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 →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 91.135.216.0/21 | 2.0K |
0.3%
|
MTS OJSC | RU | Oryol oblast | Oryol |
| 91.135.212.0/22 | 1.0K |
0.7%
|
MTS OJSC | RU | — | — |
| 91.195.136.0/23 | 512 |
4.5%
|
MTS OJSC | RU | Oryol oblast | Oryol |
| 81.195.164.0/24 | 256 |
0.0%
|
MTS OJSC | RU | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS43720 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 |
|---|---|---|
| 81.195.164.0/24 | 7,240 | 2026-07-30 13:23:28 |
| 91.135.216.0/21 | 6,467 | 2026-07-30 13:23:28 |
| 91.135.212.0/22 | 6,437 | 2026-07-30 13:23:28 |
| 91.195.136.0/23 | 6,394 | 2026-07-30 13:23:28 |
| 91.135.220.0/24 | 6,150 | 2026-07-30 13:23:28 |
| 91.135.221.0/24 | 6,148 | 2026-07-30 13:23:28 |
Frequently Asked Questions
What is AS43720?
AS43720 is an Autonomous System Number assigned to MTS OJSC. 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 AS43720 announce?
AS43720 announces 3.8K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Russia.
Who operates AS43720?
AS43720 is operated by MTS OJSC. The organization is based in Russia. You can view all IP ranges and related ASNs on the organization page.
What country is AS43720 registered in?
AS43720 is registered in Russia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
