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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,289 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,731 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,972 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS16722US | INTERNET-SERVICE - Internet Service, Inc. | — | — | 0 |
| AS16790US | TNBCI-TRANSNATIONAL-BANK-CARD - TransNational Bank Card | — | — | 0 |
| AS16817US | BHN-16817-NA - Charter Communications, Inc | — | — | 0 |
| AS16869US | MIRAPOINT-RDOM - Critical Path, LLC | — | — | 0 |
| AS16902US | VISTRAENERGY-16902 - Vistra Corporate Services Company | — | — | 0 |
| AS16916US | CALLTOWER-16916 - CallTower, Inc. | — | — | 0 |
| AS16997US | EPICOR - EPICOR | — | — | 0 |
| AS17128US | THL-PARTNERS - Thomas H. Lee Management Co., LLC | — | — | 0 |
| AS17280US | ASN-PRIORITY-HEALTH - Priority Health | — | — | 0 |
| AS17295US | EHI-CALLCENTER - eHealthInsurance Services Inc. | — | — | 0 |
| AS18504US | FLASHSEATS-APOD-ASN1001 - Veritix | — | — | 0 |
| AS18508US | YUME-VA - RhythmOne, LLC | — | — | 0 |
| AS18536US | ESERV-2 - ESERVER SPACE INC. | — | — | 0 |
| AS18566US | MEGAPATH5-US - GTT Americas, LLC | — | — | 0 |
| AS18605US | SOUTHPOLE - SOUTHPOLE | — | — | 0 |
| AS18735US | TWM-BGP - Tolleson Management LP | — | — | 0 |
| AS18744US | SMISLOVA-KEHNEMUI-AND-ASSOCIATES-ENGINEERS - Smislova, Kehnemui & Associates, P.A. | — | — | 0 |
| AS18754US | 18754 - Looksmart Group Inc. | — | — | 0 |
| AS18806US | US-SIGNAL-AZ02 - US Signal Company, L.L.C. | — | — | 0 |
| AS18917US | TIHC-DC3 - TI Intermediate Holdings, LLC | — | — | 0 |
| AS18940US | WLTH-CORP - Wealthfront Corporation | — | — | 0 |
| AS19159US | APL135 - Communications, Land and Real Estate | — | — | 0 |
| AS19222US | LIGHTCREST - Lightcrest LLC | — | — | 0 |
| AS19249US | COREEXPRESS-STLCORP - CoreExpress | — | — | 0 |
| AS19258US | VAIRESORT-PHX - VAI Resorts, LLC | — | — | 0 |
| AS19283US | NETRIX-19283 - Cyber Development Group International, LLC | — | — | 0 |
| AS19288US | SUNGARDAS-19288 - BroadbandONE, LLC | — | — | 0 |
| AS19370US | FDSINC - FDS | — | — | 0 |
| AS19410US | BENTONREA2 - BENTON REA POWERNET | — | — | 0 |
| AS19441US | ARRIS2 - CommScope Technologies LLC. | — | — | 0 |
| AS19457US | RUDIN - Rudin Management Company, Inc. | — | — | 0 |
| AS19538US | LUXOR - Luxor | — | — | 0 |
| AS19548US | TWC-19548-NA - Charter Communications Inc | — | — | 0 |
| AS19550US | SIHOPE-AS - Sihope Communications | — | — | 0 |
| AS19568US | AFFINITYTS - Affinity Technology Solutions LLC | — | — | 0 |
| AS19649US | DATAPIPE-GOV-SOLUTIONS - DataPipe, Inc. | — | — | 0 |
| AS19699US | XO-19698-19699 - Verizon Business | — | — | 0 |
| AS19702US | FITCH-COLO-AS-01 - FITCH INC. | — | — | 0 |
| AS19715US | YOUBET - Churchill Downs Incorporated | — | — | 0 |
| AS19823US | TPAC-SJ-01 - TPx Communications | — | — | 0 |
| AS19824US | TPAC-LV-01 - TPx Communications | — | — | 0 |
| AS20056US | TVFR-COMPUTER-OPERATIONS-CENTER - Tualatin Valley Fire & Rescue | — | — | 0 |
| AS20196US | OGDEN-N - Ogden Newspapers Inc | — | — | 0 |
| AS20328US | COMSPAN-BANDON - Douglas FastNet | — | — | 0 |
| AS20370US | MARCHO-2 - March of Dimes | — | — | 0 |
| AS20447US | KITAUJI-NETWORKS - Kitauji Networks LLC | — | — | 0 |