sensors Mode-S transponder

40072B

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-GDFN · BOEING 737-300

Hex
40072B
Octal
20003453
Decimal
4,196,139
Country
GB
Tail
G-GDFN
Type
B733
No current signal · last broadcast 4h ago
Flights observed
164
Distinct callsigns
20
Country
GB
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 40072B.

Country allocation

The ICAO 24-bit address 40072B 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
EXS93CE Jet2.com 9 2026-05-26
EXS7DB Jet2.com 9 2026-05-26
EXS7RH Jet2.com 6 2026-05-25
EXS26KP Jet2.com 6 2026-05-25
EXS201 Jet2.com 5 2026-05-27
EXS1W Jet2.com 5 2026-05-27
EXS9KT Jet2.com 4 2026-05-26
EXS9FE Jet2.com 4 2026-05-23
EXS86YT Jet2.com 4 2026-05-28
EXS6H Jet2.com 4 2026-05-28
EXS38YB Jet2.com 4 2026-05-23
EXS27VY Jet2.com 4 2026-05-26
EXS24L Jet2.com 4 2026-05-28
EXS85RL Jet2.com 3 2026-04-24
EXS81JC Jet2.com 3 2026-05-23
EXS7YA Jet2.com 3 2026-05-17
EXS7A Jet2.com 3 2026-05-21
EXS6YR Jet2.com 3 2026-05-22
EXS61CU Jet2.com 3 2026-05-28
EXS4ZA Jet2.com 3 2026-04-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 EXS17SE FAO → LBA May 29, 18:40 UTCMay 29, 21:25 UTC2h 45m
2026-05-29 EXS247 LBA → FAO May 29, 14:50 UTCMay 29, 17:40 UTC2h 50m
2026-05-29 EXS5WH PFO → LBA May 29, 11:05 UTCMay 29, 13:40 UTC2h 35m
2026-05-29 EXS91FR LBA → HER May 29, 07:10 UTCMay 29, 09:35 UTC2h 25m
2026-05-28 EXS3WY ADB → LBA May 28, 22:00 UTCMay 29, 00:20 UTC2h 20m
2026-05-28 EXS1NC LBA → ADB May 28, 18:45 UTCMay 28, 21:05 UTC2h 20m
2026-05-28 EXS61CU ALC → LBA May 28, 16:30 UTCMay 28, 17:40 UTC1h 10m
2026-05-28 EXS86YT JTR → LBA May 28, 14:20 UTCMay 28, 15:20 UTC1h 0m
2026-05-28 EXS24L SKG → LBA May 28, 10:55 UTCMay 28, 13:20 UTC2h 25m
2026-05-28 EXS6H AGP → EMA May 28, 07:05 UTCMay 28, 09:20 UTC2h 15m
2026-05-27 EXS26W HER → NCL May 27, 18:05 UTCMay 27, 20:50 UTC2h 45m
2026-05-27 EXS93WN HER → NCL May 27, 14:15 UTCMay 27, 17:05 UTC2h 50m
2026-05-27 EXS1W PRG → LBA May 27, 10:15 UTCMay 27, 13:00 UTC2h 45m
2026-05-27 EXS201 LBA → AGP May 27, 06:09 UTCMay 27, 09:00 UTC2h 50m
2026-05-26 EXS27VY LEI → LBA May 26, 19:10 UTCMay 26, 21:44 UTC2h 35m
2026-05-26 EXS9KT ALC → LBA May 26, 15:00 UTCMay 26, 17:50 UTC2h 50m
2026-05-26 EXS7DB NCL → HER May 26, 10:34 UTCMay 26, 13:29 UTC2h 55m
2026-05-26 EXS93CE REU → NCL May 26, 06:49 UTCMay 26, 09:25 UTC2h 35m
2026-05-25 EXS1BN LBA → CDG May 25, 18:40 UTCMay 25, 20:50 UTC2h 9m
2026-05-25 EXS39ZU LBA → REU May 25, 15:35 UTCMay 25, 17:45 UTC2h 10m
2026-05-25 EXS26KP FAO → LBA May 25, 11:55 UTCMay 25, 14:30 UTC2h 35m
