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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. | 218M | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS63237US | UDEMY - Udemy | — | — | 0 |
| AS63288US | BAIDU-US - Baidu USA LLC | — | — | 0 |
| AS63315US | INVALUABLE-ASN1 - Invaluable | — | — | 0 |
| AS63342US | ALPHASCRIPT - Alphascript, Inc. | — | — | 0 |
| AS63347US | BNSF-LOGISTICS - BNSF Logistics LLC | — | — | 0 |
| AS64292US | EQUINIX-CX-DE - Equinix, Inc. | — | — | 0 |
| AS148967US | ISC-AS-AP - Internet Systems Consortium | — | — | 0 |
| AS153602US | CITIGROUPINC-AS-AP - Citigroup Inc. | — | — | 0 |
| AS198427US | WOYONEXUS WOYONEXUS INC | — | — | 0 |
| AS201969US | ISC-LUX1 Internet Systems Consortium Inc. | — | — | 0 |
| AS203112US | HOFL-1-203112 - Hearts On Fire | — | — | 0 |
| AS210508US | Justifi Justifi Network LLP | — | — | 0 |
| AS210691US | ASTROVPN-AS ASTROVPN LLC | — | — | 0 |
| AS211544US | Unlabeled Unlabeled, LLC | — | — | 0 |
| AS211718US | BGPSTUFF-AS Darren O'Connor | — | — | 0 |
| AS212884US | SMTS-AS Smoky Mountain Technical Solutions LLC | — | — | 0 |
| AS393239US | H1HVN - Higher One, Inc | — | — | 0 |
| AS393264US | COEUR-MINING-INC - COEUR MINING, INC. | — | — | 0 |
| AS393293US | ILITCH-HOLDINGS - Ilitch Holdings Inc. | — | — | 0 |
| AS393297US | COMM-COREAS - Comm-Core | — | — | 0 |
| AS393313US | IIR-ARIN - THE INSTITUTE FOR INTERGOVERNMENTAL RESEARCH, INC. | — | — | 0 |
| AS393403US | CENERO-INC - Cenero LLC | — | — | 0 |
| AS393416US | STILES - Stiles Machinery Inc | — | — | 0 |
| AS393472US | APD-V1 - The Northern Trust Company | — | — | 0 |
| AS393481US | 204-89-188-0-24 - CITY OF ALLENTOWN | — | — | 0 |
| AS393494US | L3TV-AS - T-Mobile USA, Inc. | — | — | 0 |
| AS393610US | NICHOLLS-STATE-01 - Nicholls State University | — | — | 0 |
| AS393617US | COMMONAPP - Common Application | — | — | 0 |
| AS393641US | LC-SFO-393641 - LendingClub Corporation | — | — | 0 |
| AS393727US | AS393727 - The Buffalo News, Inc | — | — | 0 |
| AS393729US | AUCTION-CORP - Auction.com | — | — | 0 |
| AS393741US | COMPIQSOLUTIONS - CompIQ Solutions LLC | — | — | 0 |
| AS393842US | ASN-CC1 - Constant Contact, Inc | — | — | 0 |
| AS393858US | DATACC - PRECISION TECHNOLOGY, INC. | — | — | 0 |
| AS393913US | THEREALREAL - The RealReal Inc. | — | — | 0 |
| AS393963US | COM-LINK - COM-LINK INC | — | — | 0 |
| AS394083US | RIDGEFIELD-PS - Ridgefield Public Schools | — | — | 0 |
| AS394101US | THOUSANDEYES - ThousandEyes, Inc. | — | — | 0 |
| AS394159US | TPS-TX2-AS - Tenaska Power Services, Co. | — | — | 0 |
| AS394172US | BCI-NASH-01 - Benefit Communications, Inc. | — | — | 0 |
| AS394200US | VALICE - Valice | — | — | 0 |
| AS394291US | STERICOMSOL - STERICYCLE, INC. | — | — | 0 |
| AS394300US | TAB-BANK - TAB Bank | — | — | 0 |
| AS394307US | MW-AS - Fairview Health Services | — | — | 0 |
| AS394373US | QUENTUSTECH - Quentus Technologies | — | — | 0 |
| AS394476US | GENESYS-CLOUD-GCV - Genesys Cloud | — | — | 0 |