sensors Mode-S transponder

451E90

ICAO 24-bit transponder address · allocated to Bulgaria

Currently assigned to LZ-FBE · AIRBUS A-320

Hex
451E90
Octal
21217220
Decimal
4,529,808
Country
BG
Tail
LZ-FBE
Type
A320
No current signal · last broadcast 1d ago
Flights observed
83
Distinct callsigns
20
Country
BG
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 451E90.

Country allocation

The ICAO 24-bit address 451E90 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
BGH3024 - 6 2026-05-31
BGH3023 - 6 2026-05-28
BGH3008 - 5 2026-05-31
BGH3005 - 5 2026-05-16
BGH3003 - 5 2026-05-09
BGH2504 BH Air 4 2026-05-29
BGH3070 - 3 2026-04-13
BGH3007 - 3 2026-05-31
BGH3004 - 3 2026-05-23
BGH3002 - 3 2026-05-09
BGH3001 - 3 2026-05-09
BGH2503 BH Air 3 2026-05-29
LZB7710 Bulgaria Air 2 2026-05-15
LZB7709 Bulgaria Air 2 2026-05-15
LZB438 Bulgaria Air 2 2026-05-25
LZB437 Bulgaria Air 2 2026-05-25
BGH7702 - 2 2026-05-10
BGH3027 - 2 2026-05-30
BGH3022 - 2 2026-05-28
BGH3021 - 2 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-01 BGH3018 - Jun 1, 11:50 UTCJun 1, 13:25 UTC1h 35m
2026-06-01 BGH3017 - Jun 1, 08:45 UTCJun 1, 10:20 UTC1h 35m
2026-05-31 BGH3008 - May 31, 15:25 UTCMay 31, 17:45 UTC2h 20m
2026-05-31 BGH3007 - May 31, 10:05 UTCMay 31, 11:50 UTC1h 45m
2026-05-31 BGH3024 - May 31, 08:25 UTCMay 31, 08:50 UTC25m
2026-05-30 BVL6220 - May 30, 15:10 UTCMay 30, 15:55 UTC45m
2026-05-30 BVL6219 - May 30, 12:55 UTCMay 30, 14:00 UTC1h 5m
2026-05-30 BGH3028 - May 30, 07:05 UTCMay 30, 08:00 UTC55m
2026-05-30 BGH3027 - May 30, 05:00 UTCMay 30, 06:00 UTC1h 0m
2026-05-29 BGH2504 BRU → BOJ May 29, 10:30 UTCMay 29, 10:55 UTC25m
2026-05-29 BGH2504 BRU → BOJ May 29, 07:20 UTCMay 29, 09:50 UTC2h 30m
2026-05-29 BGH2503 BOJ → AMS May 29, 03:00 UTCMay 29, 05:55 UTC2h 55m
2026-05-29 BGH2503 BOJ → AMS May 29, 01:40 UTCMay 29, 02:15 UTC35m
2026-05-28 BGH3024 - May 28, 12:35 UTCMay 28, 13:55 UTC1h 20m
2026-05-28 BGH3021 - May 28, 10:10 UTCMay 28, 11:20 UTC1h 10m
2026-05-28 BGH3022 - May 28, 07:10 UTCMay 28, 08:20 UTC1h 10m
2026-05-28 BGH3023 - May 28, 04:15 UTCMay 28, 05:30 UTC1h 15m
2026-05-25 LZB438 FRA → SOF May 25, 11:30 UTCMay 25, 13:30 UTC2h 0m
2026-05-25 LZB437 SOF → FRA May 25, 07:45 UTCMay 25, 09:45 UTC2h 0m
2026-05-24 BGH3008 - May 24, 19:15 UTCMay 24, 21:35 UTC2h 20m
2026-05-24 BGH3007 - May 24, 15:15 UTCMay 24, 17:30 UTC2h 15m
2026-05-24 BGH3024 - May 24, 12:20 UTCMay 24, 13:45 UTC1h 25m
