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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| 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.
32,144 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 | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| 39.7K |
| 65.5K |
| 11 |
| AS13876US | FIBER-64 - FiberLight, LLC | 39.4K | 65.5K | 64 |
| AS36590US | EMERSON-ELECTRIC - Emerson Electric Co. | 39.4K | — | 6 |
| AS6536US | CITYNET - CityNet | 39.4K | 65.5K | 8 |
| AS63473US | HOSTHATCH - HostHatch, LLC | 39.2K | 273 | 140 |
| AS55140US | SHO-ME-TECHNOLOGIES - Sho Me Technologies, LLC | 39.2K | 69.6K | 29 |
| AS402169US | USCLOUD INC - Uscloud Inc | 39.2K | — | 23 |
| AS30277US | DFW-DATACENTER - DFW Datacenter | 39.2K | 65.5K | 23 |
| AS2577US | DNIC-AS-02577 - United States Department of Defense (DoD) | 39.2K | — | 5 |
| AS55081US | 24SHELLS - 24 SHELLS | 39.2K | 262.1K | 20 |
| AS30257US | GEMC - Gibson Electric Membership Corporation | 38.9K | 65.5K | 7 |
| AS19751US | CCRTC - Endeavor Communications | 38.9K | 65.5K | 7 |
| AS19740US | SUDJAM - Sudjam, LLC | 38.7K | 67.1K | 99 |
| AS10857US | JCPENNEY-AS - JCPenney | 38.7K | — | 22 |
| AS11951US | MCSP - Medical Computer Systems | 38.7K | — | 10 |
| AS16700US | CNSNEXT - CNSNext | 38.4K | 65.5K | 13 |
| AS18615US | MAINSTREAM-FIBER - Mainstream Fiber Networks, LLC | 38.4K | 65.5K | 9 |
| AS15204US | ITC-SD-01 - INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC. | 38.4K | 75.1K | 52 |
| AS11808US | UIDAHO - University of Idaho | 38.1K | 256 | 14 |
| AS22702US | RINGSQUARED - RingSquared | 38.1K | — | 40 |
| AS11286US | KEYBANK - KeyBank National Association | 38.1K | — | 24 |
| AS22772US | LOGIN - Login, Inc. | 38.1K | 65.5K | 16 |
| AS12183US | TALKIE-COMMUNICATIONS - Talkie Communications, Inc | 37.9K | 256 | 23 |
| AS32808US | UTAHBROADBAND-AS1 - Utah Broadband LLC | 37.9K | 65.5K | 15 |
| AS12231US | CONWAYCORP - Conway Corporation | 37.9K | — | 14 |
| AS396253US | IBOSS-8-ASN - iboss,inc | 37.9K | 38 | 120 |
| AS29990US | ASN-APPNEXUS - Xandr Inc. | 37.9K | 144 | 49 |
| AS22576US | DATAPIPE-ASN2 - DataPipe, Inc. | 37.9K | — | 8 |
| AS395846US | DIRECTCOMID - Direct Communications Rockland, Inc | 37.6K | 131.3K | 24 |
| AS12179US | INTERNAP-2BLK - Unitas Global | 37.6K | 65.5K | 34 |
| AS398156US | ACE-FIBER-01 - ACE Fiber | 37.6K | 65.5K | 30 |
| AS27138US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 37.4K | — | 136 |
| AS6949US | CHARLES-SCHWAB - Charles Schwab & Co., Inc. | 37.4K | — | 54 |
| AS10692US | DLS-LITH - DLS Internet Services, Inc | 37.4K | — | 6 |
| AS19969US | JOESDATACENTER - CyberCloud Professionals LLC | 37.4K | 65.5K | 22 |
| AS19254US | KOCH-INDUSTRIES - Koch Industries, Inc. | 37.4K | — | 41 |
| AS20432US | NE-FIBER-01 - North East Fiber, LLC | 37.4K | 65.5K | 31 |
| AS20477US | RANDOLPHTELEPHONE - Randolph Telephone Company | 37.4K | — | 22 |
| AS36092US | CENTENE - Centene Corporation | 37.4K | — | 47 |
| AS1255US | SMITHCOLLEGE-AS - Smith College | 37.1K | — | 14 |
| AS11114US | WINTEK-CORP - Wintek Corporation | 37.1K | 131.1K | 9 |
| AS11608US | ATG-11608 - Accretive Networks | 37.1K | 1 | 44 |
| AS6646US | AETNA - Aetna, Inc. | 37.1K | — | 20 |
| AS13886US | CLOUD-SOUTH - Cloud South | 37.1K | — | 119 |
| AS25649US | AYERA-AS - AYERA TECHNOLOGIES, INC. | 37.1K | 65.5K | 25 |
| AS18632US | VOLCANO-VISION - Volcano Vision, Inc. | 36.9K | — | 77 |
| AS10823US | NETCARRIER - NetCarrier, Inc. | 36.9K | 65.5K | 21 |