sensors Mode-S transponder

407E46

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-SUNC · AIRBUS A-321neo

Hex
407E46
Octal
20077106
Decimal
4,226,630
Country
GB
Tail
G-SUNC
Type
A21N
No current signal · last broadcast 12h ago
Flights observed
8
Distinct callsigns
5
Country
GB
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 407E46.

Country allocation

The ICAO 24-bit address 407E46 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 5 distinct

Callsign Airline Flights Last seen
EXS79NX - 2 2026-04-13
EXS6XD Jet2.com 2 2026-04-12
EXS5RB - 2 2026-04-14
EXS36ND - 1 2026-04-13
EXS33RY - 1 2026-04-12

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 EXS5RB - Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-14 EXS5RB - Apr 14, 08:50 UTCApr 14, 09:05 UTC15m
2026-04-13 EXS36ND - Apr 13, 12:30 UTCApr 13, 15:10 UTC2h 40m
2026-04-13 EXS79NX - Apr 13, 08:20 UTCApr 13, 10:35 UTC2h 15m
2026-04-13 EXS79NX - Apr 13, 07:50 UTCApr 13, 08:15 UTC25m
2026-04-12 EXS6XD RHO → LBA Apr 12, 23:55 UTCApr 13, 00:20 UTC25m
2026-04-12 EXS6XD RHO → LBA Apr 12, 20:00 UTCApr 12, 20:15 UTC15m
2026-04-12 EXS33RY - Apr 12, 17:15 UTCApr 12, 18:25 UTC1h 10m

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 G-SUNC page for operator, model, and routing details .

Mode-S 407E46 frequently asked

What is Mode-S code 407E46?
407E46 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-SUNC.
Where is Mode-S 407E46 registered?
Mode-S code 407E46 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 407E46 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407E46, octal 20077106, decimal 4,226,630.
What flights does 407E46 operate?
Mode-S 407E46 has broadcast 5 distinct callsigns, including EXS79NX, EXS6XD, EXS5RB, EXS36ND, EXS33RY.