AS5588
T-Mobile Czech Republic a.s.
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
- Active-threat / abuse risk −12
- Mobile allocation +2
- Trust score 55 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 11 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS5588 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 89.234.204.0/24 | AS5588, AS57608 | 2026-09-10 06:40:41 |
| 194.11.216.0/24 | AS5588, AS12912, AS57608 | 2026-09-10 06:40:41 |
| 89.234.205.0/24 | AS5588, AS12912, AS57608 | 2026-09-10 06:40:41 |
| 45.9.233.0/24 | AS5588, AS12912, AS57608 | 2026-09-10 06:40:41 |
| 194.11.132.0/24 | AS5588, AS12912, AS57608 | 2026-09-10 06:40:41 |
| 194.11.220.0/24 | AS5588, AS12912, AS57608 | 2026-09-09 11:10:31 |
| 45.9.234.0/24 | AS5588, AS12912, AS57608 | 2026-09-09 11:10:31 |
| 89.234.238.0/24 | AS5588, AS12912, AS57608 | 2026-09-09 11:10:31 |
| 89.234.233.0/24 | AS5588, AS12912, AS57608 | 2026-09-09 11:10:31 |
| 45.9.235.0/24 | AS5588, AS12912, AS42927, AS57608 | 2026-09-09 11:10:31 |
| 89.234.206.0/24 | AS5588, AS12912, AS57608 | 2026-09-09 11:10:31 |
Network profile
Source: PeeringDB →Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS5588 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 |
|---|---|---|
| 45.9.233.0/24 | 27,991 | 2026-09-10 06:41:15 |
| 193.32.182.0/24 | 27,961 | 2026-09-10 05:43:34 |
| 89.234.238.0/24 | 25,783 | 2026-09-10 06:41:07 |
| 89.234.206.0/24 | 25,408 | 2026-09-10 06:41:07 |
| 89.234.233.0/24 | 24,696 | 2026-09-10 06:41:07 |
| 89.234.234.0/24 | 24,541 | 2026-09-10 06:41:07 |
| 89.234.240.0/24 | 24,259 | 2026-09-10 06:41:07 |
| 89.234.205.0/24 | 23,862 | 2026-09-10 06:41:07 |
| 89.234.241.0/24 | 23,790 | 2026-09-10 06:41:07 |
| 194.11.220.0/24 | 23,761 | 2026-09-10 06:41:15 |
| 194.11.216.0/24 | 23,649 | 2026-09-10 06:41:15 |
| 45.9.234.0/24 | 23,554 | 2026-09-10 06:41:15 |
| 194.11.194.0/24 | 23,509 | 2026-09-09 08:59:50 |
| 193.32.181.0/24 | 23,506 | 2026-09-09 08:59:50 |
| 193.203.58.0/24 | 23,506 | 2026-09-09 08:59:50 |
| 193.203.56.0/24 | 23,497 | 2026-09-09 08:59:50 |
| 193.203.57.0/24 | 23,490 | 2026-09-09 08:59:50 |
| 194.11.132.0/24 | 23,478 | 2026-09-10 06:41:15 |
| 194.88.214.0/24 | 23,459 | 2026-09-09 08:59:50 |
| 194.88.215.0/24 | 23,432 | 2026-09-09 08:59:50 |
| 45.9.235.0/24 | 23,272 | 2026-09-10 06:41:15 |
| 194.149.0.0/19 | 15,599 | 2026-09-10 04:39:21 |
| 91.120.0.0/16 | 15,143 | 2026-09-10 04:37:35 |
| 89.234.204.0/24 | 692 | 2026-09-10 06:41:08 |
| 195.56.13.0/24 | 87 | 2026-09-04 23:56:27 |
| 195.56.20.0/24 | 87 | 2026-09-04 23:56:27 |
Frequently Asked Questions
What is AS5588?
AS5588 is an Autonomous System Number assigned to T-Mobile Czech Republic a.s.. 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 AS5588 announce?
AS5588 announces 43.8K IPv4 addresses distributed across 39 routed CIDR prefixes. The network is registered in Czechia.
Who operates AS5588?
AS5588 is operated by T-Mobile Czech Republic a.s.. The organization is based in Czechia. You can view all IP ranges and related ASNs on the organization page.
What country is AS5588 registered in?
AS5588 is registered in Czechia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
