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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,173 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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 | 3,668 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,949 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,365 |
| FIBERLINK - FiberLink |
| 512 |
| 65.8K |
| 4 |
| AS29921US | SAIFCO - State Accident Insurance Fund Corporation | 512 | 3 | 5 |
| AS31803US | MMPLP - Magellan Midstream Partners, L.P. | 512 | — | 2 |
| AS30508US | TXDPS - Texas Department of Public Safety | 512 | — | 2 |
| AS15285US | SRLCD - Cash Depot | 512 | — | 2 |
| AS394764US | CONFLUENCE-HEALTH - Confluence Health | 512 | — | 2 |
| AS31779US | DEN-SPG-ASN - Denny's, Inc. | 512 | — | 2 |
| AS40056US | WGLV-20 - Westgate Resorts Ltd | 512 | — | 2 |
| AS54978US | ZYWAV-MKE-ASN - ZYWAVE INC | 512 | — | 2 |
| AS13725US | NOBULL-NETWORKS - Nobull Networks LLC | 512 | 2 | 3 |
| AS399566US | BIGCOMMERCE - Bigcommerce Inc. | 512 | — | 2 |
| AS62954US | WTG-AS - Walser Technology Group Inc. | 512 | — | 2 |
| AS14460US | HORIZON - Horizon Media, Inc. | 512 | — | 2 |
| AS400227US | INTERACTIVE-BROKERS-CORP - Interactive Brokers Corp | 512 | — | 2 |
| AS63157US | DBI-CMH9 - DSW Information Technology LLC. | 512 | — | 1 |
| AS53323US | ION-CLEARWATER-TOC - The E.W. Scripps Company | 512 | — | 2 |
| AS399828US | COKER-CAMPUS-01 - Coker University | 512 | — | 1 |
| AS400906US | AS-MINO - Mino Network LLC | 512 | — | 2 |
| AS20397US | BOXLAKE - Box Lake Networks, Inc. | 512 | — | 2 |
| AS32744US | MCCC - Montgomery County Community College | 512 | — | 2 |
| AS25762US | BOCUSA - Bank of China | 512 | — | 2 |
| AS398003US | TGNA-WOI - TEGNA Inc. | 512 | — | 2 |
| AS11248US | MSTS-NET - TreviPay | 512 | — | 2 |
| AS30252US | BMCD-US - BURNS & MCDONNELL, INC. | 512 | — | 2 |
| AS47657US | DEVEXPERTS-AS Devexperts Inc | 512 | — | 2 |
| AS55157US | COLLIERS - Colliers International | 512 | — | 2 |
| AS22615US | MONROECOUNTYCOMMSCH - Monroe County Community School Corporation | 512 | — | 2 |
| AS394877US | BCH - Blythedale Children's Hospital | 512 | — | 2 |
| AS62966US | AS-BRIGHTEDGE-COM - BrightEdge Technologies | 512 | — | 1 |
| AS36010US | RBSTARNET1 - Randolph-Brooks Federal Credit Union | 512 | — | 2 |
| AS18533US | AAAWA-3605 - AAA Washington | 512 | — | 1 |
| AS46192US | SWBC-ASN - SWBC | 512 | — | 2 |
| AS396086US | HAMPSHIRE-CAMPUS - Hampshire College | 512 | — | 2 |
| AS402234US | LARC-PUBLIC-1 - LOS ALISOS RANCH COMPANY, LP | 512 | — | 1 |
| AS400114US | APOG-RBC - Apogee Telecom Inc. | 512 | — | 2 |
| AS63431US | K-LOVE - EMF Broadcasting | 512 | — | 2 |
| AS35909US | ERGOS-TECHNOLOGY - ERGOS Technology Partners | 512 | — | 1 |
| AS54740US | DYNAWEB - Dynaweb Foundation | 512 | — | 2 |
| AS395976US | COMCAST-MES - Comcast Cable Communications, LLC | 512 | — | 2 |
| AS36525US | ALLEGIANCE-HEALTH - ALLEGIANCE HEALTH SERVICES | 512 | — | 2 |
| AS27304US | DUHAWKS - Loras College | 512 | — | 2 |
| AS397378US | PHOENIXNAP-BRA - PhoenixNAP LLC | 512 | 257 | 4 |
| AS12120US | AAO-AIO - Amphenol Corp | 512 | — | 2 |
| AS394770US | AXIGENT-TECHNOLOGIES-GROUP - Axigent Technologies Group, Inc. | 512 | 65.5K | 3 |
| AS393746US | MAXHOST-IO - Amazing Creations and More LLC | 512 | 5 | 7 |
| AS32610US | GLOBAL-AS - Global Companies LLC | 512 | — | 2 |
| AS16693US | AS-MIKES-HARD - mikes hard lemonade | 512 | — | 2 |