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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| — |
| — |
| 0 |
| AS15386US | IPBNB IPbnb LLC | — | — | 0 |
| AS16459US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16516US | CAREMORE - Elevance Health, Inc. | — | — | 0 |
| AS16726US | ROCHE-NUTLEY - Hoffmann LaRoche, Inc. | — | — | 0 |
| AS16727US | WOW-INTERNET - WideOpenWest Finance LLC | — | — | 0 |
| AS16792US | VWNA-AS1 - Volkswagen Group of America, Inc. | — | — | 0 |
| AS16820US | FREEBORN - Freeborn & Peters | — | — | 0 |
| AS16966US | SBCIDC-LSAN03 - AT&T Enterprises, LLC | — | — | 0 |
| AS17020US | DXC-AS17020 - DXC US Latin America Corporation | — | — | 0 |
| AS17021US | UNXCOM1 - Unx, LLC | — | — | 0 |
| AS17113US | AS-TIERP-17113 - TierPoint, LLC | — | — | 0 |
| AS17227US | ATT-CERFNET-BLOCK - AT&T Enterprises, LLC | — | — | 0 |
| AS17239US | HIGHSPEEDWEB-ACCESS - High Speed Web/Genesis 2 Networks | — | — | 0 |
| AS17246US | RCI - RCI Broadband | — | — | 0 |
| AS17370US | MCAFEE-COM - McAfee, LLC | — | — | 0 |
| AS17396US | TL5-1 - Gorrell's Computer Services, Inc. | — | — | 0 |
| AS18575US | GEEKS - ipHouse | — | — | 0 |
| AS18582US | CONSUMERINFO - Consumerinfo.com, Inc. | — | — | 0 |
| AS18611US | ATRION - Carousel Industries of North America, LLC | — | — | 0 |
| AS18642US | SAGENET-ENT2 - SageNet LLC | — | — | 0 |
| AS18648US | HTRI - Heat Transfer Research, Inc. | — | — | 0 |
| AS18650US | KORAX - HostPapa | — | — | 0 |
| AS18755US | ASPECT-SERVICE - Aspect Software, Inc. | — | — | 0 |
| AS18770US | PHJW-LLP - Paul, Hastings, Janofsky & Walker LLP | — | — | 0 |
| AS18845US | CASTLEGEM - Castlegem Inc. | — | — | 0 |
| AS18877US | SAILTHRU-01 - Sailthru, INC | — | — | 0 |
| AS18946US | FANNIEMAE-2 - Fannie Mae | — | — | 0 |
| AS19025US | XO-ASN12 - Verizon Business | — | — | 0 |
| AS19035US | HIX - Hawaii Internet Exchange | — | — | 0 |
| AS19066US | WIREDTREE - Liquid Web, L.L.C | — | — | 0 |
| AS19130US | DOCKNET - Aerioconnect | — | — | 0 |
| AS19304US | GEORGETOWN-COLLEGE - Georgetown College | — | — | 0 |
| AS19327US | BBO-2 - BroadbandONE, LLC | — | — | 0 |
| AS19414US | RHODEISLAND-IX - Irontrust Networks | — | — | 0 |
| AS19485US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19505US | STARWOODVO-OOC - Starwood Vacation Ownership | — | — | 0 |
| AS19508US | AZ TECHNOLOGY OF AMERICA - Allianz Technology of America, Inc. | — | — | 0 |
| AS19547US | ICOMMERCE - iCommerce, Inc. | — | — | 0 |
| AS19560US | GWHA - GW Hannaway & Associates | — | — | 0 |
| AS19598US | AS19598 - Ontario Datacenter LLC | — | — | 0 |
| AS19644US | WANLINK-OPEN - The Liberty Hampshire Company, LLC | — | — | 0 |
| AS19654US | BBO-3 - BroadbandONE, LLC | — | — | 0 |
| AS19703US | VALUELINE - Value Line Publishing Inc. | — | — | 0 |
| AS19837US | 206-208-88-0 - BUILDERS FIRSTSOURCE, INC. | — | — | 0 |
| AS19882US | AS-LL - Acuity Brands, Inc. | — | — | 0 |
| AS19892US | HUBERTASN - HUBERT COMPANY, LLC | — | — | 0 |