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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 | 3,136 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.5M | 20,721 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 73.1M | 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC |
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.
| 68.3M |
| 366 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 66.4M | 1,106 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 47.9M | 3,574 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,926 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.2M | 4,508 |
| 63.7K |
| 65.5K |
| 28 |
| AS13370US | NWF-LOCALTEL-ASN-1 - Ziply Fiber | 63.7K | 65.5K | 20 |
| AS8175US | HIGHSPEEDWEB - High Speed Web/Genesis 2 Networks | 63.7K | — | 6 |
| AS26439US | CITY-OF-ABQ - City of Albuquerque | 63.5K | — | 12 |
| AS40237US | UNITED-TELEPHONE - United Telephone Company | 63.5K | 65.5K | 11 |
| AS396986US | BYTEDANCE - Bytedance Inc. | 63.2K | 102 | 317 |
| AS3481US | STOFCT-DOIT - State of Connecticut | 63.2K | — | 16 |
| AS33544US | WILINE - WiLine Networks Inc. | 63.2K | 68.2K | 68 |
| AS7332US | LIGHTBOUND-AS - LightBound, LLC | 63.2K | 65.5K | 12 |
| AS5693US | DATABANK-LATISYS - Latisys-Irvine, LLC | 63K | 65.5K | 27 |
| AS62610US | ZEN-DPS - Zenlayer Inc | 62.7K | 1M | 324 |
| AS12097US | MASSCOM - Massillon Cable Communications | 62.7K | 65.5K | 25 |
| AS7341US | VELOCITY - Velocity Network, Inc. | 62.5K | — | 9 |
| AS14230US | INVOLTA - ARK Data Centers LLC | 62.2K | 2.1K | 81 |
| AS14921US | CENTURYLINK-LEGACY-EMBARQ-HDRV - CenturyLink Communications, LLC | 62K | — | 34 |
| AS19653US | CTSTELECOM - CTS Communications Corp | 62K | 65.5K | 10 |
| AS12180US | INTERNAP-2BLK - Unitas Global | 61.7K | 65.5K | 47 |
| AS22611US | INMOTION - InMotion Hosting, Inc. | 61.7K | 6 | 96 |
| AS22644US | TJUH - Thomas Jefferson University Hospitals, Inc. | 61.7K | 4.9K | 22 |
| AS14103US | ACDNET-ASN1 - ACD.net | 61.4K | 65.5K | 36 |
| AS53257US | ASN1 - The Citadel | 61.4K | — | 22 |
| AS14090US | NDTELCO - North Dakota Telephone Co. | 61.4K | — | 44 |
| AS3810US | VWMX-AS - Volkswagen Group of America, Inc. | 61.4K | — | 16 |
| AS53435US | JACKSONENERGY-EPLUS - JACKSON ENERGY AUTHORITY | 60.9K | 65.5K | 26 |
| AS395793US | ARISK-COMMUNICATIONS-INC - Arisk Communications inc. | 60.7K | — | 214 |
| AS11602US | SDSMT-AS - South Dakota School of Mines & Technology | 60.4K | — | 6 |
| AS11955US | TWC-11955-ATLANTA - Charter Communications Inc | 60.2K | 397.9K | 35 |
| AS42US | WOODYNET-1 - WoodyNet, Inc. | 59.6K | 219 | 389 |
| AS4927US | IMPU - Aseva LLC | 59.6K | 69.6K | 15 |
| AS39961US | CCSF - San Francisco Department of Telecommunications and Information Services | 59.6K | — | 12 |
| AS13354US | ZC38-AS1 - zColo | 59.6K | 65.5K | 12 |
| AS27425US | ASN-IDK-27425 - IdeaTek Telcom, LLC | 59.6K | 1.2M | 100 |
| AS40244US | TURNKEY-INTERNET - Turnkey Internet Inc. | 59.4K | 66.6K | 48 |
| AS26464US | JOYENT-INC-US - Joyent, Inc. | 59.4K | — | 128 |
| AS7784US | ATLANTECH - Atlantech Online, Inc. | 59.4K | 65.5K | 12 |
| AS32522US | MULTNOMAH-ESD - Multnomah Education Service District | 59.4K | 327.7K | 14 |
| AS13485US | GCU - Grand Canyon University | 59.4K | — | 11 |
| AS40702US | CLEARWAVE-COMMUNICATIONS - Clearwave Communications | 59.4K | — | 74 |
| AS15085US | IMMEDION - Immedion, LLC | 59.4K | 65.5K | 113 |
| AS30475US | WEHOSTWEBSITES-COM - Handy Networks, LLC | 59.4K | 65.5K | 35 |
| AS3573US | ACCENTURE - Accenture LLP | 59.4K | 329.3K | 470 |
| AS14828US | HBCI-1999TA - Hiawatha Broadband Communications, Inc | 59.1K | 65.5K | 18 |
| AS6222US | CENTURYLINK-LEGACY-EMBARQ-CLTN - CenturyLink Communications, LLC | 59.1K | — | 37 |
| AS32953US | MHCV-AS1 - Mid-Hudson Cablevision, Inc. | 59.1K | 1M | 11 |
| AS40933US | TRIANGLE-COMMUNICATIONS - Triangle Communications | 58.9K | — | 142 |
| AS13825US | TROYCABLE-NET - Troy Cablevision, Inc. | 58.9K | — | 12 |
| AS7393US | CYBERCON - CYBERCON, INC. | 58.6K | 65.5K | 142 |