sensors Mode-S transponder

40717B

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-JZBN · BOEING 737-800

Hex
40717B
Octal
20070573
Decimal
4,223,355
Country
GB
Tail
G-JZBN
Type
B738
Broadcasting now · callsign EXS73PU · 35,000 ft
Flights observed
270
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 22:45 UTC

Current position

40717B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 40717B 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
EXS92EL Jet2.com 5 2026-07-19
EXS91KB Jet2.com 5 2026-05-05
EXS71CB - 5 2026-07-15
EXS5EZ - 5 2026-07-19
EXS5BA - 5 2026-07-12
EXS2KR Jet2.com 5 2026-07-12
EXS24NX - 5 2026-07-15
EXS82P - 4 2026-06-27
EXS6AH - 4 2026-07-10
EXS1RG - 4 2026-07-10
EXS124 - 4 2026-06-27
EXS93H - 3 2026-07-14
EXS8ZQ - 3 2026-07-18
EXS60VL - 3 2026-07-18
EXS5AQ Jet2.com 3 2026-07-12
EXS57HY - 3 2026-04-13
EXS56FC Jet2.com 3 2026-04-17
EXS48DQ - 3 2026-04-17
EXS43CE - 3 2026-07-21
EXS3SA - 3 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EXS42RW TFS → LPL Jul 26, 19:15 UTCJul 26, 22:45 UTC3h 30m
2026-07-26 EXS48F EDI → MLA Jul 26, 13:40 UTCJul 26, 17:25 UTC3h 45m
2026-07-26 EXS16JU FUE → LTN Jul 26, 09:50 UTCJul 26, 12:35 UTC2h 45m
2026-07-26 EXS64QW LTN → FUE Jul 26, 06:00 UTCJul 26, 08:15 UTC2h 16m
2026-07-25 EXS72C TFS → LPL Jul 25, 20:15 UTCJul 26, 00:20 UTC4h 5m
2026-07-25 EXS823K LPL → TFS Jul 25, 14:55 UTCJul 25, 18:45 UTC3h 50m
2026-07-25 EXS43KO AYT → LTN Jul 25, 11:10 UTCJul 25, 13:40 UTC2h 30m
2026-07-25 EXS67T LTN → AYT Jul 25, 06:35 UTCJul 25, 09:10 UTC2h 35m
2026-07-25 - - Jul 25, 00:40 UTCJul 25, 00:50 UTC10m
2026-07-24 EXS53G FAO → LTN Jul 24, 21:05 UTCJul 25, 00:10 UTC3h 5m
2026-07-24 EXS49A EMA → LBA Jul 24, 16:55 UTCJul 24, 19:30 UTC2h 35m
2026-07-24 EXS24JS FCO → EDI Jul 24, 11:30 UTCJul 24, 15:45 UTC4h 15m
2026-07-24 EXS579J EDI → FCO Jul 24, 05:55 UTCJul 24, 09:45 UTC3h 50m
2026-07-23 EXS3201 LPL → LPL Jul 23, 14:45 UTCJul 23, 23:35 UTC8h 50m
2026-07-23 EXS152B TFS → LTN Jul 23, 11:05 UTCJul 23, 13:30 UTC2h 25m
2026-07-23 EXS32DW - Jul 23, 07:25 UTCJul 23, 09:35 UTC2h 10m
2026-07-23 EXS045A LBA → LPL Jul 23, 06:05 UTCJul 23, 06:25 UTC20m
2026-07-22 EXS2WM - Jul 22, 22:00 UTCJul 23, 01:55 UTC3h 55m
2026-07-22 EXS13RT LBA → PMI Jul 22, 16:15 UTCJul 22, 20:20 UTC4h 5m
2026-07-22 EXS047A LPL → LBA Jul 22, 14:00 UTCJul 22, 14:20 UTC20m
2026-07-21 EXS347Q PMI → LTN Jul 21, 20:55 UTCJul 22, 00:25 UTC3h 30m
2026-07-21 EXS863R - Jul 21, 15:05 UTCJul 21, 18:55 UTC3h 50m
