Autonomous System
AS1657 University of Louisville
EducationActiveUnited StatesARIN
AS1657 (LOUISVILLE) is an education network operated by University of Louisville in United States, registered with ARIN. It has 14 IPv4 prefixes with 196,864 addresses and 1 IPv6 prefix, which makes it the 1,330th largest of 82,141 active autonomous systems by IPv4 space.
IPv4 addresses196,864in 14 prefixes
IPv6 prefixes1≈ 1.2 × 10²⁴ addresses
Size rank#1,330of 82,141 active ASNs
Details
OrganizationUniversity of Louisville
AS nameLOUISVILLE
Websitelouisville.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contacthostmaster@hermes.louisville.edu
Registered1992-03-04
Last updated2021-10-28
IPv4 prefixes
14 prefixes · 196,864 addresses| Network | Addresses | First – last address |
|---|---|---|
| 136.165.0.0/16 | 65,536 | 136.165.0.0 – 136.165.255.255 |
| 136.165.0.0/18 | 16,384 | 136.165.0.0 – 136.165.63.255 |
| 136.165.64.0/18 | 16,384 | 136.165.64.0 – 136.165.127.255 |
| 136.165.128.0/18 | 16,384 | 136.165.128.0 – 136.165.191.255 |
| 136.165.192.0/18 | 16,384 | 136.165.192.0 – 136.165.255.255 |
| 136.165.0.0/19 | 8,192 | 136.165.0.0 – 136.165.31.255 |
| 136.165.32.0/19 | 8,192 | 136.165.32.0 – 136.165.63.255 |
| 136.165.64.0/19 | 8,192 | 136.165.64.0 – 136.165.95.255 |
| 136.165.96.0/19 | 8,192 | 136.165.96.0 – 136.165.127.255 |
| 136.165.128.0/19 | 8,192 | 136.165.128.0 – 136.165.159.255 |
| 136.165.160.0/19 | 8,192 | 136.165.160.0 – 136.165.191.255 |
| 136.165.192.0/19 | 8,192 | 136.165.192.0 – 136.165.223.255 |
| 136.165.224.0/19 | 8,192 | 136.165.224.0 – 136.165.255.255 |
| 136.165.244.0/24 | 256 | 136.165.244.0 – 136.165.244.255 |
136.165.0.0/16 136.165.0.0/18 136.165.64.0/18 136.165.128.0/18 136.165.192.0/18 136.165.0.0/19 136.165.32.0/19 136.165.64.0/19 136.165.96.0/19 136.165.128.0/19 136.165.160.0/19 136.165.192.0/19 136.165.224.0/19 136.165.244.0/24
IPv6 prefixes
1 prefix- 2610:1e0:1800::/48
2610:1e0:1800::/48
Query AS1657 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=AS1657&key=YOUR_API_KEY"Any address in its prefixes resolves to AS1657, with or without a key:
curl "https://api.ipapi.is/?q=136.165.0.1"Largest networks in United States
AS749 United States Department of Defense (DoD)227,398,912 IPv4 addressesAS16509 Amazon.com, Inc.217,931,264 IPv4 addressesAS7018 AT&T Enterprises, LLC117,261,568 IPv4 addressesAS8075 Microsoft Corporation81,468,160 IPv4 addressesAS721 United States Department of Defense (DoD)72,922,368 IPv4 addressesAS7922 Comcast Cable Communications, LLC68,336,896 IPv4 addresses