Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

45212D

ICAO 24-bit transponder address · allocated to Bulgaria

Currently assigned to LZ-CXD · BOEING 737-800

Hex
45212D
Octal
21220455
Decimal
4,530,477
Country
BG
Tail
LZ-CXD
Type
B738
No current signal · last broadcast 1d ago
Flights observed
82
Distinct callsigns
16
Country
BG
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 45212D.

Country allocation

The ICAO 24-bit address 45212D 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 16 distinct

Callsign Airline Flights Last seen
ADZ6810 - 30 2026-07-03
ADZ6809 - 30 2026-07-03
ADZ7859 - 5 2026-05-29
ADZ7858 - 5 2026-06-02
ADZ770P Compass Cargo Airlines 1 2026-05-19
ADZ737P - 1 2026-05-14
ADZ705P - 1 2026-06-02
ADZ6RU - 1 2026-05-20
ADZ681P - 1 2026-06-14
ADZ5961 Compass Cargo Airlines 1 2026-05-21
ADZ5959 - 1 2026-05-21
ADZ361F - 1 2026-06-10
ADZ360P - 1 2026-06-09
ADZ3601 - 1 2026-06-09
ADZ2961 Compass Cargo Airlines 1 2026-06-03
ADZ2960 Compass Cargo Airlines 1 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-03 ADZ6809 - Jul 3, 19:50 UTCJul 3, 20:45 UTC55m
2026-07-03 ADZ6809 - Jul 3, 16:25 UTCJul 3, 18:55 UTC2h 30m
2026-07-03 ADZ6810 - Jul 3, 05:10 UTCJul 3, 08:00 UTC2h 50m
2026-07-03 ADZ6810 CGN → BLL Jul 3, 03:05 UTCJul 3, 04:05 UTC1h 0m
2026-07-02 ADZ6809 - Jul 2, 20:20 UTCJul 2, 21:15 UTC55m
2026-07-02 ADZ6809 - Jul 2, 16:25 UTCJul 2, 19:05 UTC2h 40m
2026-07-02 ADZ6810 - Jul 2, 05:00 UTCJul 2, 07:45 UTC2h 45m
2026-07-02 ADZ6810 CGN → BLL Jul 2, 03:05 UTCJul 2, 04:00 UTC55m
2026-07-01 ADZ6809 - Jul 1, 20:05 UTCJul 1, 21:00 UTC55m
2026-07-01 ADZ6809 KEF → BLL Jul 1, 16:20 UTCJul 1, 18:50 UTC2h 30m
2026-07-01 ADZ6810 - Jul 1, 05:05 UTCJul 1, 07:45 UTC2h 40m
2026-07-01 ADZ6810 CGN → BLL Jul 1, 03:10 UTCJul 1, 04:00 UTC50m
2026-06-30 ADZ6809 - Jun 30, 19:50 UTCJun 30, 20:55 UTC1h 5m
2026-06-30 ADZ6809 KEF → BLL Jun 30, 16:25 UTCJun 30, 18:55 UTC2h 30m
2026-06-30 ADZ6810 BLL → KEF Jun 30, 05:00 UTCJun 30, 07:50 UTC2h 50m
2026-06-30 ADZ6810 CGN → BLL Jun 30, 03:10 UTCJun 30, 04:00 UTC50m
2026-06-29 ADZ6809 - Jun 29, 20:15 UTCJun 29, 21:14 UTC1h 0m
2026-06-29 ADZ6809 KEF → BLL Jun 29, 16:25 UTCJun 29, 19:00 UTC2h 35m
2026-06-29 ADZ6810 - Jun 29, 04:34 UTCJun 29, 07:05 UTC2h 30m
2026-06-29 ADZ6810 - Jun 29, 02:30 UTCJun 29, 03:14 UTC45m
2026-06-26 ADZ6809 - Jun 26, 19:55 UTCJun 26, 20:55 UTC1h 0m
2026-06-26 ADZ6809 KEF → BLL Jun 26, 16:24 UTCJun 26, 18:49 UTC2h 25m
