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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 | 24,372 |
| 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.
32,235 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. | 44.9M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,275 |
| 59.4K |
| 16.4K |
| 21 |
| AS26464US | JOYENT-INC-US - Joyent, Inc. | 59.4K | — | 128 |
| AS15085US | IMMEDION - Immedion, LLC | 59.4K | 65.5K | 113 |
| AS40702US | CLEARWAVE-COMMUNICATIONS - Clearwave Communications | 59.4K | — | 74 |
| AS42US | WOODYNET-1 - WoodyNet, Inc. | 59.6K | 220 | 390 |
| AS7784US | ATLANTECH - Atlantech Online, Inc. | 59.6K | 65.6K | 14 |
| AS13354US | ZC38-AS1 - zColo | 59.6K | 65.5K | 12 |
| AS12208US | TRUVISTA - TruVista Communications | 59.6K | 66.6K | 252 |
| AS53435US | JACKSONENERGY-EPLUS - JACKSON ENERGY AUTHORITY | 59.6K | 65.5K | 22 |
| AS12180US | INTERNAP-2BLK - Unitas Global | 59.6K | 65.5K | 46 |
| AS39961US | CCSF - San Francisco Department of Telecommunications and Information Services | 59.9K | — | 13 |
| AS14103US | ACDNET-ASN1 - ACD.net | 59.9K | 65.5K | 30 |
| AS11955US | TWC-11955-ATLANTA - Charter Communications Inc | 60.2K | 397.9K | 35 |
| AS3801US | MISNET - Mikrotec Internet Services | 60.2K | 131.1K | 68 |
| AS18859US | GVEC-NET - GVEC.net, LLC | 60.4K | 65.5K | 13 |
| AS19009US | ONECLEVELAND - OneCleveland | 60.4K | 65.5K | 83 |
| AS11602US | SDSMT-AS - South Dakota School of Mines & Technology | 60.4K | — | 6 |
| AS396986US | BYTEDANCE - Bytedance Inc. | 60.9K | 97 | 307 |
| AS397373US | H4Y-TECHNOLOGIES - H4Y Technologies LLC | 61.4K | 19 | 217 |
| AS14090US | NDTELCO - North Dakota Telephone Co. | 61.4K | — | 44 |
| AS53257US | ASN1 - The Citadel | 61.4K | — | 22 |
| AS22644US | TJUH - Thomas Jefferson University Hospitals, Inc. | 61.7K | 4.9K | 22 |
| AS14921US | CENTURYLINK-LEGACY-EMBARQ-HDRV - CenturyLink Communications, LLC | 62K | — | 34 |
| AS19653US | CTSTELECOM - CTS Communications Corp | 62K | 65.5K | 10 |
| AS14230US | INVOLTA - ARK Data Centers LLC | 62.5K | 2.1K | 83 |
| AS3481US | STOFCT-DOIT - State of Connecticut | 63.2K | — | 16 |
| AS5693US | DATABANK-LATISYS - Latisys-Irvine, LLC | 63.2K | 65.5K | 26 |
| AS26439US | CITY-OF-ABQ - City of Albuquerque | 63.5K | — | 12 |
| AS33647US | YADTELNET - Yadkin Valley Telephone | 63.7K | 65.5K | 80 |
| AS2165US | HPINC - HP Inc. | 63.7K | 4 | 17 |
| AS25829US | SMITHSONIAN - Smithsonian Institution | 63.7K | 1 | 7 |
| AS16811US | SAGENET-GTH - SageNet LLC | 63.7K | — | 55 |
| AS13370US | NWF-LOCALTEL-ASN-1 - Ziply Fiber | 63.7K | 65.5K | 20 |
| AS33544US | WILINE - WiLine Networks Inc. | 63.7K | 68.2K | 70 |
| AS8175US | HIGHSPEEDWEB - High Speed Web/Genesis 2 Networks | 63.7K | — | 6 |
| AS5663US | EDCNET - Department of Interior United States Geological Survey | 64K | — | 13 |
| AS19151US | BBO-1 - BroadbandONE, LLC | 64K | 65.5K | 41 |
| AS11798US | ACEDATACENTERS-AS-1 - Ace Data Centers, Inc. | 64K | — | 194 |
| AS27425US | ASN-IDK-27425 - IdeaTek Telcom, LLC | 64.3K | 1.2M | 118 |
| AS30567US | IGNITE-BROADBAND - Dickson Electric System | 64.3K | 65.5K | 21 |
| AS20257US | FTC-INET - Farmers Telephone Cooperative, Inc. | 64.3K | 65.5K | 30 |
| AS12097US | MASSCOM - Massillon Cable Communications | 64.8K | 65.5K | 27 |
| AS22653US | GLOBALCOMPASS - Cyber Wurx LLC | 64.8K | 69.6K | 22 |
| AS7296US | AS-DYNASCALE-LAX - Dynascale Technologies, Inc. | 64.8K | 81.9K | 256 |
| AS46293US | MIDWEST-ENERGY-AND-COMMUNICATIONS - Midwest Energy & Communications | 65K | 65.5K | 33 |
| AS14737US | CCCOES - Colorado Community College and Occupational Education System | 65K | — | 8 |
| AS57976US | BLIZZARD Blizzard Entertainment, Inc | 65K | 65.6K | 176 |