2026-05-24 BGH3025 - May 24, 09:30 UTCMay 24, 10:20 UTC50m
2026-05-24 BGH3026 - May 24, 06:40 UTCMay 24, 07:50 UTC1h 10m
2026-05-24 BGH3023 - May 24, 04:10 UTCMay 24, 05:35 UTC1h 25m
2026-05-23 BGH3004 - May 23, 08:25 UTCMay 23, 14:15 UTC5h 50m
2026-05-23 BGH3027 - May 23, 05:15 UTCMay 23, 06:15 UTC1h 0m
2026-05-22 BGH2504 BRU → BOJ May 22, 10:45 UTCMay 22, 11:00 UTC15m
2026-05-22 BGH2504 BRU → BOJ May 22, 07:15 UTCMay 22, 09:55 UTC2h 40m
2026-05-22 BGH2503 BOJ → AMS May 22, 03:15 UTCMay 22, 05:35 UTC2h 20m
2026-05-21 BGH3024 - May 21, 12:15 UTCMay 21, 13:30 UTC1h 15m
2026-05-21 BGH3021 - May 21, 09:40 UTCMay 21, 10:40 UTC1h 0m
2026-05-21 BGH3022 - May 21, 06:40 UTCMay 21, 07:45 UTC1h 5m
2026-05-21 BGH3023 - May 21, 04:10 UTCMay 21, 05:40 UTC1h 30m
2026-05-20 LZB450 FCO → SOF May 20, 10:35 UTCMay 20, 11:50 UTC1h 15m
2026-05-20 LZB449 SOF → FCO May 20, 07:30 UTCMay 20, 09:05 UTC1h 35m
2026-05-19 LZB302 PRG → SOF May 19, 10:10 UTCMay 19, 11:35 UTC1h 25m
2026-05-19 LZB301 SOF → PRG May 19, 07:20 UTCMay 19, 08:40 UTC1h 20m
2026-05-18 LZB438 FRA → SOF May 18, 12:00 UTCMay 18, 13:35 UTC1h 35m
2026-05-18 LZB437 SOF → FRA May 18, 08:20 UTCMay 18, 10:10 UTC1h 50m
2026-05-17 BGH3008 - May 17, 09:55 UTCMay 17, 16:45 UTC6h 50m
2026-05-17 BGH3024 - May 17, 06:55 UTCMay 17, 08:10 UTC1h 15m
2026-05-17 BGH3023 - May 17, 04:25 UTCMay 17, 05:35 UTC1h 10m
2026-05-16 BGH3005 - May 16, 12:45 UTCMay 16, 19:35 UTC6h 50m
2026-05-16 BGH3004 - May 16, 04:25 UTCMay 16, 11:16 UTC6h 51m
2026-05-15 LZB7710 NBE → SOF May 15, 07:50 UTCMay 15, 09:05 UTC1h 15m
2026-05-15 LZB7709 SOF → NBE May 15, 04:35 UTCMay 15, 06:20 UTC1h 45m
2026-05-14 BGH3024 - May 14, 06:50 UTCMay 14, 08:00 UTC1h 10m
2026-05-14 BGH3023 - May 14, 04:30 UTCMay 14, 05:45 UTC1h 15m
2026-05-13 LZB8523 SOF → HRG May 13, 03:20 UTCMay 13, 09:40 UTC6h 20m

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

Mode-S 451E90 frequently asked

What is Mode-S code 451E90?
451E90 is an ICAO 24-bit transponder address. Allocated to Bulgaria. Assigned to LZ-FBE.
Where is Mode-S 451E90 registered?
Mode-S code 451E90 is allocated to Bulgaria (BG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 451E90 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 451E90, octal 21217220, decimal 4,529,808.
What flights does 451E90 operate?
Mode-S 451E90 has broadcast 20 distinct callsigns, including BGH3024, BGH3023, BGH3008, BGH3005, BGH3003.