ASTARA IMSI Catcher
Directional Finder
This application is designed to locate mobile devices based on their IMSI (International Mobile Subscriber Identity). It captures cellular network signals to determine the physical location and operator information of target mobile devices.
This application can only be run on a mobile device
Equipment
Finder
IMSI510101234567890 OperatorTelkomsel RemarkTargetB BandN40 Freq2300 MHz Capture Time2025-01-08 13:58:03
1
0
RSRP
0 dBm
Signal Distribution
No capture data yet
Capture Statistics
0
Total Captured
—
Peak Signal
—
Avg Signal
—
Primary Band
Band Distribution
No band activated yet
Data Analysis
IMSIMCCBANDEARFCN
EARFCNTimesAccess Time
Setting
Account
Change Password
Logout
Network
Server Address192.168.1.1
Port8080
About
Versionv2.1.0
Check Update
GSM Info
Parameter Settings
Equipment NameB904-90
Multiple EARFCN Launch
MCCCMCC
m-EAREmpty
EAR-1Empty
EAR-2Empty
EAR-3Empty
EARFCN
m-EAR
band
B3
earfcn
1350
EAR-1
band
B8
earfcn
3450
EAR-2
band
N40
earfcn
464000
EAR-3
band
N3
earfcn
363000
Notifications
Select
Signal Info
IMSI—
Operator—
RSRP— dBm
Signal Quality—
−140 dBm−50 dBm+40 dBm
About RSRP
RSRP (Reference Signal Received Power) adalah metrik pengukuran daya rata-rata sinyal referensi LTE/4G/5G yang diterima oleh antena perangkat (UE), diukur dalam satuan dBm.

RSRP berfungsi sebagai indikator presisi untuk menilai signal strength, network quality, and handover between base station cells.
⚠ Cannot Be Activated
Operator Mismatch
Equipment operator does not match the selected target.
Equipment Info
Device ID
—
Operator
—
MCC
—
MNC
—
Generation
—
Channel
—
EARFCN / NR-ARFCN
—
Delete Target?
This action cannot be undone.
Notes
Add Equipment
Add Target
15-digit International Mobile Subscriber Identity
Target signal threshold to trigger a strong signal notification.