Apparatus

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sensors Mode-S transponder

40697B

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-EUYP · AIRBUS A-320

Hex
40697B
Octal
20064573
Decimal
4,221,307
Country
GB
Tail
G-EUYP
Type
A320
Broadcasting now · callsign BAW66K · 36,975 ft
Flights observed
175
Distinct callsigns
20
Country
GB
Last broadcast
16m ago

Current position

40697B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 40697B 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
BAW717 British Airways 4 2026-05-29
BAW716 British Airways 3 2026-05-29
BAW703 British Airways 3 2026-05-27
BAW702 British Airways 3 2026-05-27
BAW5RF British Airways 3 2026-05-22
BAW554R British Airways 3 2026-05-22
SHT5Q - 2 2026-04-16
SHT4J - 2 2026-04-16
BAW928 British Airways 2 2026-04-14
BAW7GV British Airways 2 2026-05-18
BAW731 British Airways 2 2026-05-18
BAW701 British Airways 2 2026-05-11
BAW700 British Airways 2 2026-05-11
BAW607M British Airways 2 2026-04-15
BAW606 British Airways 2 2026-04-15
BAW541A British Airways 2 2026-04-15
BAW381 British Airways 2 2026-04-16
BAW380 British Airways 2 2026-04-16
BAW379 British Airways 2 2026-05-08
BAW378 British Airways 2 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 BAW66K LHR → JMK May 30, 08:10 UTCMay 30, 08:45 UTC35m
2026-05-29 BAW309 CDG → LHR May 29, 18:50 UTCMay 29, 19:35 UTC45m
2026-05-29 BAW308 LHR → CDG May 29, 16:55 UTCMay 29, 17:35 UTC40m
2026-05-29 BAW717 ZRH → LHR May 29, 10:40 UTCMay 29, 14:25 UTC3h 45m
2026-05-29 BAW716 LHR → ZRH May 29, 05:35 UTCMay 29, 08:40 UTC3h 5m
2026-05-28 BAW539 FCO → LHR May 28, 18:45 UTCMay 28, 21:25 UTC2h 40m
2026-05-28 BAW538 LHR → FCO May 28, 15:20 UTCMay 28, 17:45 UTC2h 25m
2026-05-28 BAW423 AMS → LHR May 28, 10:55 UTCMay 28, 13:40 UTC2h 45m
2026-05-28 BAW422 LHR → VLC May 28, 07:05 UTCMay 28, 09:25 UTC2h 20m
2026-05-27 BAW703 VIE → LHR May 27, 16:50 UTCMay 27, 20:35 UTC3h 45m
2026-05-27 BAW702 LHR → VIE May 27, 11:55 UTCMay 27, 15:25 UTC3h 30m
2026-05-27 SHT5R - May 27, 09:20 UTCMay 27, 10:10 UTC50m
2026-05-27 SHT4H - May 27, 07:15 UTCMay 27, 08:05 UTC50m
2026-05-26 SHT19Q ABZ → LHR May 26, 20:45 UTCMay 26, 21:55 UTC1h 10m
2026-05-26 SHT18H LHR → ABZ May 26, 18:50 UTCMay 26, 20:00 UTC1h 10m
2026-05-26 BAW527 SPU → LHR May 26, 14:05 UTCMay 26, 16:15 UTC2h 10m
2026-05-26 BAW526 LHR → SPU May 26, 10:14 UTCMay 26, 12:24 UTC2h 10m
2026-05-26 BAW591 VCE → LHR May 26, 06:44 UTCMay 26, 08:19 UTC1h 35m
2026-05-25 BAW590 LHR → MXP May 25, 20:15 UTCMay 25, 21:45 UTC1h 30m
2026-05-25 BAW557H FCO → LHR May 25, 16:30 UTCMay 25, 18:30 UTC2h 0m
