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sensors Mode-S transponder

501C43

ICAO 24-bit transponder address · allocated to Croatia

Currently assigned to 9A-CAM · AIRBUS A220-300

Hex
501C43
Octal
24016103
Decimal
5,250,115
Country
HR
Tail
9A-CAM
Type
BCS3
Broadcasting now · callsign CTN410 · 24,075 ft
Flights observed
554
Distinct callsigns
20
Country
HR
Last broadcast
Jul 26, 20:55 UTC

Current position

501C43 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 501C43 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

Callsign Airline Flights Last seen
CTN25F Croatia Airlines 18 2026-07-20
CTN71F - 17 2026-07-20
CTN413 - 16 2026-07-11
CTN412 - 15 2026-06-29
CTN4AS - 14 2026-07-17
CTN416 - 13 2026-07-11
CTN19H - 13 2026-06-29
CTN5NL Croatia Airlines 12 2026-07-17
CTN481 Croatia Airlines 11 2026-07-25
CTN480 Croatia Airlines 11 2026-07-25
CTN656 Croatia Airlines 10 2026-07-25
CTN415 Croatia Airlines 10 2026-07-25
CTN414 - 10 2026-07-25
CTN72E Croatia Airlines 9 2026-07-23
CTN664 Croatia Airlines 9 2026-07-23
CTN476 - 9 2026-06-30
CTN375 Croatia Airlines 9 2026-07-23
CTN29F - 9 2026-06-30
CTN52R - 8 2026-07-20
CTN475 Croatia Airlines 8 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CTN4457 BRU → ZAG Jul 26, 19:40 UTCJul 26, 20:55 UTC1h 15m
2026-07-26 CTN4456 ZAG → BRU Jul 26, 16:40 UTCJul 26, 18:20 UTC1h 40m
2026-07-26 CTN369 SKP → ZAG Jul 26, 12:25 UTCJul 26, 15:15 UTC2h 50m
2026-07-26 CTN9HR FRA → ZAG Jul 26, 08:45 UTCJul 26, 09:45 UTC1h 0m
2026-07-26 CTN410 ZAG → FRA Jul 26, 05:45 UTCJul 26, 07:05 UTC1h 21m
2026-07-25 CTN656 ZAG → SPU Jul 25, 21:10 UTCJul 25, 21:25 UTC15m
2026-07-25 CTN415 FRA → ZAG Jul 25, 19:10 UTCJul 25, 20:10 UTC1h 0m
2026-07-25 CTN414 - Jul 25, 16:10 UTCJul 25, 17:15 UTC1h 5m
2026-07-25 CTN481 CPH → ZAG Jul 25, 10:20 UTCJul 25, 11:50 UTC1h 30m
2026-07-25 CTN480 ZAG → CPH Jul 25, 07:30 UTCJul 25, 09:15 UTC1h 45m
2026-07-25 CTN6B DBV → ZAG Jul 25, 04:30 UTCJul 25, 05:05 UTC35m
2026-07-24 CTN756C ZRH → DBV Jul 24, 14:30 UTCJul 24, 15:45 UTC1h 15m
2026-07-24 CTN756R DBV → ZRH Jul 24, 11:55 UTCJul 24, 13:30 UTC1h 35m
2026-07-24 CTN27H FRA → DBV Jul 24, 08:55 UTCJul 24, 10:45 UTC1h 50m
2026-07-24 CTN27D DBV → FRA Jul 24, 05:55 UTCJul 24, 07:40 UTC1h 45m
2026-07-23 CTN664 ZAG → DBV Jul 23, 21:05 UTCJul 23, 21:40 UTC35m
2026-07-23 CTN375 BCN → ZAG Jul 23, 17:10 UTCJul 23, 18:55 UTC1h 45m
2026-07-23 CTN72E ZAG → BCN Jul 23, 13:50 UTCJul 23, 15:55 UTC2h 5m
2026-07-23 CTN5J SPU → ZAG Jul 23, 12:35 UTCJul 23, 12:50 UTC15m
2026-07-23 CTN4489 OSL → SPU Jul 23, 09:00 UTCJul 23, 11:05 UTC2h 5m
