Apparatus

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sensors Mode-S transponder

452084

ICAO 24-bit transponder address · allocated to Bulgaria

Currently assigned to LZ-CGW · BOEING 737-400

Hex
452084
Octal
21220204
Decimal
4,530,308
Country
BG
Tail
LZ-CGW
Type
B734
No current signal · last broadcast 4h ago
Flights observed
97
Distinct callsigns
20
Country
BG
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 452084.

Country allocation

The ICAO 24-bit address 452084 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
BCS71R European Air Transport 15 2026-06-02
BCS236P - 15 2026-05-22
BCS5959 - 11 2026-06-02
BCS460 European Air Transport 11 2026-05-22
BCS4243 European Air Transport 11 2026-05-21
BCS80A European Air Transport 7 2026-06-01
BCS87W - 4 2026-06-01
BCS4850 European Air Transport 4 2026-05-31
BCS7XA European Air Transport 3 2026-05-17
BCS7510 European Air Transport 3 2026-04-25
BCS9009 European Air Transport 2 2026-05-16
BCS9008 - 2 2026-05-16
BCS230P European Air Transport 2 2026-04-25
BCS9117 European Air Transport 1 2026-04-27
BCS9116 - 1 2026-04-27
BCS871 European Air Transport 1 2026-04-26
BCS850 European Air Transport 1 2026-05-08
BCS822P European Air Transport 1 2026-05-26
BCS4908 European Air Transport 1 2026-05-26
BCS417 European Air Transport 1 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 BCS71R VNO → LEJ Jun 2, 19:00 UTCJun 2, 20:20 UTC1h 20m
2026-06-02 BCS5959 - Jun 2, 03:15 UTCJun 2, 04:40 UTC1h 25m
2026-06-01 BCS80A MXP → LEJ Jun 1, 20:40 UTCJun 1, 21:55 UTC1h 15m
2026-06-01 BCS87W - Jun 1, 18:20 UTCJun 1, 19:00 UTC40m
2026-05-31 BCS4850 LEJ → LJU May 31, 23:40 UTCJun 1, 00:40 UTC1h 0m
2026-05-26 BCS822P LEJ → MXP May 26, 04:10 UTCMay 26, 05:00 UTC50m
2026-05-26 BCS4908 BSL → EMA May 26, 02:35 UTCMay 26, 03:19 UTC45m
2026-05-25 BCS417 VIT → BRU May 25, 23:10 UTCMay 25, 23:54 UTC45m
2026-05-25 BCS80A MXP → LEJ May 25, 20:34 UTCMay 25, 21:45 UTC1h 10m
2026-05-25 BCS87W - May 25, 18:30 UTCMay 25, 19:10 UTC40m
2026-05-24 BCS4850 LEJ → LJU May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-22 BCS80A MXP → LEJ May 22, 20:25 UTCMay 22, 21:35 UTC1h 10m
2026-05-22 BCS236P - May 22, 03:25 UTCMay 22, 04:40 UTC1h 15m
2026-05-22 BCS460 EMA → MXP May 22, 01:00 UTCMay 22, 02:00 UTC1h 0m
2026-05-21 BCS4243 MUC → MXP May 21, 20:50 UTCMay 21, 21:35 UTC45m
2026-05-21 BCS236P BCN → MUC May 21, 03:10 UTCMay 21, 04:55 UTC1h 45m
2026-05-21 BCS460 EMA → MXP May 21, 01:00 UTCMay 21, 02:10 UTC1h 10m
2026-05-20 BCS4243 MUC → MXP May 20, 20:45 UTCMay 20, 21:20 UTC35m
2026-05-20 BCS236P - May 20, 04:10 UTCMay 20, 05:45 UTC1h 36m
