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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. | 211.2M | 21,174 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,940 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1.3K |
| — |
| 5 |
| AS21763US | ROSSSTORES - Ross Stores Inc. | 1.3K | — | 5 |
| AS63138US | SAC-COLO1 - Blue Shield of California | 1.3K | — | 5 |
| AS53706US | ARISE-VIRTUAL-SOLUTIONS-INC - Arise Virtual Solutions Inc. | 1.3K | — | 3 |
| AS394099US | DECORAH-METRONET - Decorah MetroNet | 1.3K | — | 2 |
| AS11476US | PCT-01 - PRIME CARE TECHNOLOGIES, INC. | 1.3K | — | 2 |
| AS16925US | COSMB-MAIN-NET-00 - Cloud Optimized SMB LLC | 1.3K | 4.7K | 10 |
| AS393650US | CCBCMD - CCBC | 1.3K | — | 2 |
| AS11140US | BEHRPROCESS - Behr Process | 1.3K | — | 2 |
| AS46537US | ELMDC - Elm Datacenter LLC | 1.3K | — | 5 |
| AS6269US | ATT-INTERNET2 - AT&T Enterprises, LLC | 1.3K | — | 2 |
| AS401912US | ASN-BVSD-01 - Boulder Valley School District (BVSD) | 1.3K | — | 5 |
| AS55171US | MTS-HEALTHCARE - MTS Healthcare | 1.3K | — | 4 |
| AS40588US | WELLSPAN-WOC-AS - York Hospital | 1.3K | — | 5 |
| AS397860US | HIT - HANKINS INFORMATION TECHNOLOGY | 1.3K | — | 2 |
| AS54159US | XETRANETWORKS - Xetra Networks Inc. | 1.3K | — | 4 |
| AS1562US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | 1.3K | — | 4 |
| AS18604US | AIHOST - Ai Host, LLC | 1.3K | — | 3 |
| AS395237US | CENTRIC-IS - CIS | 1.3K | — | 2 |
| AS399408US | NUBROADWACA - COAXIAL NETWORKS INC | 1.3K | 1 | 5 |
| AS4539US | SEL-AS - Schweitzer Engineering Laboratories, Inc. | 1.3K | — | 2 |
| AS53629US | CNBT-AS - THE CITY NATIONAL BANK OF TAYLOR | 1.3K | — | 5 |
| AS19393US | ROBERTS-COMMUNICATIONS-NETWORK - Roberts Communications Network, LLC | 1.3K | — | 4 |
| AS25985US | SYMBIOSYSTEMS - SymbioSystems LLC | 1.3K | — | 5 |
| AS397934US | AAILLC-1 - Latitude AI LLC | 1.3K | — | 5 |
| AS216093US | SERVERGUARD Root Localhost LLC | 1.3K | 4 | 9 |
| AS46373US | CONCENTUSNET - Concentus.net | 1.3K | — | 5 |
| AS36539US | PEAK6 - Peak6 Group LLC | 1.3K | — | 4 |
| AS27161US | LITNICS-01 - Litnics, LLC | 1.3K | — | 4 |
| AS30046US | EIC - Erie Indemnity Company | 1.3K | — | 5 |
| AS17318US | DOMAINTOOLS - DomainTools, LLC | 1.3K | — | 2 |
| AS30114US | DECIMA-LLC - Decima LLC | 1.3K | 41 | 13 |
| AS397410US | MTG-AS - Mainstream Technology Group | 1.3K | — | 4 |
| AS63168US | TRP-COLORADO-SPRINGS - T. Rowe Price Associates, INC. | 1.3K | — | 5 |
| AS18643US | SMART-CITY-TACC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.3K | — | 2 |
| AS19470US | LCPS - LAS CRUCES PUBLIC SCHOOLS | 1.3K | 256 | 3 |
| AS399765US | FASNET-SERVICES - FasNET Services LLC | 1.3K | 320 | 6 |
| AS53355US | CUW-1 - Concordia University Wisconsin | 1.3K | 1 | 6 |
| AS13837US | POINT5-MS - Point5 Managed Services, LLC | 1.3K | 65.5K | 5 |
| AS39945US | NUSPIRE - Nuspire Communications | 1.3K | — | 4 |
| AS23046US | INFINITE-CAMPUS-GA - Infinite Campus, Incorporated | 1.3K | — | 2 |
| AS400783US | DFC-ASN-01 - Dole Food Company, Inc. | 1.3K | — | 5 |
| AS46742US | QTS-HIL - Quality Technology Services, LLC | 1.3K | 65.5K | 3 |
| AS398491US | HYPEREXPERT - Hyper Expert, LLC | 1.3K | 8.2K | 7 |
| AS21998US | SETA - SETA | 1.3K | — | 2 |
| AS400807US | BMU-GW-01 - BRYAN MUNICIPAL UTILITIES | 1.3K | — | 5 |
| AS46614US | SENCI-46614 - Sencinet LatAm (Nevada) Corp. | 1.3K | — | 5 |