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 4 internet exchanges: BIX.BG: Main, B-IX, NetIX: NetIX, GNM-IX
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS39251 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 |
|---|---|---|
| 91.207.191.0/24 | 6,342 | 2026-07-23 15:08:59 |
| 91.207.190.0/24 | 6,339 | 2026-07-23 15:08:59 |
| 85.217.255.0/24 | 6,307 | 2026-07-15 19:04:49 |
| 193.37.238.0/24 | 6,178 | 2026-07-23 15:51:45 |
| 85.217.254.0/24 | 6,174 | 2026-07-15 19:04:49 |
| 91.92.76.0/24 | 5,943 | 2026-07-23 15:08:59 |
| 91.92.75.0/24 | 5,938 | 2026-07-23 15:08:59 |
| 109.160.52.0/24 | 5,880 | 2026-07-23 15:08:59 |
| 109.160.55.0/24 | 5,874 | 2026-07-23 15:08:59 |
| 109.160.54.0/24 | 5,872 | 2026-07-23 15:08:59 |
| 185.163.140.0/24 | 5,501 | 2026-07-23 15:08:59 |
| 185.163.141.0/24 | 5,480 | 2026-07-23 15:08:59 |
| 91.92.74.0/24 | 5,360 | 2026-07-23 15:08:59 |
| 91.92.73.0/24 | 5,349 | 2026-07-23 15:08:59 |
| 109.160.53.0/24 | 5,319 | 2026-07-23 15:08:59 |
| 185.225.84.0/22 | 5,308 | 2026-07-23 15:08:59 |
| 91.92.72.0/21 | 4,912 | 2026-07-23 15:52:33 |
| 85.130.72.0/22 | 4,907 | 2026-07-23 15:52:33 |
| 91.92.80.0/22 | 4,896 | 2026-07-23 15:52:33 |
| 85.130.75.0/24 | 4,883 | 2026-07-23 15:46:49 |
| 85.130.73.0/24 | 4,872 | 2026-07-23 15:46:49 |
| 91.92.92.0/22 | 4,864 | 2026-07-23 15:52:33 |
| 91.207.190.0/23 | 4,862 | 2026-07-23 15:46:49 |
| 91.92.79.0/24 | 4,857 | 2026-07-23 15:52:33 |
| 77.76.16.0/20 | 4,851 | 2026-07-23 15:46:49 |
| 91.92.83.0/24 | 4,847 | 2026-07-23 15:46:49 |
| 91.92.81.0/24 | 4,846 | 2026-07-23 15:52:33 |
| 91.92.78.0/24 | 4,844 | 2026-07-23 15:52:33 |
| 85.130.72.0/24 | 4,842 | 2026-07-23 15:46:49 |
| 91.92.82.0/24 | 4,840 | 2026-07-23 15:46:49 |
| 91.92.80.0/24 | 4,840 | 2026-07-23 15:52:33 |
| 91.92.103.0/24 | 4,829 | 2026-07-23 15:46:49 |
| 85.130.74.0/24 | 4,828 | 2026-07-23 15:46:49 |
| 195.238.84.0/23 | 4,827 | 2026-07-23 15:52:33 |
| 91.92.97.0/24 | 4,825 | 2026-07-23 15:46:49 |
| 91.92.102.0/24 | 4,822 | 2026-07-23 15:46:49 |
| 91.223.66.0/24 | 4,822 | 2026-07-23 15:46:49 |
| 91.92.89.0/24 | 4,820 | 2026-07-23 15:46:49 |
| 91.92.101.0/24 | 4,819 | 2026-07-23 15:46:49 |
| 91.92.96.0/24 | 4,818 | 2026-07-23 15:46:49 |
| 91.92.99.0/24 | 4,818 | 2026-07-23 15:46:49 |
| 91.92.72.0/24 | 4,817 | 2026-07-23 15:46:49 |
| 91.92.98.0/24 | 4,816 | 2026-07-23 15:46:49 |
| 91.92.90.0/24 | 4,813 | 2026-07-23 15:46:49 |
| 91.92.100.0/24 | 4,813 | 2026-07-23 15:46:49 |
| 91.92.95.0/24 | 4,812 | 2026-07-23 15:46:49 |
| 91.92.91.0/24 | 4,811 | 2026-07-23 15:46:49 |
| 91.92.92.0/24 | 4,808 | 2026-07-23 15:46:49 |
| 91.245.192.0/24 | 4,798 | 2026-07-23 15:46:49 |
| 91.92.86.0/24 | 4,789 | 2026-07-23 15:46:49 |
Showing top 50 of 75 announced prefixes by sample volume.
Frequently Asked Questions
What is AS39251?
AS39251 is an Autonomous System Number assigned to Netguard LLC. 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 AS39251 announce?
AS39251 announces 22.8K IPv4 addresses distributed across 23 routed CIDR prefixes. The network is registered in Bulgaria.
Who operates AS39251?
AS39251 is operated by Netguard LLC. The organization is based in Bulgaria. You can view all IP ranges and related ASNs on the organization page.
What country is AS39251 registered in?
AS39251 is registered in Bulgaria. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
