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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 21,022 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,223 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,586 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,933 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,550 |
| AD12 - Adams 12 |
| 9.2K |
| — |
| 5 |
| AS209394US | MWS_RNPP_LON Kyndryl, Inc. | 9.2K | — | 16 |
| AS63089US | SST - Salina Spavinaw Telephone Company, Inc | 9.2K | 65.5K | 4 |
| AS39960US | BARNES-AND-NOBLE - Barnes & Noble Inc. | 9.2K | — | 30 |
| AS30082US | REDSAIL-TECHNOLOGIES - QS1 Data Systems | 9.2K | — | 35 |
| AS54427US | NETTA-2-54427 - NetTally, Inc | 9.2K | — | 22 |
| AS400810US | BREEZETECH - BreezeHost | 9.2K | 1K | 37 |
| AS7148US | GRAPHNET-NET - Graphnet, Inc. | 9.2K | — | 4 |
| AS4133US | BITWISE - Bitwise Internet Technologies, Inc. | 9.2K | — | 4 |
| AS3800US | AS3800 - AS3800 LLC | 9.2K | — | 36 |
| AS27205US | IHSM-AS27205 - IHS Global, Inc. | 9.2K | — | 18 |
| AS400304US | CRUNCHBITS - Redoubt Networks | 9.2K | 773 | 36 |
| AS36536US | ENTERHOST-AS - Enterhost | 9.2K | — | 36 |
| AS30341US | SCTA-ASN - South Central Telephone Association | 9.2K | — | 2 |
| AS12090US | NET-AAA - AAA National | 9.2K | — | 21 |
| AS399091US | INTERDATALINK-INC - Inter Data Link Inc | 9.2K | 65.5K | 12 |
| AS46378US | FSX-350 - FSX HOLDINGS, LLC | 9.2K | 4.1K | 24 |
| AS19443US | STAPLES - Staples, Inc | 9.2K | — | 22 |
| AS394579US | OKLAHOMA-WESTERN - Oklahoma Western Telephone Company | 9.2K | — | 2 |
| AS393942US | AS393942 - WiredISP Inc. | 9.2K | — | 36 |
| AS25830US | BLUE-VALLEY - Blue Valley Tele-communications, Inc. | 9.2K | — | 2 |
| 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 |
| AS53832US | ASN-BOYCOM - Boycom Cablevision | 9.2K | — | 7 |
| AS46506US | SIMPLEHELIX - SimpleHelix.com | 9.2K | 65.5K | 16 |
| AS8095US | LIGHTSTACKGLOBAL - LightStack Global LLC | 9.2K | — | 36 |
| AS11708US | LINKCITY - City of North Kansas City, MO | 9.2K | 65.5K | 4 |
| AS33570US | CLOUDPATH - Cloudpath | 9.2K | — | 21 |
| AS35894US | NATCONET-1 - Northern Arkansas Telephone Company | 9.2K | 65.5K | 33 |
| AS14161US | LANDOLAKES - Land O'Lakes, Inc. | 9.2K | — | 9 |
| AS53274US | SKYRUNNER-INC - Skyrunner, Inc. | 9.2K | 513 | 28 |
| AS62759US | RUCLS1 - Reedsburg Utility Commission | 9.2K | — | 5 |
| AS25967US | OATI-BLM - OPEN ACCESS TECHNOLOGY INTERNATIONAL, INC. | 9.2K | — | 4 |
| AS13853US | ECTISP-AS - ECTISP Ellis County Texas Internet Service Provider Inc. | 9.2K | — | 6 |
| AS1US | LVLT-1 - Level 3 Parent, LLC | 9.1K | — | 127 |
| AS11537US | INTERNET2-RESEARCH-EDU - Internet2 | 9.1K | 65.5K | 25 |
| AS33313US | AS33313 - Crown Castle Fiber LLC | 9K | — | 16 |
| AS26388US | FIBERFI - FIBERFI | 9K | 3 | 38 |
| AS31929US | GREATRIVERENERGY - Great River Energy | 9K | — | 4 |
| AS394911US | COM1-ASN - Comm1 | 9K | — | 12 |
| AS32408US | AECERO - AECERO, INC. | 9K | — | 6 |
| AS30282US | AS-INAPCDN-OCY - Unitas Global | 9K | 16.4K | 13 |
| AS19576US | EASTERN-AS-01 - Eastern University | 9K | — | 6 |
| AS401333US | CERANET - CeraNet, Inc. | 9K | 65.5K | 27 |
| AS197832US | NaviSiteEurope NAVISITE OPCO LLC | 9K | — | 9 |
| AS26421US | PONDEROSA-INTERNET - Ponderosa Cablevision | 9K | — | 15 |