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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 512 |
| — |
| 2 |
| AS397964US | HYVE-MANAGED-HOSTING - Hyve Managed Hosting Corp Inc | 512 | 2 | 2 |
| AS13394US | SCHUYLKILL-INTERMEDIATE-UNIT-29 - SCHUYLKILL INTERMEDIATE UNIT 29 | 512 | — | 1 |
| AS31844US | HOLDBROTHERS - Tafferer Trading LLC | 512 | — | 2 |
| AS398985US | CITY-OF-ARVADA - City of Arvada | 512 | — | 2 |
| AS7034US | PHIREPHLY-DESIGN - PhirePhly Design | 512 | 2 | 4 |
| AS34553US | NATHANSALES - Packetframe | 512 | 2 | 4 |
| AS62540US | DRAKE-AS - Drake Holdings LLC | 512 | — | 2 |
| AS10595US | MAUSWERKS - Mauswerks, LLC. | 512 | 4.1K | 3 |
| AS396368US | TL-861 - TetherView LLC | 512 | — | 2 |
| AS36152US | DAKTRONICS-CORP-ASN-63-85-214-0 - Daktronics | 512 | 256 | 3 |
| AS22043US | STERIS - STERIS Corporation | 512 | — | 2 |
| AS40442US | ARCUSTECH - Arcustech, LLC | 512 | — | 2 |
| AS31823US | ITIVITI-USA - Itiviti USA, Inc. | 512 | — | 2 |
| AS54364US | RR - Rosen Research LLC | 512 | 16 | 3 |
| AS53846US | UNITI-FIBER-VOICE - Uniti Fiber Holdings Inc. | 512 | — | 2 |
| AS401998US | CIRRUS-EXT - Cirrus Guest Services | 512 | 4.4K | 4 |
| AS22266US | KNIGHT-INC - KNIGHT TRANSPORTATION | 512 | — | 2 |
| AS400042US | CRC-RITA-01 - Campus Research Corporation | 512 | 4.1K | 3 |
| AS6498US | INTRADO-CORP - West Technology Group, LLC | 512 | — | 2 |
| AS29864US | SPORTSMANS-WAREHOUSE - Sportsman's Warehouse, Inc. | 512 | — | 2 |
| AS398863US | WHITECAP - White Cap Construction Supply | 512 | — | 2 |
| AS63269US | BOOTBARN - Boot Barn Inc. | 512 | — | 2 |
| AS393236US | OCTANNER - O. C. TANNER COMPANY | 512 | — | 2 |
| AS402251US | BOLD-ROOSEV-HED - Apogee Telecom Inc. | 512 | — | 2 |
| AS16999US | WFSCORP - World Fuel Services Corporation | 512 | — | 2 |
| AS399036US | XIGENT-SOLUTIONS - Xigent Solutions, LLC | 512 | — | 2 |
| AS394647US | AS394647 - Crown Castle Fiber LLC | 512 | — | 1 |
| AS53572US | HNB - Hookers and Blow | 512 | — | 2 |
| AS21974US | FMIC - Frankenmuth Mutual Insurance Company | 512 | — | 2 |
| AS11902US | WORLD-LINK - World-Link Communications, Inc. | 512 | — | 2 |
| AS394653US | BHBT - Bar Harbor Bank & Trust | 512 | — | 2 |
| AS401763US | BLUEPULSENETWORKSLLC - Blue Pulse Networks LLC | 512 | 4.1K | 3 |
| AS39978US | REED-SMITH-ASN - REED SMITH LLP | 512 | — | 2 |
| AS30483US | TEXAS-GAS-TRANSMISSION - TEXAS GAS TRANSMISSION, LLC | 512 | — | 2 |
| AS20203US | FIRST-FINANCIAL-BANK-NA - First Financial Bank NA | 512 | — | 2 |
| AS395061US | SUNMARK - Sunmark Credit Union | 512 | — | 2 |
| AS32225US | MCGRAW-BCM - BCM One, Inc. | 512 | — | 2 |
| AS397273US | RENDER - Render | 512 | — | 2 |
| AS395701US | EPICGA-DC2-AS - Epic Games Inc. | 512 | — | 2 |
| AS40216US | DSTIP - DSTIP Networks LLC | 512 | 258 | 5 |
| AS25964US | HCBE-17 - Henry County Board of Education | 512 | — | 2 |
| AS46519US | LMI - Lantheus Medical Imaging, Inc. | 512 | — | 2 |
| AS54918US | INX-01 - Infor (US), Inc | 512 | — | 2 |
| AS395454US | KUKUI-NET1 - Kukui | 512 | — | 1 |
| AS15326US | HIGHERSPEED - Higherspeed Internet | 512 | 4.1K | 3 |
| AS40347US | EAUCLAIRE-COUNTY - Eau Claire County | 512 | — | 1 |