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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) | 227.7M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| 79.6K |
| 6.1K |
| 15 |
| 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 |
| AS13684US | ASN-MEDTRONIC-1 - Medtronic, Incorporated | 79.1K | 5.1K | 30 |
| AS13US | DNIC-AS-00013 - Headquarters, USAISC | 79.1K | 1 | 8 |
| AS4213US | EVOCATIVE-GLOBAL - Krypt Technologies | 78.8K | 165.9K | 127 |
| AS29866US | OPTICALTEL - OPTICALTEL | 78.8K | 16.8M | 104 |
| AS3810US | VWMX-AS - Volkswagen Group of America, Inc. | 78.6K | — | 19 |
| AS11749US | MPINET - MPInet | 78.3K | — | 167 |
| AS4473US | ATTIS-ASN4473 - AT&T Enterprises, LLC | 78.3K | — | 32 |
| AS2US | UDEL-DCN - University of Delaware | 78.3K | — | 6 |
| AS7068US | PFIZERNET - Pfizer Inc. | 78.3K | — | 14 |
| AS693US | NOTRE-DAME-AS - University of Notre Dame | 78.3K | 128 | 5 |
| AS14169US | VMI-ASN - Virginia Military Institute | 78.1K | — | 4 |
| 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 |
| AS40509US | FLY - Fly.io, Inc. | 77.6K | 69 | 264 |
| AS40317US | PEOPLESCOMMUNICATIONS - Peoples Communications Inc. | 77.6K | 65.5K | 69 |
| AS62943US | AS62943-BLUEBIRD-NETWORK - Missouri Network Alliance, LLC | 77.3K | 135.2K | 95 |
| AS15147US | DHSINETNOC - DEPARTMENT OF HOMELAND SECURITY | 77.3K | 65.5K | 22 |
| AS10806US | AFP-NET - AGENCE FRANCE PRESSE | 77.1K | — | 17 |
| AS30041US | RACE - Race Tech, LLC | 76.5K | 1.1M | 299 |
| AS63099US | MADEALA TELECOM TECHNOLOGY - MADEALA TELECOM TECHNOLOGY INC | 76.5K | — | 235 |
| AS396269US | BPL-ASN - Buckeye Partners L.P. | 76.5K | — | 11 |
| AS23404US | RITTERNET - Ritter Communications | 76.5K | 66K | 92 |
| AS85US | AERO-NET - The Aerospace Corporation | 76.3K | 16 | 16 |
| AS3709US | NET-CITY-SA - City of San Antonio | 75.8K | — | 37 |
| AS61317US | ASDETUK Hivelocity LLC | 75.8K | 1.3K | 257 |
| AS46564US | NORDST-AS - Nordstrom, Inc. | 75.8K | — | 3 |
| AS46158US | OCMBOCES - OCM BOCES | 75.8K | — | 32 |
| AS12226US | AS12226 - CIBC World Markets | 75.8K | — | 10 |
| AS5839US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 75.5K | — | 50 |
| AS2033US | PANIX - Panix | 75.3K | 4.1K | 11 |
| AS17049US | MBO-NET - MBO Video, LLC | 75.3K | 65.5K | 73 |
| AS3926US | FFX-CNTY - Fairfax County Dept of Information Technology | 75.3K | — | 8 |
| AS40581US | AREON-AS - Arkansas Research and Education Optical Network | 75K | 65.5K | 19 |
| AS264US | SRINET-AS - SRI International | 75K | — | 37 |
| AS63139US | BEDGE-CO-LIMITED - BEDGE CO LIMITED | 75K | 53 | 330 |
| AS4511US | MIAMI-EDU - University of Miami | 75K | — | 7 |
| AS4195US | SHAW - D. E. Shaw & Co. LP | 75K | — | 21 |
| AS14523US | GEA-CONNECT - Greeneville Energy Authority | 74.8K | 65.5K | 6 |
| AS393601US | SMOA-STATEOFMISSOURI-01 - State of Missouri Office of Administration | 74.8K | 65.6K | 7 |
| AS6364US | ATLANTIC-NET-1 - Atlantic.net, Inc. | 74.8K | 288 | 112 |
| AS13433US | COXNET - Cox Enterprises Inc | 74.5K | 65.5K | 11 |
| AS40545US | EMPIRE-40545 - Empire Access | 74.5K | 65.5K | 15 |
| AS14127US | ILAND - Iland Internet Solutions Corporation | 74.5K | — | 259 |