Apparatus

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sensors Mode-S transponder

452172

ICAO 24-bit transponder address · allocated to Bulgaria

Currently assigned to LZ-EAK · AIRBUS A-320

Hex
452172
Octal
21220562
Decimal
4,530,546
Country
BG
Tail
LZ-EAK
Type
A320
No current signal · last broadcast 5h ago
Flights observed
225
Distinct callsigns
20
Country
BG
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 452172.

Country allocation

The ICAO 24-bit address 452172 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
EAF9639 - 11 2026-07-11
EAF9515 European Aviation Air Charter 9 2026-07-17
EAF9514 - 9 2026-07-17
EAF9792 - 8 2026-07-12
EAF9791 - 8 2026-07-12
EAF9745 - 8 2026-07-12
EAF9744 - 8 2026-07-12
EAF9743 - 8 2026-07-12
EAF9742 - 8 2026-07-12
EAF9535 - 8 2026-07-17
EAF9534 - 8 2026-07-17
EAF9429 - 8 2026-07-02
EAF9112 - 8 2026-07-13
EAF9111 - 8 2026-07-13
EAF9537 - 7 2026-07-10
EAF9536 - 7 2026-07-10
EAF9431 - 7 2026-07-16
EAF9430 - 7 2026-07-16
EAF9219 - 6 2026-07-14
EAF9218 - 6 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 EAF9515 RHO → OSR Jul 17, 15:20 UTCJul 17, 18:25 UTC3h 5m
2026-07-17 EAF9534 PED → RHO Jul 17, 11:39 UTCJul 17, 14:00 UTC2h 20m
2026-07-17 EAF9535 RHO → PED Jul 17, 06:50 UTCJul 17, 09:20 UTC2h 30m
2026-07-17 EAF9514 - Jul 17, 03:25 UTCJul 17, 05:30 UTC2h 5m
2026-07-16 EAF9431 - Jul 16, 16:19 UTCJul 16, 17:49 UTC1h 30m
2026-07-16 EAF9430 - Jul 16, 13:05 UTCJul 16, 14:29 UTC1h 25m
2026-07-16 EAF9428 - Jul 16, 02:40 UTCJul 16, 11:45 UTC9h 5m
2026-07-14 EAF9219 - Jul 14, 13:35 UTCJul 14, 15:00 UTC1h 25m
2026-07-14 EAF9218 - Jul 14, 10:50 UTCJul 14, 12:15 UTC1h 25m
2026-07-13 EAF9115 - Jul 13, 20:10 UTCJul 13, 21:25 UTC1h 15m
2026-07-13 EAF9114 - Jul 13, 17:00 UTCJul 13, 18:05 UTC1h 5m
2026-07-13 EAF9110 - Jul 13, 13:55 UTCJul 13, 15:35 UTC1h 40m
2026-07-13 EAF9109 - Jul 13, 10:55 UTCJul 13, 12:25 UTC1h 30m
2026-07-13 EAF9112 - Jul 13, 06:55 UTCJul 13, 09:15 UTC2h 20m
2026-07-13 EAF9111 - Jul 13, 03:05 UTCJul 13, 05:15 UTC2h 10m
2026-07-12 EAF9743 - Jul 12, 23:05 UTCJul 13, 01:15 UTC2h 10m
2026-07-12 EAF9744 - Jul 12, 19:30 UTCJul 12, 21:50 UTC2h 20m
2026-07-12 EAF9792 - Jul 12, 14:05 UTCJul 12, 16:01 UTC1h 55m
2026-07-12 EAF9791 - Jul 12, 10:25 UTCJul 12, 12:30 UTC2h 5m
2026-07-12 EAF9745 - Jul 12, 06:15 UTCJul 12, 08:45 UTC2h 30m
2026-07-12 EAF9742 - Jul 12, 02:35 UTCJul 12, 04:40 UTC2h 5m
