AS25021 — CIEF-AS Etat de Fribourg, SITel
AS25021 announces 2 IPv4 prefixes covering 131,072 addresses and 0 IPv6 prefixes.
About this network
CIEF-AS is the autonomous system for the Etat de Fribourg, the cantonal government of Fribourg in Switzerland.
What it's used for
- The address space is registered under the netnames ETATFR2 and ETATFR, both assigned to the Etat de Fribourg, indicating a dedicated government network.
- The AS announces 131072 IPv4 addresses across 2 prefixes (155.228.0.0/16 and 156.25.0.0/16) with only 2 observed neighbours, a ratio consistent with an internal corporate or government estate rather than a transit provider.
Notable
- The registrants for both announced prefixes match the announcer, identified as Etat de Fribourg.
- The inventory consists of two contiguous /16 blocks, suggesting a finely subdivided internal network structure typical of large institutional operators.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 155.228.0.0/16
- 156.25.0.0/16
Upstream networks
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