AS12423
Nicolaus Copernicus University in Torun
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
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 158.75.0.0/17 | 32.8K |
28.0%
|
Nicolaus Copernicus University in Torun | PL | Kujawsko-Pomorskie | Torun |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS12423 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 |
|---|---|---|
| 158.75.0.0/17 | 14,062 | 2026-07-23 16:33:21 |
Frequently Asked Questions
What is AS12423?
AS12423 is an Autonomous System Number assigned to Nicolaus Copernicus University in Torun. 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 AS12423 announce?
AS12423 announces 32.8K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Poland.
Who operates AS12423?
AS12423 is operated by Nicolaus Copernicus University in Torun. The organization is based in Poland. You can view all IP ranges and related ASNs on the organization page.
What country is AS12423 registered in?
AS12423 is registered in Poland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
