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sensors Mode-S transponder

407E31

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-CMJJ · ATR-72-600

Hex
407E31
Octal
20077061
Decimal
4,226,609
Country
GB
Tail
G-CMJJ
Type
AT76
No current signal · last broadcast Jul 26, 19:35 UTC
Flights observed
816
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 19:35 UTC

Last known position

Most recent position reported by Mode-S 407E31.

Country allocation

The ICAO 24-bit address 407E31 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
EAG43W - 67 2026-07-19
EAG36H - 65 2026-07-19
EAG7LB - 61 2026-07-23
EAG71B - 60 2026-07-23
EAG14N - 51 2026-07-24
EAG48B - 50 2026-07-24
EAG15S - 50 2026-07-24
EAG49BG - 36 2026-06-21
EAG6YH - 16 2026-07-23
EAG53U - 15 2026-07-20
EAG7FT - 14 2026-07-23
EAG58N - 14 2026-07-26
EAG56R - 14 2026-07-20
EAG52D - 14 2026-07-20
EAG49B - 14 2026-07-24
EAG35E - 14 2026-07-26
EAG46N - 13 2026-07-13
EAG2CB Emerald Airlines (UK) 13 2026-07-25
EAG23E - 13 2026-07-20
EAG47S - 12 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EAG35E - Jul 26, 19:00 UTCJul 26, 19:35 UTC35m
2026-07-26 EAG58N - Jul 26, 17:35 UTCJul 26, 18:20 UTC45m
2026-07-26 EAG57R - Jul 26, 16:05 UTCJul 26, 16:40 UTC35m
2026-07-26 EAG56B - Jul 26, 14:25 UTCJul 26, 15:05 UTC40m
2026-07-26 EAG5DB - Jul 26, 11:35 UTCJul 26, 13:05 UTC1h 30m
2026-07-26 EAG4SU - Jul 26, 09:40 UTCJul 26, 10:45 UTC1h 5m
2026-07-26 EAG41L - Jul 26, 07:35 UTCJul 26, 08:45 UTC1h 10m
2026-07-26 EAG4BX - Jul 26, 05:50 UTCJul 26, 06:40 UTC51m
2026-07-25 EAG19E - Jul 25, 19:30 UTCJul 25, 20:20 UTC50m
2026-07-25 EAG18C - Jul 25, 17:25 UTCJul 25, 18:15 UTC50m
2026-07-25 EAG77L - Jul 25, 15:40 UTCJul 25, 16:35 UTC55m
2026-07-25 EAG76L - Jul 25, 14:10 UTCJul 25, 15:00 UTC50m
2026-07-25 EAG21C CWL → BHD Jul 25, 12:00 UTCJul 25, 13:10 UTC1h 10m
2026-07-25 EAG2CB BHD → CWL Jul 25, 10:05 UTCJul 25, 11:05 UTC1h 0m
2026-07-25 EAI11H MAN → BHD Jul 25, 08:15 UTCJul 25, 09:10 UTC55m
2026-07-25 EAG1MR - Jul 25, 06:20 UTCJul 25, 07:05 UTC45m
2026-07-24 EAG49B - Jul 24, 18:50 UTCJul 24, 19:45 UTC55m
2026-07-24 EAG48B - Jul 24, 17:00 UTCJul 24, 17:55 UTC55m
2026-07-24 EAG15S - Jul 24, 15:25 UTCJul 24, 16:10 UTC45m
2026-07-24 EAG14N - Jul 24, 13:30 UTCJul 24, 14:15 UTC45m
2026-07-24 EAG21C CWL → BHD Jul 24, 11:35 UTCJul 24, 12:45 UTC1h 10m
2026-07-24 EAG2CB BHD → CWL Jul 24, 09:40 UTCJul 24, 10:45 UTC1h 5m
2026-07-24 EAG11H - Jul 24, 08:10 UTCJul 24, 08:55 UTC45m
2026-07-24 EAG1MR - Jul 24, 06:10 UTCJul 24, 06:55 UTC45m
2026-07-23 EAG19E - Jul 23, 19:15 UTCJul 23, 20:00 UTC45m
2026-07-23 EAG18C - Jul 23, 17:40 UTCJul 23, 18:30 UTC50m
2026-07-23 EAG7FT - Jul 23, 15:25 UTCJul 23, 16:50 UTC1h 25m
2026-07-23 EAG6YH - Jul 23, 13:30 UTCJul 23, 14:45 UTC1h 15m
2026-07-23 EAG21C CWL → BHD Jul 23, 11:30 UTCJul 23, 12:35 UTC1h 5m
2026-07-23 EAG2CB BHD → CWL Jul 23, 09:40 UTCJul 23, 10:45 UTC1h 5m
2026-07-23 EAG71B - Jul 23, 07:50 UTCJul 23, 08:50 UTC1h 0m
2026-07-23 EAG7LB - Jul 23, 06:05 UTCJul 23, 06:55 UTC50m
2026-07-22 EAG49B - Jul 22, 18:45 UTCJul 22, 19:40 UTC55m
2026-07-22 EAG48B - Jul 22, 16:50 UTCJul 22, 17:45 UTC55m
2026-07-22 EAG15S - Jul 22, 15:30 UTCJul 22, 16:15 UTC45m
2026-07-22 EAG14N - Jul 22, 13:25 UTCJul 22, 14:10 UTC45m
2026-07-22 EAG71P - Jul 22, 12:10 UTCJul 22, 12:35 UTC25m
2026-07-20 EAG70P - Jul 20, 18:10 UTCJul 20, 18:35 UTC25m
2026-07-20 EAG45F - Jul 20, 16:35 UTCJul 20, 17:30 UTC55m
2026-07-20 EAG44H - Jul 20, 14:55 UTCJul 20, 15:55 UTC1h 0m
2026-07-20 EAG53U - Jul 20, 13:25 UTCJul 20, 14:05 UTC40m
2026-07-20 EAG52D - Jul 20, 11:30 UTCJul 20, 12:10 UTC40m
2026-07-20 EAG23E - Jul 20, 10:15 UTCJul 20, 10:50 UTC35m
2026-07-20 EAG56R - Jul 20, 09:00 UTCJul 20, 09:35 UTC35m
2026-07-19 EAG49B - Jul 19, 18:50 UTCJul 19, 19:45 UTC55m
2026-07-19 EAG48B - Jul 19, 16:55 UTCJul 19, 17:50 UTC55m
2026-07-19 EAG15S - Jul 19, 15:20 UTCJul 19, 16:05 UTC45m
2026-07-19 EAG14N - Jul 19, 13:30 UTCJul 19, 14:15 UTC45m
2026-07-19 EAG43W - Jul 19, 11:05 UTCJul 19, 12:00 UTC55m
2026-07-19 EAG36H - Jul 19, 09:15 UTCJul 19, 10:10 UTC55m

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

Mode-S 407E31 frequently asked

What is Mode-S code 407E31?
407E31 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-CMJJ.
Where is Mode-S 407E31 registered?
Mode-S code 407E31 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 407E31 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407E31, octal 20077061, decimal 4,226,609.
What flights does 407E31 operate?
Mode-S 407E31 has broadcast 20 distinct callsigns, including EAG43W, EAG36H, EAG7LB, EAG71B, EAG14N.