2026-05-25 EXS7RH PMI → LBA May 25, 07:25 UTCMay 25, 10:15 UTC2h 50m
2026-05-24 EXS49P FUE → LBA May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-24 EXS31YT LBA → FUE May 24, 18:20 UTCMay 24, 20:40 UTC2h 20m
2026-05-24 EXS81W IBZ → LBA May 24, 15:30 UTCMay 24, 17:15 UTC1h 45m
2026-05-24 EXS7YG LBA → PRG May 24, 11:50 UTCMay 24, 13:35 UTC1h 45m
2026-05-24 EXS51ER NCL → PMI May 24, 08:30 UTCMay 24, 10:25 UTC1h 55m
2026-05-24 EXS4UW NCL → PMI May 24, 05:10 UTCMay 24, 07:10 UTC2h 0m
2026-05-23 EXS38YB ALC → BFS May 23, 15:45 UTCMay 23, 17:50 UTC2h 5m
2026-05-23 EXS9FE CDG → LBA May 23, 11:55 UTCMay 23, 14:00 UTC2h 5m
2026-05-23 EXS13CS KRK → BHX May 23, 08:25 UTCMay 23, 10:35 UTC2h 10m
2026-05-23 EXS81JC NCL → LPA May 23, 05:20 UTCMay 23, 07:25 UTC2h 5m
2026-05-22 EXS6YR EFL → LBA May 22, 16:15 UTCMay 22, 18:45 UTC2h 30m
2026-05-22 EXS38JD LBA → FAO May 22, 12:40 UTCMay 22, 14:45 UTC2h 5m
2026-05-22 EXS38YB ALC → BFS May 22, 09:20 UTCMay 22, 11:15 UTC1h 55m
2026-05-22 EXS9FE CDG → LBA May 22, 05:45 UTCMay 22, 07:50 UTC2h 5m
2026-05-21 EXS27VY LEI → LBA May 21, 19:30 UTCMay 21, 22:00 UTC2h 30m
2026-05-21 EXS9KT ALC → LBA May 21, 15:25 UTCMay 21, 18:05 UTC2h 40m
2026-05-21 EXS7A PMI → LBA May 21, 11:15 UTCMay 21, 13:45 UTC2h 30m
2026-05-21 EXS1NM LBA → CHQ May 21, 07:15 UTCMay 21, 09:45 UTC2h 30m
2026-05-20 EXS246 SPU → LBA May 20, 10:55 UTCMay 20, 13:30 UTC2h 35m
2026-05-20 EXS94NG LBA → PMI May 20, 07:05 UTCMay 20, 09:25 UTC2h 20m
2026-05-19 EXS17SE FAO → LBA May 19, 18:50 UTCMay 19, 21:30 UTC2h 40m
2026-05-19 EXS247 LBA → FAO May 19, 15:00 UTCMay 19, 17:50 UTC2h 50m
2026-05-19 EXS7DB NCL → HER May 19, 10:20 UTCMay 19, 13:25 UTC3h 5m
2026-05-19 EXS93CE REU → NCL May 19, 06:45 UTCMay 19, 09:20 UTC2h 35m
2026-05-18 EXS6YR EFL → LBA May 18, 15:40 UTCMay 18, 17:55 UTC2h 15m
2026-05-18 EXS38JD LBA → FAO May 18, 12:20 UTCMay 18, 14:10 UTC1h 50m
2026-05-18 EXS38YB ALC → BFS May 18, 08:50 UTCMay 18, 11:10 UTC2h 20m
2026-05-18 EXS9FE CDG → LBA May 18, 05:10 UTCMay 18, 06:55 UTC1h 45m

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

Mode-S 40072B frequently asked

What is Mode-S code 40072B?
40072B is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-GDFN.
Where is Mode-S 40072B registered?
Mode-S code 40072B 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 40072B broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40072B, octal 20003453, decimal 4,196,139.
What flights does 40072B operate?
Mode-S 40072B has broadcast 20 distinct callsigns, including EXS93CE, EXS7DB, EXS7RH, EXS26KP, EXS201.