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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 20,988 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,578 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,934 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.3M | 4,544 |
| 40.2K |
| — |
| 15 |
| AS30569US | CREIGHTON-AS - Creighton University | 39.9K | — | 48 |
| AS3801US | MISNET - Mikrotec Internet Services | 39.9K | 131.1K | 67 |
| AS394449US | FYBERCOM - FyberCom, LLC | 39.7K | 65.5K | 28 |
| AS11079US | ZAYO-CAN-11079 - Zayo Bandwidth | 39.7K | — | 28 |
| AS27325US | DATABANK-ZCOLO - zColo | 39.7K | 65.5K | 11 |
| AS22051US | BTES-AS - Bristol Tennessee Essential Services | 39.7K | — | 80 |
| AS13876US | FIBER-64 - FiberLight, LLC | 39.4K | 65.5K | 64 |
| AS18862US | NCS-HEALTHCARE - Omnicare, Inc. | 39.4K | — | 20 |
| AS6536US | CITYNET - CityNet | 39.4K | 65.5K | 8 |
| AS36590US | EMERSON-ELECTRIC - Emerson Electric Co. | 39.4K | — | 6 |
| AS18701US | PPCO-US - ConocoPhillips Company | 39.4K | — | 42 |
| AS55081US | 24SHELLS - 24 SHELLS | 39.2K | 262.1K | 20 |
| AS55140US | SHO-ME-TECHNOLOGIES - Sho Me Technologies, LLC | 39.2K | 69.6K | 29 |
| AS30277US | DFW-DATACENTER - DFW Datacenter | 39.2K | 65.5K | 23 |
| AS2577US | DNIC-AS-02577 - United States Department of Defense (DoD) | 39.2K | — | 5 |
| AS22302US | INOC - INOC, LLC | 39.2K | 67.6K | 33 |
| AS30257US | GEMC - Gibson Electric Membership Corporation | 38.9K | 65.5K | 7 |
| AS11951US | MCSP - Medical Computer Systems | 38.9K | — | 11 |
| AS22702US | RINGSQUARED - RingSquared | 38.9K | — | 42 |
| AS19751US | CCRTC - Endeavor Communications | 38.9K | 65.5K | 7 |
| AS27138US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 38.9K | — | 144 |
| AS19740US | SUDJAM - Sudjam, LLC | 38.9K | 67.1K | 100 |
| AS36545US | BLEDSOE - Bledsoe Telephone Cooperative Corporation | 38.7K | — | 38 |
| AS10857US | JCPENNEY-AS - JCPenney | 38.7K | — | 22 |
| AS17310US | BVU-2 - Point Broadband Fiber Holding, LLC | 38.4K | — | 12 |
| AS16700US | CNSNEXT - CNSNext | 38.4K | 65.5K | 13 |
| 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 |
| AS22772US | LOGIN - Login, Inc. | 38.1K | 65.5K | 16 |
| AS40294US | CHARTER-40294-DC - Charter Communications LLC | 38.1K | 32 | 18 |
| AS11808US | UIDAHO - University of Idaho | 38.1K | 256 | 14 |
| AS29930US | TWRS-CBB - Towerstream I, Inc. | 38.1K | — | 11 |
| AS22576US | DATAPIPE-ASN2 - DataPipe, Inc. | 37.9K | — | 8 |
| AS32808US | UTAHBROADBAND-AS1 - Utah Broadband LLC | 37.9K | 65.5K | 15 |
| AS29990US | ASN-APPNEXUS - Xandr Inc. | 37.9K | 144 | 49 |
| AS12231US | CONWAYCORP - Conway Corporation | 37.9K | — | 14 |
| AS12183US | TALKIE-COMMUNICATIONS - Talkie Communications, Inc | 37.9K | 256 | 23 |
| AS3064US | AFFINITY-FTL - Ntirety, Inc. | 37.9K | 1 | 50 |
| AS11286US | KEYBANK - KeyBank National Association | 37.9K | — | 23 |
| AS12179US | INTERNAP-2BLK - Unitas Global | 37.6K | 65.5K | 34 |
| AS398156US | ACE-FIBER-01 - ACE Fiber | 37.6K | 65.5K | 30 |
| AS6949US | CHARLES-SCHWAB - Charles Schwab & Co., Inc. | 37.6K | — | 55 |
| AS19969US | JOESDATACENTER - CyberCloud Professionals LLC | 37.4K | 65.8K | 23 |
| AS10692US | DLS-LITH - DLS Internet Services, Inc | 37.4K | — | 6 |
| AS19254US | KOCH-INDUSTRIES - Koch Industries, Inc. | 37.4K | — | 41 |
| AS20477US | RANDOLPHTELEPHONE - Randolph Telephone Company | 37.4K | — | 22 |