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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 |
| 37.6K |
| 65.5K |
| 32 |
| AS395846US | DIRECTCOMID - Direct Communications Rockland, Inc | 37.6K | 131.3K | 24 |
| AS398156US | ACE-FIBER-01 - ACE Fiber | 37.6K | 65.5K | 30 |
| AS12183US | TALKIE-COMMUNICATIONS - Talkie Communications, Inc | 37.9K | 256 | 23 |
| 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 |
| AS32808US | UTAHBROADBAND-AS1 - Utah Broadband LLC | 37.9K | 65.5K | 15 |
| AS12231US | CONWAYCORP - Conway Corporation | 37.9K | — | 14 |
| AS11286US | KEYBANK - KeyBank National Association | 38.1K | — | 24 |
| AS22772US | LOGIN - Login, Inc. | 38.1K | 65.5K | 16 |
| AS11808US | UIDAHO - University of Idaho | 38.1K | 256 | 14 |
| AS398704US | STACKSINC-BACKBONE - STACKS INC | 38.1K | 16.4K | 110 |
| AS22702US | RINGSQUARED - RingSquared | 38.1K | — | 40 |
| AS15204US | ITC-SD-01 - INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC. | 38.4K | 75.1K | 52 |
| AS18615US | MAINSTREAM-FIBER - Mainstream Fiber Networks, LLC | 38.4K | 65.5K | 9 |
| AS394432US | PEG-SG - PEG TECH INC | 38.4K | — | 24 |
| AS16700US | CNSNEXT - CNSNext | 38.4K | 65.5K | 13 |
| AS10857US | JCPENNEY-AS - JCPenney | 38.7K | — | 22 |
| AS19740US | SUDJAM - Sudjam, LLC | 38.7K | 67.1K | 99 |
| AS11951US | MCSP - Medical Computer Systems | 38.7K | — | 10 |
| AS19751US | CCRTC - Endeavor Communications | 38.9K | 65.5K | 7 |
| AS30257US | GEMC - Gibson Electric Membership Corporation | 38.9K | 65.5K | 7 |
| AS2577US | DNIC-AS-02577 - United States Department of Defense (DoD) | 39.2K | — | 5 |
| AS30277US | DFW-DATACENTER - DFW Datacenter | 39.2K | 65.5K | 23 |
| AS18701US | PPCO-US - ConocoPhillips Company | 39.2K | — | 40 |
| AS55140US | SHO-ME-TECHNOLOGIES - Sho Me Technologies, LLC | 39.2K | 69.6K | 29 |
| AS36590US | EMERSON-ELECTRIC - Emerson Electric Co. | 39.4K | — | 6 |
| AS6536US | CITYNET - CityNet | 39.4K | 65.5K | 8 |
| AS402169US | USCLOUD INC - Uscloud Inc | 39.4K | — | 24 |
| AS27325US | DATABANK-ZCOLO - zColo | 39.7K | 65.5K | 11 |
| AS55081US | 24SHELLS - 24 SHELLS | 39.7K | 262.1K | 22 |
| AS394449US | FYBERCOM - FyberCom, LLC | 39.7K | 65.5K | 28 |
| AS30569US | CREIGHTON-AS - Creighton University | 39.9K | — | 48 |
| AS22051US | BTES-AS - Bristol Tennessee Essential Services | 39.9K | — | 81 |
| AS6597US | COLOBLOX - Coloblox Data Centers Inc | 40.2K | 69.6K | 24 |
| AS396122US | BEC-FIBER - BEC Fiber | 40.2K | 65.5K | 81 |
| AS40294US | CHARTER-40294-DC - Charter Communications LLC | 40.2K | 32 | 20 |
| AS20340US | CALLTOWER - CallTower, Inc. | 40.2K | — | 20 |
| AS10912US | INTERNAP-BLK - Unitas Global | 40.2K | 65.5K | 41 |
| AS22985US | UL-LAFAYETTE-1 - University of Louisiana at Lafayette | 40.2K | — | 15 |
| AS30325US | SSTC-NET-1 - South Slope Cooperative Telephone Company | 40.4K | 65.5K | 70 |
| AS17380US | PROJ-MUT-TEL - Project Mutual Telephone Cooperative Association, Inc. | 40.4K | — | 32 |
| AS13876US | FIBER-64 - FiberLight, LLC | 40.4K | 65.5K | 68 |
| AS18862US | NCS-HEALTHCARE - Omnicare, Inc. | 40.7K | — | 22 |
| AS12213US | CNSQ-AS12213 - Centersquare | 40.7K | 3.8K | 51 |
| AS6341US | WEC - WEC Business Services LLC | 41K | — | 6 |