Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

452149

ICAO 24-bit transponder address · allocated to Bulgaria

Currently assigned to LZ-CJA · BOEING 747-400

Hex
452149
Octal
21220511
Decimal
4,530,505
Country
BG
Tail
LZ-CJA
Type
B744
No current signal · last broadcast 27d ago
Flights observed
99
Distinct callsigns
20
Country
BG
Last broadcast
27d ago

Last known position

Most recent position reported by Mode-S 452149.

Country allocation

The ICAO 24-bit address 452149 falls within the block assigned to Bulgaria (BG) by ICAO Annex 10, Volume III. Every aircraft registered in Bulgaria 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
UAE9841 Emirates 11 2026-04-30
UAE9840 Emirates 8 2026-04-29
UAE9780 Emirates 8 2026-04-20
UAE9781 Emirates 7 2026-04-20
UAE9839 Emirates 6 2026-04-26
UAE9837 Emirates 6 2026-04-23
UAE9791 Emirates 6 2026-05-01
UAE9847 Emirates 5 2026-04-28
UAE9846 Emirates 5 2026-04-28
UAE9844 Emirates 5 2026-05-02
UAE9845 Emirates 4 2026-05-03
UAE9838 Emirates 4 2026-04-26
UAE9836 Emirates 4 2026-04-23
UAE9790 Emirates 4 2026-04-30
UAE9853 Emirates 3 2026-04-24
UAE9850 Emirates 3 2026-04-27
UAE9863 Emirates 2 2026-04-21
UAE9862 Emirates 2 2026-04-21
UAE9852 Emirates 2 2026-04-24
UAE9851 Emirates 2 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-03 UAE9845 HKG → HKG May 3, 02:25 UTCMay 3, 07:10 UTC4h 44m
2026-05-02 UAE9845 HKG → HKG May 2, 23:30 UTCMay 2, 23:45 UTC15m
2026-05-02 UAE9844 DWC → HKG May 2, 12:05 UTCMay 2, 12:30 UTC25m
2026-05-02 UAE9844 DWC → HKG May 2, 05:50 UTCMay 2, 10:20 UTC4h 30m
2026-05-01 UAE9791 HKG → DWC May 1, 05:45 UTCMay 1, 11:10 UTC5h 25m
2026-05-01 UAE9791 HKG → DWC May 1, 03:35 UTCMay 1, 03:50 UTC15m
2026-04-30 UAE9790 DWC → DWC Apr 30, 16:55 UTCApr 30, 23:55 UTC7h 0m
2026-04-30 UAE9841 HKG → DWC Apr 30, 09:25 UTCApr 30, 09:50 UTC25m
2026-04-30 UAE9841 HKG → DWC Apr 30, 04:20 UTCApr 30, 06:10 UTC1h 50m
2026-04-30 UAE9841 HKG → DWC Apr 30, 02:15 UTCApr 30, 02:25 UTC10m
2026-04-29 UAE9840 DWC → HKG Apr 29, 22:40 UTCApr 29, 23:00 UTC20m
2026-04-29 UAE9840 DWC → HKG Apr 29, 16:15 UTCApr 29, 20:45 UTC4h 30m
2026-04-29 UAE9747 DWC → LLW Apr 29, 01:59 UTCApr 29, 08:10 UTC6h 10m
2026-04-28 UAE9847 JFK → DXB Apr 28, 18:00 UTCApr 28, 18:20 UTC20m
2026-04-28 UAE9847 JFK → DXB Apr 28, 13:45 UTCApr 28, 14:50 UTC1h 5m
2026-04-28 UAE9847 JFK → DXB Apr 28, 10:50 UTCApr 28, 11:00 UTC10m
2026-04-28 UAE9846 HKG → TOL Apr 28, 06:25 UTCApr 28, 06:50 UTC25m
2026-04-28 UAE9846 HKG → TOL Apr 28, 00:05 UTCApr 28, 04:20 UTC4h 15m
2026-04-27 UAE9851 HKG → DWC Apr 27, 10:10 UTCApr 27, 15:45 UTC5h 35m
2026-04-27 UAE9851 HKG → DWC Apr 27, 08:05 UTCApr 27, 08:20 UTC15m
2026-04-27 UAE9850 DXB → TPE Apr 27, 03:55 UTCApr 27, 04:20 UTC25m
