AS42541 Fiberby ApS 🇩🇰 DK
Announcing 6 prefixes, seen at the RIS collectors.
IPv4 prefixes
5
11,008 (43 × /24)
IPv6 prefixes
1
8 × /32
Upstreams
2
transit providers observed
Peers
27
settlement-free adjacencies
Downstreams
5
transit customers observed
Customer cone
9
ASes reachable through it
Registry and operator data
- AS number
- AS42541
- Name
- Fiberby ApS
- Organisation
- Fiberby
- Country
- 🇩🇰 DK
- RIR
- RIPENCC
- Allocated
- 2009-11-13
- Network type
- Cable/DSL/ISP
- Traffic levels
- 100-200Gbps
- Scope
- Regional
- Peering policy
- Open
- IRR as-set
- RIPE::AS-FIBERBY
- Website
- https://fiberby.dk/
- Looking glass
- https://bgp.tools/lg/42541
- PeeringDB
- net/5143
- Exchanges
- 14
- Facilities
- 4
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
6 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 89.23.224.0/19 v4 | RPKI valid | 42 | 3454942541 | 2026-09-18 |
| 185.10.220.0/22 v4 | RPKI valid | 42 | 3454942541 | 2026-09-18 |
| 193.104.135.0/24 v4 | RPKI valid | 42 | 3454942541 | 2026-09-18 |
| 193.106.164.0/22 v4 | RPKI valid | 42 | 3454942541 | 2026-09-18 |
| 194.62.216.0/23 v4 | RPKI valid | 42 | 3454942541 | 2026-09-18 |
| 2a03:5440::/29 v6 | RPKI valid | 37 | 3454942541 | 2026-09-18 |