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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 |
| TTUNET - Texas Tech University |
| 82.4K |
| — |
| 4 |
| AS5939US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 82.4K | — | 4 |
| AS3377US | MCI-ASN - Verizon Business | 82.4K | — | 18 |
| AS2902US | WN-WY-AS - University of Wyoming | 82.4K | — | 4 |
| AS6189US | EPFL-AS - Enoch-Pratt Free Library | 82.2K | 65.5K | 4 |
| AS11131US | UMBC-AS - University of Maryland Baltimore County (UMBC) | 82.2K | 16 | 4 |
| AS7054US | MERCK - Merck and Co., Inc. | 82.2K | — | 42 |
| AS29873US | BIZLAND-SD - Newfold Digital, Inc. | 82.2K | 1 | 32 |
| AS12145US | COLORADOSTATEUNIV - Colorado State University | 82.2K | — | 3 |
| AS13476US | MSU-BOZEMAN - Montana State University | 82.2K | 65.5K | 26 |
| AS16922US | OUHSC-EDU - University of Oklahoma HSC | 82.2K | — | 5 |
| AS17327US | TSTC-AS - Texas State Technical College at Waco | 82.2K | — | 3 |
| AS53785US | UNC-GREENSBORO - University of North Carolina at Greensboro | 81.9K | — | 2 |
| AS13979US | ATT-IPFR - AT&T Enterprises, LLC | 81.9K | — | 2 |
| AS22164US | CCSD - Clark County School District | 81.9K | — | 2 |
| AS7774US | ALASKA - University of Alaska | 81.9K | 65.5K | 3 |
| AS11231US | GETTYSBURG-DOM - GETTYSBURG COLLEGE | 81.9K | — | 26 |
| AS15199US | WWU - Western Washington University | 81.9K | 1 | 3 |
| AS49US | US-NATIONAL-INSTITUTE-OF-STANDARDS-AND-TECHNOLOGY - National Institute of Standards and Technology | 81.7K | 2.1K | 36 |
| AS395662US | OZARKSGO - OzarksGo, LLC | 81.4K | 16.8M | 13 |
| AS6042US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 81.4K | — | 14 |
| AS5050US | PSC-EXT - Pittsburgh Supercomputing Center | 81.2K | 65.5K | 19 |
| AS13672US | FAIRPO-3 - Fidium | 81.2K | — | 44 |
| AS23465US | NUTELECOM - Nuvera | 81.2K | — | 37 |
| AS8025US | BRIGHTOK-AS - BrightNet Oklahoma | 80.6K | — | 22 |
| AS397380US | TEMPLE-HEALTH - Temple University Health System, Inc. | 80.4K | — | 17 |
| AS26375US | AIRESPRING - AIRESPRING, INC. | 80.1K | 65.6K | 243 |
| AS17166US | TRAVELERSPCAS - Travelers Property Casualty Corp. | 80.1K | — | 30 |
| AS33084US | DC-NET - DC-Net | 79.6K | 1 | 23 |
| AS62989US | IUP - Indiana University of Pennsylvania | 79.6K | 4.1K | 14 |
| AS1204US | SUNYNET-ASN-AS - The State University of New York | 79.4K | — | 29 |
| AS334US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | 79.1K | 256 | 47 |
| AS13US | DNIC-AS-00013 - Headquarters, USAISC | 79.1K | 1 | 8 |
| AS2US | UDEL-DCN - University of Delaware | 79.1K | — | 8 |
| AS18530US | ISOMEDIA-1 - Isomedia, Inc. | 79.1K | 65.5K | 85 |
| AS40934US | FORTINET - Fortinet Inc. | 79.1K | 6 | 307 |
| AS33724US | BIZNESSHOSTING-DBA-VOLICO - VOLICO | 78.3K | 81.9K | 76 |
| AS13684US | ASN-MEDTRONIC-1 - Medtronic, Incorporated | 78.3K | 5.1K | 30 |
| AS4473US | ATTIS-ASN4473 - AT&T Enterprises, LLC | 78.3K | — | 32 |
| AS693US | NOTRE-DAME-AS - University of Notre Dame | 78.3K | 128 | 5 |
| AS29866US | OPTICALTEL - OPTICALTEL | 78.1K | 16.8M | 101 |
| AS11711US | TULAROSA-COMMUNICATIONS - TULAROSA COMMUNICATIONS, INC. | 78.1K | 65.5K | 6 |
| AS19564US | LATECH - Louisiana Tech University | 77.8K | 256 | 4 |
| AS27370US | CITYOFBOSTON - City of Boston | 77.8K | — | 14 |
| AS7068US | PFIZERNET - Pfizer Inc. | 77.8K | — | 13 |
| AS46592US | TOMBIGBEECOMM-1 - Tombigbee Communications, LLC | 77.6K | — | 125 |
| AS62943US | AS62943-BLUEBIRD-NETWORK - Missouri Network Alliance, LLC | 77.3K | 135.2K | 95 |