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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,263 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,336 |
| 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.
32,247 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,004 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,350 |
| 65.5K |
| 9 |
| AS26467US | HYPERTEK - HyperTEK Corporation | 2K | — | 8 |
| AS19217US | IVYTECHSC - IVY Tech Community College of Indiana | 2K | — | 1 |
| AS402165US | BROWSERSTACK INC - Browserstack, Inc. | 2K | — | 8 |
| AS27015US | FMCH-27015 - FRESENIUS MEDICAL CARE HOLDINGS, INC | 2K | — | 5 |
| AS54507US | ACCESSBROADBAND - Access Broadband | 2K | — | 1 |
| AS400218US | CHEROKEE-NATION-GOV - Cherokee Nation Government | 2K | — | 6 |
| AS398056US | VERITIV-ASN1 - Veritiv Operating Company | 2K | — | 8 |
| AS22945US | AS-PHHS - Parkland Health & Hospital System | 2K | — | 5 |
| AS396246US | WF-MAIN-ASN - WHITEFIBER HPC, INC. | 2K | — | 3 |
| AS395162US | MOD-PTC - Markit On Demand, Inc. | 2K | — | 8 |
| AS29906US | WESTAT-AS1 - Westat, Inc. | 2K | 1 | 9 |
| AS396904US | QUALISPACE-ASN - QualiSpace Inc | 2K | — | 8 |
| AS36849US | SAEOL-1-ASN - 1st Amendment Encrypted Openness LLC | 2K | — | 8 |
| AS22296US | VORSK - Vorsk LLC | 2K | 2 | 7 |
| AS18973US | TAG-ONLINE - TAG Online Inc. | 2K | 73.7K | 7 |
| AS30290US | WOCO - Western Ohio Computer Organization | 2K | — | 1 |
| AS395490US | LAKECOUNTYILLINOISGOVERNMENT - County of Lake | 2K | — | 3 |
| AS33368US | FXSERVER - Visual Trading Systems, LLC | 2K | — | 2 |
| AS15231US | STARNOVA-LLC - Starnova LLC | 2K | 4.1K | 2 |
| AS40761US | PRECISE-NETWORKS-INC - Precise Networks, Inc. | 2K | 4.1K | 3 |
| AS53501US | WHS-WEBMD - WebMD Health Services Group, Inc. | 2K | — | 6 |
| AS64204US | TTEK-12 - TETRA TECH, INC. | 2K | — | 8 |
| AS400212US | VERGETEL-GROUP-LLC - VergeTel Group LLC | 2K | 1 | 6 |
| AS13477US | NEUTRALNETWORKS - Neutral Networks | 2K | — | 1 |
| AS54989US | DUNCAN-TV - DUNCAN TELECOMMUNICATIONS LLC | 2K | — | 8 |
| AS32841US | BOINGO-AS-EC - Boingo Wireless, Inc. | 2K | — | 1 |
| AS399622US | WIRELESSDATANET-LLC-1 - Wireless Data Net, LLC | 2K | — | 4 |
| AS26026US | BUTLER-UNIVERSITY - Butler University | 2K | — | 1 |
| AS394829US | X1-COMM - X1 Communcations Inc | 2K | — | 7 |
| AS22462US | NOLA-BROADBAND-INC - NOLA BROADBAND LLC | 2K | 4.1K | 3 |
| AS16501US | I2C-ASN - i2c Incorporated | 2K | — | 8 |
| AS395450US | BOINGO-WIRELESS-BROADBAND - Boingo Wireless, Inc. | 2K | — | 1 |
| AS35967US | LAVATRADING-CITI01 - Citigroup Inc. | 2K | — | 8 |
| AS29771US | EXPRESS-LLC-PUBLIC - Express LLC | 2K | — | 8 |
| AS396284US | QSRGROUP - QSR GROUP LLC. | 2K | — | 8 |
| AS399654US | 360-NETWORKS - 360 Networks | 2K | — | 8 |
| AS21750US | CPOINT-NET-1 - CPOINT | 2K | — | 4 |
| AS393819US | LACKAWANNA-COUNTY - Lackawanna County Government | 2K | 65.5K | 6 |
| AS53324US | WILLARD-NET - LOCAL TV AND ELECTRONICS, INC. | 2K | — | 1 |
| AS14334US | PRIMARYAS - Renaissance Learning Inc. | 2K | — | 4 |
| AS20333US | OPSUS-NET - Cloudwave | 2K | — | 8 |
| AS3955US | CMPC-2008 - Compucom Systems | 2K | — | 8 |
| AS40736US | BOSE-CORPORATION-US - Bose Corporation | 2K | — | 8 |
| AS54396US | NUANCE-MOBILITY - Microsoft Corporation | 2K | — | 1 |
| AS400US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 2K | — | 1 |
| AS23230US | BROADNET-DENVER - Broadnet Teleservices LLC | 2K | — | 8 |