sensors Mode-S transponder

501C15

ICAO 24-bit transponder address · allocated to Croatia

Currently assigned to 9A-IRM · AIRBUS A-320

Hex
501C15
Octal
24016025
Decimal
5,250,069
Country
HR
Tail
9A-IRM
Type
A320
No current signal · last broadcast 7h ago
Flights observed
111
Distinct callsigns
20
Country
HR
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 501C15.

Country allocation

The ICAO 24-bit address 501C15 falls within the block assigned to Croatia (HR) by ICAO Annex 10, Volume III. Every aircraft registered in Croatia receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 CFG6ZH CHQ → MUC Jun 2, 18:30 UTCJun 2, 20:50 UTC2h 20m
2026-06-02 CFG2PD AGP → DUS Jun 2, 13:25 UTCJun 2, 16:05 UTC2h 40m
2026-06-02 CFG3VD CHQ → FRA Jun 2, 08:15 UTCJun 2, 11:00 UTC2h 45m
2026-06-02 CFG6ZF MUC → CHQ Jun 2, 04:45 UTCJun 2, 07:00 UTC2h 15m
2026-06-01 CFG7XM FRA → HER Jun 1, 17:35 UTCJun 1, 20:00 UTC2h 25m
2026-06-01 CFG3MH FRA → CHQ Jun 1, 13:50 UTCJun 1, 16:30 UTC2h 40m
2026-06-01 CFG3PX PMI → STR Jun 1, 08:20 UTCJun 1, 11:05 UTC2h 45m
2026-06-01 CFG4FD HAM → FUE Jun 1, 04:30 UTCJun 1, 06:50 UTC2h 20m
2026-05-31 CFG3NP CHQ → MUC May 31, 18:15 UTCMay 31, 20:45 UTC2h 30m
2026-05-31 CFG3MF DUS → LCA May 31, 14:10 UTCMay 31, 17:10 UTC3h 0m
2026-05-31 CFG1XN CHQ → FRA May 31, 09:00 UTCMay 31, 11:55 UTC2h 55m
2026-05-30 CFG5PZ STR → HER May 30, 17:35 UTCMay 30, 20:00 UTC2h 25m
2026-05-30 CFG9HD FRA → CHQ May 30, 13:35 UTCMay 30, 16:15 UTC2h 40m
2026-05-30 CFG9LF HAM → SPC May 30, 08:10 UTCMay 30, 11:05 UTC2h 55m
2026-05-30 CFG5FE MUC → CHQ May 30, 04:05 UTCMay 30, 06:20 UTC2h 15m
2026-05-29 CFG8FP DUS → AGP May 29, 17:15 UTCMay 29, 19:45 UTC2h 30m
2026-05-29 CFG1XL FRA → CHQ May 29, 13:30 UTCMay 29, 16:00 UTC2h 31m
2026-05-29 CFG9KP LPA → HAM May 29, 08:05 UTCMay 29, 10:55 UTC2h 50m
2026-05-29 CFG4WH MUC → CHQ May 29, 04:30 UTCMay 29, 06:45 UTC2h 15m
2026-05-28 CFG6JY CHQ → MUC May 28, 17:25 UTCMay 28, 19:55 UTC2h 30m
2026-05-28 CFG9HX FRA → CHQ May 28, 13:45 UTCMay 28, 16:20 UTC2h 35m
2026-05-28 CFG2MU CHQ → FRA May 28, 08:35 UTCMay 28, 11:30 UTC2h 55m
2026-05-28 CFG6JC MUC → CHQ May 28, 04:50 UTCMay 28, 07:10 UTC2h 20m
2026-05-27 CFG7YT CHQ → MUC May 27, 18:30 UTCMay 27, 20:55 UTC2h 25m
2026-05-27 CFG9ZA BUD → FRA May 27, 14:25 UTCMay 27, 17:00 UTC2h 35m
2026-05-27 CFG9ZD CHQ → FRA May 27, 07:45 UTCMay 27, 10:25 UTC2h 40m
2026-05-27 CFG6XT MUC → CHQ May 27, 04:09 UTCMay 27, 06:20 UTC2h 10m
2026-05-26 CFG6ZH CHQ → MUC May 26, 17:35 UTCMay 26, 19:50 UTC2h 15m
2026-05-26 CFG2PD AGP → DUS May 26, 13:34 UTCMay 26, 16:15 UTC2h 40m
2026-05-26 CFG3VD CHQ → FRA May 26, 08:24 UTCMay 26, 11:09 UTC2h 45m
2026-05-26 CFG6ZF MUC → CHQ May 26, 04:24 UTCMay 26, 06:44 UTC2h 20m
2026-05-25 CFG7XM FRA → HER May 25, 17:15 UTCMay 25, 19:35 UTC2h 19m
2026-05-25 CFG3MH FRA → CHQ May 25, 13:30 UTCMay 25, 16:10 UTC2h 40m
2026-05-25 CFG3PX PMI → STR May 25, 08:30 UTCMay 25, 11:10 UTC2h 40m
2026-05-25 CFG4FD HAM → FUE May 25, 04:50 UTCMay 25, 07:15 UTC2h 25m
2026-05-19 CFG7KE TFS → MUC May 19, 10:50 UTCMay 19, 14:50 UTC4h 0m
2026-05-19 CFG7HD MUC → TFS May 19, 04:50 UTCMay 19, 08:50 UTC4h 0m
2026-05-18 CFG7XM FRA → HER May 18, 17:30 UTCMay 18, 19:50 UTC2h 19m
2026-05-18 CFG3MH FRA → CHQ May 18, 13:35 UTCMay 18, 16:25 UTC2h 50m
2026-05-18 CFG3PX PMI → STR May 18, 08:30 UTCMay 18, 11:15 UTC2h 45m
2026-05-18 CFG4FD HAM → FUE May 18, 04:30 UTCMay 18, 06:45 UTC2h 15m
2026-05-17 CFG3NP CHQ → MUC May 17, 16:35 UTCMay 17, 19:05 UTC2h 30m
2026-05-17 CFG3MF DUS → LCA May 17, 12:40 UTCMay 17, 15:25 UTC2h 45m
2026-05-17 CFG1XN CHQ → FRA May 17, 08:10 UTCMay 17, 11:10 UTC3h 0m
2026-05-17 CFG3ND MUC → CHQ May 17, 04:10 UTCMay 17, 06:15 UTC2h 5m
2026-05-16 CFG5PZ STR → HER May 16, 17:45 UTCMay 16, 20:10 UTC2h 25m
2026-05-16 CFG9HD FRA → CHQ May 16, 14:01 UTCMay 16, 16:20 UTC2h 20m
2026-05-16 CFG9LF HAM → SPC May 16, 08:11 UTCMay 16, 11:05 UTC2h 55m
2026-05-16 CFG5FE MUC → CHQ May 16, 04:10 UTCMay 16, 06:16 UTC2h 6m
2026-05-15 CFG8FP DUS → AGP May 15, 17:30 UTCMay 15, 20:10 UTC2h 40m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the 9A-IRM page for operator, model, and routing details .

Mode-S 501C15 frequently asked

What is Mode-S code 501C15?
501C15 is an ICAO 24-bit transponder address. Allocated to Croatia. Assigned to 9A-IRM.
Where is Mode-S 501C15 registered?
Mode-S code 501C15 is allocated to Croatia (HR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 501C15 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 501C15, octal 24016025, decimal 5,250,069.
What flights does 501C15 operate?
Mode-S 501C15 has broadcast 20 distinct callsigns, including TCV606, TCV601, CFG9KP, CFG8FP, CFG7XM.