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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. | 218M | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| 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.
32,143 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 | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| — |
| — |
| 0 |
| AS214763US | Akshay-Revankar Akshay Revankar | — | 1 | 1 |
| AS396817US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS210660US | CAVEFOX CaveFox LLC | — | 257 | 2 |
| AS5150US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS401919US | AS401919 - Pinehurst Networks | — | 2 | 2 |
| AS33042US | NETIFACE-TORONTO - Netiface LLC | — | 65.5K | 1 |
| AS4221US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | 2 | 2 |
| AS5326US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS22577US | LOON - Google LLC | — | 16 | 1 |
| AS396575US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS6043US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | 1 | 1 |
| AS396593US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS208884US | FL-791-208884 - flew | — | 1 | 1 |
| AS398507US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS36262US | HASHTABLE-PREMIUM-TIER - HashTable, Inc. | — | 10 | 10 |
| AS398353US | USCIS-ASN-01 - USCIS | — | — | 0 |
| AS40792US | CYBERVERSE - CYBERVERSE | — | 1 | 1 |
| AS397852US | PRIVATELINE-SWITCH-01 - Private Line, LLC | — | — | 0 |
| AS396931US | HOSTROYALE-TECHNOLOGIES-02 - HostRoyale LLC | — | 524.3K | 1 |
| AS5759US | RAINSTORM - Storm Network Systems, LLC | — | — | 0 |
| AS14482US | LAB47 - Lab47 | — | 256 | 1 |
| AS211233US | Ronsor-LLC Ronsor LLC | — | 17 | 2 |
| AS6380US | BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS19388US | TEAM-CYMRU-3 - Team Cymru Inc. | — | 1 | 1 |
| AS6554US | BDM - BDM Federal, Inc. | — | — | 0 |
| AS26701US | AADS - NCRYPTD LLC | — | 1 | 1 |
| AS219525US | DaleNetworks Jevin Dale | — | 1 | 1 |
| AS982US | PACKETFRAME - Packetframe | — | 1 | 1 |
| AS4490US | EMTF-LAK - Air Force Systems Networking | — | — | 0 |
| AS396968US | IMPUT - imput | — | 4 | 4 |
| AS4288US | CENTURYLINK-TSDS-NCJCVL - CenturyLink Communications, LLC | — | — | 0 |
| AS33655US | CMCS - Comcast Cable Communications, LLC | — | 7 | 7 |
| AS4312US | FYI - FYI Networks | — | — | 0 |
| AS402642US | CRLML - Classic | — | 5.2M | 10 |
| AS4145US | UPS-AS4145 - UNITED PARCEL SERVICE | — | — | 0 |
| AS11263US | BELLTOWER - Bell Tower Integration, Inc. | — | 2 | 2 |
| AS4112US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS2010US | INFONET6 - INFONET Services Corporation | — | 1 | 1 |
| AS4031US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS399980US | RFPT - RFPT COMPANY LLC | — | 258 | 3 |
| AS6271US | COGENT-6271 - Cogent Communications, LLC | — | — | 0 |
| AS208812US | ONDRYA Ondrya LLC | — | 1 | 1 |
| AS204091US | rivulet Rivulet Wireless Inc. | — | 80 | 5 |
| AS18932US | STEPBROBD - StepBroBD, Inc. | — | 6 | 6 |
| AS5684US | GANNETT-NET - Gannett Company, Inc. | — | — | 0 |
| AS22503US | METHOD-01 - Method Security Inc | — | 128 | 2 |