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sensors Mode-S transponder

424381

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to VP-BRU · EMBRAER ERJ-190-100

Hex
424381
Octal
20441601
Decimal
4,342,657
Country
GB
Tail
VP-BRU
Type
E190
No current signal · last broadcast Jul 26, 16:00 UTC
Flights observed
340
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 16:00 UTC

Last known position

Most recent position reported by Mode-S 424381.

Country allocation

The ICAO 24-bit address 424381 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 20 distinct

Callsign Airline Flights Last seen
AHY8047 Azerbaijan Airlines 16 2026-07-26
AHY8048 Azerbaijan Airlines 14 2026-07-26
AHY252 - 14 2026-07-13
AHY265 Azerbaijan Airlines 13 2026-07-24
AHY262 - 11 2026-07-14
AHY261 - 11 2026-07-13
AHY257 - 10 2026-07-13
AHY8234 - 9 2026-07-21
AHY264 - 9 2026-07-14
AHY255 - 9 2026-07-13
AHY254 - 9 2026-07-13
AHY253 - 9 2026-07-13
AHY8228 - 8 2026-07-22
AHY8223 - 8 2026-07-16
AHY258 Azerbaijan Airlines 8 2026-06-14
AHY8229 Azerbaijan Airlines 7 2026-07-24
AHY8227 - 7 2026-07-22
AHY256 - 7 2026-07-08
AHY251 - 7 2026-07-13
AHY8239 Azerbaijan Airlines 6 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AHY095 - Jul 26, 11:20 UTCJul 26, 16:00 UTC4h 40m
2026-07-26 AHY8048 TZX → GYD Jul 26, 07:55 UTCJul 26, 08:50 UTC55m
2026-07-26 AHY8047 GYD → TZX Jul 26, 05:30 UTCJul 26, 06:40 UTC1h 11m
2026-07-25 AHY8048 TZX → GYD Jul 25, 15:20 UTCJul 25, 16:10 UTC50m
2026-07-25 AHY8047 GYD → TZX Jul 25, 10:25 UTCJul 25, 14:25 UTC4h 0m
2026-07-25 AHY8230 TBS → GYD Jul 25, 05:40 UTCJul 25, 09:05 UTC3h 25m
2026-07-24 AHY8229 GYD → TBS Jul 24, 14:20 UTCJul 25, 04:35 UTC14h 15m
2026-07-24 AHY265 GYD → GYD Jul 24, 12:10 UTCJul 24, 12:35 UTC25m
2026-07-24 AHY8048 TZX → GYD Jul 24, 08:05 UTCJul 24, 09:00 UTC55m
2026-07-24 AHY8047 GYD → TZX Jul 24, 05:40 UTCJul 24, 06:55 UTC1h 15m
2026-07-22 AHY8228 - Jul 22, 13:05 UTCJul 22, 13:55 UTC50m
2026-07-22 AHY8227 - Jul 22, 11:25 UTCJul 22, 11:45 UTC20m
2026-07-21 AHY8234 TBS → BUS Jul 21, 13:10 UTCJul 22, 11:45 UTC22h 35m
2026-07-21 AHY8233 GYD → TBS Jul 21, 06:25 UTCJul 21, 11:55 UTC5h 30m
2026-07-21 AHY8239 GYD → TBS Jul 21, 04:40 UTCJul 21, 05:05 UTC25m
2026-07-20 AHY8228 - Jul 20, 13:05 UTCJul 20, 13:50 UTC45m
2026-07-20 AHY8048 - Jul 20, 07:55 UTCJul 20, 12:10 UTC4h 15m
2026-07-19 AHY8047 - Jul 19, 17:45 UTCJul 20, 06:55 UTC13h 10m
2026-07-19 AHY8234 - Jul 19, 12:40 UTCJul 19, 16:00 UTC3h 20m
