Apparatus

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sensors Mode-S transponder

452142

ICAO 24-bit transponder address · allocated to Bulgaria

Currently assigned to LZ-AMS · AIRBUS A220-300

Hex
452142
Octal
21220502
Decimal
4,530,498
Country
BG
Tail
LZ-AMS
Type
BCS3
No current signal · last broadcast 11h ago
Flights observed
171
Distinct callsigns
20
Country
BG
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 452142.

Country allocation

The ICAO 24-bit address 452142 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
LZB462 Bulgaria Air 15 2026-05-29
LZB461 Bulgaria Air 15 2026-05-29
LZB978 Bulgaria Air 10 2026-05-29
LZB977 Bulgaria Air 10 2026-05-29
LZB974 Bulgaria Air 10 2026-05-14
LZB973 Bulgaria Air 10 2026-05-14
LZB972 Bulgaria Air 9 2026-05-14
LZB408 Bulgaria Air 8 2026-05-15
LZB407 Bulgaria Air 8 2026-05-15
LZB971 Bulgaria Air 7 2026-05-12
LZB432 Bulgaria Air 7 2026-05-15
LZB431 Bulgaria Air 6 2026-05-15
LZB455 Bulgaria Air 5 2026-05-12
LZB852 Bulgaria Air 4 2026-04-29
LZB851 Bulgaria Air 4 2026-04-29
LZB808 Bulgaria Air 4 2026-05-14
LZB807 Bulgaria Air 4 2026-05-14
LZB456 Bulgaria Air 4 2026-05-12
LZB449 Bulgaria Air 4 2026-05-02
LZB320 Bulgaria Air 4 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 LZB978 VAR → SOF May 29, 14:00 UTCMay 29, 14:15 UTC15m
2026-05-29 LZB977 SOF → VAR May 29, 12:25 UTCMay 29, 13:00 UTC35m
2026-05-29 LZB462 AMS → SOF May 29, 09:05 UTCMay 29, 11:10 UTC2h 5m
2026-05-29 LZB461 SOF → AMS May 29, 04:20 UTCMay 29, 06:50 UTC2h 30m
2026-05-15 LZB408 BRU → SOF May 15, 18:40 UTCMay 15, 20:35 UTC1h 55m
2026-05-15 LZB407 SOF → BRU May 15, 15:40 UTCMay 15, 17:50 UTC2h 10m
2026-05-15 LZB978 VAR → SOF May 15, 13:55 UTCMay 15, 14:15 UTC20m
2026-05-15 LZB977 SOF → VAR May 15, 12:25 UTCMay 15, 12:50 UTC25m
2026-05-15 LZB432 CDG → SOF May 15, 08:45 UTCMay 15, 10:45 UTC2h 0m
2026-05-15 LZB431 SOF → CDG May 15, 04:15 UTCMay 15, 06:45 UTC2h 30m
2026-05-14 LZB974 VAR → SOF May 14, 19:20 UTCMay 14, 19:45 UTC25m
2026-05-14 LZB973 SOF → VAR May 14, 18:05 UTCMay 14, 18:20 UTC15m
2026-05-14 LZB808 ATH → SOF May 14, 16:00 UTCMay 14, 16:45 UTC45m
2026-05-14 LZB807 SOF → ATH May 14, 13:50 UTCMay 14, 14:40 UTC50m
2026-05-14 LZB302 PRG → SOF May 14, 10:10 UTCMay 14, 11:30 UTC1h 20m
2026-05-14 LZB301 SOF → PRG May 14, 07:25 UTCMay 14, 08:55 UTC1h 30m
2026-05-14 LZB972 VAR → SOF May 14, 05:35 UTCMay 14, 05:55 UTC20m
2026-05-14 LZB975 SOF → VAR May 14, 04:00 UTCMay 14, 04:15 UTC15m
2026-05-13 LZB408 BRU → SOF May 13, 18:50 UTCMay 13, 20:50 UTC2h 0m
2026-05-13 LZB407 SOF → BRU May 13, 15:35 UTCMay 13, 17:50 UTC2h 15m
