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Autonomous System

AS2457

Renater

Announced IPs
131,072
CIDR prefixes
2
ASN
AS2457

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.

59/100
Caution
How this score is built
  • Baseline (neutral) 65
  • Active-threat / abuse risk −12
  • Academic allocation +6
  • Trust score 59 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About Renater

RENATER is the national research and education network in France.

Founded
1993
Headquarters
Paris
Industry
research and development in other physical and natural sciences

⚠ 2 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS2457 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
147.94.0.0/16 AS2200, AS2457 2026-09-11 05:25:52
139.124.0.0/16 AS2200, AS2457 2026-09-11 05:25:52

AS2457 — global IP footprint

Cities where AS2457 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS2457 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
147.94.0.0/16 15,775 2026-09-11 05:14:22
139.124.0.0/16 15,699 2026-09-11 05:14:22

Frequently Asked Questions

What is AS2457?

AS2457 is an Autonomous System Number assigned to Renater. 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 AS2457 announce?

AS2457 announces 131.1K IPv4 addresses distributed across 2 routed CIDR prefixes.

Who operates AS2457?

AS2457 is operated by Renater. You can view all IP ranges and related ASNs on the organization page.

Last updated: 2026-09-11 05:26:08 UTC
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