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
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 91.221.252.0/23 | 512 |
0.0%
|
City Net LLC | RU | Rostov Oblast | Gorlovka |
| 91.221.253.0/24 | 256 |
0.0%
|
City Net LLC | RU | Rostov Oblast | Gorlovka |
| 91.221.252.0/25 | 128 |
0.0%
|
City Net LLC | UA | — | — |
| 91.221.252.128/25 | 128 |
0.0%
|
City Net LLC | RU | Rostov Oblast | Gorlovka |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS52131 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 |
|---|---|---|
| 91.221.252.0/24 | 34,194 | 2026-07-28 05:32:39 |
| 91.221.253.0/24 | 34,163 | 2026-07-28 05:32:39 |
Frequently Asked Questions
What is AS52131?
AS52131 is an Autonomous System Number assigned to City.net LLC. 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 AS52131 announce?
AS52131 announces 512 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Russia.
Who operates AS52131?
AS52131 is operated by City Net LLC. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.
What country is AS52131 registered in?
AS52131 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
