AS9149 — GIECB
AS9149 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.
About this network
GIECB is the Groupement des cartes bancaires CB, the French interbank economic-interest grouping (GIE) that governs the "CB" bank-card network shared by France's major banks.
What it's used for
The AS announces a single 193.104.39.0/24, whose sampled reverse DNS resolves under rev.e-rsb.com (the interbank Réseau de Services Bancaires). This is dedicated financial-network infrastructure for card authorisation and interbank messaging, not a public ISP.
Notable
- The CB grouping is the scheme behind the physical "CB" cards carried by essentially every French current account, co-processing transactions alongside Visa and Mastercard.
- A one-/24, two-neighbour footprint is exactly what a private financial-sector AS looks like: minimal public routing, purpose-built for a closed application.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 193.104.39.0/24
Upstream networks
Adjacent networks
BGP / ASN / CIDR
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IPv4
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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