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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 | 24,645 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,220 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 | 3,890 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,364 |
| 256 |
| — |
| 1 |
| AS394359US | FARELOGIX - Farelogix, Inc. | 256 | — | 1 |
| AS54493US | ASPEN-VALLEY-HOSPITAL - Aspen Valley Hospital | 256 | — | 1 |
| AS398667US | MALWAREBYTES-NETWORK-HQ - Malwarebytes, Inc | 256 | — | 1 |
| AS19263US | CBAD-NET - Cincinnati Bell Any Distance, Inc. | 256 | — | 1 |
| AS30401US | SUIT-SHARED-SERVICES - Southern Ute Indian Tribe | 256 | — | 1 |
| AS16881US | DAVID-C-PRALL-INTERNET - Prall, Inc., David C | 256 | 1 | 2 |
| AS32196US | JLEMDR - Jacobs Levy Equity Management, Inc. | 256 | — | 1 |
| AS395642US | MOZILLA-TOR1 - Mozilla Corporation | 256 | 1 | 2 |
| AS18965US | TRANSMARKETGROUP - TransMarket Group L.L.C. | 256 | — | 1 |
| AS396345US | FOXGUARD-SOLUTIONS-INC - FoxGuard Solutions, Inc. | 256 | — | 1 |
| AS30472US | EAST-WEST-CENTER-HOUSINGNET - East-West Center | 256 | — | 1 |
| AS399754US | HCHS-30 - Harlan County Health System | 256 | — | 1 |
| AS397664US | WSC-CHANDLER-AZ - Weidenhammer Systems Corp. | 256 | — | 1 |
| AS54892US | AS-CBPP - Center on Budget and Policy Priorities | 256 | — | 1 |
| AS62716US | TELECOM-ENTRENAMIENTOS-TELECOM-ISP-SOLUTIONS - Telecom Trainings LLC | 256 | 256 | 2 |
| AS19581US | GRAYCENTRALCAST - Gray Media, Inc. | 256 | — | 1 |
| AS53915US | SEI - SECURITY EQUIPMENT INC | 256 | — | 1 |
| AS395961US | INGLES-MARKETS - INGLES MARKETS Inc. | 256 | — | 1 |
| AS15336US | CONCOR-1 - Concordia University, St. Paul | 256 | — | 1 |
| AS19096US | DESALES-NETWORK - DeSales University | 256 | — | 1 |
| AS32556US | TAHASN - Titusville Area Hospital | 256 | — | 1 |
| AS27596US | REDWIRE - VoloNet Technologies, Inc | 256 | — | 1 |
| AS19650US | BUNZLUSA - Bunzl Distribution, Inc. | 256 | — | 1 |
| AS396482US | GRAYTELEVISION - Gray Media, Inc. | 256 | — | 1 |
| AS399504US | STREAMING-SYSTEMS-LLC - Streaming Systems, LLC | 256 | 4.1K | 2 |
| AS400531US | WESTHOLT-ASN-01 - West Holt Memorial Hospital | 256 | — | 1 |
| AS63032US | DICOMGRID - DICOM Grid Inc | 256 | — | 1 |
| AS400924US | MACPAPERS-ASN-01 - Mac Papers, LLC | 256 | — | 1 |
| AS18792US | MEME - Meme Holdings LLC | 256 | 1 | 2 |
| AS11370US | UW-ASN-01 - UltraWISP, LLC | 256 | — | 1 |
| AS30618US | LEEUNIV - Lee University | 256 | — | 1 |
| AS27236US | CLEVELANDHEIGHTSUNIVERSITYHEIGHTSCITYSCHOOLS - Cleveland Heights University Heights City Schools | 256 | — | 1 |
| AS398456US | VIO-PROD-01 - VERGE.IO LLC | 256 | — | 1 |
| AS398932US | COA-ASN - The Children's Hospital of Alabama | 256 | — | 1 |
| AS14514US | PHJW - Paul, Hastings, Janofsky & Walker LLP | 256 | — | 1 |
| AS19310US | CASAIR - Point Broadband Fiber Holding, LLC | 256 | — | 1 |
| AS213912US | Mediabay-AS International Mediabay Alliance, LLC | 256 | — | 1 |
| AS36826US | INFINITY-TX - Infinity Broadband | 256 | 64 | 2 |
| AS399897US | FULLSPANSOLUTIONS-AS01 - Full Span Solutions LLC | 256 | — | 1 |
| AS400358US | TOTALDATALOSS - TOTALDATALOSS LLC | 256 | 256 | 2 |
| AS32687US | SKYTRON-AS - The KMW Group, Inc. | 256 | — | 1 |
| AS401716US | CAL-STO - State Treasurer's Office | 256 | — | 1 |
| AS400540US | WIRELESS-BLUE-INC - Wireless Blue Inc. | 256 | 256 | 2 |
| AS11444US | ISHK-NTK - Neuteck LLC | 256 | — | 1 |
| AS13314US | TEMA-AS - Toyota Motor Engineering and Manufacturing North America, Inc. | 256 | — | 1 |
| AS401040US | LEGGETT-PLATT-INCORPORATED - Leggett & Platt, Incorporated | 256 | — | 1 |