sensors Mode-S transponder

49C16C

ICAO 24-bit transponder address · allocated to Czech Republic

Currently assigned to OM-M370 · BRM AERO NG-5/6 Bristell

Hex
49C16C
Octal
22340554
Decimal
4,833,644
Country
CZ
Tail
OM-M370
Type
NG5
No current signal · last broadcast 16h ago
Flights observed
38
Distinct callsigns
4
Country
CZ
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 49C16C.

Country allocation

The ICAO 24-bit address 49C16C 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 4 distinct

Callsign Airline Flights Last seen
OKVAU99 - 17 2026-06-28
YR5616 - 12 2026-07-24
LYVJS - 8 2026-07-09
YR5564 - 1 2026-07-17

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-07-24 YR5616 - Jul 24, 06:30 UTCJul 24, 08:00 UTC1h 30m
2026-07-17 YR5564 - Jul 17, 10:40 UTCJul 17, 10:55 UTC15m
2026-07-09 LYVJS - Jul 9, 16:10 UTCJul 9, 17:40 UTC1h 30m
2026-07-09 YR5616 - Jul 9, 06:10 UTCJul 9, 07:35 UTC1h 25m
2026-06-28 LYVJS - Jun 28, 16:19 UTCJun 28, 18:10 UTC1h 50m
2026-06-28 OKVAU99 - Jun 28, 08:05 UTCJun 28, 11:04 UTC3h 0m
2026-06-27 YR5616 - Jun 27, 10:19 UTCJun 27, 11:50 UTC1h 30m
2026-06-27 LYVJS - Jun 27, 06:44 UTCJun 27, 09:19 UTC2h 35m
2026-06-26 OKVAU99 - Jun 26, 18:15 UTCJun 26, 18:49 UTC35m
2026-06-23 LYVJS - Jun 23, 05:59 UTCJun 23, 06:34 UTC35m
2026-06-20 YR5616 - Jun 20, 15:29 UTCJun 20, 16:55 UTC1h 25m
2026-06-19 YR5616 - Jun 19, 08:59 UTCJun 19, 09:49 UTC50m
2026-06-19 YR5616 - Jun 19, 08:20 UTCJun 19, 08:29 UTC10m
2026-06-16 OKVAU99 - Jun 16, 15:15 UTCJun 16, 15:55 UTC40m
2026-06-16 OKVAU99 - Jun 16, 13:40 UTCJun 16, 14:39 UTC1h 0m
2026-06-14 YR5616 - Jun 14, 08:40 UTCJun 14, 10:10 UTC1h 30m
2026-06-11 YR5616 - Jun 11, 16:15 UTCJun 11, 16:55 UTC40m
2026-06-11 YR5616 - Jun 11, 15:25 UTCJun 11, 15:35 UTC10m
2026-06-01 LYVJS - Jun 1, 16:55 UTCJun 1, 18:15 UTC1h 20m
2026-06-01 LYVJS - Jun 1, 05:45 UTCJun 1, 06:35 UTC50m
2026-05-31 OKVAU99 - May 31, 12:10 UTCMay 31, 12:25 UTC15m
2026-05-31 OKVAU99 - May 31, 09:35 UTCMay 31, 09:55 UTC20m
2026-05-29 OKVAU99 - May 29, 05:20 UTCMay 29, 05:50 UTC30m
2026-05-28 YR5616 - May 28, 11:25 UTCMay 28, 12:15 UTC50m
2026-05-28 OKVAU99 - May 28, 05:30 UTCMay 28, 06:00 UTC30m
2026-05-27 LYVJS - May 27, 05:35 UTCMay 27, 07:15 UTC1h 41m
2026-05-26 OKVAU99 - May 26, 16:35 UTCMay 26, 17:35 UTC1h 0m
2026-05-18 OKVAU99 - May 18, 16:45 UTCMay 18, 17:30 UTC45m
2026-05-08 LYVJS - May 8, 15:05 UTCMay 8, 16:20 UTC1h 15m
2026-05-08 OKVAU99 - May 8, 11:55 UTCMay 8, 13:05 UTC1h 10m
2026-05-08 OKVAU99 - May 8, 10:04 UTCMay 8, 10:35 UTC30m
2026-05-06 OKVAU99 - May 6, 12:25 UTCMay 6, 12:45 UTC20m
2026-04-25 YR5616 - Apr 25, 12:00 UTCApr 25, 12:25 UTC25m
2026-04-25 YR5616 - Apr 25, 08:55 UTCApr 25, 10:50 UTC1h 55m
2026-04-14 OKVAU99 - Apr 14, 09:10 UTCApr 14, 09:20 UTC10m
2026-04-14 OKVAU99 - Apr 14, 08:20 UTCApr 14, 09:05 UTC45m
2026-04-13 OKVAU99 - Apr 13, 12:25 UTCApr 13, 12:40 UTC15m
2026-04-13 OKVAU99 UHE → UHE Apr 13, 10:45 UTCApr 13, 11:25 UTC40m

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 OM-M370 page for operator, model, and routing details .

Mode-S 49C16C frequently asked

What is Mode-S code 49C16C?
49C16C is an ICAO 24-bit transponder address. Allocated to Czech Republic. Assigned to OM-M370.
Where is Mode-S 49C16C registered?
Mode-S code 49C16C 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 49C16C broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 49C16C, octal 22340554, decimal 4,833,644.
What flights does 49C16C operate?
Mode-S 49C16C has broadcast 4 distinct callsigns, including OKVAU99, YR5616, LYVJS, YR5564.