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.
- Baseline (neutral) 65
- Active-threat / abuse risk −12
- Academic allocation +6
- Trust score 59 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
About Renater
RENATER is the national research and education network in France.
⚠ 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.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 159.84.0.0/16 | AS1945, AS2200 | 2026-11-12 02:23:56 |
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 140.77.0.0/16 | 65.5K |
22.8%
|
Renater | FR | Auvergne-Rhône-Alpes | Lyon |
| 156.18.0.0/16 | 65.5K |
18.3%
|
Renater | FR | Auvergne-Rhône-Alpes | Écully |
| 159.84.0.0/16 | 65.5K |
56.6%
|
Renater | FR | Auvergne-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.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 140.77.0.0/16 | 28,071 | 2026-11-12 02:14:35 |
| 156.18.0.0/16 | 27,938 | 2026-11-12 02:14:35 |
| 192.33.153.0/24 | 26,810 | 2026-11-12 02:14:35 |
| 192.33.162.0/24 | 26,452 | 2026-11-12 02:14:35 |
| 159.84.0.0/16 | 24,437 | 2026-11-12 02:14:35 |
| 152.81.0.0/16 | 1,438 | 2026-11-02 21:34:04 |
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.
Who operates AS1945?
AS1945 is operated by Renater. You can view all IP ranges and related ASNs on the organization page.
