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Autonomous System

AS12566

Societe Francaise Du Radiotelephone - SFR SA

Announced IPs
19,712
CIDR prefixes
8
ASN
AS12566

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

70/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Isp allocation +5
  • Trust score 70 / 100

Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →

About SFR

SFR S.A. is a French telecommunications company.

Founded
1987
Headquarters
Paris

Network profile

Source: PeeringDB →
Network type NSP
Geographic scope Regional
Traffic ratio Balanced
Peering policy Selective

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS12566 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
95.181.223.0/24 16,933 2026-10-13 20:48:37
87.255.158.0/23 9,739 2026-10-13 20:48:37
194.153.88.0/23 9,539 2026-10-13 20:48:51
194.153.90.0/24 9,466 2026-10-13 20:48:46
87.255.128.0/19 9,416 2026-10-13 20:48:38
87.255.157.0/24 9,413 2026-10-13 20:48:37
87.255.146.0/24 9,386 2026-10-13 20:48:37
194.153.89.0/24 9,383 2026-10-13 20:48:46
87.255.147.0/24 9,377 2026-10-13 20:48:37
212.23.180.0/23 9,376 2026-10-13 20:49:01
87.255.132.0/22 9,370 2026-10-13 20:48:37
87.255.144.0/23 9,352 2026-10-13 20:48:37
87.255.142.0/23 9,352 2026-10-13 20:48:37
87.255.150.0/24 9,342 2026-10-13 20:48:37
87.255.148.0/23 9,341 2026-10-13 20:48:37
87.255.130.0/23 9,286 2026-10-13 20:48:37
194.153.97.0/24 9,279 2026-10-13 20:48:46
95.181.220.0/22 9,257 2026-10-13 20:48:37
212.23.160.0/19 9,244 2026-10-13 20:49:02
95.181.221.0/24 9,235 2026-10-13 20:48:37
194.153.92.0/24 9,230 2026-10-13 20:48:51
212.23.182.0/24 9,212 2026-10-13 20:49:01
87.255.154.0/24 9,179 2026-10-13 20:48:37
212.23.160.0/23 9,168 2026-10-13 20:49:01
87.255.152.0/23 9,163 2026-10-13 20:48:37
185.39.216.0/22 9,158 2026-10-13 20:48:46
95.181.220.0/24 9,090 2026-10-13 20:48:38

Frequently Asked Questions

What is AS12566?

AS12566 is an Autonomous System Number assigned to Societe Francaise Du Radiotelephone - SFR SA. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS12566 announce?

AS12566 announces 19.7K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in France.

Who operates AS12566?

AS12566 is operated by Societe Francaise Du Radiotelephone - SFR SA. The organization is based in France. You can view all IP ranges and related ASNs on the organization page.

What country is AS12566 registered in?

AS12566 is registered in France. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-10-13 23:39:05 UTC
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