Autonomous System
AS5520 Universitaet zu Koeln
EducationActiveGermanyRIPE
AS5520 (UNI-KOELN) is an education network operated by Universitaet zu Koeln in Germany, registered with RIPE. It has 6 IPv4 prefixes with 68,096 addresses and 1 IPv6 prefix, which makes it the 3,121st largest of 82,141 active autonomous systems by IPv4 space.
IPv4 addresses68,096in 6 prefixes
IPv6 prefixes1≈ 6.3 × 10²⁹ addresses
Size rank#3,121of 82,141 active ASNs
Details
OrganizationUniversitaet zu Koeln
AS nameUNI-KOELN
Websiteuni-koeln.de
Country Germany (DE)
Network typeEducation
RegistryRIPE
Abuse contactabuse@uni-koeln.de
Registered2002-02-04
Last updated2022-07-26
IPv4 prefixes
6 prefixes · 68,096 addresses| Network | Addresses | First – last address |
|---|---|---|
| 134.95.0.0/16 | 65,536 | 134.95.0.0 – 134.95.255.255 |
| 185.240.116.0/22 | 1,024 | 185.240.116.0 – 185.240.119.255 |
| 134.107.216.0/23 | 512 | 134.107.216.0 – 134.107.217.255 |
| 134.107.226.0/23 | 512 | 134.107.226.0 – 134.107.227.255 |
| 134.107.209.0/24 | 256 | 134.107.209.0 – 134.107.209.255 |
| 134.107.225.0/24 | 256 | 134.107.225.0 – 134.107.225.255 |
134.95.0.0/16 185.240.116.0/22 134.107.216.0/23 134.107.226.0/23 134.107.209.0/24 134.107.225.0/24
IPv6 prefixes
1 prefix- 2a00:a200::/29
2a00:a200::/29
Query AS5520 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=AS5520&key=YOUR_API_KEY"Any address in its prefixes resolves to AS5520, with or without a key:
curl "https://api.ipapi.is/?q=134.95.0.1"Largest networks in Germany
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