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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 | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| 9.2K |
| — |
| 8 |
| AS26342US | DTTS-ASN - Deloitte Touche Tohmatsu Services, Inc. | 9.2K | 4.2K | 10 |
| AS7314US | SCIPIO-TECH-7314 - Peace Communications LLC | 9.2K | 65.5K | 7 |
| AS30082US | REDSAIL-TECHNOLOGIES - QS1 Data Systems | 9.2K | — | 35 |
| AS11038US | SALISH-NETWORKS - Salish Networks, Inc. | 9.2K | — | 12 |
| AS16411US | NREL-AS-NATIONAL-RENEWABLE-ENERGY-LABORATORY - National Renewable Energy Laboratory | 9.2K | 1 | 5 |
| AS25967US | OATI-BLM - OPEN ACCESS TECHNOLOGY INTERNATIONAL, INC. | 9.2K | — | 4 |
| AS33287US | COMCAST-33287 - Comcast Cable Communications, LLC | 9.2K | 309 | 342 |
| AS46378US | FSX-350 - FSX HOLDINGS, LLC | 9.2K | 4.1K | 24 |
| AS32307US | VIAERO-WIRELESS-GPRS - NE COLORADO CELLULAR INC | 9.2K | 512 | 16 |
| AS399091US | INTERDATALINK-INC - Inter Data Link Inc | 9.2K | 65.5K | 12 |
| AS54155US | GREENCLOUD - Green Cloud Technologies,LLC | 9.2K | — | 29 |
| AS12090US | NET-AAA - AAA National | 9.2K | — | 21 |
| AS394579US | OKLAHOMA-WESTERN - Oklahoma Western Telephone Company | 9.2K | — | 2 |
| AS2721US | SCLR - CULR, LLC | 9.2K | 65.5K | 6 |
| AS398194US | UPRISE - Uprise LLC | 9.2K | — | 31 |
| AS13853US | ECTISP-AS - ECTISP Ellis County Texas Internet Service Provider Inc. | 9.2K | — | 6 |
| AS14335US | VC3 - VC3, Inc. | 9.2K | 65.5K | 3 |
| AS20308US | STARTEKUSA - StarTek USA, INC. | 9.2K | — | 10 |
| AS36600US | FROEDTERT-COMMUNITY-HELATH - Froedtert Memorial Lutheran Hospital, Inc. | 9.2K | — | 4 |
| AS22018US | TAUNTON-MUNICIPAL - Taunton Municipal Lighting Plant | 9.2K | — | 7 |
| AS46416US | BANKONIT - BankOnIT, L.L.C. | 9.2K | 16 | 13 |
| AS19043US | ONEBEACONINSURANCEGROUP - OneBeacon Insurance Group LTD | 9.2K | — | 4 |
| AS35894US | NATCONET-1 - Northern Arkansas Telephone Company | 9.2K | 65.5K | 33 |
| AS11019US | HAPROXY-TECHNOLOGIES - HAProxy Technologies, Inc. | 9.2K | 21 | 50 |
| AS54427US | NETTA-2-54427 - NetTally, Inc | 9.2K | — | 22 |
| AS14161US | LANDOLAKES - Land O'Lakes, Inc. | 9.2K | — | 9 |
| AS4133US | BITWISE - Bitwise Internet Technologies, Inc. | 9.2K | — | 4 |
| AS16788US | TCW-AR - The Computer Works of Arkansas, Inc. | 9.2K | — | 36 |
| AS13438US | VIVIO-TECHNOLOGIES - Vivio Technologies | 9.2K | — | 10 |
| AS393508US | VALLEYINTERNET - PERSONAL NETWORK COMPUTING | 9.2K | — | 26 |
| AS7148US | GRAPHNET-NET - Graphnet, Inc. | 9.2K | — | 4 |
| AS1US | LVLT-1 - Level 3 Parent, LLC | 9.1K | — | 126 |
| AS401333US | CERANET - CeraNet, Inc. | 9K | 65.5K | 27 |
| AS6995US | VRIS-6995 - Verizon Business | 9K | — | 35 |
| AS26421US | PONDEROSA-INTERNET - Ponderosa Cablevision | 9K | — | 15 |
| AS395129US | UNITED-FIBER - United Electric Cooperative | 9K | — | 8 |
| AS31929US | GREATRIVERENERGY - Great River Energy | 9K | — | 4 |
| AS33313US | AS33313 - Crown Castle Fiber LLC | 9K | — | 16 |
| AS197832US | NaviSiteEurope NAVISITE OPCO LLC | 9K | — | 9 |
| AS32408US | AECERO - AECERO, INC. | 9K | — | 6 |
| AS27079US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 9K | — | 4 |
| AS19576US | EASTERN-AS-01 - Eastern University | 9K | — | 6 |
| AS26388US | FIBERFI - FIBERFI | 9K | 3 | 38 |
| AS26499US | VATECH-DCMETRO - Virginia Polytechnic Institute and State Univ. | 9K | 258 | 7 |
| AS394911US | COM1-ASN - Comm1 | 9K | — | 12 |
| AS46262US | RTASN - ResTech Services LLC | 9K | 65.8K | 56 |