AS8666 — FIBERLINK-AS
AS8666 announces 1 IPv4 prefixes covering 512 addresses and 6 IPv6 prefixes.
About this network
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.
Announced prefixes
- 185.121.52.0/23
- 2a06:9cc7:ff01::/48
- 2a06:9cc7:ff02::/48
- 2a06:9cc7:ff0f::/48
- 2a06:9cc7:ff11::/48
- 2a06:9cc7:ff12::/48
- 2a06:9cc7:ff1f::/48
Upstream networks
Downstream networks
- AS44453 interneX GmbH
Adjacent networks
BGP / ASN / CIDR
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IPv4
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IPv6
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Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED