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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. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| — |
| 1 |
| AS14847US | PECKSERVERS-LLC-IP-ROUTING - Peck Servers, LLC | 256 | 256 | 2 |
| AS400638US | BSOFTTECH-NET - Bsoft Technology & Computer Services LLC | 256 | — | 1 |
| AS395854US | SIMNA-64643 - Schroder Investment Management North America Inc. | 256 | — | 1 |
| AS394532US | INAZMA - TECPRESSO INC. | 256 | — | 1 |
| AS13362US | GENERAL-RESEARCH - General Research Laboratories, LLC | 256 | 4 | 5 |
| AS402094US | SRJK-DFW-01 - SRJK LLC | 256 | 256 | 2 |
| AS397777US | TORANI-AS - Torani | 256 | — | 1 |
| AS29790US | NEW-LIBERTY-HOSPITAL - New Liberty Hospital District of Clay County, Missouri | 256 | — | 1 |
| AS398426US | APOG-RIPON - Apogee Telecom Inc. | 256 | — | 1 |
| AS36260US | MISAKA-BIZNET-AS - Misaka Network, Inc. | 256 | — | 1 |
| AS16881US | DAVID-C-PRALL-INTERNET - Prall, Inc., David C | 256 | 1 | 2 |
| AS20391US | PRGPARKING-DOMAIN - The Parking Spot | 256 | — | 1 |
| AS30618US | LEEUNIV - Lee University | 256 | — | 1 |
| AS396452US | LOUDOUN-WATER - Loudoun Water | 256 | — | 1 |
| AS397619US | CURTIS - Curtis, Mallet-Prevost, Colt & Mosle, LLP | 256 | — | 1 |
| AS400903US | IND-COLO-01 - Genesys Cloud | 256 | 1 | 2 |
| AS402115US | TSC-AS - Tallahassee State College | 256 | — | 1 |
| AS206885US | TECH9COMPUTERS Tech9 Computer Solutions | 256 | 4 | 5 |
| AS398402US | TROPICAL01 - TROPICAL SHIPPING USA, LLC | 256 | — | 1 |
| AS398828US | MHC-MAIN-AZ - Marana Health Center, INC | 256 | — | 1 |
| AS397414US | KRMC-01 - Kearney Regional Medical Center LLC | 256 | — | 1 |
| AS397289US | PARKER-UNIVERSITY - Parker University | 256 | — | 1 |
| AS393353US | ACUFCU - America's Credit Union | 256 | — | 1 |
| AS397813US | CLARKE-MULTIHOME-IP-BLOCK - Clarke Broadcasting Corporation | 256 | — | 1 |
| AS397244US | TACKITT-NETWORKS - Tackitt, Inc. | 256 | 1 | 2 |
| AS3730US | AQUINA-001 - Aquinas College | 256 | — | 1 |
| AS20123US | NOS-NOG2 - NOS Network Operations Group | 256 | — | 1 |
| AS54737US | LINDTUS - Lindt & Sprungli (USA), Inc. | 256 | — | 1 |
| AS395836US | ALL-STATES-AG-PARTS - All States Ag Parts, Inc | 256 | — | 1 |
| AS401484US | ASTERALABS - Astera Labs | 256 | — | 1 |
| AS394627US | ASN-UCC - United Conveyor Corporation | 256 | — | 1 |
| AS394124US | SHOESHOW-AS-1 - SHOE SHOW Inc. | 256 | 4.1K | 2 |
| AS11438US | LEMANS-1 - LeMans Corporation | 256 | — | 1 |
| AS398066US | AASHTONET - AASHTO | 256 | — | 1 |
| AS393945US | ENPT-I-15 - enfoPoint, LLC | 256 | 65.5K | 3 |
| AS400924US | MACPAPERS-ASN-01 - Mac Papers, LLC | 256 | — | 1 |
| AS400147US | CITY-OF-MODESTO-01-ASN - City of Modesto | 256 | — | 1 |
| AS402249US | BOLD-UWM-HED - Apogee Telecom Inc. | 256 | — | 1 |
| AS401624US | OMNISSA-BLR - Omnissa, LLC | 256 | 1 | 2 |
| AS63011US | RCG-ASN - RIMKUS CONSULTING GROUP, INC | 256 | — | 1 |
| AS396500US | MINAKILABS-AS01 - MinakiLabs | 256 | 4.1K | 2 |
| AS397762US | US-INSIDEPLASTICS-1 - Laird Plastics, Inc. | 256 | — | 1 |
| AS12058US | HOTELS-LON - EXPEDIA, INC | 256 | — | 1 |
| AS402186US | SERO - SeroWeb LLC | 256 | — | 1 |
| AS22142US | FISERV-EPF-CHANDLER - Fiserv Solutions, LLC | 256 | 3 | 3 |
| AS35965US | EDNPC-ORG-1 - Electrical District No.3 of Pinal County | 256 | — | 1 |