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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,138 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,417 |
| 256 |
| — |
| 1 |
| AS393308US | IA-CIC-AS - City of Iowa City | 256 | 257 | 3 |
| AS32226US | MENARD-INC - Menard, Inc. | 256 | — | 1 |
| AS20138US | CTHS-ASN-20138 - Carson Tahoe Health System | 256 | — | 1 |
| AS2539US | GLAXOSMITHKLINE - GlaxoSmithKline | 256 | — | 1 |
| AS33622US | NEXET-NETWORK - NEXET, LLC | 256 | 2 | 3 |
| AS395321US | MOLEX-AS - MOLEX LLC | 256 | — | 1 |
| AS23452US | WIND-MTC-BGP-2017 - MCPHERSON COLLEGE | 256 | — | 1 |
| AS40693US | AS-CVMC-CENTRAL-VERMONT-MEDICAL-CENTER - Central Vermont Medical Center | 256 | — | 1 |
| AS23508US | CGH-MAIN-CAMPUS - Chesapeake General Hospital | 256 | — | 1 |
| AS11048US | DIGITALSTAKEOUT - DigitalStakeout | 256 | 1 | 2 |
| AS53436US | KIRKLAND-ELLIS-PH - Kirkland & Ellis LLP | 256 | — | 1 |
| AS32321US | NEWARKNET - NEWARK NET | 256 | — | 1 |
| AS401802US | KANTIME-01 - KanTime | 256 | — | 1 |
| AS12031US | LORD-CORP-CARY - Lord Corporation | 256 | — | 1 |
| AS3459US | STBTC-SOUTH-TEXAS-BLOOD-AND-TISSUE-CENTER - South Texas Blood and Tissue Center | 256 | — | 1 |
| AS398953US | ABC-WAREHOUSE - ABC Warehouse | 256 | — | 1 |
| AS400239US | DESCHUTES - Deschutes County | 256 | — | 1 |
| AS46451US | NORTHERN-LIGHT-HEALTH - Eastern Maine Healthcare Systems | 256 | — | 1 |
| AS394457US | OMNIMODE - OMNI-MODE TRADE LLC | 256 | 65.5K | 2 |
| AS26078US | JRTHOMPSON-NOC - J.R. Thompson Company | 256 | — | 1 |
| AS395726US | TRULITE - Trulite Glass & Aluminum Solutions, LLC | 256 | — | 1 |
| AS401546US | HCDL-ASHBURN-DATA-CENTER - H5 Data Centers | 256 | — | 1 |
| AS60808US | AP-2440-60808 - Anthropic, | 256 | — | 1 |
| AS55109US | KASON-ASN - KASON INDUSTRIES INC. | 256 | — | 1 |
| AS11370US | UW-ASN-01 - UltraWISP, LLC | 256 | — | 1 |
| AS396375US | LCSVA - Lynchburg City Schools | 256 | — | 1 |
| AS18661US | DCA-BGP - Dunn Carney Allen Higgins & Tongue, LLP | 256 | — | 1 |
| AS402216US | EWL-TTFF-2NM - Town to Farm Fiber | 256 | 256 | 2 |
| AS398563US | MIBROADBAND - MiBroadband, LLC | 256 | — | 1 |
| AS47017US | JRFJ-USE - Unlimited Systems Engineering | 256 | — | 1 |
| AS11438US | LEMANS-1 - LeMans Corporation | 256 | — | 1 |
| AS16470US | WINGNET-AS1 - WingNET Internet Services | 256 | — | 1 |
| AS401716US | CAL-STO - State Treasurer's Office | 256 | — | 1 |
| AS22880US | PRIMED-HPMG - PRIMED MANAGEMENT CONSULTING INC | 256 | — | 1 |
| AS30478US | AVT - Affinity VoIP Telecom, Inc. | 256 | — | 1 |
| AS398164US | WHITEFISHCU-CO - WHITEFISH CREDIT UNION ASSOCIATION | 256 | — | 1 |
| AS402347US | CAV-MNG-AS-01 - Cavnue | 256 | 1 | 2 |
| AS397503US | DC001POC-01 - Nuvek LLC. | 256 | — | 1 |
| AS399876US | IEHP-AT - Inland Empire Health Plan | 256 | — | 1 |
| AS400284US | LTP-USDC-FO-01 - Lifetime Products, Inc. | 256 | — | 1 |
| AS395818US | SAFE-PROP - SAFEGUARD PROPERTIES MANAGEMENT, LLC | 256 | — | 1 |
| AS399120US | DDAF-LOU - Dean Dorton | 256 | 1 | 2 |
| AS47032US | CITY-OF-MIAMI - City of Miami | 256 | — | 1 |
| AS400355US | STRCTRPNT-INDY-01 - American Structurepoint, INC | 256 | — | 1 |
| AS400900US | SKHMSA-WEB - SK Hynix Memory Solutions America Inc. | 256 | — | 1 |
| AS13957US | MNAA - Metropolitan Nashville Airport Authority | 256 | — | 1 |