AS203303
PE Lavrynenko Sergii Oleksandrovych
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 |
|---|---|---|---|---|---|---|
| 45.10.91.0/24 | 256 |
0.4%
|
PE Lavrynenko Sergii Oleksandrovych | UA | Kyiv Oblast | Piskivka |
| 185.138.228.0/24 | 256 |
0.8%
|
PE Lavrynenko Sergii Oleksandrovych | UA | Kyiv Oblast | Piskivka |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS203303 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 |
|---|---|---|
| 185.138.228.0/24 | 6,754 | 2026-07-31 03:26:40 |
| 45.10.91.0/24 | 6,719 | 2026-07-31 03:26:40 |
Frequently Asked Questions
What is AS203303?
AS203303 is an Autonomous System Number assigned to PE Lavrynenko Sergii Oleksandrovych. 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 AS203303 announce?
AS203303 announces 512 IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Ukraine.
Who operates AS203303?
AS203303 is operated by PE Lavrynenko Sergii Oleksandrovych. The organization is based in Ukraine. You can view all IP ranges and related ASNs on the organization page.
What country is AS203303 registered in?
AS203303 is registered in Ukraine. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
