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Autonomous System

AS1945

Renater

Announced IPs
197,120
CIDR prefixes
5
ASN
AS1945

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

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS1945 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)
159.84.0.0/16 AS1945, AS2200 2026-07-17 18:07:37

AS1945 — global IP footprint

Cities where AS1945 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

CIDRIPsPTR DensityOrganizationCountryStateCity
140.77.0.0/16 65.5K
21.5%
Renater FR Rhône-Alpes Lyon
156.18.0.0/16 65.5K
18.3%
Renater FR Rhône-Alpes Écully
159.84.0.0/16 65.5K
56.9%
Renater FR Rhône-Alpes Lyon
192.33.153.0/24 256
2.3%
Renater FR
192.33.162.0/24 256
0.4%
Renater FR

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS1945 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
156.18.0.0/16 7,569 2026-07-18 10:52:36
192.33.153.0/24 6,067 2026-07-18 10:49:34
192.33.162.0/24 5,964 2026-07-18 10:49:34
140.77.0.0/16 5,554 2026-07-18 10:52:36
159.84.0.0/16 4,961 2026-07-18 10:52:35

Frequently Asked Questions

What is AS1945?

AS1945 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 AS1945 announce?

AS1945 announces 197.1K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in France.

Who operates AS1945?

AS1945 is operated by Renater. The organization is based in France. You can view all IP ranges and related ASNs on the organization page.

What country is AS1945 registered in?

AS1945 is registered in France. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-18 11:25:31 UTC
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