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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,749 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,226 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| 14.3K |
| — |
| 15 |
| AS21669US | NJ-STATEWIDE-LIBRARY-NETWORK - New Jersey State Library | 14.3K | — | 25 |
| AS22878US | ASACENET1 - ACENET, INC. | 14.3K | — | 5 |
| AS28907US | MIROHOST Internet Invest, Ltd. | 14.3K | 66.6K | 14 |
| AS32701US | AS-VANGUARD - The Vanguard Group, Inc. | 14.3K | — | 56 |
| AS33097US | VOLOCU - Volo Broadband | 14.3K | — | 18 |
| AS395337US | MACST-VEGAS - MacStadium, Inc. | 14.3K | 8.2K | 12 |
| AS2639US | ZOHO-AS - ZOHO | 14.3K | 7 | 37 |
| AS15317US | SERVEREL-AS - Serverel Inc. | 14.3K | 65.5K | 7 |
| AS22794US | AQR - AQR CAPITAL MANAGEMENT LLC | 14.3K | — | 14 |
| AS14782US | THEROCKETSCIENCEGROUP - MailChimp | 14.6K | — | 57 |
| AS14755US | MHO - MHO Networks | 14.6K | — | 6 |
| AS10444US | ZB NATIONAL ASSOCIATION - ZB, National Association | 14.6K | — | 27 |
| AS213954US | GTS-AS Global Transit Systems LLC | 14.6K | — | 44 |
| AS394778US | NEMR - Northeast Missouri Rural Telephone Co. | 14.6K | 65.5K | 42 |
| AS394991US | ASN-SWC - SWC TELESOLUTIONS, INC. | 14.6K | — | 28 |
| AS7359US | CENTURYLINK-SPA-ZUNI - CenturyLink Communications, LLC | 14.6K | 1 | 5 |
| AS396097US | SAIL-INET - Sail Internet, Inc. | 14.6K | 65.8K | 21 |
| AS26211US | PROOFPOINT-ASN-US-WEST - Proofpoint, Inc. | 14.6K | 4 | 55 |
| AS18794US | RAMAPO-COLLEGE - Ramapo College of New Jersey | 14.6K | — | 4 |
| AS30247US | VOONAMI - Voonami, Inc. | 14.6K | 66.1K | 20 |
| AS22438US | CLEAR-RATE-COMMUNICATIONS - Clear Rate Communications, Inc. | 14.6K | 65.5K | 11 |
| AS15117US | ANHEUSER-BUSCH - Anheuser-Busch Companies Inc. | 14.6K | — | 11 |
| AS46694US | ASN-SPTC - South Plains Telephone Cooperative, Inc. | 14.6K | 65.5K | 19 |
| AS7453US | ACCELERATION - ACCELERATED DATA WORKS, INC. | 14.6K | — | 13 |
| AS40824US | WZ-US-40824 - Webzilla Inc. | 14.6K | 65.5K | 39 |
| AS397360US | TSTCH-ASN - Texas State Technical College Harlingen | 14.8K | — | 13 |
| AS393789US | CENTURYLINK-CHIA-PROJECT - CenturyLink Communications, LLC | 14.8K | — | 50 |
| AS21100US | ITLDC-EU ROUTE 95 LLC | 14.8K | 262.1K | 43 |
| AS54249US | APS-AS1 - Albuquerque Public Schools | 14.8K | — | 20 |
| AS394996US | PAPERSPACE - 47-2339071 | 14.8K | — | 53 |
| AS21918US | ELECTRONET - Metronet | 14.8K | — | 27 |
| AS53316US | ASN-CHEETA-MAIL - CHEETAHMAIL | 14.8K | — | 41 |
| AS400956US | OPENMETAL-AS - OpenMetal, Inc. | 14.8K | 12.3K | 32 |
| AS1208US | DNIC-AS-01208 - United States Department of Defense (DoD) | 14.8K | — | 5 |
| AS25961US | ALYRICA - Alyrica Networks Inc. | 14.8K | 69.6K | 20 |
| AS27482US | AECP-AS - American Eagle Computer Products, Inc. | 14.8K | — | 33 |
| AS32274US | LENAWEE-MONROE-TECHNOLOGY-CONSORTIUM - Lenawee-Monroe Technology Consortium | 14.8K | — | 27 |
| AS32066US | JPMORGAN-DALLAS-JIP - JPMorgan Chase & Co. | 14.8K | 2 | 6 |
| AS18671US | PRTC-SC - PRTC | 14.8K | — | 35 |
| AS15345US | AUSTINCC - Austin Community College | 14.8K | 1 | 12 |
| AS23366US | LSUHEALTHSCIENCESCTR - LSU Health Sciences Center | 14.8K | — | 27 |
| AS16664US | CC-COMMUNICATIONS - CC Communications | 14.8K | — | 7 |
| AS29982US | AMRAS01 - American Airlines Inc. | 14.8K | — | 5 |
| AS17025US | ZAYO-CUSTOMER-17025 - Zayo Bandwidth | 14.8K | 2 | 45 |
| AS14477US | FLTG - FirstLight Fiber, Inc. | 14.8K | 65.5K | 49 |
| AS32278US | GETWIRELESS - Getwireless.net | 14.8K | 65.6K | 38 |