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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 | 24,372 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| 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.
32,235 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 | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,275 |
| 65.5K |
| 4.1K |
| 2 |
| AS2768US | ERIE-COUNTY - The County of Erie | 65.5K | — | 1 |
| AS40112US | OPPD-AS - Omaha Public Power District | 65.5K | — | 1 |
| AS53604US | UAPB-AS - University of Arkansas at Pine Bluff | 65.5K | — | 1 |
| AS16430US | USM - University of Southern Mississippi | 65.5K | — | 2 |
| AS19106US | ANDREWS - Andrews University | 65.5K | 1 | 2 |
| AS398993US | PEG-TY - PEG TECH INC | 65.5K | — | 50 |
| AS10755US | DARTMOUTH-AS - Dartmouth College | 65.5K | 65.5K | 2 |
| AS29917US | KSC - University System of New Hampshire | 65.5K | — | 1 |
| AS7355US | MEITCA-AS - Mitsubishi Electric ITA (HSL) | 65.5K | — | 1 |
| AS22834US | BOSTONCOLLEGE - Boston College | 65.5K | 65.5K | 2 |
| AS46905US | UMASS-LOWELL - University of Massachusetts - Lowell | 65.5K | — | 1 |
| AS22828US | ASN-FDA - United States Food and Drug Administration | 65.5K | 16 | 2 |
| AS14706US | MBARI-MAIN - Monterey Bay Aquarium Research Institute | 65.5K | — | 1 |
| AS5661US | USF - UNIVERSITY OF SOUTH FLORIDA | 65.5K | 65.5K | 2 |
| AS401917US | SUNY-COBLESKILL - The State University of New York College of Agriculture and Technology at Cobleskill | 65.5K | — | 1 |
| AS6009US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 65.5K | 1 | 2 |
| AS18481US | BSWLHRICAS - BOCES Southern Westchester Lower Hudson Regional Information Center | 65.5K | — | 2 |
| AS18800US | SLCC - Salt Lake Community College | 65.5K | — | 1 |
| AS53449US | OEC-FIBER - OEC Fiber | 65.5K | 65.5K | 6 |
| AS30408US | ASUNET - Arkansas State University | 65.5K | — | 1 |
| AS394271US | SPS-157-246-0-0 - Springfield Public Schools | 65.5K | 1 | 2 |
| AS394003US | UMASSD - University of Massachusetts Dartmouth | 65.5K | — | 1 |
| AS398451US | RHIT - Rose-Hulman Institute of Technology, Inc | 65.5K | 1 | 2 |
| AS18844US | SHERWIN-AS - The Sherwin Williams Company | 65.5K | — | 1 |
| AS15337US | WRHARPER - Wm. Rainey Harper College | 65.5K | — | 1 |
| AS32501US | TUCSON-UNIFIED-SCHOOL-DISTRICT-1 - Tucson Unified School District #1 | 65.5K | — | 1 |
| AS53384US | UNCC-AS - University of North Carolina at Charlotte | 65.5K | 65.5K | 2 |
| AS393529US | VUMC - Vanderbilt University Medical Center | 65.5K | 1 | 2 |
| AS24US | AS24 - National Aeronautics and Space Administration | 65.5K | 1 | 2 |
| AS398757US | FTC-ASN - Federal Trade Commission | 65.5K | — | 1 |
| AS32417US | ELONU-AS - Elon University | 65.5K | — | 1 |
| AS22226US | SFUSD - San Francisco Unified School District | 65.5K | — | 1 |
| AS22178US | PA-SENATE - Senate of Pennsylvania | 65.5K | — | 1 |
| AS63102US | MESSA-AS - Michigan Education Special Services Association | 65.5K | — | 1 |
| AS17311US | ECMC-BGP - Erie County Medical Center | 65.5K | — | 1 |
| AS62810US | SUNY-ONEONTA - SUNY Oneonta | 65.5K | 65.5K | 2 |
| AS30703US | SHSC-1-AS - State University of New York, Health Science Center at Syracuse | 65.5K | — | 2 |
| AS402584US | MSUDENVER - Metropolitan | 65.5K | — | 1 |
| AS40245US | WAKE-FOREST-UNIVERSITY - Wake Forest University | 65.5K | — | 1 |
| AS22063US | JPGT-22063 - J. Paul Getty Trust | 65.5K | — | 1 |
| AS47090US | SCLHS-47090 - Intermountain Health Care, Inc. | 65.5K | — | 1 |
| AS54060US | POUDRESCHOOLDISTRICT - Poudre School District R-1 | 65.5K | — | 1 |
| AS22303US | NEWPALTZEDU - State University of New York at New Paltz | 65.5K | 1 | 2 |
| AS33170US | MORGAN-STATE-UNIVERSITY - Morgan State University | 65.5K | — | 1 |
| AS27219US | SUNY-CORTLAND - SUNY College at Cortland | 65.5K | — | 1 |
| AS5264US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 65.5K | — | 1 |