2026-07-11 EAF9639 BRQ → OSR Jul 11, 15:40 UTCJul 11, 22:35 UTC6h 55m
2026-07-11 EAF9641 - Jul 11, 07:10 UTCJul 11, 14:15 UTC7h 5m
2026-07-10 EAF9537 - Jul 10, 23:10 UTCJul 11, 01:25 UTC2h 15m
2026-07-10 EAF9536 - Jul 10, 18:55 UTCJul 10, 20:55 UTC2h 0m
2026-07-10 EAF9515 RHO → OSR Jul 10, 14:55 UTCJul 10, 17:30 UTC2h 35m
2026-07-10 EAF9534 PED → RHO Jul 10, 11:15 UTCJul 10, 13:30 UTC2h 15m
2026-07-10 EAF9535 RHO → PED Jul 10, 07:20 UTCJul 10, 09:55 UTC2h 35m
2026-07-10 EAF9514 - Jul 10, 03:25 UTCJul 10, 05:35 UTC2h 10m
2026-07-09 EAF9428 - Jul 9, 07:40 UTCJul 9, 10:15 UTC2h 35m
2026-07-09 EAF9428 - Jul 9, 02:15 UTCJul 9, 04:00 UTC1h 45m
2026-07-08 MAC9992 - Jul 8, 23:00 UTCJul 9, 00:50 UTC1h 50m
2026-07-08 MAC823J - Jul 8, 20:10 UTCJul 8, 21:55 UTC1h 45m
2026-07-08 MAC824 - Jul 8, 16:50 UTCJul 8, 18:30 UTC1h 40m
2026-07-08 MAC9991 - Jul 8, 11:55 UTCJul 8, 13:50 UTC1h 55m
2026-07-08 EAF9323 - Jul 8, 06:15 UTCJul 8, 07:30 UTC1h 15m
2026-07-08 EAF9322 - Jul 8, 03:40 UTCJul 8, 04:40 UTC1h 0m
2026-07-07 EAF9219 - Jul 7, 13:40 UTCJul 7, 15:10 UTC1h 30m
2026-07-07 EAF9218 - Jul 7, 10:55 UTCJul 7, 12:15 UTC1h 20m
2026-07-06 EAF9115 - Jul 6, 20:30 UTCJul 6, 21:45 UTC1h 15m
2026-07-06 EAF9114 - Jul 6, 17:30 UTCJul 6, 18:30 UTC1h 0m
2026-07-06 EAF9110 - Jul 6, 13:50 UTCJul 6, 15:25 UTC1h 35m
2026-07-06 EAF9109 - Jul 6, 11:10 UTCJul 6, 12:40 UTC1h 30m
2026-07-06 EAF9112 RHO → OSR Jul 6, 06:55 UTCJul 6, 09:20 UTC2h 25m
2026-07-06 EAF9111 - Jul 6, 03:10 UTCJul 6, 05:20 UTC2h 10m
2026-07-05 EAF9743 - Jul 5, 23:20 UTCJul 6, 01:35 UTC2h 15m
2026-07-05 EAF9744 - Jul 5, 19:45 UTCJul 5, 21:55 UTC2h 10m
2026-07-05 EAF9792 - Jul 5, 14:15 UTCJul 5, 16:25 UTC2h 10m
2026-07-05 EAF9791 - Jul 5, 10:15 UTCJul 5, 12:10 UTC1h 55m
2026-07-05 EAF9745 - Jul 5, 06:25 UTCJul 5, 08:55 UTC2h 30m

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

Mode-S 452172 frequently asked

What is Mode-S code 452172?
452172 is an ICAO 24-bit transponder address. Allocated to Bulgaria. Assigned to LZ-EAK.
Where is Mode-S 452172 registered?
Mode-S code 452172 is allocated to Bulgaria (BG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 452172 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 452172, octal 21220562, decimal 4,530,546.
What flights does 452172 operate?
Mode-S 452172 has broadcast 20 distinct callsigns, including EAF9639, EAF9515, EAF9514, EAF9792, EAF9791.