sensors Mode-S transponder

424C98

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to M-ABTE · BOMBARDIER BD-100 Challenger 350

Hex
424C98
Octal
20446230
Decimal
4,344,984
Country
GB
Tail
M-ABTE
Type
CL35
Broadcasting now · callsign MABTE · 43,000 ft
Flights observed
7
Distinct callsigns
1
Country
GB
Last broadcast
18h ago

Current position

424C98 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 424C98 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 1 distinct

Callsign Airline Flights Last seen
MABTE - 7 2026-04-14

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 MABTE - Apr 14, 10:25 UTCApr 14, 11:05 UTC40m
2026-04-14 MABTE - Apr 14, 09:10 UTCApr 14, 09:15 UTC5m
2026-04-14 MABTE - Apr 14, 07:50 UTCApr 14, 09:05 UTC1h 15m
2026-04-14 MABTE - Apr 14, 05:55 UTCApr 14, 07:00 UTC1h 5m
2026-04-13 MABTE - Apr 13, 21:30 UTCApr 13, 22:20 UTC50m
2026-04-13 MABTE - Apr 13, 04:25 UTCApr 13, 05:15 UTC50m
2026-04-13 MABTE SVQ → DUB Apr 13, 00:50 UTCApr 13, 03:25 UTC2h 35m

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 M-ABTE page for operator, model, and routing details .

Mode-S 424C98 frequently asked

What is Mode-S code 424C98?
424C98 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to M-ABTE.
Where is Mode-S 424C98 registered?
Mode-S code 424C98 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 424C98 broadcasting right now?
Yes. Mode-S 424C98 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 424C98, octal 20446230, decimal 4,344,984.
What flights does 424C98 operate?
Mode-S 424C98 has broadcast 1 distinct callsign, including MABTE.