2026-07-21 EXS51MZ - Jul 21, 11:10 UTCJul 21, 13:50 UTC2h 40m
2026-07-21 EXS43CE - Jul 21, 07:00 UTCJul 21, 09:55 UTC2h 55m
2026-07-20 EXS584N - Jul 20, 20:45 UTCJul 21, 00:25 UTC3h 39m
2026-07-20 EXS7JE GLA → RAK Jul 20, 16:00 UTCJul 20, 19:25 UTC3h 25m
2026-07-20 EXS90YX AGP → GLA Jul 20, 10:00 UTCJul 20, 13:45 UTC3h 45m
2026-07-20 EXS81FR GLA → MLA Jul 20, 05:35 UTCJul 20, 08:55 UTC3h 20m
2026-07-19 EXS3SA GLA → GLA Jul 19, 15:15 UTCJul 20, 00:35 UTC9h 20m
2026-07-19 EXS5EZ - Jul 19, 11:00 UTCJul 19, 13:50 UTC2h 50m
2026-07-19 EXS92EL MAN → IBZ Jul 19, 06:30 UTCJul 19, 09:15 UTC2h 45m
2026-07-18 EXS11MG PFO → GLA Jul 18, 21:40 UTCJul 19, 02:35 UTC4h 55m
2026-07-18 EXS55C - Jul 18, 15:30 UTCJul 18, 20:00 UTC4h 30m
2026-07-18 EXS8ZQ IBZ → GLA Jul 18, 11:10 UTCJul 18, 13:55 UTC2h 45m
2026-07-18 EXS60VL GLA → IBZ Jul 18, 06:20 UTCJul 18, 09:05 UTC2h 45m
2026-07-17 EXS36JU IBZ → GLA Jul 17, 18:44 UTCJul 17, 21:20 UTC2h 35m
2026-07-17 EXS3725 GLA → IBZ Jul 17, 14:50 UTCJul 17, 17:35 UTC2h 45m
2026-07-17 EXS65KT - Jul 17, 10:30 UTCJul 17, 13:20 UTC2h 50m
2026-07-17 EXS43CE - Jul 17, 06:05 UTCJul 17, 09:15 UTC3h 10m
2026-07-16 EXS623N - Jul 16, 21:15 UTCJul 17, 01:29 UTC4h 15m
2026-07-16 EXS42VJ - Jul 16, 15:49 UTCJul 16, 19:50 UTC4h 0m
2026-07-16 EXS5EZ - Jul 16, 11:25 UTCJul 16, 14:15 UTC2h 50m
2026-07-16 EXS92EL GLA → ALC Jul 16, 06:40 UTCJul 16, 09:35 UTC2h 55m
2026-07-15 EXS11MG - Jul 15, 20:30 UTCJul 16, 01:30 UTC5h 0m
2026-07-15 EXS55C - Jul 15, 14:45 UTCJul 15, 19:10 UTC4h 25m
2026-07-15 EXS24NX FAO → GLA Jul 15, 10:00 UTCJul 15, 12:45 UTC2h 45m
2026-07-15 EXS71CB GLA → FAO Jul 15, 05:50 UTCJul 15, 08:50 UTC3h 0m
2026-07-14 EXS5NG - Jul 14, 17:55 UTCJul 14, 23:20 UTC5h 24m
2026-07-14 EXS3SA - Jul 14, 14:00 UTCJul 14, 17:20 UTC3h 20m
2026-07-14 EXS93H - Jul 14, 10:00 UTCJul 14, 12:35 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 G-JZBN page for operator, model, and routing details .

Mode-S 40717B frequently asked

What is Mode-S code 40717B?
40717B is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-JZBN.
Where is Mode-S 40717B registered?
Mode-S code 40717B 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 40717B broadcasting right now?
Yes. Mode-S 40717B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40717B, octal 20070573, decimal 4,223,355.
What flights does 40717B operate?
Mode-S 40717B has broadcast 20 distinct callsigns, including EXS92EL, EXS91KB, EXS71CB, EXS5EZ, EXS5BA.