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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 |
| 12.3K |
| 16 |
| 3 |
| AS19689US | MST-AS - Nuvisions | 12.3K | — | 3 |
| AS22919US | PCCNET - Portland Community College | 12.3K | — | 2 |
| AS29804US | VALU-NET - Valu-Net LLC. | 12.3K | 65.5K | 13 |
| AS10947US | WERCS-NET - Mountain West Technologies Corporation | 12K | 65.5K | 18 |
| AS395719US | EMERALD - Emerald Broadband, LLC | 12K | 65.5K | 11 |
| AS18683US | MWFN - Midwest Fiber Networks, LLC | 12K | 65.5K | 6 |
| AS33545US | BARDCOLLEGE - Bard College | 12K | 256 | 10 |
| AS23431US | AHSW-ROSEVILLE - Adventist | 12K | — | 9 |
| AS11280US | SNAPPYDSL-ASN1 - SNAPPYDSL.NET | 12K | — | 9 |
| AS19212US | PRTC-LAURENS - Piedmont Rural Telephone Cooperative, Incorporated | 12K | 65.5K | 48 |
| AS13709US | CUMULUS-MEDIA-INC - Cumulus Media, Inc. | 12K | — | 16 |
| AS8159US | KANSASNET - KansasNet / Fox Business Systems | 12K | — | 10 |
| AS33211US | RISINGNET - RisingNet, LLC | 12K | 65.5K | 25 |
| AS6233US | XTOM - xTom | 12K | 65.6K | 84 |
| AS4556US | PACKETFABRIC-AS4556 - PacketFabric, Inc. | 12K | 65.5K | 48 |
| AS18886US | INLINE-NET - Uniti Fiber Holdings Inc. | 12K | — | 10 |
| AS14971US | PINETEL - Pine Telephone System, Inc. | 12K | — | 6 |
| AS19881US | VTCNET - Valley Telecommunications Company | 12K | — | 23 |
| AS23496US | CAMBIAHEALTH - Cambia Health Solutions, Inc. | 12K | — | 16 |
| AS36137US | PEG-FR - PEG TECH INC | 12K | — | 17 |
| AS32440US | LONI - Louisiana Board of Regents/Louisiana Optical Network Initiative (LONI) | 12K | 256 | 32 |
| AS395831US | MERAKI - Meraki LLC | 11.8K | 10 | 52 |
| AS32016US | INTEGRA-WCI - Allstream Business US, LLC | 11.8K | — | 8 |
| AS19084US | COLOUP - ColoUp | 11.8K | — | 46 |
| AS17077US | BROADCAST-NETWORKS - Broadcast Networks, LLC. | 11.8K | 65.5K | 14 |
| AS395301US | RESOUND-NET - Resound Networks, LLC | 11.8K | 14 | 55 |
| AS398391US | PERIMETER-81-LLC - Perimeter 81 LLC | 11.8K | — | 46 |
| AS26721US | INYO - Inyo Networks | 11.8K | 65.5K | 22 |
| AS21808US | PRLSS - Peerless Network Inc | 11.8K | 65.5K | 20 |
| AS14626US | COLUMBIA-HCA - Columbia/HCA Healthcare, Inc. | 11.8K | — | 44 |
| AS14938US | BET-AS - Bullseye Telecom | 11.8K | — | 46 |
| AS20273US | WEBSTER-CALHOUN-ASN - WCCTA | 11.8K | 131.1K | 38 |
| AS394453US | ITO-DG - Ensono LP | 11.8K | — | 10 |
| AS35937US | DATABANK-MARQUISNET - MarquisNet | 11.8K | 1 | 9 |
| AS20030US | MCCLI-ARTELCO - Artelco | 11.8K | — | 19 |
| AS398844US | COMELEC-DUB-01 - COMELEC SERVICES, INC | 11.8K | — | 8 |
| AS35487US | MISAKA Misaka Network, Inc. | 11.8K | 135.5K | 69 |
| AS14858US | HISNET - Hanson Information Systems, Inc. / Family Net | 11.8K | 65.6K | 40 |
| AS394195US | CLEARNETWORX - Clearnetworx | 11.8K | 65.5K | 41 |
| AS18851US | ICORE-ASN-1 - iCore Networks, Inc. | 11.8K | — | 7 |
| AS63009US | FIBERCASTNET - Fibercast Corporation | 11.8K | — | 10 |
| AS62682US | HILLBILLY-WIRELESS - Hillbilly Wireless INC. | 11.8K | — | 25 |
| AS17143US | WINNTELECOM - Winn Telecom | 11.8K | 65.5K | 9 |
| AS399693US | NCN-AS - Northwest Communications | 11.8K | 2.3K | 29 |
| AS2015US | MSEN-SYSTEM - Msen, Inc. | 11.8K | — | 8 |
| AS26960US | MICHELIN-NORTH-AMERICA-I1 - MICHELIN NORTH AMERICA | 11.8K | — | 15 |