2026-06-26 ADZ6810 - Jun 26, 04:39 UTCJun 26, 07:30 UTC2h 50m
2026-06-26 ADZ6810 CGN → BLL Jun 26, 02:44 UTCJun 26, 03:39 UTC55m
2026-06-25 ADZ6809 - Jun 25, 20:05 UTCJun 25, 21:05 UTC1h 0m
2026-06-25 ADZ6809 - Jun 25, 16:39 UTCJun 25, 19:09 UTC2h 30m
2026-06-25 ADZ6810 - Jun 25, 04:40 UTCJun 25, 07:34 UTC2h 55m
2026-06-25 ADZ6810 CGN → BLL Jun 25, 02:45 UTCJun 25, 03:44 UTC1h 0m
2026-06-24 ADZ6809 - Jun 24, 19:59 UTCJun 24, 20:54 UTC55m
2026-06-24 ADZ6809 - Jun 24, 16:34 UTCJun 24, 19:00 UTC2h 25m
2026-06-24 ADZ6810 - Jun 24, 04:34 UTCJun 24, 07:30 UTC2h 55m
2026-06-24 ADZ6810 CGN → BLL Jun 24, 02:45 UTCJun 24, 03:40 UTC55m
2026-06-23 ADZ6809 - Jun 23, 20:15 UTCJun 23, 21:10 UTC55m
2026-06-23 ADZ6809 KEF → BLL Jun 23, 16:14 UTCJun 23, 18:34 UTC2h 20m
2026-06-23 ADZ6810 - Jun 23, 04:35 UTCJun 23, 07:19 UTC2h 45m
2026-06-23 ADZ6810 CGN → BLL Jun 23, 02:40 UTCJun 23, 03:39 UTC1h 0m
2026-06-22 ADZ6809 - Jun 22, 20:14 UTCJun 22, 21:10 UTC55m
2026-06-22 ADZ6809 - Jun 22, 16:40 UTCJun 22, 19:05 UTC2h 25m
2026-06-22 ADZ6810 - Jun 22, 04:15 UTCJun 22, 07:14 UTC3h 0m
2026-06-22 ADZ6810 CGN → BLL Jun 22, 02:14 UTCJun 22, 03:10 UTC55m
2026-06-19 ADZ6809 - Jun 19, 19:49 UTCJun 19, 20:49 UTC1h 0m
2026-06-19 ADZ6809 KEF → BLL Jun 19, 16:25 UTCJun 19, 18:59 UTC2h 35m
2026-06-19 ADZ6810 - Jun 19, 05:24 UTCJun 19, 08:04 UTC2h 40m
2026-06-19 ADZ6810 CGN → BLL Jun 19, 03:24 UTCJun 19, 04:14 UTC50m
2026-06-18 ADZ6809 - Jun 18, 19:50 UTCJun 18, 20:45 UTC55m
2026-06-18 ADZ6809 KEF → BLL Jun 18, 16:25 UTCJun 18, 18:55 UTC2h 30m
2026-06-18 ADZ6810 - Jun 18, 05:00 UTCJun 18, 07:50 UTC2h 50m
2026-06-18 ADZ6810 - Jun 18, 03:05 UTCJun 18, 04:00 UTC55m
2026-06-17 ADZ6809 - Jun 17, 20:05 UTCJun 17, 21:00 UTC55m
2026-06-17 ADZ6809 KEF → BLL Jun 17, 16:20 UTCJun 17, 19:00 UTC2h 40m

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

Mode-S 45212D frequently asked

What is Mode-S code 45212D?
45212D is an ICAO 24-bit transponder address. Allocated to Bulgaria. Assigned to LZ-CXD.
Where is Mode-S 45212D registered?
Mode-S code 45212D is allocated to Bulgaria (BG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 45212D broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 45212D, octal 21220455, decimal 4,530,477.
What flights does 45212D operate?
Mode-S 45212D has broadcast 16 distinct callsigns, including ADZ6810, ADZ6809, ADZ7859, ADZ7858, ADZ770P.