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
- Enterprise allocation +4
- Trust score 69 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 37.157.191.0/24 | 256 |
99.2%
|
Vivacom Bulgaria EAD | BG | — | — |
| 95.87.209.0/24 | 256 |
99.2%
|
Vivacom Bulgaria EAD | BG | — | — |
| 95.87.255.0/24 | 256 |
99.2%
|
Vivacom Bulgaria EAD | BG | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS43561 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 |
|---|---|---|
| 37.157.191.0/24 | 7,648 | 2026-07-18 11:59:25 |
| 95.87.255.0/24 | 7,626 | 2026-07-18 11:59:25 |
| 95.87.209.0/24 | 7,563 | 2026-07-18 11:59:25 |
Frequently Asked Questions
What is AS43561?
AS43561 is an Autonomous System Number assigned to Vivacom Bulgaria EAD. 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 AS43561 announce?
AS43561 announces 768 IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in Bulgaria.
Who operates AS43561?
AS43561 is operated by Vivacom Bulgaria EAD. The organization is based in Bulgaria. You can view all IP ranges and related ASNs on the organization page.
What country is AS43561 registered in?
AS43561 is registered in Bulgaria. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
