AS60016 — ASFS3 Fiberstream 87 AG

AS60016 announces 11 IPv4 prefixes covering 7,936 addresses and 0 IPv6 prefixes.

About this network

ASFS3 is operated by Fiberstream 87 AG.

What it's used for

• The address space carries fiber-to-the-home subscriber traffic, evidenced by netnames such as CH-FS-87-20140627 and Fiberstream-DHCP-Range, and reverse DNS entries like ip-254.fs87.ch.
• The AS announces 7,936 IPv4 addresses across 11 prefixes while maintaining only 1 observed neighbour, a ratio characteristic of an access network terminating local traffic rather than providing transit.
• Traffic from this AS consists of residential and small business internet access provided via fiber infrastructure in the Glarus region of Switzerland.

Notable

• Registrants for the majority of prefixes are Fiberstream 87 AG, while other blocks are registered to EWS AG, Technische Betriebe Glarus, and taNET GmbH, indicating a mix of owned and leased or partner-managed address space.
• The inventory consists of multiple /22 and /23 blocks, with one /24 block explicitly designated for DHCP services.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 93.188.78.0/24
• 185.62.80.0/22
• 185.169.240.0/22
• 185.199.176.0/22
• 185.227.56.0/22
• 185.244.252.0/23
• 185.244.254.0/24
• 194.5.220.0/22
• 213.173.40.0/22
• 213.173.44.0/23
• 213.173.46.0/24

Upstream networks

• AS29655 Trenka Informatik AG

Adjacent networks

• AS29655 Trenka Informatik AG

Routing security

• RPKI: 1 valid, 0 invalid and 10 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 16 route objects.
• Listed in as-sets: AS29655:AS-TRANSIT.