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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 | 24,540 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,305 |
| 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.
32,187 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,362 |
| 256 |
| 4.1K |
| 2 |
| AS399592US | IGO-TECHNOLOGY - iGo Technology, Inc. | 256 | — | 1 |
| AS11068US | HBMMJAS - Hanna, Brophy, MacLean, McAleer & Jensen, L.L.P | 256 | — | 1 |
| AS17010US | HOOSIER-ENERGY - Hoosier Energy Rural Electric Cooperative, Inc. | 256 | — | 1 |
| AS40105US | PRV-GAF-US-SE - PriVerify Corp. | 256 | — | 1 |
| AS7406US | PDX-DC - B&R Auto | 256 | — | 1 |
| AS54953US | CALIBER-NODE - Caliber Node, LLC | 256 | — | 1 |
| AS63441US | AS63441 - Crown Castle Fiber LLC | 256 | — | 1 |
| AS16576US | CODEX-STREAMING - Codex Streaming Company LLC | 256 | 65.5K | 2 |
| AS53765US | SFFEDCU - San Francisco Federal Credit Union | 256 | — | 1 |
| AS396409US | TKG-AS01 - KRAFT GROUP LLC | 256 | — | 1 |
| AS13920US | CLOUDWISH - CloudWish LLC | 256 | — | 1 |
| AS394286US | CITY-OF-JOHNSON-CITY - City of Johnson City | 256 | — | 1 |
| AS26219US | EAS-MN-1 - Deli Express | 256 | — | 1 |
| AS21619US | GREYWOLF-CAPITAL - Greywolf Capital Management LP | 256 | — | 1 |
| AS40522US | SIMPLE1 - Simple Signal, Inc. | 256 | — | 1 |
| AS1055US | CITY-OF-MANTECA-CALIFORNIA - City of Manteca | 256 | — | 1 |
| AS32930US | MMCHS - Meadville Medical Center | 256 | — | 1 |
| AS398931US | LS-ENTERPRISES - LS Enterprises | 256 | 1 | 2 |
| AS25737US | JONE - Jone Broadband LLC | 256 | 256 | 2 |
| AS46834US | ACLAB - Ascend Clinical, LLC | 256 | — | 1 |
| AS400553US | SUPERCORE - SuperCore LLC | 256 | — | 1 |
| AS401408US | SALADCLOUD - Salad Technologies, Inc. | 256 | 256 | 2 |
| AS398725US | NUSOCLOUD-NV - NUSO | 256 | — | 1 |
| AS396927US | MCCUHOUTX - Members Choice Credit Union | 256 | — | 1 |
| AS2886US | AS2886 - Anton Kapela, Sole Proprietorship | 256 | — | 1 |
| AS395837US | EIN - E-Innovations Networking Inc. | 256 | — | 1 |
| AS399133US | VANTAGE-POINT-SOLUTIONS - VPS Solutions, LLC | 256 | 256 | 2 |
| AS32876US | LYCOMING-COLLEGE - Lycoming College | 256 | — | 1 |
| AS40909US | FUNDAMENTAL-ADVISORS-ASN - Fundamental Advisors LP | 256 | — | 1 |
| AS398800US | TOLE-TX-NET - Town of Little Elm | 256 | — | 1 |
| AS10919US | TROYFP - Troy Corporation | 256 | — | 1 |
| AS11330US | BANKPLUS-NETWORK-01 - BankPlus | 256 | — | 1 |
| AS402045US | NOCKYRENTAL - NOCKYRENTAL LLC | 256 | — | 1 |
| AS25990US | OEC-OSH - OEC Graphics | 256 | — | 1 |
| AS26535US | AMDA - American Musical & Dramatic Academy Inc. | 256 | — | 1 |
| AS46390US | NABNY245 - National Australia Bank Limited | 256 | — | 1 |
| AS7060US | EA - Electronic Arts, Inc. | 256 | — | 1 |
| AS1052US | COEUR-D-ALENE-TRIBE - Coeur d' Alene Tribe | 256 | 65.5K | 2 |
| AS54170US | NETACTUATE - NetActuate, Inc | 256 | — | 1 |
| AS400366US | FS846-ASN-01 - Freestyle Services LLC | 256 | 4.1K | 2 |
| AS46908US | COMVOZ-US - Comvoz Communication LLC | 256 | — | 1 |
| AS402810US | TDDT-NET - TDDT, | 256 | 1 | 2 |
| AS19851US | DOYLESTOWN-HOSPITAL - Doylestown Hospital | 256 | — | 1 |
| AS22715US | SALEM-INTERNET - Salem Internet, Inc. | 256 | 65.5K | 2 |
| AS397537US | MARINERS-GW - The Baseball Club of Seattle, LLLP | 256 | — | 1 |
| AS393566US | INFOGENIUS-INC - InfoGenius.com, Inc | 256 | — | 1 |