Autonomous System
AS6406 Thomas Jefferson National Accelerator Facility
GovernmentActiveUnited StatesARIN
AS6406 (CEBAF) is a government network operated by Thomas Jefferson National Accelerator Facility in United States, registered with ARIN. It has 2 IPv4 prefixes with 65,792 addresses and 1 IPv6 prefix, which makes it the 3,442nd largest of 82,175 active autonomous systems by IPv4 space.
IPv4 addresses65,792in 2 prefixes
IPv6 prefixes1≈ 1.2 × 10²⁴ addresses
Size rank#3,442of 82,175 active ASNs
Details
OrganizationThomas Jefferson National Accelerator Facility
AS nameCEBAF
Websitejlab.org
Country United States (US)
Network typeGovernment
RegistryARIN
Abuse contactabuse@jlab.org
Registered1996-04-02
Last updated2024-12-12
IPv4 prefixes
2 prefixes · 65,792 addresses| Network | Addresses | First – last address |
|---|---|---|
| 129.57.0.0/16 | 65,536 | 129.57.0.0 – 129.57.255.255 |
| 192.70.245.0/24 | 256 | 192.70.245.0 – 192.70.245.255 |
129.57.0.0/16 192.70.245.0/24
IPv6 prefixes
1 prefix- 2620:0:22f0::/48
2620:0:22f0::/48
Query AS6406 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS6406&key=YOUR_API_KEY"Any address in its prefixes resolves to AS6406, with or without a key:
curl "https://api.ipapi.is/?q=129.57.0.1"Largest networks in United States
AS749 United States Department of Defense (DoD)227,398,912 IPv4 addressesAS16509 Amazon.com, Inc.217,891,584 IPv4 addressesAS7018 AT&T Enterprises, LLC117,261,568 IPv4 addressesAS8075 Microsoft Corporation81,459,968 IPv4 addressesAS721 United States Department of Defense (DoD)72,922,368 IPv4 addressesAS7922 Comcast Cable Communications, LLC68,336,896 IPv4 addresses