Apparatus

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sensors Mode-S transponder

424507

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to VQ-BLU · EMBRAER ERJ-170-100

Hex
424507
Octal
20442407
Decimal
4,343,047
Country
GB
Tail
VQ-BLU
Type
E170
No current signal · last broadcast 13h ago
Flights observed
76
Distinct callsigns
14
Country
GB
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 424507.

Country allocation

The ICAO 24-bit address 424507 falls within the block assigned to United Kingdom (GB) by ICAO Annex 10, Volume III. Every aircraft registered in United Kingdom 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 14 distinct

Callsign Airline Flights Last seen
BMA552 bmi 10 2026-05-28
BMA802 bmi 9 2026-05-27
BMA801 bmi 9 2026-05-27
BMA551 bmi 7 2026-05-28
BMA224 bmi 6 2026-05-28
BMA413 bmi 5 2026-05-14
BMA240 bmi 5 2026-05-29
BMA223 bmi 5 2026-05-28
BMA751 bmi 4 2026-05-06
BMA414 bmi 4 2026-05-14
BMA241 bmi 4 2026-05-29
BMA302 bmi 3 2026-05-05
BMA301 bmi 3 2026-05-05
BMA752 bmi 2 2026-05-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BMA241 EWR → BDA May 29, 16:35 UTCMay 29, 16:45 UTC10m
2026-05-29 BMA241 EWR → BDA May 29, 15:05 UTCMay 29, 15:30 UTC25m
2026-05-29 BMA240 BDA → EWR May 29, 12:50 UTCMay 29, 13:30 UTC40m
2026-05-29 BMA240 BDA → EWR May 29, 11:20 UTCMay 29, 11:35 UTC15m
2026-05-28 BMA224 HPN → BDA May 28, 23:40 UTCMay 28, 23:55 UTC15m
2026-05-28 BMA224 HPN → BDA May 28, 22:15 UTCMay 28, 22:45 UTC30m
2026-05-28 BMA223 BDA → HPN May 28, 20:20 UTCMay 28, 21:00 UTC40m
2026-05-28 BMA223 BDA → HPN May 28, 18:55 UTCMay 28, 19:00 UTC5m
2026-05-28 BMA552 BWI → BDA May 28, 17:15 UTCMay 28, 17:25 UTC10m
2026-05-28 BMA552 BWI → BDA May 28, 15:45 UTCMay 28, 16:15 UTC30m
2026-05-28 BMA551 BDA → BWI May 28, 11:55 UTCMay 28, 14:10 UTC2h 15m
2026-05-27 BMA802 YHZ → BDA May 27, 20:05 UTCMay 27, 20:20 UTC15m
2026-05-27 BMA802 YHZ → BDA May 27, 18:20 UTCMay 27, 18:45 UTC25m
2026-05-27 BMA801 BDA → YHZ May 27, 16:40 UTCMay 27, 17:00 UTC20m
2026-05-27 BMA801 BDA → YHZ May 27, 15:00 UTCMay 27, 15:05 UTC5m
2026-05-22 BMA552 BWI → BDA May 22, 17:05 UTCMay 22, 17:15 UTC10m
2026-05-22 BMA552 BWI → BDA May 22, 15:30 UTCMay 22, 16:05 UTC35m
2026-05-22 BMA551 BDA → BWI May 22, 12:00 UTCMay 22, 14:05 UTC2h 5m
2026-05-20 BMA802 YHZ → BDA May 20, 00:40 UTCMay 20, 00:50 UTC10m
2026-05-19 BMA802 YHZ → BDA May 19, 22:55 UTCMay 19, 23:10 UTC15m
2026-05-19 BMA801 BDA → YHZ May 19, 20:40 UTCMay 19, 21:05 UTC25m
2026-05-19 BMA801 BDA → YHZ May 19, 19:00 UTCMay 19, 19:10 UTC10m
