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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| 9.2K |
| 513 |
| 28 |
| AS54155US | GREENCLOUD - Green Cloud Technologies,LLC | 9.2K | — | 29 |
| AS209394US | MWS_RNPP_LON Kyndryl, Inc. | 9.2K | — | 16 |
| AS36536US | ENTERHOST-AS - Enterhost | 9.2K | — | 36 |
| AS35894US | NATCONET-1 - Northern Arkansas Telephone Company | 9.2K | 65.5K | 33 |
| AS2721US | SCLR - CULR, LLC | 9.2K | 65.5K | 6 |
| AS20355US | NTG-AS - REV | 9.2K | 65.5K | 5 |
| AS16411US | NREL-AS-NATIONAL-RENEWABLE-ENERGY-LABORATORY - National Renewable Energy Laboratory | 9.2K | 1 | 5 |
| AS4133US | BITWISE - Bitwise Internet Technologies, Inc. | 9.2K | — | 4 |
| AS36600US | FROEDTERT-COMMUNITY-HELATH - Froedtert Memorial Lutheran Hospital, Inc. | 9.2K | — | 4 |
| AS395226US | SACRAMENTO-COE - Sacramento County Office of Education | 9.2K | 1 | 35 |
| AS393733US | FEDERATED-BROADBAND-MN - Federated Broadband | 9.2K | — | 5 |
| AS16788US | TCW-AR - The Computer Works of Arkansas, Inc. | 9.2K | — | 36 |
| AS21528US | ALASCONNECT - AlasConnect Inc. | 9.2K | 65.5K | 5 |
| AS39960US | BARNES-AND-NOBLE - Barnes & Noble Inc. | 9.2K | — | 30 |
| AS54427US | NETTA-2-54427 - NetTally, Inc | 9.2K | — | 22 |
| AS46506US | SIMPLEHELIX - SimpleHelix.com | 9.2K | 65.5K | 16 |
| AS7148US | GRAPHNET-NET - Graphnet, Inc. | 9.2K | — | 4 |
| AS25830US | BLUE-VALLEY - Blue Valley Tele-communications, Inc. | 9.2K | — | 2 |
| AS31998US | KDSNET - Konceptio Data Services LLC | 9.2K | — | 24 |
| AS20308US | STARTEKUSA - StarTek USA, INC. | 9.2K | — | 10 |
| AS26342US | DTTS-ASN - Deloitte Touche Tohmatsu Services, Inc. | 9.2K | 4.1K | 9 |
| AS30136US | AD12 - Adams 12 | 9.2K | — | 5 |
| AS393759US | CITY-OF-AUSTIN - City of Austin, Texas | 9.2K | — | 21 |
| AS33287US | COMCAST-33287 - Comcast Cable Communications, LLC | 9.2K | 303 | 336 |
| AS53832US | ASN-BOYCOM - Boycom Cablevision | 9.2K | — | 7 |
| AS7314US | SCIPIO-TECH-7314 - Peace Communications LLC | 9.2K | 65.5K | 7 |
| AS19043US | ONEBEACONINSURANCEGROUP - OneBeacon Insurance Group LTD | 9.2K | — | 4 |
| AS32667US | 7-ELEVEN-NETWORK - 7-Eleven, Inc. | 9.2K | — | 17 |
| AS22523US | NMCOURTS-ASN - State of NM Administrative Office of the Courts | 9.2K | — | 3 |
| AS14161US | LANDOLAKES - Land O'Lakes, Inc. | 9.2K | — | 9 |
| AS399275US | SOLID - Solid Systems LLC | 9.2K | 15 | 51 |
| AS13853US | ECTISP-AS - ECTISP Ellis County Texas Internet Service Provider Inc. | 9.2K | — | 6 |
| AS22360US | REDHAT-2 - Red Hat, Inc. | 9.2K | 258 | 8 |
| AS40401US | BACKBLAZE - Backblaze Inc | 9.2K | 103 | 79 |
| AS47096US | COMPISP - Compudyne, Inc. | 9.2K | 32.8K | 20 |
| AS14335US | VC3 - VC3, Inc. | 9.2K | 65.5K | 3 |
| AS62759US | RUCLS1 - Reedsburg Utility Commission | 9.2K | 65.5K | 6 |
| AS8095US | LIGHTSTACKGLOBAL - LightStack Global LLC | 9.2K | — | 36 |
| AS19576US | EASTERN-AS-01 - Eastern University | 9K | — | 6 |
| AS27079US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 9K | — | 4 |
| AS32408US | AECERO - AECERO, INC. | 9K | — | 6 |
| AS401333US | CERANET - CeraNet, Inc. | 9K | 65.5K | 27 |
| AS12222US | AKAMAI - Akamai Technologies, Inc. | 9K | 115 | 149 |
| AS33313US | AS33313 - Crown Castle Fiber LLC | 9K | — | 16 |
| AS26388US | FIBERFI - FIBERFI | 9K | 3 | 38 |
| AS400529US | INFRALY-LLC - Infraly, LLC | 9K | 1 | 36 |