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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 | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,143 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 | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| GUNET - Gonzaga University |
| 65.5K |
| — |
| 1 |
| AS3777US | HAVERFORD - Haverford College | 65.5K | — | 1 |
| AS398757US | FTC-ASN - Federal Trade Commission | 65.5K | — | 1 |
| AS40127US | LMANET - Longwood Medical and Academic Area (LMA) | 65.5K | 65.5K | 2 |
| AS46662US | BSU-AS - Boise State University | 65.5K | — | 1 |
| AS13748US | CSHL - Cold Spring Harbor Laboratory | 65.5K | — | 1 |
| AS5376US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | 65.5K | 1 | 2 |
| AS4597US | MILLIPORE - Millipore Corp. | 65.5K | 1 | 2 |
| AS32243US | ATI-ASN - ATI | 65.5K | — | 1 |
| AS32125US | WHEATON-COLLEGE - Wheaton College | 65.5K | — | 1 |
| AS401974US | VVUSD-157-233 - Val Verde Unified School District | 65.5K | — | 1 |
| AS1983US | BERNALILLO - Bernalillo County | 65.5K | — | 1 |
| AS46543US | UMB - University of Maryland, Baltimore | 65.5K | — | 1 |
| AS5656US | ACCESSUS-DOM - accessU.S./BASENet | 65.5K | — | 5 |
| AS6056US | COLBY - Colby College | 65.5K | — | 1 |
| AS63102US | MESSA-AS - Michigan Education Special Services Association | 65.5K | — | 1 |
| AS14706US | MBARI-MAIN - Monterey Bay Aquarium Research Institute | 65.5K | — | 1 |
| AS22834US | BOSTONCOLLEGE - Boston College | 65.5K | 65.5K | 2 |
| AS395871US | SUNY-COLLEGE-AT-PLATTSBURGH - SUNY College at Plattsburgh | 65.5K | — | 1 |
| AS398086US | SUNY-MORRISVILLE - SUNY Morrisville | 65.5K | — | 1 |
| AS11482US | CANISIUS-COLLEGE - Canisius College | 65.5K | — | 1 |
| AS33170US | MORGAN-STATE-UNIVERSITY - Morgan State University | 65.5K | — | 1 |
| AS7355US | MEITCA-AS - Mitsubishi Electric ITA (HSL) | 65.5K | — | 1 |
| AS18553US | UWF-ASN - University of West Florida | 65.5K | — | 1 |
| AS2532US | LOC - Library of Congress | 65.5K | — | 1 |
| AS47090US | SCLHS-47090 - Intermountain Health Care, Inc. | 65.5K | — | 1 |
| AS36704US | CSM-AS - Colorado School of Mines | 65.5K | — | 1 |
| AS36091US | SCAQMD-ASN - South Coast Air Quality Management District | 65.5K | — | 1 |
| AS2640US | AMESLAB-AS - Ames Laboratory | 65.5K | 1 | 2 |
| AS396425US | UCCS-UNIVERSITY-OF-COLORADO-COLORADO-SPRINGS - University of Colorado, Colorado Springs | 65.5K | — | 1 |
| AS54216US | GORE-NETWORK - W. L. Gore & Associates, Inc. | 65.5K | — | 1 |
| AS31848US | DVUSD - Deer Valley Unified School District #97 | 65.5K | — | 1 |
| AS3795US | BRYNMAWR - Bryn Mawr College | 65.5K | — | 1 |
| AS10448US | VILLANOVA-UNIV - Villanova University | 65.5K | — | 1 |
| AS14433US | SUNY-OSWEGO-ASN - State University of New York - Oswego | 65.5K | — | 1 |
| AS33434US | HAMILTON-COLLEGE - Hamilton College | 65.5K | — | 1 |
| AS29917US | KSC - University System of New Hampshire | 65.5K | — | 1 |
| AS22245US | WICHITA-STATE-U - Wichita State University | 65.5K | — | 1 |
| AS6150US | NCIFCRF - National Cancer Institute | 65.5K | — | 1 |
| AS27405US | PSC - University System of New Hampshire | 65.5K | — | 1 |
| AS27616US | AS-NEWSCHOOL - The New School | 65.5K | — | 1 |
| AS32417US | ELONU-AS - Elon University | 65.5K | — | 1 |
| AS33703US | HOFSTRA-UNIVERSITY - Hofstra University | 65.5K | 16 | 3 |
| AS402584US | MSUDENVER - Metropolitan | 65.5K | — | 1 |
| AS10631US | GSU10631 - Georgia State University | 65.5K | — | 1 |
| AS22178US | PA-SENATE - Senate of Pennsylvania | 65.5K | — | 1 |
| AS22063US | JPGT-22063 - J. Paul Getty Trust | 65.5K | — | 1 |