Apparatus

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sensors Mode-S transponder

452163

ICAO 24-bit transponder address · allocated to Bulgaria

Currently assigned to LZ-LIS · AIRBUS A220-100

Hex
452163
Octal
21220543
Decimal
4,530,531
Country
BG
Tail
LZ-LIS
Type
BCS1
No current signal · last broadcast 18h ago
Flights observed
271
Distinct callsigns
20
Country
BG
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 452163.

Country allocation

The ICAO 24-bit address 452163 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
LZB492 - 17 2026-07-08
LZB319 - 16 2026-06-29
LZB491 - 15 2026-07-08
LZB449 - 15 2026-07-14
LZB450 - 14 2026-07-14
LZB438 - 13 2026-07-13
LZB320 - 13 2026-06-29
LZB437 - 12 2026-07-13
LZB976 - 11 2026-07-10
LZB975 - 11 2026-07-10
LZB431 Bulgaria Air 9 2026-06-12
LZB302 - 9 2026-07-10
LZB301 - 9 2026-07-10
LZB852 - 7 2026-07-12
LZB851 - 7 2026-07-12
LZB432 Bulgaria Air 7 2026-06-12
LZB984 - 6 2026-07-11
LZB983 - 6 2026-07-11
LZB468 - 6 2026-07-07
LZB467 - 6 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 LZB450 - Jul 14, 07:30 UTCJul 14, 08:45 UTC1h 15m
2026-07-14 LZB449 - Jul 14, 04:05 UTCJul 14, 05:40 UTC1h 35m
2026-07-13 LZB438 - Jul 13, 11:35 UTCJul 13, 13:20 UTC1h 45m
2026-07-13 LZB437 SOF → FRA Jul 13, 07:45 UTCJul 13, 10:00 UTC2h 15m
2026-07-12 LZB852 - Jul 12, 08:05 UTCJul 12, 10:35 UTC2h 30m
2026-07-12 LZB851 - Jul 12, 03:45 UTCJul 12, 06:45 UTC3h 0m
2026-07-11 LZB984 - Jul 11, 19:25 UTCJul 11, 19:45 UTC20m
2026-07-11 LZB983 - Jul 11, 17:50 UTCJul 11, 18:20 UTC30m
2026-07-11 LZB478 - Jul 11, 14:35 UTCJul 11, 16:35 UTC2h 0m
2026-07-11 LZB477 - Jul 11, 10:15 UTCJul 11, 13:00 UTC2h 45m
2026-07-11 LZB450 - Jul 11, 07:20 UTCJul 11, 08:35 UTC1h 15m
2026-07-11 LZB449 - Jul 11, 04:15 UTCJul 11, 05:45 UTC1h 30m
2026-07-10 LZB976 - Jul 10, 18:45 UTCJul 10, 19:05 UTC20m
2026-07-10 LZB975 - Jul 10, 17:20 UTCJul 10, 17:50 UTC30m
2026-07-10 LZB808 - Jul 10, 15:35 UTCJul 10, 16:15 UTC40m
2026-07-10 LZB807 - Jul 10, 13:05 UTCJul 10, 13:55 UTC50m
2026-07-10 LZB302 - Jul 10, 10:30 UTCJul 10, 11:55 UTC1h 25m
2026-07-10 LZB301 - Jul 10, 07:45 UTCJul 10, 09:30 UTC1h 45m
2026-07-09 LZB472 - Jul 9, 12:10 UTCJul 9, 15:05 UTC2h 55m
2026-07-09 LZB471 - Jul 9, 07:00 UTCJul 9, 10:10 UTC3h 10m
2026-07-08 LZB574 - Jul 8, 15:25 UTCJul 8, 17:30 UTC2h 5m
2026-07-08 LZB573 SOF → TLV Jul 8, 11:25 UTCJul 8, 13:30 UTC2h 5m
2026-07-08 LZB492 ZRH → SOF Jul 8, 08:15 UTCJul 8, 09:55 UTC1h 40m
2026-07-08 LZB491 - Jul 8, 04:45 UTCJul 8, 06:45 UTC2h 0m
2026-07-07 LZB468 - Jul 7, 15:55 UTCJul 7, 18:20 UTC2h 25m
2026-07-07 LZB467 - Jul 7, 12:25 UTCJul 7, 14:45 UTC2h 20m
2026-07-07 LZB450 - Jul 7, 07:30 UTCJul 7, 09:00 UTC1h 30m
2026-07-07 LZB449 - Jul 7, 04:15 UTCJul 7, 05:45 UTC1h 30m
2026-07-06 LZB984 - Jul 6, 19:35 UTCJul 6, 20:10 UTC35m
2026-07-06 LZB983 - Jul 6, 18:05 UTCJul 6, 18:40 UTC35m
2026-07-06 LZB976 - Jul 6, 08:40 UTCJul 6, 09:15 UTC35m
2026-07-06 LZB975 - Jul 6, 07:05 UTCJul 6, 07:45 UTC40m
2026-07-05 LZB302 PRG → SOF Jul 5, 15:40 UTCJul 5, 17:15 UTC1h 35m
2026-07-05 LZB301 SOF → PRG Jul 5, 12:30 UTCJul 5, 14:10 UTC1h 40m
2026-07-05 LZB492 ZRH → SOF Jul 5, 08:30 UTCJul 5, 10:10 UTC1h 40m
2026-07-05 LZB491 - Jul 5, 05:30 UTCJul 5, 07:30 UTC2h 0m
2026-07-04 LZB972 - Jul 4, 16:30 UTCJul 4, 17:05 UTC35m
2026-07-04 LZB971 - Jul 4, 15:10 UTCJul 4, 15:40 UTC30m
2026-07-04 LZB976 - Jul 4, 09:15 UTCJul 4, 09:50 UTC35m
2026-07-04 LZB975 - Jul 4, 07:55 UTCJul 4, 08:35 UTC40m
2026-07-03 LZB438 - Jul 3, 16:35 UTCJul 3, 18:30 UTC1h 55m
2026-07-03 LZB437 SOF → FRA Jul 3, 13:00 UTCJul 3, 15:15 UTC2h 15m
2026-07-03 LZB492 ZRH → SOF Jul 3, 09:10 UTCJul 3, 10:55 UTC1h 45m
2026-07-03 LZB491 - Jul 3, 05:40 UTCJul 3, 07:35 UTC1h 55m
2026-07-02 LZB450 - Jul 2, 10:45 UTCJul 2, 12:10 UTC1h 25m
2026-07-02 LZB449 - Jul 2, 08:15 UTCJul 2, 08:50 UTC35m
2026-07-02 LZB449 SOF → PSR Jul 2, 04:10 UTCJul 2, 06:20 UTC2h 10m
2026-07-01 LZB974 - Jul 1, 20:05 UTCJul 1, 20:40 UTC35m
2026-07-01 LZB973 - Jul 1, 18:35 UTCJul 1, 19:05 UTC30m
2026-07-01 LZB472 - Jul 1, 08:20 UTCJul 1, 11:25 UTC3h 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-LIS page for operator, model, and routing details .

Mode-S 452163 frequently asked

What is Mode-S code 452163?
452163 is an ICAO 24-bit transponder address. Allocated to Bulgaria. Assigned to LZ-LIS.
Where is Mode-S 452163 registered?
Mode-S code 452163 is allocated to Bulgaria (BG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 452163 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 452163, octal 21220543, decimal 4,530,531.
What flights does 452163 operate?
Mode-S 452163 has broadcast 20 distinct callsigns, including LZB492, LZB319, LZB491, LZB449, LZB450.