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 →
Network profile
Source: PeeringDB →Present at 13 internet exchanges: SOX Serbia, VIX, NetIX: NetIX, Balcan-IX, BIX.BG: Main, MegaIX Sofia: MegaIX, GNM-IX UA, Global-IX, B-IX, GNM-IX, …
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 88.218.139.0/24 | 256 |
65.6%
|
Serbian Open Exchange DOO | RS | — | — |
| 91.245.214.0/24 | 256 |
99.2%
|
Serbian Open Exchange DOO | RS | — | — |
| 188.120.127.0/24 | 256 |
49.2%
|
Serbian Open Exchange DOO | RS | — | — |
| 193.105.163.0/24 | 256 |
87.5%
|
Serbian Open Exchange DOO | RS | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS13004 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 |
|---|---|---|
| 193.105.163.0/24 | 29,909 | 2026-07-23 23:40:31 |
| 88.218.139.0/24 | 15,352 | 2026-07-24 00:04:10 |
| 188.120.127.0/24 | 14,649 | 2026-07-24 00:04:10 |
| 91.245.214.0/24 | 13,519 | 2026-07-24 00:04:10 |
Frequently Asked Questions
What is AS13004?
AS13004 is an Autonomous System Number assigned to Serbian Open Exchange DOO. 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 AS13004 announce?
AS13004 announces 1.0K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in Serbia.
Who operates AS13004?
AS13004 is operated by Serbian Open Exchange DOO. The organization is based in Serbia. You can view all IP ranges and related ASNs on the organization page.
What country is AS13004 registered in?
AS13004 is registered in Serbia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
