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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 512 |
| — |
| 2 |
| AS13554US | TPS-TX-AS - Tenaska Power Services, Co. | 512 | — | 2 |
| AS394137US | SCUHS - Southern California University of Health Sciences | 512 | — | 1 |
| AS32692US | CHAMINADEUNIV-01 - Chaminade University of Honolulu | 512 | — | 2 |
| AS14337US | CVMIN-AS1 - CVM, INC | 512 | — | 2 |
| AS36765US | WLKY-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS395135US | BTI-COMMUNICATIONS - BTI Communications | 512 | — | 1 |
| AS395617US | PLYMOUTH - Plymouth Poultry Company | 512 | — | 2 |
| AS393878US | EPIC-HOSTING-2 - Epic Hosting, LLC | 512 | — | 1 |
| AS393512US | AGC-NW - AGC Networks Inc | 512 | — | 2 |
| AS21801US | JEWELERS - Jewelers Mutual Insurance Company | 512 | — | 2 |
| AS394301US | DEXCOM-INC - Dexcom, INC. | 512 | — | 2 |
| AS22066US | CITY-OF-EAU-CLAIRE - City of Eau Claire | 512 | — | 1 |
| AS29884US | EQUINIX-EC-DA - Equinix, Inc. | 512 | 1 | 3 |
| AS32504US | INTELLETRACE - Intelletrace | 512 | 1 | 3 |
| AS395007US | ROCKETCOMM - Rocket Communications Corp. | 512 | — | 2 |
| AS395971US | QUESTSOFTWARE - Quest Software Inc | 512 | — | 2 |
| AS399288US | WEATHERTAP - WEATHERTAP INCORPORATED | 512 | — | 2 |
| AS62756US | DOTBLOCK-2 - HostRocket.com, Inc. | 512 | 256 | 2 |
| AS15126US | SMAI - Suzuki Marine USA, LLC | 512 | — | 2 |
| AS396299US | THE-IMAGINE-GROUP - The IMAGINE Group, LLC | 512 | — | 2 |
| AS19636US | FORMFACTOR - FORMFACTOR, INC | 512 | — | 1 |
| AS11428US | BEAM-GLOBAL - Jim Beam Brands Co. | 512 | — | 2 |
| AS11145US | VRIS-11145-11149 - Verizon Business | 512 | — | 1 |
| AS401503US | MERIDIAN-C-ATL1 - Meridian Cooperative, Inc. | 512 | — | 2 |
| AS54128US | POKEMON-BELLEVUE - The Pokemon Company International, Inc. | 512 | — | 2 |
| AS26761US | CMAL-ECOM - Designs Apparel, Inc. | 512 | — | 2 |
| AS33016US | SMFE-BB - Payward, Inc. | 512 | — | 2 |
| AS53393US | LGCNS-AS2 - LG CNS America Inc. | 512 | — | 2 |
| AS14932US | ISC - C1CX | 512 | — | 2 |
| AS40120US | SE-BR-AS-01 - TAC Americas, Inc. | 512 | — | 1 |
| AS22840US | ATC-IP-LLC - ATC IP LLC | 512 | — | 2 |
| AS6304US | STAIRWELL - Stairwell, Inc | 512 | 256 | 3 |
| AS6006US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS15266US | THE-TEAM-COMPANIES - Cast & Crew LLC | 512 | — | 2 |
| AS17031US | WINSTON-SALEM-SCHOOLS - Winston-Salem/Forsyth County Schools | 512 | — | 1 |
| AS202540US | CDSTEPHENS Christopher Stephens | 512 | 6 | 7 |
| AS11294US | SHUTTERFLY-LLC - Shutterfly, LLC | 512 | — | 1 |
| AS399330US | CASCADE-INET-01 - Cascade Corporation | 512 | — | 2 |
| AS55057US | CHI-ILAG - Office of the Illinois Attorney General | 512 | — | 2 |
| AS399392US | FIREDOG-AS399392 - FIRE DOG SSC, LLC | 512 | 4.1K | 3 |
| AS53542US | MESNET - MERCHANT ESOLUTIONS, INC. | 512 | — | 2 |
| AS398109US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 512 | 2 | 4 |
| AS40096US | HPS-51-ASN - High Point Solutions, Inc. | 512 | — | 1 |
| AS201834US | SupplyFrame Supply Frame, Inc. | 512 | — | 2 |
| AS33555US | STONEMARCHE - Stonemarche Network CoOp. | 512 | — | 2 |
| AS401229US | STAPLES-EQUINIX-CENTRAL - Staples, Inc | 512 | — | 2 |