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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS142130US | NICONET-AS-US - NICHONET Inter-Continental Hosting Operation Network | — | 18 | 3 |
| AS198526US | GREAT-SCOTT-CONSULTING ERIN ALLEN SCOTT trading as Great Scott Consulting Services | — | 1 | 1 |
| AS218876US | NR-DIGITAL-LLC-AS N.R. Digital LLC | — | 2.3K | 9 |
| AS397758US | DATAROBOT-01 - DataRobot, Inc. | — | — | 0 |
| AS18535US | ROCHE-INDY - Hoffmann LaRoche, Inc. | — | 4.4K | 2 |
| AS401090US | SARAPLUS-AZURE-01 - SARA Plus, LLC | — | — | 0 |
| AS398767US | ORONO-SCHOOLS-MN - Independent School District No 278 County of Hennepin | — | 16 | 1 |
| AS401129US | GCGL-15-BLOCK-2024 - Grant Consulting Group LLC | — | — | 0 |
| AS575US | DNIC-AS-00575 - Headquarters, USAISC | — | 256 | 1 |
| AS400296US | DART-NET - Snaju Development | — | — | 0 |
| AS51312US | SRSP-4-51312 - Aubrey Rose | — | 16 | 1 |
| AS400231US | ATCS-NETWORK - A.T.C.S. LLC | — | — | 0 |
| AS398394US | DF-HADDEN - DF Supply, Inc. | — | 1 | 1 |
| AS399711US | SPLISHCO - Splish Co., LLC | — | — | 0 |
| AS972US | CF3 - Cofractal, Inc. | — | 3 | 3 |
| AS400714US | ABH-AS - AB Handshake Corporation | — | — | 0 |
| AS401649US | AS-CYRATECH-LAX - Cyratech Technologies LLC | — | 256 | 1 |
| AS396593US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS21939US | PCCUA-AS - Phillips Community College of the University of Arkansas | — | 260 | 2 |
| AS6441US | BIGBOOK - BigBook | — | — | 0 |
| AS202902US | ANTARES-NETWORK Nathen Goldsborough | — | 1 | 1 |
| AS4219US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | — | 0 |
| AS397955US | DEEPSOUTHCOMMUNICATIONS - Deep South Communications LLC | — | 1 | 1 |
| AS6627US | GRAPEVINE - Grapevine Systems, Inc. | — | — | 0 |
| AS262US | VERIO - NTT America, Inc. | — | 1 | 1 |
| AS30581US | SUNOAKI-NET - Sunoaki Network LLC | — | 1 | 1 |
| AS53841US | RAMHOST - RAM Host | — | 12.3K | 3 |
| AS4042US | VERO-NETWORKS-AS4042 - Vero Broadband | — | — | 0 |
| AS395556US | TRI-CORP - Trident Seafoods Corporation | — | 4 | 4 |
| AS3956US | TX-METRO - Texas Metronet | — | — | 0 |
| AS11006US | HRT-SCS - HRTec | — | 65.7K | 2 |
| AS4002US | COGENT-4000 - Cogent Communications, LLC | — | — | 0 |
| AS197272US | PHILIPHOGAN Philip Hogan | — | 1 | 1 |
| AS5695US | MAILROOM-NT - Allen Bradley Inc. | — | — | 0 |
| AS401775US | KV-LVDC-01 - KnightVision | — | 256 | 1 |
| AS5684US | GANNETT-NET - Gannett Company, Inc. | — | — | 0 |
| AS399980US | RFPT - RFPT COMPANY LLC | — | 258 | 3 |
| AS5326US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS207393US | AS_Clayton Clayton Donley | — | 2 | 2 |
| AS4102US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS216124US | C-RAM-AS C-Ram Inc. | — | 256 | 1 |
| AS200878US | CHRISP Christopher Thomas | — | 1 | 1 |
| AS5887US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 1 | 1 |
| AS4950US | ASN-SPRN-NYSERNET1 - SPRINT, Business Serices Group | — | — | 0 |
| AS19451US | ELECTROCLOUD - Electro Cloud | — | 65.5K | 1 |
| AS4490US | EMTF-LAK - Air Force Systems Networking | — | — | 0 |