AS39246
Optical Structural Network 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
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS39246 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 |
|---|---|---|
| 62.192.133.0/24 | 115,669 | 2026-10-15 19:50:26 |
| 85.187.205.0/24 | 35,944 | 2026-10-15 20:35:33 |
| 109.121.178.0/24 | 35,675 | 2026-10-15 20:35:33 |
| 109.121.169.0/24 | 35,657 | 2026-10-15 20:35:33 |
| 77.78.142.0/24 | 26,314 | 2026-10-15 20:35:33 |
| 77.78.141.0/24 | 24,166 | 2026-10-15 20:35:33 |
| 31.193.189.0/24 | 24,064 | 2026-10-15 20:35:33 |
| 109.121.187.0/24 | 23,740 | 2026-10-15 20:35:33 |
| 85.187.204.0/24 | 23,335 | 2026-10-15 20:35:33 |
| 109.121.171.0/24 | 22,798 | 2026-10-15 20:35:33 |
| 77.78.140.0/24 | 22,791 | 2026-10-15 20:35:33 |
| 109.121.179.0/24 | 22,770 | 2026-10-15 20:35:33 |
| 109.121.132.0/24 | 22,400 | 2026-10-15 20:35:33 |
| 109.121.156.0/24 | 22,271 | 2026-10-15 20:35:33 |
| 77.78.133.0/24 | 21,874 | 2026-10-15 20:35:33 |
| 109.121.186.0/24 | 21,438 | 2026-10-15 20:35:33 |
| 109.121.177.0/24 | 21,406 | 2026-10-15 20:35:33 |
| 62.192.132.0/24 | 21,231 | 2026-10-15 20:35:33 |
| 77.78.139.0/24 | 21,143 | 2026-10-15 20:35:33 |
| 109.121.155.0/24 | 21,002 | 2026-10-15 20:35:33 |
| 109.121.188.0/24 | 20,801 | 2026-10-15 20:35:33 |
| 109.121.189.0/24 | 20,560 | 2026-10-15 20:35:34 |
| 109.121.164.0/24 | 20,553 | 2026-10-15 20:35:33 |
| 109.121.185.0/24 | 20,326 | 2026-10-15 20:35:33 |
| 109.121.168.0/24 | 20,251 | 2026-10-15 20:35:33 |
| 77.78.136.0/24 | 19,386 | 2026-10-15 20:35:33 |
| 77.78.129.0/24 | 19,310 | 2026-10-15 20:35:33 |
| 109.121.170.0/24 | 19,094 | 2026-10-15 20:35:33 |
| 77.78.143.0/24 | 18,767 | 2026-10-15 20:35:33 |
| 109.121.150.0/24 | 18,501 | 2026-10-15 20:35:33 |
| 109.121.167.0/24 | 18,451 | 2026-10-15 20:35:33 |
| 77.78.131.0/24 | 17,464 | 2026-10-15 20:35:33 |
| 77.78.134.0/24 | 17,455 | 2026-10-15 20:35:33 |
| 109.121.157.0/24 | 17,241 | 2026-10-15 20:35:33 |
| 109.121.165.0/24 | 17,219 | 2026-10-15 20:35:33 |
| 109.121.149.0/24 | 17,211 | 2026-10-15 20:35:33 |
| 109.121.129.0/24 | 17,154 | 2026-10-15 20:35:33 |
| 109.121.130.0/24 | 17,082 | 2026-10-15 20:35:33 |
| 109.121.184.0/24 | 17,024 | 2026-10-15 20:35:33 |
| 77.78.135.0/24 | 16,911 | 2026-10-15 20:35:33 |
| 109.121.131.0/24 | 16,908 | 2026-10-15 20:35:33 |
| 77.78.137.0/24 | 16,874 | 2026-10-15 20:35:33 |
| 77.78.138.0/24 | 16,871 | 2026-10-15 20:35:33 |
| 77.78.128.0/24 | 16,849 | 2026-10-15 20:35:33 |
| 77.78.132.0/24 | 16,794 | 2026-10-15 20:35:33 |
| 109.121.154.0/24 | 16,698 | 2026-10-15 20:35:33 |
| 109.121.151.0/24 | 16,683 | 2026-10-15 20:35:33 |
| 109.121.158.0/24 | 16,676 | 2026-10-15 20:35:33 |
| 109.121.148.0/24 | 16,662 | 2026-10-15 20:35:33 |
| 109.121.176.0/24 | 16,644 | 2026-10-15 20:35:33 |
Frequently Asked Questions
What is AS39246?
AS39246 is an Autonomous System Number assigned to Optical Structural Network 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 AS39246 announce?
AS39246 announces 12.8K IPv4 addresses distributed across 20 routed CIDR prefixes. The network is registered in Bulgaria.
Who operates AS39246?
AS39246 is operated by Optical Structural Network Ltd.. The organization is based in Bulgaria. You can view all IP ranges and related ASNs on the organization page.
What country is AS39246 registered in?
AS39246 is registered in Bulgaria. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
