Apparatus

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sensors Mode-S transponder

424508

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
424508
Octal
20442410
Decimal
4,343,048
Country
GB
Tail
VQ-BLW
Type
E170
No current signal · last broadcast 6d ago
Flights observed
90
Distinct callsigns
14
Country
GB
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S 424508.

Country allocation

The ICAO 24-bit address 424508 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
BMA801 bmi 11 2026-05-25
BMA414 bmi 11 2026-05-24
BMA413 bmi 9 2026-05-24
BMA802 bmi 8 2026-05-26
BMA301 bmi 8 2026-05-19
BMA302 bmi 7 2026-05-19
BMA241 bmi 6 2026-05-25
BMA240 bmi 6 2026-05-25
BMA751 bmi 5 2026-05-26
BMA551 bmi 5 2026-05-18
BMA552 bmi 4 2026-05-18
BMA224 bmi 4 2026-05-19
BMA223 bmi 4 2026-05-19
BMA752 bmi 2 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-26 BMA752 MCO → BDA May 26, 20:09 UTCMay 26, 22:25 UTC2h 15m
2026-05-26 BMA751 BDA → MCO May 26, 17:04 UTCMay 26, 17:50 UTC45m
2026-05-26 BMA751 BDA → MCO May 26, 15:29 UTCMay 26, 15:45 UTC15m
2026-05-26 BMA802 YHZ → BDA May 26, 00:29 UTCMay 26, 00:39 UTC10m
2026-05-25 BMA802 YHZ → BDA May 25, 22:34 UTCMay 25, 23:00 UTC25m
2026-05-25 BMA801 BDA → YHZ May 25, 20:50 UTCMay 25, 21:04 UTC15m
2026-05-25 BMA801 BDA → YHZ May 25, 19:05 UTCMay 25, 19:15 UTC10m
2026-05-25 BMA241 EWR → BDA May 25, 16:45 UTCMay 25, 16:50 UTC5m
2026-05-25 BMA241 EWR → BDA May 25, 15:10 UTCMay 25, 15:40 UTC30m
2026-05-25 BMA240 BDA → EWR May 25, 12:35 UTCMay 25, 13:25 UTC50m
2026-05-25 BMA240 BDA → EWR May 25, 11:15 UTCMay 25, 11:30 UTC15m
2026-05-24 BMA414 YUL → BDA May 24, 18:00 UTCMay 24, 18:10 UTC10m
2026-05-24 BMA414 YUL → BDA May 24, 16:00 UTCMay 24, 17:00 UTC1h 0m
2026-05-24 BMA413 BDA → YUL May 24, 13:30 UTCMay 24, 14:45 UTC1h 15m
2026-05-23 BMA241 EWR → BDA May 23, 18:15 UTCMay 23, 18:25 UTC10m
2026-05-23 BMA241 EWR → BDA May 23, 16:45 UTCMay 23, 17:15 UTC30m
2026-05-23 BMA240 BDA → EWR May 23, 13:45 UTCMay 23, 14:25 UTC40m
2026-05-23 BMA240 BDA → EWR May 23, 12:25 UTCMay 23, 12:35 UTC10m
2026-05-19 BMA224 HPN → BDA May 19, 23:35 UTCMay 19, 23:45 UTC10m
2026-05-19 BMA224 HPN → BDA May 19, 22:00 UTCMay 19, 22:35 UTC35m
2026-05-19 BMA223 BDA → HPN May 19, 20:10 UTCMay 19, 20:45 UTC35m
2026-05-19 BMA223 BDA → HPN May 19, 18:55 UTCMay 19, 19:00 UTC5m
2026-05-19 BMA302 BOS → BDA May 19, 16:10 UTCMay 19, 16:20 UTC10m
2026-05-19 BMA302 BOS → BDA May 19, 14:40 UTCMay 19, 15:10 UTC30m
2026-05-19 BMA301 BDA → BOS May 19, 12:20 UTCMay 19, 13:00 UTC40m
2026-05-19 BMA301 BDA → BOS May 19, 11:10 UTCMay 19, 11:20 UTC10m
2026-05-18 BMA552 BWI → BDA May 18, 16:10 UTCMay 18, 16:20 UTC10m
2026-05-18 BMA552 BWI → BDA May 18, 14:30 UTCMay 18, 15:05 UTC35m
2026-05-18 BMA551 BDA → BWI May 18, 11:00 UTCMay 18, 13:00 UTC2h 0m
2026-05-17 BMA414 YUL → BDA May 17, 17:55 UTCMay 17, 18:05 UTC10m
2026-05-17 BMA414 YUL → BDA May 17, 16:01 UTCMay 17, 16:55 UTC55m
2026-05-17 BMA413 BDA → YUL May 17, 12:50 UTCMay 17, 14:05 UTC1h 15m
2026-05-17 BMA413 BDA → YUL May 17, 11:40 UTCMay 17, 11:50 UTC10m
2026-05-17 BMA802 YHZ → BDA May 17, 00:30 UTCMay 17, 00:40 UTC10m
2026-05-16 BMA802 YHZ → BDA May 16, 22:40 UTCMay 16, 23:00 UTC20m
2026-05-16 BMA801 BDA → YHZ May 16, 20:30 UTCMay 16, 21:15 UTC45m
2026-05-16 BMA801 BDA → YHZ May 16, 19:05 UTCMay 16, 19:20 UTC15m
2026-05-11 BMA552 BWI → BDA May 11, 15:05 UTCMay 11, 15:35 UTC30m
2026-05-11 BMA551 BDA → BWI May 11, 12:45 UTCMay 11, 13:40 UTC55m
2026-05-09 BMA802 YHZ → BDA May 9, 22:45 UTCMay 9, 23:00 UTC15m
2026-05-09 BMA801 BDA → YHZ May 9, 21:00 UTCMay 9, 21:25 UTC25m
2026-05-07 BMA414 YUL → BDA May 7, 15:25 UTCMay 7, 16:20 UTC55m
2026-05-07 BMA413 BDA → YUL May 7, 12:55 UTCMay 7, 14:05 UTC1h 10m
2026-05-04 BMA302 BOS → BDA May 4, 22:35 UTCMay 4, 23:05 UTC30m
2026-05-04 BMA301 BDA → BOS May 4, 15:05 UTCMay 4, 20:45 UTC5h 41m
2026-05-04 BMA551 BDA → BWI May 4, 12:45 UTCMay 4, 13:25 UTC40m
2026-05-03 BMA241 EWR → BDA May 3, 15:30 UTCMay 3, 16:05 UTC35m
2026-05-02 BMA240 BDA → EWR May 2, 22:35 UTCMay 3, 13:35 UTC14h 59m
2026-05-02 BMA801 BDA → YHZ May 2, 20:45 UTCMay 2, 21:05 UTC20m
2026-04-30 BMA414 YUL → BDA Apr 30, 15:30 UTCApr 30, 16:30 UTC1h 0m

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

Mode-S 424508 frequently asked

What is Mode-S code 424508?
424508 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to VQ-BLW.
Where is Mode-S 424508 registered?
Mode-S code 424508 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 424508 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 424508, octal 20442410, decimal 4,343,048.
What flights does 424508 operate?
Mode-S 424508 has broadcast 14 distinct callsigns, including BMA801, BMA414, BMA413, BMA802, BMA301.