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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. | 218M | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,143 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| 62.5K |
| 19 |
| 219 |
| AS396986US | BYTEDANCE - Bytedance Inc. | 62.5K | 99 | 319 |
| AS14230US | INVOLTA - ARK Data Centers LLC | 62.5K | 2.1K | 83 |
| AS30567US | IGNITE-BROADBAND - Dickson Electric System | 62.2K | 65.5K | 21 |
| AS14921US | CENTURYLINK-LEGACY-EMBARQ-HDRV - CenturyLink Communications, LLC | 62K | — | 34 |
| AS19653US | CTSTELECOM - CTS Communications Corp | 62K | 65.5K | 10 |
| AS401152US | ADCIL-ASN-01 - Ace Data Centers II, L.L.C. | 62K | 4.1K | 157 |
| AS22644US | TJUH - Thomas Jefferson University Hospitals, Inc. | 61.7K | 4.9K | 22 |
| AS14090US | NDTELCO - North Dakota Telephone Co. | 61.4K | — | 44 |
| AS53257US | ASN1 - The Citadel | 61.4K | — | 22 |
| AS33647US | YADTELNET - Yadkin Valley Telephone | 60.4K | 65.5K | 67 |
| AS18859US | GVEC-NET - GVEC.net, LLC | 60.4K | 65.5K | 13 |
| AS11602US | SDSMT-AS - South Dakota School of Mines & Technology | 60.4K | — | 6 |
| AS11955US | TWC-11955-ATLANTA - Charter Communications Inc | 60.2K | 397.9K | 35 |
| AS19009US | ONECLEVELAND - OneCleveland | 60.2K | 65.5K | 82 |
| AS42US | WOODYNET-1 - WoodyNet, Inc. | 59.9K | 221 | 392 |
| AS22611US | INMOTION - InMotion Hosting, Inc. | 59.9K | 6 | 90 |
| AS14103US | ACDNET-ASN1 - ACD.net | 59.9K | 65.5K | 30 |
| AS7784US | ATLANTECH - Atlantech Online, Inc. | 59.6K | 65.6K | 14 |
| AS53435US | JACKSONENERGY-EPLUS - JACKSON ENERGY AUTHORITY | 59.6K | 65.5K | 22 |
| AS39961US | CCSF - San Francisco Department of Telecommunications and Information Services | 59.6K | — | 12 |
| AS400194US | WIRE3 - Wire 3 LLC | 59.6K | 7.4K | 46 |
| AS12180US | INTERNAP-2BLK - Unitas Global | 59.6K | 65.5K | 46 |
| AS13354US | ZC38-AS1 - zColo | 59.6K | 65.5K | 12 |
| AS12208US | TRUVISTA - TruVista Communications | 59.4K | 66.6K | 251 |
| AS32522US | MULTNOMAH-ESD - Multnomah Education Service District | 59.4K | 327.7K | 14 |
| AS13485US | GCU - Grand Canyon University | 59.4K | — | 11 |
| AS26464US | JOYENT-INC-US - Joyent, Inc. | 59.4K | — | 128 |
| AS15085US | IMMEDION - Immedion, LLC | 59.4K | 65.5K | 113 |
| AS400072US | THUND-20 - THUNDERBOX INC | 59.4K | 16.4K | 21 |
| AS30475US | WEHOSTWEBSITES-COM - Handy Networks, LLC | 59.4K | 65.5K | 35 |
| AS40702US | CLEARWAVE-COMMUNICATIONS - Clearwave Communications | 59.4K | — | 74 |
| AS32953US | MHCV-AS1 - Mid-Hudson Cablevision, Inc. | 59.1K | 1M | 11 |
| AS14828US | HBCI-1999TA - Hiawatha Broadband Communications, Inc | 59.1K | 65.5K | 18 |
| AS6222US | CENTURYLINK-LEGACY-EMBARQ-CLTN - CenturyLink Communications, LLC | 59.1K | — | 37 |
| AS11231US | GETTYSBURG-DOM - GETTYSBURG COLLEGE | 58.9K | — | 22 |
| AS40933US | TRIANGLE-COMMUNICATIONS - Triangle Communications | 58.9K | — | 142 |
| AS13825US | TROYCABLE-NET - Troy Cablevision, Inc. | 58.9K | — | 12 |
| AS4927US | IMPU - Aseva LLC | 58.9K | 69.6K | 12 |
| AS7393US | CYBERCON - CYBERCON, INC. | 58.6K | 65.5K | 142 |
| AS393559US | WEBBING-USA - WEBBING USA, INC. | 58.6K | 1.3K | 147 |
| AS14742US | INTERNAP-BLOCK-4 - Unitas Global | 58.4K | 65.5K | 30 |
| AS18982US | US-SIGNAL-CO01 - US Signal Company, L.L.C. | 58.4K | 65.8K | 12 |
| AS40244US | TURNKEY-INTERNET - Turnkey Internet Inc. | 58.4K | 66.3K | 46 |
| AS19437US | SS-ASH - SECURED SERVERS LLC | 58.1K | 260 | 109 |
| AS397112US | ILLINOIS-MATH-SCIENCE - Illinois Mathematics and Science Academy | 58.1K | — | 6 |
| AS14956US | ROUTERHOSTING - RouterHosting LLC | 57.9K | 19 | 168 |