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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| — |
| 1 |
| AS30152US | PALA-BAND-OF-MISSION-INDIANS - Pala Band Of Mission Indians | 512 | — | 1 |
| AS396534US | DEEPSYS - Deep Systems LLC | 512 | — | 2 |
| AS396915US | AIRE-INTERNET-01 - Net Vision Communications, LLC | 512 | — | 1 |
| AS14786US | ALLURETELECOM - Allure Telecom Inc | 512 | — | 2 |
| AS54649US | ADC-ATLANTA - AutomationDirect.com, Inc. | 512 | — | 1 |
| AS62959US | INNOVSYS-1 - Innovative Systems LLC | 512 | — | 2 |
| AS401869US | SSL-GLOBAL - Shine Summit LLC | 512 | — | 2 |
| AS397311US | WTV1951 - Zito Media | 512 | — | 2 |
| AS20163US | SUNMED - Sunrise Medical, Inc. | 512 | — | 2 |
| AS398722US | CENSYS-ARIN-03 - Censys, Inc. | 512 | 2 | 4 |
| AS32689US | TGNA-KREM - TEGNA Inc. | 512 | — | 2 |
| AS16394US | KILLEEN-INDEPENDENT-SCHOOL-DISTRICT - Killeen ISD | 512 | — | 2 |
| AS401661US | EMBNEX-AS - EMBNEX, LLC | 512 | 65.5K | 3 |
| AS54691US | FCSA-AS - Farm Credit Services of America | 512 | — | 2 |
| AS23525US | CNC-CNB - Canandaigua National Corporation | 512 | — | 2 |
| AS400294US | PPI-TREMONT-01 - Precision Planting LLC | 512 | — | 2 |
| AS40534US | AM-AVK-MINDEN - American AVK Company | 512 | — | 2 |
| AS40686US | HBK-ROSEWOOD - HBK Services LLC | 512 | — | 2 |
| AS3788US | TEXAS-DOT - Texas Department of Transportation | 512 | — | 2 |
| AS393616US | ISS-GOVERNANCE - ISS Governance | 512 | — | 2 |
| AS19636US | FORMFACTOR - FORMFACTOR, INC | 512 | — | 1 |
| AS32894US | MCWANE - McWane, Inc. | 512 | — | 2 |
| AS14736US | CITY-AS14736 - City of Kansas City Missouri | 512 | — | 2 |
| AS2636US | LOUISVILLE-MSD-ASN-01 - LOUISVILLE AND JEFFERSON COUNTY METROPOLITAN SEWER DISTRICT | 512 | — | 1 |
| AS29905US | BAIN-CAPITAL - Bain Capital, LP | 512 | — | 2 |
| AS16769US | AS16769 - Sotheby's Inc. | 512 | — | 2 |
| AS1082US | HBH-ASN-1 - Zenith American Solutions, Inc. | 512 | — | 2 |
| AS54143US | HEHENET - i9 Technologies | 512 | 65.5K | 3 |
| AS393366US | CENTRA-5 - Centra Health, Inc. | 512 | — | 2 |
| AS395513US | WAB-PUBLIC - Woori America Bank | 512 | — | 2 |
| AS53369US | COUNTY-OF-ALBEMARLE - County of Albemarle | 512 | — | 2 |
| AS399809US | LAER-AS-FRA1 - UnitedLayer, LLC | 512 | 1 | 3 |
| AS62932US | VISALIA-UNIFIED-SCHOOL-DISTRICT - VUSD | 512 | — | 2 |
| AS32099US | NYSOAG-AS - New York State Office of the Attorney General | 512 | — | 2 |
| AS53381US | WAGWEB - Wagner-Weber Associates, Inc. | 512 | — | 2 |
| AS26907US | JFG-RACINE-ASN - Johnson Financial Group, Inc. | 512 | — | 2 |
| AS152879US | PHOENIXNAP-AS-TPE0 - PhoenixNAP LLC | 512 | 257 | 4 |
| AS396320US | MACORG - Metropolitan Airports Commission | 512 | 16 | 2 |
| AS199518US | GSHAPIRO-AS Gregory Shapiro | 512 | 17 | 19 |
| AS23042US | SJRMC-ASN - San Juan Regional Medical Center Inc. | 512 | — | 2 |
| AS208188US | PSNL-208188 - Puget Sound Networks, LLC | 512 | 2 | 4 |
| AS30018US | RED-GAP-COMMUNICATIONS-INC - Red Gap Communications, Inc. | 512 | — | 2 |
| AS26454US | HENRYSCHEIN - Henry Schein Inc | 512 | — | 2 |
| AS40668US | FENWAL-INCORPORATED - Fenwal, Inc. | 512 | — | 2 |
| AS23257US | IBMCCH-DAL-EQU - IBM | 512 | — | 2 |
| AS29994US | MR-MAHLE - Mark Mahle, LLC | 512 | 17 | 4 |