109.183.205.154
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
- Long-established allocation (17y) +6
- Not on any threat blocklist +5
- Mobile allocation +2
- Trust score 78 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
Reverse DNS history
How this IP's reverse DNS (PTR) has changed over time, from our scans.
Reverse-DNS changes between Jun 1, 2026 and Oct 2, 2026 were not recorded; the current PTR is shown from its earliest retained observation.
- no PTR — since at least Oct 2, 2026 → present
- 109-183-205-154.customers.tmcz.cz — Jun 1, 2026 → Oct 2, 2026 2 brief no-PTR dropouts
Network Allocation for 109.183.205.154
- CIDR range
- 109.183.200.0/21
- IP range (int)
- 1,840,760,832 — 1,840,762,879
- Prefix length
- /21
- Organization
- T-Mobile Czech Republic a.s.
- ASN
- AS13036
- ASN name
- T-Mobile Czech Republic a.s.
- Location
- Prague, Prague, Czechia
- Coordinates
- 50.094800, 14.478500
- Accuracy radius
- 100 km
- Postal code
- 130 00
- Regional Internet Registry
- RIPE
- Allocated
- 2009-09-29
- Data source(s)
- maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
- Last updated
- 2026-10-02 08:46:44
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
Frequently Asked Questions
Who owns 109.183.205.154?
109.183.205.154 is allocated to T-Mobile Czech Republic a.s. (AS13036), registered in Prague, Czechia.
Where is 109.183.205.154 located?
The geolocation for 109.183.205.154 maps to Prague, Czechia based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.
What network is 109.183.205.154 on?
109.183.205.154 belongs to the 109.183.200.0/21 network block announced by AS13036. This range contains 2,048 addresses.
Does 109.183.205.154 have a reverse DNS record?
Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.
Neighbors
Other addresses in the same /24.
