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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| 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 | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| — |
| 2 |
| AS399782US | WAB-01 - Western Alliance Bank | 512 | — | 2 |
| AS17031US | WINSTON-SALEM-SCHOOLS - Winston-Salem/Forsyth County Schools | 512 | — | 1 |
| AS11720US | IBCP - Independent Bank Corporation | 512 | — | 2 |
| AS397990US | WILLIAMSLABS-LLC - Williamslabs LLC | 512 | 17 | 4 |
| AS46557US | DWS-UAE - Disney Worldwide Services, Inc. | 512 | — | 2 |
| AS11327US | NCI-GROUP-INC - NCI Group, Inc. | 512 | — | 2 |
| AS33573US | BAQMD-SF - Bay Area Air Quality Management District | 512 | — | 2 |
| AS398323US | PSBOS-1 - Provide Support LLC | 512 | — | 2 |
| AS16653US | CVENT - Cvent, Inc. | 512 | 1 | 3 |
| AS401807US | INTUITY - Intuity Consultants, Inc. | 512 | — | 2 |
| AS36467US | MAINLINE-INFORMATION-SYSTEMS - Mainline Information Systems Inc. | 512 | — | 2 |
| AS32412US | HOLX - HOLOGIC INC | 512 | — | 2 |
| AS399145US | SUMO-SC - Sumo Capital LLC | 512 | — | 3 |
| AS402423US | LUYANI - Luyani | 512 | — | 2 |
| AS23263US | EL-INTERNET-NORTHWEST - E.L. Internet Northwest | 512 | — | 2 |
| AS393697US | HUBUSILEGVDCSUB - Hub International | 512 | — | 2 |
| AS397290US | HFCU - Honda Federal Credit Union | 512 | — | 2 |
| AS395123US | CENTRACOM - CENTRACOM INTERACTIVE | 512 | 1 | 3 |
| AS55099US | HRBL-SLC-INTERNET-BGP - Herbalife International of America, Inc. | 512 | — | 2 |
| AS32549US | JCISD-1 - Jackson County Intermediate School District | 512 | — | 1 |
| AS394819US | NOST-EAST - NNSA Office Of Secure Transportation | 512 | — | 2 |
| AS13470US | NAVAJOCOUNTYAZ - NAVAJO COUNTY | 512 | — | 2 |
| AS23447US | NETTECH-ASN01 - NetTech, LLC | 512 | — | 2 |
| AS393613US | VACU-ASN-1 - Virginia Credit Union, Inc. | 512 | — | 2 |
| AS53482US | MKMG - CareMount Medical, P.C. | 512 | — | 2 |
| AS393798US | CPSHR-NET - Cooperative Personnel Services | 512 | — | 1 |
| AS395135US | BTI-COMMUNICATIONS - BTI Communications | 512 | — | 1 |
| AS27502US | CHOWCHILLADIST - Madera County Office of Education | 512 | — | 2 |
| AS40373US | UMC-NET - University Medical Center, Inc | 512 | — | 1 |
| AS20047US | CITYOFVABEACH - City of Virginia Beach, Virginia | 512 | — | 2 |
| AS22676US | CITY-OF-COVINGTON-GA - City Of Covington, Georgia | 512 | — | 1 |
| AS40096US | HPS-51-ASN - High Point Solutions, Inc. | 512 | — | 1 |
| AS396296US | HORIZON-CREDIT-UNION-57 - Horizon Credit Union | 512 | — | 2 |
| AS53607US | SDCS-AS1 - Synergy Data Center & Services | 512 | — | 2 |
| AS40117US | YEXT - Yext, Inc. | 512 | — | 2 |
| AS25618US | SHINE - SHINESHAN | 512 | 256 | 3 |
| AS12244US | SECURITAS ELECTRONIC SECURITY - SUPREME - Securitas Electronic Security, Inc. | 512 | — | 2 |
| AS402164US | ROFAEL-01 - Rofael Aleezada, Sole Proprietorship | 512 | 1 | 3 |
| AS25924US | GCM - Graham Capital Management, L.P. | 512 | — | 2 |
| AS46843US | TGNA-KTVB - TEGNA Inc. | 512 | — | 2 |
| AS397624US | PH-LSK-001 - Parker Hannifin Corporation | 512 | — | 1 |
| AS13527US | GOOFL-TESTBED - Gooflare LLC | 512 | 216 | 203 |
| AS40427US | IRONPORT-SYSTEMS-CI365 - Cisco Systems Ironport Division | 512 | — | 2 |
| AS17085US | AS-STOPLLC - SATELLITE TRACKING OF PEOPLE | 512 | — | 1 |
| AS396522US | EMAME-INET-1 - Versant Power | 512 | — | 2 |
| AS394411US | DPH-AS - Department of Public Health | 512 | — | 2 |