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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 21,026 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,220 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,585 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,933 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,534 |
| EPISD-ASN-1 - The El Paso Independent School District (EPISD) |
| 4.1K |
| — |
| 1 |
| AS399768US | VER-CT-ASN-01 - Verition Group LLC | 4.1K | — | 11 |
| AS36861US | AS36861 - RWJBarnabas Health, Inc. | 4.1K | — | 8 |
| AS30177US | FIBER-SOUTH-01 - Point Broadband Fiber Holding, LLC | 4.1K | 65.5K | 4 |
| AS46159US | HIGH-DESERT-ESD - High Desert Education Service District - High Desert ESD | 4.1K | — | 1 |
| AS10818US | FULLNETOK - Fullnet Communications | 4.1K | — | 1 |
| AS11863US | PLU - Pacific Lutheran University | 4.1K | — | 1 |
| AS401834US | HWSC-AS - Hobart and William Smith Colleges | 4.1K | — | 1 |
| AS13793US | T3VOICENET - T3 VoiceNet, LLC. | 4.1K | — | 1 |
| AS394356US | ICI - INTERNET COMMUNICATIONS INC. | 4.1K | — | 4 |
| AS46749US | STANFORD-INTERNET-ACCESS - Stanford University | 4.1K | — | 1 |
| AS395657US | HOPLITE-ASN - Hoplite Industries, Inc. | 4.1K | — | 15 |
| AS17003US | ZOETIS-INC - Zoetis Inc. | 4.1K | — | 6 |
| AS53862US | MCDANIELCOLLEGE - McDaniel College | 4.1K | — | 1 |
| AS31827US | BNT-NETWORK-ACCESS - Biz Net Technologies | 4.1K | 65.5K | 2 |
| AS401975US | RAILS - Reaching Across Illinois Library System | 4.1K | — | 1 |
| AS63160US | KIRKLAND-ELLIS-CO - Kirkland & Ellis LLP | 4.1K | — | 1 |
| AS27254US | ATCJET-NET - ATC COMMUNICATIONS | 4.1K | — | 1 |
| AS32023US | ANADARKO - Occidental Petroleum Corporation | 4.1K | — | 1 |
| AS54594US | ILLUMINATE-HILLSBORO - Illuminate Hillsboro | 4.1K | 65.5K | 5 |
| AS14603US | ABILITY-NETWORK - Ability Network Inc. | 4.1K | — | 2 |
| AS6547US | DCT-ASN - DCT Technologies, Inc. | 4.1K | — | 1 |
| AS46469US | GETRESPONSE-IMPLIX - GETRESPONSE | 4.1K | — | 5 |
| AS14859US | CAC-ASN - CENTRAL ARIZONA COLLEGE | 4.1K | — | 6 |
| AS13972US | WADSWORTH-CENTER - Wadsworth Center, NYS Department of Health | 4.1K | — | 1 |
| AS40583US | COLUMBIAGORGE-ESD - Columbia Gorge Education Service District | 4.1K | 65.5K | 10 |
| AS394666US | NYU-HOSPITALS-CENTER - NYU Langone Health | 4.1K | 65.5K | 10 |
| AS54323US | MMC-AS-NOV2011 - Maimonides Medical Center | 4.1K | — | 4 |
| AS395559US | FORCE-BROADBAND - Force Broadband LLC | 4.1K | — | 16 |
| AS16824US | HARLANNET-ASN - Harlan Municipal Utilities | 4.1K | — | 9 |
| AS54457US | HCEC-HOUSTON-PRIMARY - Harris County Emergency Corps | 4.1K | — | 1 |
| AS399864US | FLIXOUT - Flixout | 4.1K | — | 4 |
| AS12022US | ONEMAIN-AS - OneMain Holdings, Inc | 4.1K | — | 8 |
| AS400224US | TARLETON - Tarleton State University | 4.1K | — | 1 |
| AS46597US | ECOMMERCE - Ecommerce Discovery, LLC | 4.1K | — | 9 |
| AS11102US | VYANET-OPERATING-GROUP-INC - VYANET | 4.1K | — | 1 |
| AS32178US | SCC-ASN-31004 - Sinclair Community College | 4.1K | — | 1 |
| AS29826US | JH-ASN - John Hancock Life Insurance Company (U.S.A.) | 4.1K | — | 2 |
| AS6195US | GSCO - The Goldman Sachs Group, Inc. | 4.1K | — | 16 |
| AS400811US | HEART-THROB-1941 - Fuse Rural Connect, LLC | 4.1K | — | 8 |
| AS1360US | MEWS-04 - Mayfield Electric & Water Systems | 4.1K | — | 1 |
| AS18465US | WORKDAY-01 - Workday, Inc. | 4.1K | — | 16 |
| AS14585US | CIFNET - CIFNet, Inc. | 4.1K | 65.5K | 11 |
| AS27578US | AIRBRIDGE - AirBridge Broadband LLC | 4.1K | 65.5K | 5 |
| AS32765US | SENTCO - Sentco.net, LLC | 4.1K | 65.5K | 2 |
| AS29302US | HSI-EUROPE Hosting Services Inc | 4.1K | — | 1 |
| AS26661US | JCPS-ASN - Jeffco Public Schools | 4.1K | — | 3 |