2026-04-27 UAE9850 DXB → TPE Apr 27, 00:40 UTCApr 27, 01:45 UTC1h 5m
2026-04-26 UAE9850 DXB → TPE Apr 26, 21:25 UTCApr 26, 21:55 UTC30m
2026-04-26 UAE9839 HKG → DWC Apr 26, 14:35 UTCApr 26, 15:00 UTC25m
2026-04-26 UAE9839 HKG → DWC Apr 26, 09:15 UTCApr 26, 11:25 UTC2h 10m
2026-04-26 UAE9839 HKG → DWC Apr 26, 07:10 UTCApr 26, 07:20 UTC10m
2026-04-26 UAE9838 DWC → HKG Apr 26, 02:50 UTCApr 26, 03:20 UTC30m
2026-04-25 UAE9838 DWC → HKG Apr 25, 20:35 UTCApr 26, 01:00 UTC4h 25m
2026-04-25 UAE9841 HKG → DWC Apr 25, 18:20 UTCApr 25, 18:45 UTC25m
2026-04-25 UAE9841 HKG → DWC Apr 25, 14:00 UTCApr 25, 15:20 UTC1h 20m
2026-04-25 UAE9841 HKG → DWC Apr 25, 13:05 UTCApr 25, 13:55 UTC50m
2026-04-25 UAE9841 HKG → DWC Apr 25, 11:00 UTCApr 25, 11:15 UTC15m
2026-04-25 UAE9840 DWC → HKG Apr 25, 06:40 UTCApr 25, 07:10 UTC30m
2026-04-25 UAE9840 DWC → HKG Apr 25, 00:25 UTCApr 25, 04:40 UTC4h 15m
2026-04-24 UAE9853 HAN → DWC Apr 24, 14:55 UTCApr 24, 15:20 UTC25m
2026-04-24 UAE9853 HAN → DWC Apr 24, 09:50 UTCApr 24, 11:55 UTC2h 5m
2026-04-24 UAE9853 HAN → DWC Apr 24, 07:40 UTCApr 24, 07:55 UTC15m
2026-04-24 UAE9852 DWC → HAN Apr 24, 01:45 UTCApr 24, 02:10 UTC25m
2026-04-23 UAE9852 DWC → HAN Apr 23, 19:35 UTCApr 23, 23:50 UTC4h 15m
2026-04-23 UAE9837 HKG → HKG Apr 23, 17:30 UTCApr 23, 17:55 UTC24m
2026-04-23 UAE9837 HKG → HKG Apr 23, 12:25 UTCApr 23, 14:25 UTC2h 0m
2026-04-23 UAE9837 HKG → HKG Apr 23, 10:20 UTCApr 23, 10:35 UTC15m
2026-04-23 UAE9836 DWC → HKG Apr 23, 06:05 UTCApr 23, 06:35 UTC30m
2026-04-22 UAE9836 DWC → HKG Apr 22, 23:55 UTCApr 23, 04:15 UTC4h 20m
2026-04-22 UAE9839 HKG → DWC Apr 22, 18:30 UTCApr 22, 18:50 UTC20m
2026-04-22 UAE9839 HKG → DWC Apr 22, 13:05 UTCApr 22, 15:10 UTC2h 5m
2026-04-22 UAE9839 HKG → DWC Apr 22, 11:05 UTCApr 22, 11:20 UTC15m
2026-04-22 UAE9838 DWC → HKG Apr 22, 07:45 UTCApr 22, 08:20 UTC35m
2026-04-22 UAE9838 DWC → HKG Apr 22, 01:35 UTCApr 22, 06:01 UTC4h 25m
2026-04-21 UAE9863 HKG → DWC Apr 21, 09:25 UTCApr 21, 14:31 UTC5h 5m

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 LZ-CJA page for operator, model, and routing details .

Mode-S 452149 frequently asked

What is Mode-S code 452149?
452149 is an ICAO 24-bit transponder address. Allocated to Bulgaria. Assigned to LZ-CJA.
Where is Mode-S 452149 registered?
Mode-S code 452149 is allocated to Bulgaria (BG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 452149 broadcasting right now?
No active broadcast right now. Last signal was 27d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 452149, octal 21220511, decimal 4,530,505.
What flights does 452149 operate?
Mode-S 452149 has broadcast 20 distinct callsigns, including UAE9841, UAE9840, UAE9780, UAE9781, UAE9839.