sensors Mode-S transponder

49D66B

ICAO 24-bit transponder address · allocated to Czech Republic

Currently assigned to OK-OMG · PILATUS PC-12

Hex
49D66B
Octal
22353153
Decimal
4,839,019
Country
CZ
Tail
OK-OMG
Type
PC12
No current signal · last broadcast 1d ago
Flights observed
99
Distinct callsigns
3
Country
CZ
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 49D66B.

Country allocation

The ICAO 24-bit address 49D66B 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 3 distinct

Callsign Airline Flights Last seen
AAO51 - 92 2026-07-16
AAO051 - 6 2026-07-10
OKOMG - 1 2026-06-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 AAO51 - Jul 16, 13:20 UTCJul 16, 14:50 UTC1h 30m
2026-07-13 AAO51 - Jul 13, 11:30 UTCJul 13, 12:45 UTC1h 15m
2026-07-12 AAO51 - Jul 12, 17:50 UTCJul 12, 20:05 UTC2h 15m
2026-07-12 AAO51 - Jul 12, 12:01 UTCJul 12, 13:40 UTC1h 40m
2026-07-12 AAO51 - Jul 12, 09:10 UTCJul 12, 10:55 UTC1h 45m
2026-07-11 AAO51 - Jul 11, 16:30 UTCJul 11, 17:50 UTC1h 20m
2026-07-11 AAO51 - Jul 11, 12:40 UTCJul 11, 13:20 UTC40m
2026-07-11 AAO51 - Jul 11, 07:55 UTCJul 11, 09:35 UTC1h 40m
2026-07-10 AAO51 - Jul 10, 14:45 UTCJul 10, 15:30 UTC45m
2026-07-10 AAO51 - Jul 10, 13:05 UTCJul 10, 13:50 UTC45m
2026-07-10 AAO051 - Jul 10, 09:15 UTCJul 10, 11:30 UTC2h 15m
2026-07-08 AAO051 - Jul 8, 12:05 UTCJul 8, 13:35 UTC1h 30m
2026-07-08 AAO51 - Jul 8, 08:55 UTCJul 8, 09:55 UTC1h 0m
2026-07-06 AAO51 - Jul 6, 16:20 UTCJul 6, 17:55 UTC1h 35m
2026-07-06 AAO51 - Jul 6, 14:45 UTCJul 6, 15:40 UTC55m
2026-07-06 AAO51 - Jul 6, 12:00 UTCJul 6, 12:25 UTC25m
2026-07-06 AAO51 - Jul 6, 10:00 UTCJul 6, 11:05 UTC1h 5m
2026-07-05 AAO51 - Jul 5, 14:30 UTCJul 5, 16:20 UTC1h 50m
2026-07-05 AAO51 BCN → NCE Jul 5, 11:15 UTCJul 5, 12:35 UTC1h 20m
2026-07-05 AAO51 IBZ → BCN Jul 5, 05:55 UTCJul 5, 06:45 UTC50m
2026-07-04 AAO51 - Jul 4, 10:50 UTCJul 4, 12:30 UTC1h 40m
2026-07-03 AAO51 - Jul 3, 11:10 UTCJul 3, 12:05 UTC55m
2026-07-03 AAO51 - Jul 3, 07:55 UTCJul 3, 08:55 UTC1h 0m
2026-07-02 AAO51 - Jul 2, 14:40 UTCJul 2, 15:45 UTC1h 5m
2026-07-02 AAO51 - Jul 2, 12:05 UTCJul 2, 13:10 UTC1h 5m
2026-07-01 AAO51 - Jul 1, 16:05 UTCJul 1, 17:40 UTC1h 35m
2026-07-01 AAO51 - Jul 1, 10:15 UTCJul 1, 11:25 UTC1h 10m
2026-07-01 AAO051 - Jul 1, 07:25 UTCJul 1, 09:35 UTC2h 10m
2026-06-29 AAO051 IBZ → MAD Jun 29, 09:05 UTCJun 29, 10:15 UTC1h 10m
2026-06-28 AAO51 - Jun 28, 14:14 UTCJun 28, 16:05 UTC1h 50m
2026-06-28 AAO51 - Jun 28, 08:44 UTCJun 28, 11:00 UTC2h 15m
2026-06-28 AAO51 - Jun 28, 07:09 UTCJun 28, 07:40 UTC30m
2026-06-27 AAO51 PRG → BQH Jun 27, 16:20 UTCJun 27, 18:49 UTC2h 30m
2026-06-21 AAO51 LBG → PRG Jun 21, 18:50 UTCJun 21, 20:45 UTC1h 55m
2026-06-21 AAO51 - Jun 21, 09:35 UTCJun 21, 11:20 UTC1h 45m
2026-06-20 AAO51 - Jun 20, 11:25 UTCJun 20, 13:14 UTC1h 50m
2026-06-20 AAO51 - Jun 20, 07:59 UTCJun 20, 09:49 UTC1h 50m
2026-06-19 AAO51 - Jun 19, 11:09 UTCJun 19, 12:19 UTC1h 10m
2026-06-19 AAO51 - Jun 19, 08:24 UTCJun 19, 09:34 UTC1h 10m
2026-06-18 AAO51 - Jun 18, 15:50 UTCJun 18, 18:05 UTC2h 15m
2026-06-18 AAO51 LTT → CQF Jun 18, 10:50 UTCJun 18, 12:55 UTC2h 5m
2026-06-17 AAO51 LBG → LTT Jun 17, 14:55 UTCJun 17, 16:40 UTC1h 45m
2026-06-14 AAO051 MAD → LBG Jun 14, 15:45 UTCJun 14, 18:15 UTC2h 30m
2026-06-14 AAO051 - Jun 14, 11:30 UTCJun 14, 13:40 UTC2h 10m
2026-06-14 AAO51 LBG → LTT Jun 14, 07:50 UTCJun 14, 09:25 UTC1h 35m
2026-06-12 AAO51 - Jun 12, 08:10 UTCJun 12, 10:05 UTC1h 55m
2026-06-12 AAO51 LYS → LTT Jun 12, 06:10 UTCJun 12, 06:55 UTC45m
2026-06-11 AAO51 - Jun 11, 20:25 UTCJun 11, 22:35 UTC2h 10m
2026-06-11 AAO51 PRG → BER Jun 11, 19:10 UTCJun 11, 19:55 UTC45m
2026-06-11 OKOMG - Jun 11, 16:00 UTCJun 11, 16:10 UTC10m

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

Mode-S 49D66B frequently asked

What is Mode-S code 49D66B?
49D66B is an ICAO 24-bit transponder address. Allocated to Czech Republic. Assigned to OK-OMG.
Where is Mode-S 49D66B registered?
Mode-S code 49D66B 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 49D66B broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 49D66B, octal 22353153, decimal 4,839,019.
What flights does 49D66B operate?
Mode-S 49D66B has broadcast 3 distinct callsigns, including AAO51, AAO051, OKOMG.