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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,110 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,246 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,954 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,419 |
| — |
| — |
| 0 |
| AS62542US | VMW-SEA3-COLO - Avago Technologies U.S. Inc. | — | — | 0 |
| AS62684US | XLBROADBAND - Bertram Communications LLC | — | — | 0 |
| AS62753US | SCA-SD - Sony Pictures Technologies Inc. | — | — | 0 |
| AS62781US | SECURITYCOMPASS - Security Compass | — | — | 0 |
| AS62786US | MIMOSA - Mimosa Networks, Inc. | — | — | 0 |
| AS62788US | AMBIENTHLLC - Ambivalent Enthusiast LLC | — | — | 0 |
| AS62818US | SST-59 - Pinpoint Communications, Inc. | — | — | 0 |
| AS62835US | XRS-AS02 - XRS Corporation | — | — | 0 |
| AS62838US | REPRISE-HOSTING - Reprise Hosting | — | — | 0 |
| AS62859US | QTTECHEXT - QT Technologies | — | — | 0 |
| AS62869US | BUFFALO-SM - Buffalo Studios | — | — | 0 |
| AS62878US | QUADRANET-TRANSIT - QuadraNet Enterprises LLC | — | — | 0 |
| AS63121US | CP-IX - Cloud Propeller | — | — | 0 |
| AS63162US | CTG-01 - Computer Technologies Group, Inc | — | — | 0 |
| AS63211US | NCL-SMY - Norwegian Cruise Line Holdings Ltd. | — | — | 0 |
| AS63223US | LPS-11 - Black Knight IP Holding Company, LLC | — | — | 0 |
| AS63228US | QUICKPACKET-2 - QuickPacket, LLC | — | — | 0 |
| AS63292US | CIX - DC74 LLC | — | — | 0 |
| AS63367US | KELINCOM-2 - Kellin Communications | — | — | 0 |
| AS63381US | AS63381 - Crown Castle Fiber LLC | — | — | 0 |
| AS64206US | PNW - PNW Security | — | — | 0 |
| AS64215US | MEGAPORTUSAINC-SFOIX-US - Megaport (USA) Inc. | — | — | 0 |
| AS64270US | PACIFICRACK - QuadraNet Enterprises LLC | — | — | 0 |
| AS64271US | RIXCLOUD-INC - rixCloud | — | — | 0 |
| AS132084US | NCII-AS-AP - NTT Cloud Infrastructure Inc | — | — | 0 |
| AS132802US | EAAPPL-AS-AP - Electronic Arts Inc. | — | — | 0 |
| AS197139US | T-MAN-AS T-Man Software LLC | — | — | 0 |
| AS199299US | FREEFOXCONNECT FST Networks LTD | — | — | 0 |
| AS200243US | PRIVOXY-AS PRIVOXY SOLUTIONS, LLC | — | — | 0 |
| AS201214US | GAVINNET Gavin John | — | — | 0 |
| AS205880US | Hytron Hytron Network Services (US) LLC | — | — | 0 |
| AS206719US | Slipstream IT Answers LLC | — | — | 0 |
| AS206916US | SOUTHWEST-NET Southwest Network Corporation | — | — | 0 |
| AS208459US | AZ-Intl AZ International L.L.C. | — | — | 0 |
| AS210527US | ONEGIG 1gb LLC | — | — | 0 |
| AS211561US | ULTRA ULTRA PACKET LLC | — | — | 0 |
| AS213351US | SingFai Sing Fai Technology Inc | — | — | 0 |
| AS214370US | AS-MEHARBE meharbe networks, llc | — | — | 0 |
| AS214472US | STORMINDUSTRIES Offshore LC | — | — | 0 |
| AS215281US | NORTHEASTHOST Northeast Hosting LLC | — | — | 0 |
| AS393250US | BHN-393250-NA - Charter Communications, Inc | — | — | 0 |
| AS393252US | MCCARTHY-HOLDINGS-INC - McCarthy Holdings Inc. | — | — | 0 |
| AS393261US | RN-ASN-BIL - Right Networks, LLC | — | — | 0 |
| AS393328US | ARAMARK-EQX-WEST - ARAMARK | — | — | 0 |
| AS393411US | APOG-WASHINGTON-COLLEGE - Apogee Telecom Inc. | — | — | 0 |
| AS393503US | DIALS-1 - Dial2SMS Inc | — | — | 0 |