Apparatus

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sensors Mode-S transponder

501C48

ICAO 24-bit transponder address · allocated to Croatia

Currently assigned to 9A-HRC · BELL 412

Hex
501C48
Octal
24016110
Decimal
5,250,120
Country
HR
Tail
9A-HRC
Type
B412
No current signal · last broadcast 5d ago
Flights observed
32
Distinct callsigns
1
Country
HR
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 501C48.

Country allocation

The ICAO 24-bit address 501C48 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 1 distinct

Callsign Airline Flights Last seen
POLICE5 - 32 2026-07-09

Recent flights last 32

DateFlightRouteTakeoffLandingDuration
2026-07-09 POLICE5 - Jul 9, 07:20 UTCJul 9, 07:30 UTC10m
2026-07-09 POLICE5 - Jul 9, 06:20 UTCJul 9, 06:30 UTC10m
2026-07-07 POLICE5 - Jul 7, 16:10 UTCJul 7, 16:15 UTC5m
2026-07-07 POLICE5 - Jul 7, 11:05 UTCJul 7, 11:15 UTC10m
2026-07-07 POLICE5 - Jul 7, 09:45 UTCJul 7, 09:55 UTC10m
2026-07-04 POLICE5 - Jul 4, 13:00 UTCJul 4, 13:05 UTC5m
2026-07-04 POLICE5 - Jul 4, 09:20 UTCJul 4, 09:35 UTC15m
2026-07-03 POLICE5 - Jul 3, 13:35 UTCJul 3, 13:45 UTC10m
2026-07-01 POLICE5 - Jul 1, 08:15 UTCJul 1, 08:20 UTC5m
2026-06-30 POLICE5 - Jun 30, 08:30 UTCJun 30, 08:40 UTC10m
2026-06-30 POLICE5 - Jun 30, 06:10 UTCJun 30, 06:25 UTC15m
2026-06-28 POLICE5 - Jun 28, 08:55 UTCJun 28, 09:15 UTC20m
2026-06-28 POLICE5 - Jun 28, 07:44 UTCJun 28, 07:54 UTC10m
2026-06-27 POLICE5 - Jun 27, 11:14 UTCJun 27, 11:25 UTC10m
2026-06-26 POLICE5 - Jun 26, 09:39 UTCJun 26, 09:50 UTC10m
2026-06-24 POLICE5 - Jun 24, 08:55 UTCJun 24, 09:00 UTC5m
2026-06-24 POLICE5 - Jun 24, 07:50 UTCJun 24, 07:59 UTC10m
2026-06-21 POLICE5 - Jun 21, 17:10 UTCJun 21, 17:15 UTC5m
2026-06-20 POLICE5 - Jun 20, 09:59 UTCJun 20, 10:09 UTC10m
2026-06-20 POLICE5 - Jun 20, 08:25 UTCJun 20, 08:34 UTC10m
2026-06-19 POLICE5 - Jun 19, 17:04 UTCJun 19, 17:14 UTC10m
2026-06-18 POLICE5 - Jun 18, 12:50 UTCJun 18, 13:00 UTC10m
2026-06-17 POLICE5 - Jun 17, 13:45 UTCJun 17, 14:00 UTC15m
2026-06-17 POLICE5 - Jun 17, 12:40 UTCJun 17, 12:50 UTC10m
2026-06-16 POLICE5 - Jun 16, 10:15 UTCJun 16, 10:25 UTC10m
2026-06-14 POLICE5 - Jun 14, 09:45 UTCJun 14, 09:50 UTC5m
2026-06-12 POLICE5 - Jun 12, 16:55 UTCJun 12, 17:00 UTC5m
2026-06-12 POLICE5 - Jun 12, 12:35 UTCJun 12, 12:45 UTC10m
2026-06-11 POLICE5 - Jun 11, 17:15 UTCJun 11, 17:20 UTC5m
2026-06-11 POLICE5 - Jun 11, 13:05 UTCJun 11, 13:30 UTC25m
2026-05-25 POLICE5 - May 25, 12:15 UTCMay 25, 13:20 UTC1h 5m
2026-04-23 POLICE5 - Apr 23, 18:05 UTCApr 23, 18:30 UTC25m

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-HRC page for operator, model, and routing details .

Mode-S 501C48 frequently asked

What is Mode-S code 501C48?
501C48 is an ICAO 24-bit transponder address. Allocated to Croatia. Assigned to 9A-HRC.
Where is Mode-S 501C48 registered?
Mode-S code 501C48 is allocated to Croatia (HR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 501C48 broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 501C48, octal 24016110, decimal 5,250,120.
What flights does 501C48 operate?
Mode-S 501C48 has broadcast 1 distinct callsign, including POLICE5.