Apparatus

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sensors Mode-S transponder

49C129

ICAO 24-bit transponder address · allocated to Czech Republic

Currently assigned to OK-UUR14 · BRM AERO NG-5/6 Bristell

Hex
49C129
Octal
22340451
Decimal
4,833,577
Country
CZ
Tail
OK-UUR14
Type
NG5
No current signal · last broadcast 4d ago
Flights observed
80
Distinct callsigns
1
Country
CZ
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 49C129.

Country allocation

The ICAO 24-bit address 49C129 falls within the block assigned to Czech Republic (CZ) by ICAO Annex 10, Volume III. Every aircraft registered in Czech Republic 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
OKUUR14 - 80 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 OKUUR14 - Jul 26, 10:10 UTCJul 26, 10:50 UTC40m
2026-07-26 OKUUR14 - Jul 26, 06:35 UTCJul 26, 08:35 UTC2h 0m
2026-07-25 OKUUR14 - Jul 25, 16:25 UTCJul 25, 17:10 UTC45m
2026-07-25 OKUUR14 - Jul 25, 06:20 UTCJul 25, 06:40 UTC20m
2026-07-24 OKUUR14 - Jul 24, 16:40 UTCJul 24, 17:20 UTC40m
2026-07-22 OKUUR14 - Jul 22, 15:25 UTCJul 22, 15:45 UTC20m
2026-07-20 OKUUR14 - Jul 20, 16:05 UTCJul 20, 16:50 UTC45m
2026-07-17 OKUUR14 - Jul 17, 08:15 UTCJul 17, 08:54 UTC40m
2026-07-17 OKUUR14 - Jul 17, 07:25 UTCJul 17, 07:35 UTC10m
2026-07-17 OKUUR14 - Jul 17, 05:10 UTCJul 17, 06:25 UTC1h 15m
2026-07-16 OKUUR14 - Jul 16, 15:45 UTCJul 16, 16:19 UTC35m
2026-07-16 OKUUR14 - Jul 16, 11:45 UTCJul 16, 13:00 UTC1h 15m
2026-07-16 OKUUR14 - Jul 16, 08:50 UTCJul 16, 09:25 UTC35m
2026-07-13 OKUUR14 - Jul 13, 11:35 UTCJul 13, 12:20 UTC45m
2026-07-13 OKUUR14 - Jul 13, 08:05 UTCJul 13, 08:25 UTC20m
2026-07-13 OKUUR14 - Jul 13, 06:55 UTCJul 13, 07:35 UTC40m
2026-07-13 OKUUR14 - Jul 13, 06:20 UTCJul 13, 06:35 UTC15m
2026-07-12 OKUUR14 - Jul 12, 14:10 UTCJul 12, 15:25 UTC1h 15m
2026-07-11 OKUUR14 - Jul 11, 15:10 UTCJul 11, 17:45 UTC2h 35m
2026-07-11 OKUUR14 - Jul 11, 08:45 UTCJul 11, 10:35 UTC1h 50m
2026-07-11 OKUUR14 - Jul 11, 05:25 UTCJul 11, 06:45 UTC1h 20m
2026-07-10 OKUUR14 - Jul 10, 15:35 UTCJul 10, 17:20 UTC1h 45m
2026-07-10 OKUUR14 - Jul 10, 11:10 UTCJul 10, 11:30 UTC20m
2026-07-10 OKUUR14 - Jul 10, 05:40 UTCJul 10, 07:05 UTC1h 25m
2026-07-09 OKUUR14 - Jul 9, 10:20 UTCJul 9, 11:40 UTC1h 20m
2026-07-04 OKUUR14 - Jul 4, 16:50 UTCJul 4, 18:00 UTC1h 10m
2026-07-02 OKUUR14 - Jul 2, 13:50 UTCJul 2, 14:05 UTC15m
2026-06-26 OKUUR14 - Jun 26, 04:39 UTCJun 26, 05:05 UTC25m
2026-06-25 OKUUR14 - Jun 25, 09:25 UTCJun 25, 09:55 UTC30m
2026-06-25 OKUUR14 - Jun 25, 07:49 UTCJun 25, 08:45 UTC55m
2026-06-25 OKUUR14 - Jun 25, 06:25 UTCJun 25, 06:40 UTC15m
2026-06-24 OKUUR14 - Jun 24, 16:14 UTCJun 24, 16:34 UTC20m
2026-06-24 OKUUR14 - Jun 24, 07:44 UTCJun 24, 09:34 UTC1h 50m
2026-06-24 OKUUR14 - Jun 24, 05:49 UTCJun 24, 05:59 UTC10m
2026-06-22 OKUUR14 - Jun 22, 07:04 UTCJun 22, 07:34 UTC30m
2026-06-21 OKUUR14 - Jun 21, 11:34 UTCJun 21, 12:44 UTC1h 10m
2026-06-19 OKUUR14 - Jun 19, 18:09 UTCJun 19, 18:25 UTC15m
2026-06-18 OKUUR14 - Jun 18, 17:30 UTCJun 18, 17:40 UTC10m
2026-06-18 OKUUR14 - Jun 18, 11:45 UTCJun 18, 12:05 UTC20m
2026-06-16 OKUUR14 - Jun 16, 11:35 UTCJun 16, 15:24 UTC3h 50m
2026-06-12 OKUUR14 - Jun 12, 08:25 UTCJun 12, 09:15 UTC50m
2026-05-29 OKUUR14 - May 29, 15:10 UTCMay 29, 15:35 UTC25m
2026-05-29 OKUUR14 - May 29, 12:40 UTCMay 29, 13:00 UTC20m
2026-05-29 OKUUR14 - May 29, 08:35 UTCMay 29, 09:50 UTC1h 15m
2026-05-26 OKUUR14 - May 26, 18:10 UTCMay 26, 18:24 UTC15m
2026-05-26 OKUUR14 - May 26, 15:49 UTCMay 26, 16:10 UTC20m
2026-05-26 OKUUR14 - May 26, 06:20 UTCMay 26, 08:15 UTC1h 55m
2026-05-25 OKUUR14 - May 25, 15:30 UTCMay 25, 16:10 UTC40m
2026-05-25 OKUUR14 - May 25, 14:30 UTCMay 25, 14:50 UTC20m
2026-05-24 OKUUR14 - May 24, 14:10 UTCMay 24, 14:25 UTC15m

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 OK-UUR14 page for operator, model, and routing details .

Mode-S 49C129 frequently asked

What is Mode-S code 49C129?
49C129 is an ICAO 24-bit transponder address. Allocated to Czech Republic. Assigned to OK-UUR14.
Where is Mode-S 49C129 registered?
Mode-S code 49C129 is allocated to Czech Republic (CZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 49C129 broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 49C129, octal 22340451, decimal 4,833,577.
What flights does 49C129 operate?
Mode-S 49C129 has broadcast 1 distinct callsign, including OKUUR14.