2026-07-23 CTN848R SPU → OSL Jul 23, 05:20 UTCJul 23, 07:50 UTC2h 30m
2026-07-22 CTN475V LYS → SPU Jul 22, 17:40 UTCJul 22, 18:45 UTC1h 5m
2026-07-22 CTN474V SPU → LYS Jul 22, 15:15 UTCJul 22, 16:30 UTC1h 15m
2026-07-22 CTN75C ZRH → SPU Jul 22, 13:15 UTCJul 22, 14:05 UTC50m
2026-07-22 CTN76H SPU → ZRH Jul 22, 11:10 UTCJul 22, 12:10 UTC1h 0m
2026-07-22 CTN1W - Jul 22, 04:45 UTCJul 22, 04:55 UTC10m
2026-07-21 CTN4451 AMS → ZAG Jul 21, 17:40 UTCJul 21, 19:00 UTC1h 20m
2026-07-21 CTN4450 ZAG → AMS Jul 21, 14:30 UTCJul 21, 16:15 UTC1h 45m
2026-07-21 CTN461 - Jul 21, 12:35 UTCJul 21, 13:25 UTC50m
2026-07-21 CTN460 ZAG → ZRH Jul 21, 09:50 UTCJul 21, 11:05 UTC1h 15m
2026-07-21 CTN56E - Jul 21, 07:30 UTCJul 21, 08:50 UTC1h 20m
2026-07-21 CTN456 ZAG → BRU Jul 21, 05:05 UTCJul 21, 06:40 UTC1h 35m
2026-07-20 CTN6D DBV → ZAG Jul 20, 20:45 UTCJul 20, 21:20 UTC35m
2026-07-20 CTN660 - Jul 20, 18:40 UTCJul 20, 19:50 UTC1h 10m
2026-07-20 CTN71F - Jul 20, 16:50 UTCJul 20, 18:05 UTC1h 15m
2026-07-20 CTN52R - Jul 20, 13:45 UTCJul 20, 15:40 UTC1h 55m
2026-07-20 CTN475 CDG → SPU Jul 20, 10:30 UTCJul 20, 11:55 UTC1h 25m
2026-07-20 CTN25F ZAG → CDG Jul 20, 07:15 UTCJul 20, 09:05 UTC1h 50m
2026-07-19 CTN724D - Jul 19, 19:20 UTCJul 19, 20:35 UTC1h 15m
2026-07-19 CTN624D - Jul 19, 16:30 UTCJul 19, 18:10 UTC1h 40m
2026-07-19 CTN369 SKP → ZAG Jul 19, 14:30 UTCJul 19, 15:15 UTC45m
2026-07-19 CTN368 ZAG → SKP Jul 19, 12:25 UTCJul 19, 13:05 UTC40m
2026-07-19 CTN481 - Jul 19, 09:45 UTCJul 19, 11:20 UTC1h 35m
2026-07-19 CTN480 ZAG → CPH Jul 19, 06:45 UTCJul 19, 08:25 UTC1h 40m
2026-07-18 CTN415 FRA → ZAG Jul 18, 19:50 UTCJul 18, 20:50 UTC1h 0m
2026-07-18 CTN414 - Jul 18, 16:15 UTCJul 18, 18:10 UTC1h 55m
2026-07-18 CTN373 - Jul 18, 11:40 UTCJul 18, 13:45 UTC2h 5m
2026-07-18 CTN37S - Jul 18, 06:10 UTCJul 18, 08:40 UTC2h 30m
2026-07-17 CTN4457 - Jul 17, 19:15 UTCJul 17, 20:40 UTC1h 25m
2026-07-17 CTN4456 - Jul 17, 16:29 UTCJul 17, 18:15 UTC1h 45m

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

Mode-S 501C43 frequently asked

What is Mode-S code 501C43?
501C43 is an ICAO 24-bit transponder address. Allocated to Croatia. Assigned to 9A-CAM.
Where is Mode-S 501C43 registered?
Mode-S code 501C43 is allocated to Croatia (HR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 501C43 broadcasting right now?
Yes. Mode-S 501C43 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 501C43, octal 24016103, decimal 5,250,115.
What flights does 501C43 operate?
Mode-S 501C43 has broadcast 20 distinct callsigns, including CTN25F, CTN71F, CTN413, CTN412, CTN4AS.