Autonomous System
AS1835 Forskningsnettet - Danish network for Research and Education
ISPActiveEuropean UnionRIPE
AS1835 (FSKNET-DK) is an ISP network operated by Forskningsnettet - Danish network for Research and Education in European Union, registered with RIPE. It has 5 IPv4 prefixes with 164,352 addresses and 3 IPv6 prefixes, which makes it the 1,502nd largest of 82,141 active autonomous systems by IPv4 space.
IPv4 addresses164,352in 5 prefixes
IPv6 prefixes3≈ 4.0 × 10²⁹ addresses
Size rank#1,502of 82,141 active ASNs
Details
OrganizationForskningsnettet - Danish network for Research and Education
AS nameFSKNET-DK
Websitedeic.dk
Country European Union (EU)
Network typeISP
RegistryRIPE
Abuse contact—
Registered2002-09-19
Last updated2026-05-29
IPv4 prefixes
5 prefixes · 164,352 addresses| Network | Addresses | First – last address |
|---|---|---|
| 130.225.0.0/16 | 65,536 | 130.225.0.0 – 130.225.255.255 |
| 130.226.0.0/16 | 65,536 | 130.226.0.0 – 130.226.255.255 |
| 192.38.0.0/17 | 32,768 | 192.38.0.0 – 192.38.127.255 |
| 193.3.238.0/24 | 256 | 193.3.238.0 – 193.3.238.255 |
| 193.163.46.0/24 | 256 | 193.163.46.0 – 193.163.46.255 |
130.225.0.0/16 130.226.0.0/16 192.38.0.0/17 193.3.238.0/24 193.163.46.0/24
IPv6 prefixes
3 prefixes- 2001:878::/30
- 2001:878::/32
- 2001:7f8:1f::/48
2001:878::/30 2001:878::/32 2001:7f8:1f::/48
Query AS1835 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=AS1835&key=YOUR_API_KEY"Any address in its prefixes resolves to AS1835, with or without a key:
curl "https://api.ipapi.is/?q=130.225.0.1"