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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. | 211.2M | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,240 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,941 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1K |
| — |
| 1 |
| AS399886US | APOG-LYCOMING - Apogee Telecom Inc. | 1K | — | 3 |
| AS36061US | WATERLOO-01 - Waterloo Fiber | 1K | 4.1K | 2 |
| AS26254US | 568721-017489901135-1 - Mail2world INC. | 1K | — | 4 |
| AS396989US | LCS-01 - LookingGlass Cyber Solutions Inc. | 1K | — | 4 |
| AS33120US | VIRGINIA-BEACH-CITY-PUBLIC-SCHOOLS - Virginia Beach City Public Schools | 1K | — | 3 |
| AS400451US | CMTC - Curium Technologies | 1K | — | 1 |
| AS11746US | WAGGENER-EDSTROM - Waggener Edstrom Worldwide, Inc. | 1K | — | 4 |
| AS398969US | MSG-ENT - Sphere Entertainment Group, LLC | 1K | — | 4 |
| AS27284US | FOURPLEX-ASN - Fourplex Telecom LLC | 1K | 19 | 7 |
| AS21842US | PJM - PJM Interconnection LLC. | 1K | — | 3 |
| AS36469US | ATL-COLO - Noble Systems Corporation | 1K | — | 4 |
| AS11558US | TIU11-ORG - TUSCARORA INTERMEDIATE UNIT | 1K | — | 4 |
| AS11633US | 4LIFE-HOLDINGS-LLC - 4Life Research USA, LLC | 1K | — | 3 |
| AS62827US | THALES-DIS-COO-DFW-01 - Thales DIS USA, Inc. | 1K | 1 | 5 |
| AS22851US | NSU-SD - Northern State University | 1K | — | 4 |
| AS398820US | EA-ASN-01 - Eagle Alliance | 1K | 257 | 5 |
| AS394098US | OFFSITEDATASYNC - OFFSITEDATASYNC INC | 1K | — | 4 |
| AS14583US | VITA-VSP-1 - Virginia Information Technologies Agency (VITA) | 1K | — | 2 |
| AS26751US | IGT-AS-26751 - IGT | 1K | — | 4 |
| AS400678US | IPV4 - LIDL US OPERATIONS, LLC | 1K | — | 3 |
| AS22714US | SJC-ASN-01 - St. Joseph County Intermediate School District | 1K | — | 1 |
| AS19826US | UHS-088 - UNIVERSAL HEALTH SERVICES | 1K | — | 4 |
| AS23494US | HSC - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | 1K | — | 4 |
| AS397712US | APOG-PITS - Apogee Telecom Inc. | 1K | — | 3 |
| AS397596US | ADP-USDC01-01 - Assured DP | 1K | — | 4 |
| AS396289US | WASHCORP-AS2 - Washington Corporations | 1K | — | 3 |
| AS25623US | CISN2 - TowardEX Technologies International, Inc. | 1K | 65.8K | 8 |
| AS22348US | COGNITION - Cognition AI, Inc. | 1K | 256 | 2 |
| AS399308US | UFP-GR - UFP Industries, Inc. | 1K | — | 3 |
| AS29970US | DEVONCORP - Devon Energy Corporation | 1K | — | 4 |
| AS19463US | RISE-AS19463 - JAB Wireless, INC. | 1K | — | 4 |
| AS46875US | HUNTSVILLEHOSPITAL - Huntsville Hospital | 1K | 1 | 5 |
| AS47071US | CHR-SOLUTIONS - CHR SOLUTIONS INC | 1K | — | 4 |
| AS207020US | ProMarketingCentral Pro Marketing Central LLC | 1K | 524.3K | 3 |
| AS398638US | JELLYDIGITAL - Jelly Digital, LLC. | 1K | — | 3 |
| AS6979US | SAP-SE-PHL - SAP America Inc. | 1K | — | 3 |
| AS393455US | MNWIFI - Minnesota WiFi | 1K | — | 1 |
| AS17304US | VWC-NET - Vegas WiFi | 1K | — | 4 |
| AS14964US | AAPINT - Advance Auto Parts, Inc. | 1K | — | 4 |
| AS4889US | USPSOIG-AS2 - United States Postal Service Office of Inspector General | 1K | — | 3 |
| AS15110US | HILLS-CCC-INET - Hillsborough County - Clerk of Circuit Court | 1K | — | 4 |
| AS32143US | VNILESASNET - The Village of Niles | 1K | — | 4 |
| AS399871US | HFL-NETWORKS - HFL Networks LLC | 1K | 65.5K | 2 |
| AS55268US | WA-EDMONDS15 - Edmonds School District #15 | 1K | — | 3 |
| AS1647US | INTEROP-AS - Interop Technologies | 1K | — | 4 |
| AS29934US | NETACOM - Netadyne Networks, Inc. | 1K | — | 3 |