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
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 10 internet exchanges: Eurasia Peering IX: Peering LAN, SFO-IX: SFO-IX, GNM-IX, PITER-IX Helsinki, PITER-IX Saint-Petersburg: SPB_PEERING_VLAN, PITER-IX Riga: RIX_PEERING_VLAN, PITER-IX Kiev, MSK-IX Moscow: MSK-IX peering network, MSK-IX Rostov-on-Don, Sea-IX
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 31.133.40.0/23 | 512 |
0.0%
|
Level-MSK Ltd. | RU | — | — |
| 31.133.42.0/24 | 256 |
0.0%
|
Level-MSK Ltd. | RU | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS52091 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 |
|---|---|---|
| 31.133.40.0/23 | 41,332 | 2026-08-04 15:59:15 |
| 31.133.42.0/24 | 27,627 | 2026-08-04 15:59:15 |
| 31.133.40.0/24 | 24,087 | 2026-08-04 15:59:15 |
Frequently Asked Questions
What is AS52091?
AS52091 is an Autonomous System Number assigned to Level-MSK Ltd.. 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 AS52091 announce?
AS52091 announces 768 IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Russia.
Who operates AS52091?
AS52091 is operated by Level-MSK Ltd.. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.
What country is AS52091 registered in?
AS52091 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
