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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: NIX.CZ: Public peering VLAN
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 193.150.128.0/20 | 4.1K |
0.0%
|
FIBER TELECOM s.r.o. | CZ | — | — |
| 146.255.24.0/21 | 2.0K |
0.0%
|
FIBER TELECOM s.r.o. | CZ | — | — |
| 193.150.144.0/21 | 2.0K |
0.0%
|
FIBER TELECOM s.r.o. | CZ | — | — |
| 45.159.110.0/23 | 512 |
0.0%
|
FIBER TELECOM s.r.o. | CZ | — | — |
| 45.159.110.0/24 | 256 |
0.0%
|
FIBER TELECOM s.r.o. | CZ | — | — |
| 91.224.59.0/24 | 256 |
98.0%
|
FIBER TELECOM s.r.o. | CZ | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS50833 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 |
|---|---|---|
| 146.255.24.0/21 | 145,295 | 2026-07-31 16:21:30 |
| 193.150.128.0/20 | 142,052 | 2026-07-31 16:21:30 |
| 193.150.144.0/21 | 134,128 | 2026-07-31 16:21:30 |
| 45.159.110.0/23 | 96,172 | 2026-07-13 06:46:18 |
| 91.224.59.0/24 | 7,166 | 2026-07-31 16:47:59 |
| 45.159.110.0/24 | 3,834 | 2026-07-31 16:47:59 |
Frequently Asked Questions
What is AS50833?
AS50833 is an Autonomous System Number assigned to FIBER TELECOM s.r.o.. 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 AS50833 announce?
AS50833 announces 9.0K IPv4 addresses distributed across 6 routed CIDR prefixes. The network is registered in Czechia.
Who operates AS50833?
AS50833 is operated by FIBER TELECOM s.r.o.. The organization is based in Czechia. You can view all IP ranges and related ASNs on the organization page.
What country is AS50833 registered in?
AS50833 is registered in Czechia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
