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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 512 |
| — |
| 2 |
| AS31803US | MMPLP - Magellan Midstream Partners, L.P. | 512 | — | 2 |
| AS395842US | GLACIER-BROADBAND-MT - Glacier Broadband | 512 | — | 2 |
| AS32949US | UNITED-REFRIGERATION - UNITED REFRIGERATION INC | 512 | — | 2 |
| AS54957US | PVAL-ASN1 - Parallax Volatility Advisers LLC | 512 | — | 2 |
| AS14353US | WIX-IT - Wix.Com, Inc. | 512 | — | 2 |
| AS18870US | GWB - Great Western Bank | 512 | — | 2 |
| AS22582US | LUMINEX - Luminex Corporation | 512 | — | 2 |
| AS400564US | WESTONREED - Weston Reed, Sole Proprietorship | 512 | 1 | 3 |
| AS400552US | ODYACAD-ASN - Odyssey Academy, Inc. | 512 | — | 2 |
| AS399346US | STMU-SATX-01 - St Mary's University | 512 | — | 2 |
| AS63157US | DBI-CMH9 - DSW Information Technology LLC. | 512 | — | 1 |
| AS467US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 512 | — | 1 |
| AS6508US | VANTIVA - Vantiva USA Shared Services Inc. | 512 | — | 2 |
| AS396086US | HAMPSHIRE-CAMPUS - Hampshire College | 512 | — | 2 |
| AS26533US | STIBARC-AS-01 - STiBaRC | 512 | 5 | 7 |
| AS394127US | ALACRITYSERVICES - Alacrity Services | 512 | — | 2 |
| AS27486US | MCF-SOFTWARE - MCF Software, LLC | 512 | — | 1 |
| AS63431US | K-LOVE - EMF Broadcasting | 512 | — | 2 |
| AS30252US | BMCD-US - BURNS & MCDONNELL, INC. | 512 | — | 2 |
| AS26941US | SHUTTERSTOCK - Shutterstock Inc | 512 | — | 2 |
| AS20397US | BOXLAKE - Box Lake Networks, Inc. | 512 | — | 2 |
| AS397560US | 300-SAHARA - 300 West Sahara, LLC | 512 | — | 2 |
| AS395252US | STAMFORD-HEALTH - Stamford Hospital | 512 | — | 2 |
| AS63371US | 63371 - Lubrizol Additives | 512 | — | 2 |
| AS398441US | CTON-CITY-SCHOOLS - Carrollton City Schools District | 512 | — | 2 |
| AS33685US | LOAFHOSTS - Loafhosts | 512 | — | 2 |
| AS54743US | AS-TAGUCHI - Taguchi Networks LLC | 512 | — | 2 |
| AS397292US | GIGABEAM-INTERNET - Symplified Technologies LLC | 512 | — | 1 |
| AS54639US | APOG-OSU-OK - Apogee Telecom Inc. | 512 | — | 1 |
| AS46362US | CSIU-AS-NUM - Central Susquehanna Intermediate Unit | 512 | — | 2 |
| AS396083US | ARVUS-160-84 - Framatome Inc. | 512 | — | 2 |
| AS7124US | DACSCX-US - DACS-IX | 512 | 264 | 11 |
| AS30707US | YABOIII - YaBoiii | 512 | — | 2 |
| AS17405US | FISERV-CORPORATE - Fiserv Solutions, LLC | 512 | — | 2 |
| AS22579US | INDEPENDENCE-HEALTH-SYSTEM-BUTLER - Butler Memorial Hospital | 512 | — | 2 |
| AS215406US | paymentpass PaymentPass Inc. | 512 | — | 2 |
| AS27218US | INFINITUM-NIHIL - INFINITUM NIHIL | 512 | 1 | 2 |
| AS32169US | CMENETWORKS - CME Networks, LLC | 512 | 256 | 3 |
| AS32583US | LA-ENC-ASN1 - Life Alert Emergency Response, Inc. | 512 | — | 2 |
| AS27206US | COSL-01 - City of Sugar Land | 512 | — | 2 |
| AS13978US | WHBE-OLYMPIA - Washington Health Benefit Exchange | 512 | — | 2 |
| AS394761US | PTS-MAIN - Princeton Theological Seminary | 512 | — | 2 |
| AS32610US | GLOBAL-AS - Global Companies LLC | 512 | — | 2 |
| AS22928US | CMR1385 - CMR LLC | 512 | — | 2 |
| AS399781US | AE - AE Hosting | 512 | — | 2 |
| AS36013US | MRESNET - Missouri River Energy Services | 512 | — | 2 |