2026-05-13 LZB978 VAR → SOF May 13, 13:55 UTCMay 13, 14:20 UTC25m
2026-05-13 LZB977 SOF → VAR May 13, 12:20 UTCMay 13, 12:50 UTC30m
2026-05-13 LZB432 CDG → SOF May 13, 08:45 UTCMay 13, 10:45 UTC2h 0m
2026-05-13 LZB431 SOF → CDG May 13, 04:25 UTCMay 13, 07:00 UTC2h 35m
2026-05-12 LZB456 MXP → SOF May 12, 10:25 UTCMay 12, 11:50 UTC1h 25m
2026-05-12 LZB455 SOF → MXP May 12, 07:15 UTCMay 12, 09:05 UTC1h 50m
2026-05-12 LZB972 VAR → SOF May 12, 05:30 UTCMay 12, 05:50 UTC20m
2026-05-12 LZB971 SOF → VAR May 12, 04:15 UTCMay 12, 04:40 UTC25m
2026-05-11 LZB320 BER → SOF May 11, 10:30 UTCMay 11, 12:10 UTC1h 40m
2026-05-11 LZB319 SOF → BER May 11, 07:30 UTCMay 11, 09:15 UTC1h 45m
2026-05-11 LZB972 VAR → SOF May 11, 05:40 UTCMay 11, 06:00 UTC20m
2026-05-11 LZB971 SOF → VAR May 11, 04:15 UTCMay 11, 04:40 UTC25m
2026-05-10 LZB974 VAR → SOF May 10, 19:35 UTCMay 10, 19:54 UTC20m
2026-05-10 LZB973 SOF → VAR May 10, 18:15 UTCMay 10, 18:39 UTC25m
2026-05-10 LZB456 MXP → SOF May 10, 15:19 UTCMay 10, 16:44 UTC1h 25m
2026-05-10 LZB455 SOF → MXP May 10, 12:15 UTCMay 10, 13:55 UTC1h 40m
2026-05-10 LZB462 AMS → SOF May 10, 08:35 UTCMay 10, 10:40 UTC2h 5m
2026-05-10 LZB461 SOF → AMS May 10, 04:39 UTCMay 10, 07:19 UTC2h 40m
2026-05-09 LZB462 AMS → SOF May 9, 09:10 UTCMay 9, 11:15 UTC2h 5m
2026-05-09 LZB461 SOF → AMS May 9, 04:25 UTCMay 9, 06:50 UTC2h 25m
2026-05-08 LZB974 VAR → SOF May 8, 19:15 UTCMay 8, 19:35 UTC20m
2026-05-08 LZB973 SOF → VAR May 8, 18:05 UTCMay 8, 18:30 UTC25m
2026-05-08 LZB320 BER → SOF May 8, 15:05 UTCMay 8, 16:35 UTC1h 30m
2026-05-08 LZB319 SOF → BER May 8, 12:14 UTCMay 8, 14:00 UTC1h 45m
2026-05-08 LZB462 AMS → SOF May 8, 08:44 UTCMay 8, 10:49 UTC2h 5m
2026-05-08 LZB461 SOF → AMS May 8, 04:29 UTCMay 8, 06:54 UTC2h 25m
2026-05-07 LZB974 VAR → SOF May 7, 19:15 UTCMay 7, 19:30 UTC15m
2026-05-07 LZB973 SOF → VAR May 7, 18:05 UTCMay 7, 18:25 UTC20m
2026-05-07 LZB808 ATH → SOF May 7, 16:05 UTCMay 7, 16:50 UTC45m
2026-05-07 LZB807 SOF → ATH May 7, 14:05 UTCMay 7, 14:50 UTC45m

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

Mode-S 452142 frequently asked

What is Mode-S code 452142?
452142 is an ICAO 24-bit transponder address. Allocated to Bulgaria. Assigned to LZ-AMS.
Where is Mode-S 452142 registered?
Mode-S code 452142 is allocated to Bulgaria (BG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 452142 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 452142, octal 21220502, decimal 4,530,498.
What flights does 452142 operate?
Mode-S 452142 has broadcast 20 distinct callsigns, including LZB462, LZB461, LZB978, LZB977, LZB974.