AS20539
Technical Centre Radio Systems Ltd.
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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: Giganet IXN: Global exchange
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 31.135.128.0/19 | 8.2K |
0.0%
|
Technical Centre Radio Systems Ltd. | UA | Sumy | Sumy |
| 94.199.160.0/21 | 2.0K |
98.9%
|
Technical Centre Radio Systems Ltd. | UA | Sumy | Sumy |
| 91.201.224.0/22 | 1.0K |
0.0%
|
Technical Centre Radio Systems Ltd. | UA | Sumy | Sumy |
| 194.146.228.0/22 | 1.0K |
98.7%
|
Technical Centre Radio Systems Ltd. | UA | Sumy | Sumy |
| 193.178.228.0/23 | 512 |
88.5%
|
Technical Centre Radio Systems Ltd. | UA | Sumy | Sumy |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS20539 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 |
|---|---|---|
| 91.201.224.0/24 | 15,177 | 2026-07-18 10:52:16 |
| 91.201.225.0/24 | 15,104 | 2026-07-18 10:52:16 |
| 91.201.226.0/24 | 15,055 | 2026-07-18 10:52:16 |
| 31.135.128.0/21 | 14,798 | 2026-07-18 10:52:16 |
| 194.146.230.0/24 | 14,795 | 2026-07-18 10:52:49 |
| 194.146.229.0/24 | 14,777 | 2026-07-18 10:52:49 |
| 31.135.144.0/22 | 14,774 | 2026-07-18 10:52:16 |
| 193.178.229.0/24 | 14,758 | 2026-07-18 10:52:49 |
| 193.178.228.0/24 | 14,758 | 2026-07-18 10:52:49 |
| 31.135.154.0/23 | 14,593 | 2026-07-18 10:52:09 |
| 31.135.148.0/22 | 14,488 | 2026-07-18 10:52:09 |
| 31.135.136.0/21 | 14,380 | 2026-07-18 10:52:09 |
| 91.201.224.0/22 | 11,430 | 2026-07-18 10:52:16 |
| 91.201.227.0/24 | 11,383 | 2026-07-18 10:52:16 |
| 94.199.160.0/21 | 10,935 | 2026-07-18 10:52:16 |
| 194.146.228.0/22 | 10,889 | 2026-07-18 10:52:49 |
| 194.146.231.0/24 | 10,870 | 2026-07-18 10:52:49 |
| 194.146.228.0/24 | 10,860 | 2026-07-18 10:52:49 |
| 193.178.228.0/23 | 10,771 | 2026-07-18 10:52:49 |
| 31.135.152.0/23 | 10,610 | 2026-07-18 10:52:09 |
| 31.135.128.0/19 | 10,550 | 2026-07-18 10:52:16 |
Frequently Asked Questions
What is AS20539?
AS20539 is an Autonomous System Number assigned to Technical Centre Radio Systems 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 AS20539 announce?
AS20539 announces 12.8K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in Ukraine.
Who operates AS20539?
AS20539 is operated by Technical Centre Radio Systems Ltd.. The organization is based in Ukraine. You can view all IP ranges and related ASNs on the organization page.
What country is AS20539 registered in?
AS20539 is registered in Ukraine. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