2026-07-19 AHY8048 - Jul 19, 07:50 UTCJul 19, 11:30 UTC3h 40m
2026-07-18 AHY8047 - Jul 18, 16:05 UTCJul 19, 06:35 UTC14h 30m
2026-07-18 AHY285 - Jul 18, 14:10 UTCJul 18, 14:30 UTC20m
2026-07-18 AHY284 - Jul 18, 11:15 UTCJul 18, 11:30 UTC15m
2026-07-18 AHY8240 - Jul 18, 07:10 UTCJul 18, 07:45 UTC35m
2026-07-18 AHY8239 - Jul 18, 05:25 UTCJul 18, 05:55 UTC30m
2026-07-18 AHY2256 - Jul 18, 03:00 UTCJul 18, 03:20 UTC20m
2026-07-18 AHY2255 - Jul 18, 01:15 UTCJul 18, 01:39 UTC25m
2026-07-17 AHY8234 - Jul 17, 13:00 UTCJul 17, 13:29 UTC30m
2026-07-17 AHY8224 TBS → TBS Jul 17, 07:50 UTCJul 17, 11:55 UTC4h 5m
2026-07-16 AHY8228 BUS → TBS Jul 16, 13:15 UTCJul 17, 06:29 UTC17h 15m
2026-07-16 AHY8227 TBS → BUS Jul 16, 07:45 UTCJul 16, 12:05 UTC4h 20m
2026-07-16 AHY8223 - Jul 16, 06:15 UTCJul 16, 06:45 UTC30m
2026-07-15 AHY274 NAJ → GYD Jul 15, 15:05 UTCJul 15, 15:30 UTC25m
2026-07-15 AHY273 KVD → NAJ Jul 15, 13:05 UTCJul 15, 13:20 UTC15m
2026-07-15 AHY272 - Jul 15, 11:05 UTCJul 15, 11:20 UTC15m
2026-07-15 AHY271 - Jul 15, 09:05 UTCJul 15, 09:30 UTC25m
2026-07-15 AHY2156 - Jul 15, 00:15 UTCJul 15, 00:40 UTC25m
2026-07-14 AHY282 - Jul 14, 18:35 UTCJul 14, 22:25 UTC3h 50m
2026-07-14 AHY281 - Jul 14, 16:40 UTCJul 14, 17:05 UTC25m
2026-07-14 AHY266 - Jul 14, 14:15 UTCJul 14, 14:40 UTC25m
2026-07-14 AHY265 - Jul 14, 12:10 UTCJul 14, 12:35 UTC25m
2026-07-14 AHY264 - Jul 14, 09:15 UTCJul 14, 09:40 UTC25m
2026-07-14 AHY263 - Jul 14, 07:35 UTCJul 14, 08:00 UTC25m
2026-07-14 AHY262 - Jul 14, 04:50 UTCJul 14, 05:15 UTC25m
2026-07-13 AHY261 - Jul 13, 20:40 UTCJul 14, 03:30 UTC6h 50m
2026-07-13 AHY257 - Jul 13, 16:35 UTCJul 13, 19:20 UTC2h 45m
2026-07-13 AHY255 - Jul 13, 14:25 UTCJul 13, 14:50 UTC25m
2026-07-13 AHY254 - Jul 13, 10:00 UTCJul 13, 10:15 UTC15m
2026-07-13 AHY253 - Jul 13, 08:01 UTCJul 13, 08:25 UTC25m
2026-07-13 AHY252 - Jul 13, 05:31 UTCJul 13, 05:50 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 VP-BRU page for operator, model, and routing details .

Mode-S 424381 frequently asked

What is Mode-S code 424381?
424381 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to VP-BRU.
Where is Mode-S 424381 registered?
Mode-S code 424381 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 424381 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 424381, octal 20441601, decimal 4,342,657.
What flights does 424381 operate?
Mode-S 424381 has broadcast 20 distinct callsigns, including AHY8047, AHY8048, AHY252, AHY265, AHY262.