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 19d ago
Flights observed
144
Distinct callsigns
20
Country
BG
Last broadcast
19d 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 18 2026-06-05
BCS236P - 17 2026-06-12
BCS5959 - 14 2026-06-05
BCS460 European Air Transport 13 2026-06-12
BCS4243 - 12 2026-06-11
BCS80A - 10 2026-06-22
BCS87W - 7 2026-06-22
BCS4850 European Air Transport 7 2026-06-21
BCS9009 - 6 2026-06-27
BCS9008 - 6 2026-06-27
BCS7CW - 4 2026-06-19
BCS6RU - 4 2026-06-19
BCS7XA European Air Transport 3 2026-05-17
BCS7510 European Air Transport 3 2026-04-25
BCS95W - 2 2026-06-26
BCS822P European Air Transport 2 2026-06-23
BCS230P European Air Transport 2 2026-04-25
BCS21Q - 2 2026-06-26
CGF778P - 1 2026-06-28
BCS9117 European Air Transport 1 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-28 CGF778P - Jun 28, 08:09 UTCJun 28, 09:50 UTC1h 40m
2026-06-27 BCS9009 - Jun 27, 13:44 UTCJun 27, 15:30 UTC1h 45m
2026-06-27 BCS9008 - Jun 27, 03:55 UTCJun 27, 05:39 UTC1h 45m
2026-06-26 BCS21Q - Jun 26, 19:55 UTCJun 26, 21:39 UTC1h 45m
2026-06-26 BCS95W - Jun 26, 04:04 UTCJun 26, 05:10 UTC1h 5m
2026-06-25 BCS21Q - Jun 25, 21:50 UTCJun 25, 22:20 UTC30m
2026-06-25 BCS32B - Jun 25, 19:05 UTCJun 25, 19:59 UTC55m
2026-06-25 BCS95W - Jun 25, 04:20 UTCJun 25, 05:25 UTC1h 5m
2026-06-25 BCS843 EMA → CGN Jun 25, 02:05 UTCJun 25, 02:54 UTC50m
2026-06-23 BCS406 - Jun 23, 21:05 UTCJun 23, 22:10 UTC1h 5m
2026-06-23 BCS5867 - Jun 23, 17:25 UTCJun 23, 19:04 UTC1h 40m
2026-06-23 BCS822P LEJ → MXP Jun 23, 14:39 UTCJun 23, 15:59 UTC1h 20m
2026-06-22 BCS80A - Jun 22, 20:34 UTCJun 22, 21:49 UTC1h 15m
2026-06-22 BCS87W - Jun 22, 18:30 UTCJun 22, 19:14 UTC45m
2026-06-21 BCS4850 LEJ → LJU Jun 21, 23:00 UTCJun 21, 23:59 UTC1h 0m
2026-06-20 BCS9009 - Jun 20, 13:49 UTCJun 20, 15:39 UTC1h 50m
2026-06-20 BCS9008 - Jun 20, 03:54 UTCJun 20, 05:44 UTC1h 50m
2026-06-19 BCS7CW - Jun 19, 20:24 UTCJun 19, 21:44 UTC1h 20m
2026-06-19 BCS6RU - Jun 19, 03:34 UTCJun 19, 05:00 UTC1h 25m
2026-06-18 BCS7CW - Jun 18, 20:40 UTCJun 18, 21:55 UTC1h 15m
2026-06-18 BCS6RU - Jun 18, 03:35 UTCJun 18, 04:55 UTC1h 20m
2026-06-17 BCS7CW - Jun 17, 20:20 UTCJun 17, 21:45 UTC1h 25m
2026-06-17 BCS6RU - Jun 17, 03:45 UTCJun 17, 05:05 UTC1h 20m
2026-06-16 BCS7CW - Jun 16, 20:20 UTCJun 16, 21:45 UTC1h 25m
2026-06-16 BCS6RU LEJ → PSA Jun 16, 03:39 UTCJun 16, 05:00 UTC1h 20m
2026-06-15 BCS80A MXP → LEJ Jun 15, 20:40 UTCJun 15, 22:05 UTC1h 25m
2026-06-15 BCS87W - Jun 15, 18:25 UTCJun 15, 19:10 UTC45m
2026-06-14 BCS4850 LEJ → LJU Jun 14, 22:55 UTCJun 15, 00:05 UTC1h 9m
2026-06-13 BCS9009 SOF → SOF Jun 13, 13:30 UTCJun 13, 15:25 UTC1h 55m
2026-06-13 BCS9008 - Jun 13, 03:55 UTCJun 13, 05:30 UTC1h 34m
2026-06-12 BCS80A MXP → LEJ Jun 12, 20:20 UTCJun 12, 21:45 UTC1h 25m
2026-06-12 BCS236P - Jun 12, 03:30 UTCJun 12, 04:50 UTC1h 20m
2026-06-12 BCS460 EMA → MXP Jun 12, 01:05 UTCJun 12, 02:05 UTC1h 0m
2026-06-11 BCS4243 - Jun 11, 20:55 UTCJun 11, 21:35 UTC40m
2026-06-11 BCS236P - Jun 11, 03:40 UTCJun 11, 05:25 UTC1h 45m
2026-06-11 BCS460 EMA → MXP Jun 11, 01:05 UTCJun 11, 02:10 UTC1h 5m
2026-06-08 BCS811 CIA → LEJ Jun 8, 21:35 UTCJun 8, 22:50 UTC1h 15m
2026-06-08 BCS87W - Jun 8, 18:35 UTCJun 8, 19:35 UTC1h 0m
2026-06-07 BCS4850 LEJ → LJU Jun 7, 23:00 UTCJun 8, 00:00 UTC1h 0m
2026-06-06 BCS9009 SOF → SOF Jun 6, 13:44 UTCJun 6, 15:39 UTC1h 55m
2026-06-06 BCS9008 - Jun 6, 04:00 UTCJun 6, 05:50 UTC1h 50m
2026-06-05 BCS71R VNO → LEJ Jun 5, 18:45 UTCJun 5, 20:10 UTC1h 25m
2026-06-05 BCS5959 - Jun 5, 03:15 UTCJun 5, 04:30 UTC1h 15m
2026-06-04 BCS71R VNO → LEJ Jun 4, 18:45 UTCJun 4, 20:15 UTC1h 30m
2026-06-04 BCS5959 - Jun 4, 03:15 UTCJun 4, 04:35 UTC1h 20m
2026-06-03 BCS71R VNO → LEJ Jun 3, 18:50 UTCJun 3, 20:15 UTC1h 25m
2026-06-03 BCS5959 - Jun 3, 03:25 UTCJun 3, 04:45 UTC1h 20m
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

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 19d 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.