTUM - Comentum Corp. | — | — | 0 |
| AS26635US | MCCC-10152002-NJEDGE - Mercer County Community College | — | — | 0 |
| AS26803US | FIBERNOC - Evocative, Inc. | — | — | 0 |
| AS26900US | LPS-6 - Black Knight IP Holding Company, LLC | — | — | 0 |
| AS26908US | EPIQAS-1 - DOCUMENT | — | — | 0 |
| AS26924US | SANJOSE-SCHOOLS - San Jose Unified School District | — | — | 0 |
| AS26953US | AJGCO-GB - Gallagher Bassett Services, Inc. | — | — | 0 |
| AS26965US | FACTUAL - Factual Inc. | — | — | 0 |
| AS27037US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27038US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27082US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27089US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27115US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27157US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27158US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27171US | WINDSTREAM - Windstream Communications LLC | — | — | 0 |
| AS27199US | VELOCITY-NETWORKS-INC - Velocity Networks, Inc. | — | — | 0 |
| AS27211US | AS27211 - Conduent Business Services, LLC | — | — | 0 |
| AS27230US | MEIKO - Meiko America, Inc | — | — | 0 |
| AS27286US | MCALLEN-DATA-CENTER - McAllen Data Center, LLC | — | — | 0 |
| AS27310US | 180SERVERS - 180Servers.com | — | — | 0 |