Autonomous system
AS8666 FIBERLINK-AS
Unclassified RIPE
Summary
FiberLink GmbH
hosting legacy
FIBERLINK-AS is FiberLink GmbH of Vienna — an Austrian company, not a German one, despite the GmbH in the name. It grew out of the Austrian hosting scene of the mid-2000s and today sells network and IT services from data centres in Vienna, plus presence in Berlin, Frankfurt and Munich.
What it's used for
- Hosting, colocation and managed network services. The name suggests a fibre access carrier, but the business is server-side infrastructure.
Notable
- The IPv4 footprint is minimal: two /24s (512 addresses) against six IPv6 prefixes — an unusually IPv6-weighted inventory for a legacy ASN, and a sign the network was built out long after the v4 free pool ran dry.
- Only three observed BGP neighbours, and the prefixes were first seen in 2016. The AS number is low, but the routing history is not: this is a modern network operating an early-numbered ASN, so no early-internet claim is made for it.
- No PTRs were returned on the addresses sampled. That is not proof the zones are undelegated — it simply means reverse DNS offers no independent read here, and the classification rests on the operator's stated business.
- A distinct AS8666 should not be confused with AS33890, also registered to FiberLink GmbH.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 512 addresses IPv6 6 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AT | Austria | 7 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS8666- Registry name
- FIBERLINK-AS
- Registrant
- MNT-FIBERLINK
- Abuse contact
- abuse@fiberlink.at
- Registered
- 2015-10-12
- Last changed
- 2021-05-09
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 8 valid, 0 with no ROA
- ROAs
- 3 authorising AS8666
- ASPA
- no ASPA record
- IRR
- 100% registered · 8 of 8 announcements
- Route objects
- 4 naming AS8666
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,781 prefixes, as published 2026-10-16. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere