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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
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) | 227.7M | 3,136 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.5M | 20,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 73.1M | 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC |
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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 68.2M |
| 345 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 66.4M | 1,107 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 47.9M | 3,573 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,926 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.2M | 4,508 |
| 134.1K |
| — |
| 11 |
| AS20478US | GENMILLS - General Mills, Inc. | 133.9K | — | 11 |
| AS111US | BOSTONU-AS - Boston University | 133.9K | 1M | 12 |
| AS368US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 133.9K | 256 | 8 |
| AS9US | CMU-ROUTER - Carnegie Mellon University | 133.6K | 65.5K | 9 |
| AS329US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 133.6K | 256 | 13 |
| AS345US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 133.6K | 256 | 13 |
| AS50US | ORNL-MSRNET - Oak Ridge National Laboratory | 133.6K | 16 | 11 |
| AS427US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 133.4K | — | 7 |
| AS27257US | WEBAIR-INTERNET - Webair Internet Development Company Inc. | 133.4K | 65.5K | 83 |
| AS29842US | ETSU-NET - East Tennessee State University | 133.1K | — | 9 |
| AS7859US | PAIR-NETWORKS - pair Networks | 133.1K | 131.1K | 9 |
| AS22527US | 22527 - Safeway, Inc. | 133.1K | — | 10 |
| AS89US | DNIC-AS-00089 - Navy Network Information Center (NNIC) | 133.1K | — | 6 |
| AS14241US | ONE-AS - Oakland Schools | 133.1K | — | 11 |
| AS13809US | UAMS-ASN - University of Arkansas for Medical Sciences | 132.9K | — | 5 |
| AS54489US | CORESPACE-DAL - CoreSpace, Inc. | 132.9K | 65.5K | 10 |
| AS18564US | SJU149068 - St. John's University, New York | 132.6K | — | 9 |
| AS12099US | OAKWOOD-HEALTHCARE - OAKWOOD HEALTHCARE INC | 132.6K | — | 7 |
| AS54885US | STATE-OF-IDAHO-SECONDARY-ASN - State of Idaho | 132.4K | 1M | 13 |
| AS1970US | TAMUS-NET - Texas A&M University | 132.4K | 131.3K | 13 |
| AS6200US | UIC-AS - University of Illinois Chicago | 132.4K | 1 | 7 |
| AS3562US | SNLL-NET-AS - Sandia National Laboratories | 132.4K | 4.1K | 9 |
| AS6106US | UCR-EDU - University of California, Riverside | 132.4K | 65.5K | 6 |
| AS2025US | UTOLEDO - University of Toledo | 132.4K | — | 6 |
| AS14799US | EXP-EC2000 - Experian | 132.4K | — | 8 |
| AS22847US | BOWDOIN - Bowdoin College | 132.4K | 18 | 8 |
| AS13506US | US-DEPARTMENT-OF-THE-TREASURY - United States Department of the Treasury | 132.1K | 512 | 8 |
| AS14822US | MSKCC - Memorial Sloan-Kettering Cancer Center | 132.1K | — | 7 |
| AS53585US | NYSIF - The State Insurance Fund | 132.1K | — | 7 |
| AS53828US | NITEL - NETWORK INNOVATIONS, LLC | 132.1K | 65.5K | 21 |
| AS7764US | CENSUSBUREAU - National Oceanic and Atmospheric Administration | 132.1K | 1.1K | 13 |
| AS11872US | SYRACUSE-UNIVERSITY - Syracuse University | 132.1K | 1 | 10 |
| AS29US | YALE-AS - Yale University | 132.1K | 65.5K | 7 |
| AS398537US | KUTZTOWN-01 - Kutztown University | 132.1K | 6.1K | 8 |
| AS341US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 132.1K | 256 | 7 |
| AS131US | UCSB-NET-AS - University of California, Santa Barbara | 132.1K | 65.5K | 6 |
| AS1556US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 132.1K | — | 5 |
| AS10370US | NORTHWEST-AIRLINES - Northwest Airlines | 131.8K | — | 5 |
| AS398564US | EUP-SCOTS-NET - Pennsylvania Western University | 131.8K | 4.1K | 14 |
| AS2013US | PACIFIC-GAS - PG&E | 131.8K | — | 5 |
| AS20337US | SUNYPOLY-ASN - SUNY Institute of Technology | 131.8K | — | 5 |
| AS32666US | CWRU-AS-1 - Case Western Reserve University | 131.8K | 65.5K | 21 |
| AS19899US | MDC-EDU - Miami Dade College | 131.6K | — | 5 |
| AS13748US | CSHL - Cold Spring Harbor Laboratory | 131.6K | — | 5 |
| AS398663US | SHIPPENSBURG-UNIVERSITY-01 - Shippensburg University | 131.6K | 6.1K | 6 |
| AS63319US | FDU - Fairleigh Dickinson University | 131.6K | — | 4 |