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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| 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 | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1K |
| — |
| 1 |
| AS32005US | THE-CHURCH-PENSION-GROUP - CHURCH PENSION GROUP SERVICES CORPORATION | 1K | — | 4 |
| AS32386US | FASTNET-WIRELESS-LLC - Fastnet Wireless LLC | 1K | — | 1 |
| AS11110US | SERVERCLOUD - SERVERCLOUD | 1K | 65.5K | 2 |
| AS26074US | FRESHDIRECTLLC - Fresh Direct, LLC | 1K | — | 4 |
| AS18830US | HMH-18830 - HMH | 1K | — | 3 |
| AS36432US | PRIMARYDATACENTER - Mirror Plus Technologies Inc. | 1K | — | 4 |
| AS39954US | GATEWAYTC - Gateway Technical College | 1K | — | 4 |
| AS397288US | MCREY - McNaughton-McKay Electric Company | 1K | — | 4 |
| AS63445US | CFG - Cetera Financial Group, Inc. | 1K | — | 3 |
| AS398860US | OPTIDATA-US1 - OPTIDATA CLOUD | 1K | 65.5K | 4 |
| AS401626US | NETIFACE-TORONTO - Netiface America, Inc. | 1K | — | 4 |
| AS46897US | RACKNET1 - Rack Wizards Inc | 1K | — | 1 |
| AS3688US | HSS-1 - Hospital for Special Surgery | 1K | — | 3 |
| AS32782US | PROD - Stratos Global Services, LLC | 1K | — | 1 |
| AS393968US | GOLDKEY-CORPORATION - GoldKey Corporation | 1K | — | 4 |
| AS17374US | WALMART - Wal-Mart Stores, Inc. | 1K | — | 3 |
| AS54882US | CONNECTIVITY-IN-A-BOX - Connectivity In a Box, LLC | 1K | — | 4 |
| AS28688US | MINDSHARE-AS WPP Group USA, Inc. | 1K | — | 3 |
| AS19539US | IPONLY-US-AS - IP-Only Inc | 1K | 65.5K | 2 |
| AS396252US | CYBERANNEX - CYBERANNEX CORPORATION | 1K | — | 1 |
| AS36655US | THORN-36655 - Thornton Township High Schools District 205 | 1K | — | 1 |
| AS62909US | FCCU-ASN1 - FIRST COMMUNITY CREDIT UNION | 1K | 256 | 4 |
| AS40049US | ESC-2 - Education Service Center, Region 2 | 1K | — | 1 |
| AS27271US | URNA-1 - United Rentals (North America), Inc. | 1K | — | 3 |
| AS46099US | KHENET - Kaplan Higher Education Corporation | 1K | — | 1 |
| AS18568US | BIDTELLECT - Bidtellect Inc. | 1K | — | 2 |
| AS40493US | GAYLORD PACIFIC IP MANAGEMENT - Gaylord Pacific Resort and Convention Center | 1K | — | 2 |
| AS396121US | BAYER-BERKELEY - Bayer Corporation | 1K | — | 3 |
| AS11354US | CAROLINAS-HEALTHCARE-SYSTEM - Carolinas Healthcare System | 1K | — | 2 |
| AS54954US | INFOSTRUCTURES - INFOSTRUCTURES, INC. | 1K | — | 1 |
| AS394927US | AFFINION-GROUP - Affinion Group, Inc. | 1K | — | 4 |
| AS393486US | APOG-MUOP - Apogee Telecom Inc. | 1K | — | 3 |
| AS21989US | SPECTRUM-BRANDS - Spectrum Brands, Inc. | 1K | — | 3 |
| AS26023US | SCHWANS-SHARED-SERVICES - Schwan's Shared Services, LLC. | 1K | — | 4 |
| AS397556US | IAA - Insurance Auto Auctions, Inc | 1K | 1 | 5 |
| AS22171US | IPSV-ASN1 - IP Services | 1K | — | 1 |
| AS23043US | ROVER-WIRELESS - Rover Wireless Corporation | 1K | — | 1 |
| AS22885US | ASI - ADVERTISING SPECIALTY INSTITUTE, INC. | 1K | — | 3 |
| AS18640US | IDEALAB - Idealab | 1K | 1 | 4 |
| AS400423US | CATHOLIC-HEALTH - Catholic Health | 1K | — | 4 |
| AS393635US | AWT-CORP-001 - Area-Wide Technologies, Inc | 1K | 4.1K | 5 |
| AS214140US | Yaman-Hosting-LLC Yaman Hosting LLC | 1K | — | 4 |
| AS19941US | CONCORDIA-UNIVERSITY-CHICAGO - Concordia University Chicago | 1K | — | 1 |
| AS54072US | ASN-CCC - Central Community College | 1K | — | 4 |
| AS13629US | DEEM-INC - Deem, Inc. | 1K | — | 4 |
| AS54629US | AFSTORES-AS - Associated Food Stores, Inc. | 1K | — | 3 |