2026-05-25 BAW556Q LHR → FCO May 25, 12:50 UTCMay 25, 14:55 UTC2h 5m
2026-05-25 BAW807K BLL → LHR May 25, 09:40 UTCMay 25, 11:10 UTC1h 30m
2026-05-25 BAW86LG LHR → BLL May 25, 07:15 UTCMay 25, 08:30 UTC1h 15m
2026-05-24 BAW9270 LHR → LGW May 24, 09:05 UTCMay 24, 11:55 UTC2h 50m
2026-05-22 BAW378 LHR → TLS May 22, 18:50 UTCMay 22, 21:10 UTC2h 20m
2026-05-22 BAW5RF FCO → LHR May 22, 15:15 UTCMay 22, 17:25 UTC2h 10m
2026-05-22 BAW554R LHR → FCO May 22, 11:50 UTCMay 22, 13:50 UTC2h 0m
2026-05-22 BAW385 CAI → LHR May 22, 09:15 UTCMay 22, 10:00 UTC45m
2026-05-22 BAW384 LHR → CAI May 22, 07:05 UTCMay 22, 07:50 UTC45m
2026-05-21 BAW755 BSL → LHR May 21, 19:50 UTCMay 21, 20:55 UTC1h 5m
2026-05-21 BAW754 LHR → BSL May 21, 17:05 UTCMay 21, 18:20 UTC1h 15m
2026-05-21 SHT13Q NCL → LHR May 21, 14:45 UTCMay 21, 15:30 UTC45m
2026-05-21 SHT12N - May 21, 12:20 UTCMay 21, 13:01 UTC40m
2026-05-21 BAW41R AMS → LHR May 21, 09:55 UTCMay 21, 10:40 UTC45m
2026-05-21 BAW430A LHR → AMS May 21, 07:40 UTCMay 21, 08:20 UTC40m
2026-05-20 SHT13K NCL → LHR May 20, 16:15 UTCMay 20, 17:05 UTC50m
2026-05-20 SHT12Z - May 20, 14:30 UTCMay 20, 15:15 UTC45m
2026-05-20 BAW1495 GLA → LHR May 20, 11:00 UTCMay 20, 12:05 UTC1h 5m
2026-05-19 SHT6D - May 19, 20:20 UTCMay 19, 21:10 UTC50m
2026-05-19 BAW629 ATH → LHR May 19, 14:55 UTCMay 19, 18:30 UTC3h 35m
2026-05-19 BAW628 LHR → JMK May 19, 10:25 UTCMay 19, 13:35 UTC3h 10m
2026-05-19 SHT17Q - May 19, 06:35 UTCMay 19, 07:55 UTC1h 20m
2026-05-18 SHT16H - May 18, 19:25 UTCMay 18, 20:30 UTC1h 5m
2026-05-18 BAW449 TFS → LHR May 18, 15:30 UTCMay 18, 17:45 UTC2h 15m
2026-05-18 BAW448 LHR → TFS May 18, 12:20 UTCMay 18, 14:10 UTC1h 50m
2026-05-18 BAW731 GVA → LHR May 18, 09:10 UTCMay 18, 10:30 UTC1h 20m
2026-05-18 BAW7GV LHR → GVA May 18, 06:01 UTCMay 18, 07:10 UTC1h 10m
2026-05-17 BAW663 LCA → LHR May 17, 17:45 UTCMay 17, 20:55 UTC3h 10m
2026-05-17 BAW662 LHR → LCA May 17, 13:50 UTCMay 17, 16:45 UTC2h 55m
2026-05-17 BAW421 AGP → LHR May 17, 09:30 UTCMay 17, 11:50 UTC2h 20m

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

Mode-S 40697B frequently asked

What is Mode-S code 40697B?
40697B is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-EUYP.
Where is Mode-S 40697B registered?
Mode-S code 40697B 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 40697B broadcasting right now?
Yes. Mode-S 40697B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40697B, octal 20064573, decimal 4,221,307.
What flights does 40697B operate?
Mode-S 40697B has broadcast 20 distinct callsigns, including BAW717, BAW716, BAW703, BAW702, BAW5RF.