2026-05-20 BCS460 EMA → MXP May 20, 01:00 UTCMay 20, 02:10 UTC1h 10m
2026-05-19 BCS4243 MUC → MXP May 19, 20:45 UTCMay 19, 21:30 UTC45m
2026-05-19 BCS236P - May 19, 03:35 UTCMay 19, 05:15 UTC1h 40m
2026-05-19 BCS460 EMA → MXP May 19, 01:05 UTCMay 19, 02:10 UTC1h 5m
2026-05-18 BCS4243 MUC → MXP May 18, 20:50 UTCMay 18, 21:35 UTC45m
2026-05-18 BCS236P - May 18, 17:50 UTCMay 18, 18:40 UTC49m
2026-05-17 BCS7XA LEJ → LEJ May 17, 20:01 UTCMay 17, 21:10 UTC1h 10m
2026-05-16 BCS9009 SOF → SOF May 16, 14:01 UTCMay 16, 15:40 UTC1h 40m
2026-05-16 BCS9008 - May 16, 04:05 UTCMay 16, 05:51 UTC1h 46m
2026-05-15 BCS80A MXP → LEJ May 15, 20:20 UTCMay 15, 21:30 UTC1h 10m
2026-05-15 BCS236P BCN → MXP May 15, 03:35 UTCMay 15, 04:40 UTC1h 5m
2026-05-15 BCS460 EMA → MXP May 15, 00:55 UTCMay 15, 02:15 UTC1h 20m
2026-05-14 BCS236P BCN → MXP May 14, 03:35 UTCMay 14, 04:40 UTC1h 5m
2026-05-14 BCS460 EMA → MXP May 14, 01:05 UTCMay 14, 02:20 UTC1h 15m
2026-05-13 BCS4243 MUC → MXP May 13, 20:40 UTCMay 13, 21:25 UTC45m
2026-05-13 BCS236P BCN → MUC May 13, 03:25 UTCMay 13, 05:10 UTC1h 45m
2026-05-13 BCS460 EMA → MXP May 13, 00:55 UTCMay 13, 02:05 UTC1h 10m
2026-05-12 BCS4243 MUC → MXP May 12, 20:45 UTCMay 12, 21:30 UTC45m
2026-05-12 BCS236P - May 12, 03:30 UTCMay 12, 05:10 UTC1h 40m
2026-05-11 BCS4243 MUC → MXP May 11, 20:35 UTCMay 11, 21:15 UTC40m
2026-05-11 BCS236P BUD → MUC May 11, 18:00 UTCMay 11, 19:00 UTC1h 0m
2026-05-10 BCS7XA LEJ → LEJ May 10, 20:05 UTCMay 10, 21:10 UTC1h 5m
2026-05-09 BCS9009 SOF → SOF May 9, 13:35 UTCMay 9, 15:20 UTC1h 45m
2026-05-09 BCS9008 - May 9, 04:05 UTCMay 9, 05:40 UTC1h 35m
2026-05-08 BCS850 EMA → BRU May 8, 18:35 UTCMay 8, 21:10 UTC2h 35m
2026-05-08 BCS236P BCN → ATH May 8, 03:55 UTCMay 8, 06:20 UTC2h 25m
2026-05-08 BCS460 EMA → MXP May 8, 01:19 UTCMay 8, 02:35 UTC1h 15m
2026-05-07 BCS4243 MUC → MXP May 7, 20:40 UTCMay 7, 21:35 UTC55m
2026-05-07 BCS236P - May 7, 03:25 UTCMay 7, 05:00 UTC1h 35m
2026-05-07 BCS460 EMA → MXP May 7, 01:00 UTCMay 7, 02:20 UTC1h 20m
2026-05-06 BCS4243 MUC → MXP May 6, 20:45 UTCMay 6, 21:40 UTC55m

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

Mode-S 452084 frequently asked

What is Mode-S code 452084?
452084 is an ICAO 24-bit transponder address. Allocated to Bulgaria. Assigned to LZ-CGW.
Where is Mode-S 452084 registered?
Mode-S code 452084 is allocated to Bulgaria (BG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 452084 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 452084, octal 21220204, decimal 4,530,308.
What flights does 452084 operate?
Mode-S 452084 has broadcast 20 distinct callsigns, including BCS71R, BCS236P, BCS5959, BCS460, BCS4243.