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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 | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,023 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 641 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,214 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 | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,007 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| 9K |
| 2 |
| 29 |
| AS17151US | VONAGE - Vonage Holdings, Inc. | 9K | — | 35 |
| AS401333US | CERANET - CeraNet, Inc. | 9K | 65.5K | 27 |
| AS26747US | PCTCNET-AS1 - Phillips County Telephone Company | 9K | — | 18 |
| AS4574US | NETDOOR - Internet Doorway, Inc. | 9K | — | 4 |
| AS13549US | MERCURY - Mercury Network Corporation | 9K | 65.5K | 4 |
| AS7752US | THRES - THRESHOLD COMMUNICATIONS,INC. | 9K | 4.1K | 5 |
| AS20185US | GEUS-CABLE-INTERNET - GE | 9K | — | 7 |
| AS19738US | ASSURANT-ATL01INET - Assurant, Inc. | 9K | 2 | 23 |
| AS32082US | BSC-20041102 - Bridgewater State University | 9K | — | 35 |
| AS32758US | TOTELCSI - TotelCSI | 9K | — | 12 |
| AS26499US | VATECH-DCMETRO - Virginia Polytechnic Institute and State Univ. | 9K | 258 | 7 |
| AS6995US | VRIS-6995 - Verizon Business | 9K | — | 35 |
| AS19443US | STAPLES - Staples, Inc | 9K | — | 21 |
| AS46262US | RTASN - ResTech Services LLC | 9K | 65.8K | 58 |
| AS2722US | C-LIGHT - CULR, LLC | 9K | 65.8K | 6 |
| AS33198US | AS33198-SWITCHLV - Qualcomm, Inc. | 9K | — | 4 |
| AS22352US | APPLIED-TECHNOLOGY - Applied Technology Group Inc. | 9K | — | 9 |
| AS395129US | UNITED-FIBER - United Electric Cooperative | 9K | — | 8 |
| AS400589US | LTCCONNECT - LTC Connect | 9K | — | 12 |
| AS19576US | EASTERN-AS-01 - Eastern University | 9K | — | 6 |
| AS27079US | DNIC-ASBLK-27032-27159 - United States Department of Defense DoD | 9K | — | 4 |
| AS26421US | PONDEROSA-INTERNET - Ponderosa Cablevision | 9K | — | 15 |
| AS32408US | AECERO - AECERO, INC. | 9K | — | 6 |
| AS33313US | AS33313 - Crown Castle Fiber LLC | 9K | — | 16 |
| AS200058US | ABBVIE AbbVie, Inc. | 9K | — | 16 |
| AS1US | LVLT-1 - Level 3 Parent, LLC | 9.1K | — | 126 |
| AS8095US | LIGHTSTACKGLOBAL - LightStack Global LLC | 9.2K | — | 36 |
| AS22018US | TAUNTON-MUNICIPAL - Taunton Municipal Lighting Plant | 9.2K | — | 7 |
| AS22523US | NMCOURTS-ASN - State of NM Administrative Office of the Courts | 9.2K | — | 3 |
| AS20355US | NTG-AS - REV | 9.2K | 65.5K | 5 |
| AS13853US | ECTISP-AS - ECTISP Ellis County Texas Internet Service Provider Inc. | 9.2K | — | 6 |
| AS20308US | STARTEKUSA - StarTek USA, INC. | 9.2K | — | 10 |
| AS7148US | GRAPHNET-NET - Graphnet, Inc. | 9.2K | — | 4 |
| AS35894US | NATCONET-1 - Northern Arkansas Telephone Company | 9.2K | 65.5K | 33 |
| AS14335US | VC3 - VC3, Inc. | 9.2K | 65.5K | 3 |
| AS2721US | SCLR - CULR, LLC | 9.2K | 65.5K | 6 |
| AS398194US | UPRISE - Uprise LLC | 9.2K | — | 31 |
| AS11054US | LIVEPERSON - LivePerson, Inc. | 9.2K | 40 | 56 |
| AS53832US | ASN-BOYCOM - Boycom Cablevision | 9.2K | — | 7 |
| AS30082US | REDSAIL-TECHNOLOGIES - QS1 Data Systems | 9.2K | — | 35 |
| AS30136US | AD12 - Adams 12 | 9.2K | — | 5 |
| AS27205US | IHSM-AS27205 - IHS Global, Inc. | 9.2K | — | 18 |
| AS12090US | NET-AAA - AAA National | 9.2K | — | 21 |
| AS40401US | BACKBLAZE - Backblaze Inc | 9.2K | 107 | 83 |
| AS7314US | SCIPIO-TECH-7314 - Peace Communications LLC | 9.2K | 65.5K | 7 |
| AS25830US | BLUE-VALLEY - Blue Valley Tele-communications, Inc. | 9.2K | — | 2 |