sensors Mode-S transponder

424334

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
424334
Octal
20441464
Decimal
4,342,580
Country
GB
Tail
VP-BHH
Type
E190
Broadcasting now · callsign AHY253 · 30,000 ft
Flights observed
151
Distinct callsigns
20
Country
GB
Last broadcast
3h ago

Current position

424334 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 424334 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AHY252 NAJ → GYD May 30, 05:30 UTCMay 30, 05:55 UTC25m
2026-05-29 AHY8238 TBS → GYD May 29, 22:55 UTCMay 30, 03:55 UTC5h 0m
2026-05-29 AHY8226 TBS → GYD May 29, 18:35 UTCMay 29, 21:40 UTC3h 5m
2026-05-29 AHY8225 GYD → TBS May 29, 14:20 UTCMay 29, 17:20 UTC3h 0m
2026-05-29 AHY264 GYD → GYD May 29, 10:00 UTCMay 29, 12:55 UTC2h 55m
2026-05-29 AHY263 GYD → GYD May 29, 05:10 UTCMay 29, 08:30 UTC3h 20m
2026-05-28 AHY261 GYD → NAJ May 28, 19:40 UTCMay 29, 03:30 UTC7h 50m
2026-05-28 AHY295 - May 28, 15:05 UTCMay 28, 18:00 UTC2h 55m
2026-05-28 AHY2254 - May 28, 10:45 UTCMay 28, 13:35 UTC2h 50m
2026-05-28 AHY2253 - May 28, 08:40 UTCMay 28, 09:05 UTC25m
2026-05-28 AHY8230 TBS → GYD May 28, 05:45 UTCMay 28, 06:15 UTC30m
2026-05-28 AHY8229 GYD → TBS May 28, 04:10 UTCMay 28, 04:40 UTC30m
2026-05-27 AHY296 - May 27, 18:25 UTCMay 27, 18:45 UTC20m
2026-05-27 AHY286 - May 27, 14:00 UTCMay 27, 16:50 UTC2h 50m
2026-05-27 AHY264 GYD → GYD May 27, 09:25 UTCMay 27, 12:20 UTC2h 55m
2026-05-27 AHY262 NAJ → GYD May 27, 04:49 UTCMay 27, 07:55 UTC3h 5m
2026-05-26 AHY288 - May 26, 16:59 UTCMay 27, 03:14 UTC10h 15m
2026-05-26 AHY287 - May 26, 10:50 UTCMay 26, 15:24 UTC4h 35m
2026-05-26 AHY8230 TBS → GYD May 26, 05:49 UTCMay 26, 09:25 UTC3h 35m
2026-05-25 AHY8238 TBS → GYD May 25, 22:34 UTCMay 26, 04:24 UTC5h 50m
2026-05-25 AHY8237 GYD → TBS May 25, 18:05 UTCMay 25, 21:30 UTC3h 24m
2026-05-25 AHY8225 GYD → TBS May 25, 13:45 UTCMay 25, 16:55 UTC3h 10m
2026-05-25 AHY287 - May 25, 11:35 UTCMay 25, 11:55 UTC20m
2026-05-25 AHY8048 TZX → GYD May 25, 07:45 UTCMay 25, 08:45 UTC1h 0m
2026-05-24 AHY8047 GYD → TZX May 24, 23:00 UTCMay 25, 06:35 UTC7h 35m
2026-05-24 AHY8226 TBS → GYD May 24, 17:25 UTCMay 24, 21:05 UTC3h 40m
2026-05-24 AHY8225 GYD → TBS May 24, 09:35 UTCMay 24, 16:15 UTC6h 40m
2026-05-24 AHY263 GYD → GYD May 24, 05:15 UTCMay 24, 07:55 UTC2h 40m
2026-05-23 AHY261 GYD → NAJ May 23, 17:25 UTCMay 24, 03:35 UTC10h 11m
2026-05-23 AHY2255 - May 23, 10:50 UTCMay 23, 15:25 UTC4h 35m
2026-05-23 AHY2253 - May 23, 08:50 UTCMay 23, 09:15 UTC25m
2026-05-23 AHY2252 - May 23, 06:05 UTCMay 23, 06:25 UTC20m
2026-05-23 AHY2251 - May 23, 04:20 UTCMay 23, 04:40 UTC20m
2026-05-22 AHY294 - May 22, 12:40 UTCMay 22, 13:00 UTC20m
2026-05-22 AHY8230 TBS → GYD May 22, 08:10 UTCMay 22, 11:15 UTC3h 5m
2026-05-21 AHY8229 GYD → TBS May 21, 11:05 UTCMay 22, 06:35 UTC19h 30m
2026-05-21 AHY252 NAJ → GYD May 21, 05:20 UTCMay 21, 09:30 UTC4h 10m
2026-05-20 AHY251 GYD → NAJ May 20, 14:25 UTCMay 21, 03:50 UTC13h 25m
2026-05-20 AHY264 GYD → GYD May 20, 09:40 UTCMay 20, 12:25 UTC2h 45m
2026-05-20 AHY263 GYD → GYD May 20, 07:30 UTCMay 20, 07:55 UTC25m
2026-05-20 AHY262 NAJ → GYD May 20, 04:50 UTCMay 20, 05:15 UTC25m
2026-05-19 AHY266 GYD → GYD May 19, 17:50 UTCMay 20, 03:15 UTC9h 25m
2026-05-19 AHY254 GYD → GYD May 19, 10:00 UTCMay 19, 16:10 UTC6h 10m
2026-05-19 AHY252 NAJ → GYD May 19, 05:40 UTCMay 19, 08:40 UTC3h 0m
2026-05-18 AHY254 GYD → GYD May 18, 09:50 UTCMay 19, 03:55 UTC18h 4m
2026-05-18 AHY253 GYD → GYD May 18, 05:20 UTCMay 18, 08:25 UTC3h 5m
2026-05-18 AHY251 GYD → NAJ May 18, 03:25 UTCMay 18, 03:50 UTC25m
2026-05-17 AHY268 GYD → GYD May 17, 22:15 UTCMay 17, 22:40 UTC25m
2026-05-17 AHY267 GYD → GYD May 17, 14:01 UTCMay 17, 21:01 UTC7h 0m
2026-05-17 AHY265 GYD → GYD May 17, 09:35 UTCMay 17, 12:30 UTC2h 55m

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

Mode-S 424334 frequently asked

What is Mode-S code 424334?
424334 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to VP-BHH.
Where is Mode-S 424334 registered?
Mode-S code 424334 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 424334 broadcasting right now?
Yes. Mode-S 424334 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 424334, octal 20441464, decimal 4,342,580.
What flights does 424334 operate?
Mode-S 424334 has broadcast 20 distinct callsigns, including AHY263, AHY261, AHY264, AHY262, AHY252.