2026-05-15 BMA552 BWI → BDA May 15, 17:00 UTCMay 15, 17:10 UTC10m
2026-05-15 BMA552 BWI → BDA May 15, 15:20 UTCMay 15, 15:55 UTC35m
2026-05-15 BMA551 BDA → BWI May 15, 13:15 UTCMay 15, 13:50 UTC35m
2026-05-15 BMA551 BDA → BWI May 15, 11:50 UTCMay 15, 12:00 UTC10m
2026-05-14 BMA414 YUL → BDA May 14, 15:45 UTCMay 14, 17:00 UTC1h 15m
2026-05-14 BMA413 BDA → YUL May 14, 12:40 UTCMay 14, 13:45 UTC1h 5m
2026-05-12 BMA802 YHZ → BDA May 12, 22:25 UTCMay 12, 23:05 UTC40m
2026-05-12 BMA801 BDA → YHZ May 12, 20:40 UTCMay 12, 21:15 UTC35m
2026-05-10 BMA224 HPN → BDA May 10, 22:09 UTCMay 10, 22:40 UTC30m
2026-05-10 BMA414 YUL → BDA May 10, 15:35 UTCMay 10, 21:14 UTC5h 40m
2026-05-10 BMA413 BDA → YUL May 10, 12:59 UTCMay 10, 14:09 UTC1h 10m
2026-05-08 BMA552 BWI → BDA May 8, 15:30 UTCMay 8, 16:05 UTC35m
2026-05-07 BMA551 BDA → BWI May 7, 22:15 UTCMay 8, 14:10 UTC15h 55m
2026-05-07 BMA223 BDA → HPN May 7, 20:25 UTCMay 7, 21:10 UTC45m
2026-05-07 BMA241 EWR → BDA May 7, 15:10 UTCMay 7, 15:45 UTC35m
2026-05-06 BMA240 BDA → EWR May 6, 23:15 UTCMay 7, 13:40 UTC14h 25m
2026-05-06 BMA751 BDA → MCO May 6, 21:05 UTCMay 6, 21:45 UTC40m
2026-05-05 BMA802 YHZ → BDA May 5, 22:30 UTCMay 5, 22:40 UTC10m
2026-05-05 BMA302 BOS → BDA May 5, 14:25 UTCMay 5, 20:55 UTC6h 30m
2026-05-05 BMA301 BDA → BOS May 5, 12:15 UTCMay 5, 12:55 UTC40m
2026-05-03 BMA414 YUL → BDA May 3, 15:30 UTCMay 3, 16:30 UTC1h 0m
2026-05-03 BMA413 BDA → YUL May 3, 13:05 UTCMay 3, 14:10 UTC1h 5m
2026-05-02 BMA752 MCO → BDA May 2, 21:30 UTCMay 2, 22:20 UTC50m
2026-05-02 BMA751 BDA → MCO May 2, 17:20 UTCMay 2, 18:05 UTC45m
2026-05-01 BMA552 BWI → BDA May 1, 17:00 UTCMay 1, 17:10 UTC10m
2026-05-01 BMA552 BWI → BDA May 1, 15:30 UTCMay 1, 16:05 UTC35m
2026-05-01 BMA551 BDA → BWI May 1, 11:40 UTCMay 1, 14:00 UTC2h 20m
2026-04-28 BMA802 YHZ → BDA Apr 28, 22:40 UTCApr 28, 23:00 UTC20m

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 VQ-BLU page for operator, model, and routing details .

Mode-S 424507 frequently asked

What is Mode-S code 424507?
424507 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to VQ-BLU.
Where is Mode-S 424507 registered?
Mode-S code 424507 is allocated to United Kingdom (GB). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 424507 broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 424507, octal 20442407, decimal 4,343,047.
What flights does 424507 operate?
Mode-S 424507 has broadcast 14 distinct callsigns, including BMA552, BMA802, BMA801, BMA551, BMA224.