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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. | 218.1M | 26,023 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,233 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 | 51.6M | 3,893 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 512 |
| — |
| 2 |
| AS16622US | NOVARAD - Novarad Corporation | 512 | 1 | 2 |
| AS53427US | TGLOBAL-NETWORKS - TGLOBAL NETWORKS | 512 | 262 | 9 |
| AS3921US | AGNOGE - General Electric Company | 512 | — | 2 |
| AS26158US | USG-TOR-AS - ULTIMATE SOFTWARE GROUP | 512 | — | 2 |
| AS395252US | STAMFORD-HEALTH - Stamford Hospital | 512 | — | 2 |
| AS397887US | HOSTMYCALLS-01 - HostMyCalls | 512 | — | 2 |
| AS27486US | MCF-SOFTWARE - MCF Software, LLC | 512 | — | 1 |
| AS36570US | KOCO-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS394803US | ANSI-ASN - American National Standards Institute | 512 | — | 2 |
| AS399781US | AE - AE Hosting | 512 | — | 2 |
| AS46567US | BORDER-STATES-INDUSTRIES - Border States Industries | 512 | — | 2 |
| AS54529US | LCRC-AS - Louisiana Cancer Research Center | 512 | — | 2 |
| AS13740US | HYPERNET-AS - 1stel, Inc. | 512 | — | 2 |
| AS54639US | APOG-OSU-OK - Apogee Telecom Inc. | 512 | — | 1 |
| AS399828US | COKER-CAMPUS-01 - Coker University | 512 | — | 1 |
| AS394776US | RGL-ASN-1 - JACK Entertainment LLC | 512 | — | 2 |
| AS393716US | INTRADA-AS000 - Intrada Technologies, Inc | 512 | — | 1 |
| AS398911US | TERABIT-NETWORKS - Terabit Networks | 512 | — | 1 |
| AS19480US | CPL - CHICAGO PUBLIC LIBRARY | 512 | — | 2 |
| AS4900US | ASN1 - Montgomery County Hospital District | 512 | — | 2 |
| AS53710US | OWENS-CORNING - Owens-Corning | 512 | 8 | 2 |
| AS12120US | AAO-AIO - Amphenol Corp | 512 | — | 2 |
| AS32428US | BELZ-INVESTCO - BELZ ENTERPRISES | 512 | — | 2 |
| AS395860US | NETBLK-CLARIOS - Clarios | 512 | — | 2 |
| AS5022US | SSEMC - Snapping Shoals Electric Membership Corporation | 512 | — | 2 |
| AS11328US | BIO-RAD-ASN - Bio-Rad Laboratories, Inc. | 512 | — | 2 |
| AS1015US | SERVERSTARTERHOST - Server Starter Host LLC | 512 | 256 | 3 |
| AS400894US | HUMBLEISD - Humble Independent School District | 512 | — | 2 |
| AS18920US | HEI - Hawaiian Electric Industries, Inc. | 512 | — | 2 |
| AS29746US | S3PL-ASN - S3 Partners LLC | 512 | — | 2 |
| AS36674US | ULINE - Uline | 512 | — | 2 |
| AS2000US | IA-AS - Internet Awareness, Inc. | 512 | 1 | 3 |
| AS396211US | TCI-PLAINS01 - Triple Crown Internet, Inc. | 512 | — | 1 |
| AS36763US | WBBH - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS397170US | COMPASS-FOUNDATION - COMPASS FOUNDATION LLC | 512 | 768 | 5 |
| AS46252US | HIA-TRCY - Hagerty Insurance Agency LLC | 512 | — | 2 |
| AS401847US | 321-WLCS-ASN - 321 Communications, Inc. | 512 | 2 | 4 |
| AS31955US | ASN-CONNEXUSENERGY - CONNEXUS ENERGY | 512 | — | 2 |
| AS400114US | APOG-RBC - Apogee Telecom Inc. | 512 | — | 2 |
| AS36153US | VGC-AMER-ASN - Vertiv | 512 | — | 2 |
| AS33756US | CHC-ASN-A - The Children's Hospital Corporation | 512 | 256 | 2 |
| AS398009US | PRAIRIEHILLS - Prairie Hills Wireless LLC | 512 | — | 2 |
| AS13814US | RCB1936 - RCB Bank | 512 | — | 2 |
| AS402806US | DUOCIRCLE - DuoCircle | 512 | — | 2 |
| AS22621US | UNIGROUP - UniGroup, INC | 512 | — | 2 |
| AS32050US | SULLCROM - SULLCROM | 512 | — | 2 |