sensors Mode-S transponder

407B8F

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-TTNP · AIRBUS A-320neo

Hex
407B8F
Octal
20075617
Decimal
4,225,935
Country
GB
Tail
G-TTNP
Type
A20N
No current signal · last broadcast 4h ago
Flights observed
227
Distinct callsigns
20
Country
GB
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 407B8F.

Country allocation

The ICAO 24-bit address 407B8F 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
BAW709 British Airways 5 2026-05-21
BAW708 British Airways 5 2026-05-21
BAW965 British Airways 4 2026-05-03
BAW964H British Airways 4 2026-05-03
SHT13K - 3 2026-04-13
BAW968 British Airways 3 2026-04-16
BAW5PQ British Airways 3 2026-05-04
BAW569J British Airways 3 2026-05-25
BAW568J British Airways 3 2026-05-25
BAW429 British Airways 3 2026-05-14
BAW428 British Airways 3 2026-05-14
SHT3P - 2 2026-05-27
SHT2V - 2 2026-05-27
SHT17Q - 2 2026-05-17
SHT16H - 2 2026-05-16
BAW997T British Airways 2 2026-05-19
BAW996G British Airways 2 2026-05-19
BAW969H British Airways 2 2026-04-16
BAW8TD British Airways 2 2026-04-15
BAW82DM British Airways 2 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BAW378 LHR → TLS May 29, 19:05 UTCMay 29, 21:20 UTC2h 15m
2026-05-29 BAW705 VIE → LHR May 29, 11:45 UTCMay 29, 16:10 UTC4h 25m
2026-05-29 BAW704 LHR → VIE May 29, 06:10 UTCMay 29, 10:15 UTC4h 5m
2026-05-28 BAW309 CDG → LHR May 28, 17:20 UTCMay 28, 18:05 UTC45m
2026-05-28 BAW308 LHR → CDG May 28, 15:25 UTCMay 28, 16:10 UTC45m
2026-05-28 BAW619 LHR → OLB May 28, 10:35 UTCMay 28, 13:25 UTC2h 50m
2026-05-28 BAW618 LHR → OLB May 28, 06:30 UTCMay 28, 08:50 UTC2h 20m
2026-05-27 BAW609 OLB → LHR May 27, 21:15 UTCMay 27, 22:50 UTC1h 35m
2026-05-27 BAW608 OLB → LHR May 27, 16:00 UTCMay 27, 17:40 UTC1h 40m
2026-05-27 BAW433 AMS → LHR May 27, 13:20 UTCMay 27, 14:10 UTC50m
2026-05-27 BAW432 LHR → AMS May 27, 10:55 UTCMay 27, 11:30 UTC35m
2026-05-27 SHT3P MAN → LHR May 27, 08:45 UTCMay 27, 09:20 UTC35m
2026-05-27 SHT2V - May 27, 06:09 UTCMay 27, 06:49 UTC40m
2026-05-26 SHT13W NCL → LHR May 26, 19:50 UTCMay 26, 20:34 UTC45m
2026-05-26 SHT12T - May 26, 18:14 UTCMay 26, 18:55 UTC40m
2026-05-26 SHT3A MAN → LHR May 26, 15:39 UTCMay 26, 16:15 UTC35m
2026-05-26 SHT2J - May 26, 14:00 UTCMay 26, 14:30 UTC30m
2026-05-26 BAW327 CDG → LHR May 26, 10:10 UTCMay 26, 11:44 UTC1h 35m
2026-05-26 BAW326 LHR → CDG May 26, 07:10 UTCMay 26, 08:50 UTC1h 40m
2026-05-25 SHT9L EDI → LHR May 25, 19:44 UTCMay 25, 20:45 UTC1h 0m
2026-05-25 SHT8K - May 25, 17:55 UTCMay 25, 18:45 UTC50m
2026-05-25 SHT17L - May 25, 15:10 UTCMay 25, 16:30 UTC1h 20m
2026-05-25 SHT16E - May 25, 12:55 UTCMay 25, 13:55 UTC1h 0m
2026-05-25 BAW569J LIN → LHR May 25, 09:40 UTCMay 25, 11:20 UTC1h 40m
2026-05-25 BAW568J LHR → LIN May 25, 06:40 UTCMay 25, 08:10 UTC1h 30m
2026-05-24 BAW707 ZRH → LHR May 24, 14:00 UTCMay 24, 18:25 UTC4h 25m
2026-05-24 BAW706 LHR → VIE May 24, 08:30 UTCMay 24, 12:35 UTC4h 5m
2026-05-24 BAW591 VCE → LHR May 24, 05:35 UTCMay 24, 07:05 UTC1h 30m
2026-05-23 BAW590 LHR → MXP May 23, 19:50 UTCMay 23, 21:20 UTC1h 30m
2026-05-23 BAW705D LCA → LHR May 23, 12:20 UTCMay 23, 16:45 UTC4h 25m
2026-05-22 BAW704 LHR → VIE May 22, 06:10 UTCMay 22, 10:15 UTC4h 5m
2026-05-21 BAW709 ZRH → LHR May 21, 17:20 UTCMay 21, 21:40 UTC4h 20m
2026-05-21 BAW708 LHR → ZRH May 21, 11:50 UTCMay 21, 15:50 UTC4h 0m
2026-05-21 SHT19S ABZ → LHR May 21, 08:30 UTCMay 21, 09:40 UTC1h 10m
2026-05-21 SHT18K - May 21, 06:25 UTCMay 21, 07:25 UTC1h 0m
2026-05-20 BAW511 PMI → GIB May 20, 19:15 UTCMay 20, 21:30 UTC2h 15m
2026-05-20 BAW510 LHR → FAO May 20, 16:00 UTCMay 20, 18:20 UTC2h 20m
2026-05-20 BAW801 KEF → LHR May 20, 11:00 UTCMay 20, 13:40 UTC2h 40m
2026-05-20 BAW800 LHR → KEF May 20, 07:05 UTCMay 20, 09:35 UTC2h 30m
2026-05-19 BAW997T BER → LHR May 19, 19:20 UTCMay 19, 20:55 UTC1h 35m
2026-05-19 BAW996G LHR → BER May 19, 16:50 UTCMay 19, 18:10 UTC1h 20m
2026-05-19 SHT9J EDI → LHR May 19, 13:10 UTCMay 19, 14:20 UTC1h 10m
2026-05-19 SHT8W - May 19, 10:45 UTCMay 19, 11:35 UTC50m
2026-05-19 BAW825 PRG → LHR May 19, 08:05 UTCMay 19, 09:25 UTC1h 20m
2026-05-19 BAW82DM LHR → DUB May 19, 05:30 UTCMay 19, 06:20 UTC50m
2026-05-18 BAW719 ZRH → LHR May 18, 18:10 UTCMay 18, 21:35 UTC3h 24m
2026-05-18 BAW718 LHR → ZRH May 18, 13:10 UTCMay 18, 16:05 UTC2h 55m
2026-05-18 BAW303 CDG → LHR May 18, 10:15 UTCMay 18, 11:10 UTC55m
2026-05-18 BAW302 CDG → LHR May 18, 08:01 UTCMay 18, 08:50 UTC50m
2026-05-18 BAW445 VLC → LHR May 18, 05:30 UTCMay 18, 06:05 UTC35m

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

Mode-S 407B8F frequently asked

What is Mode-S code 407B8F?
407B8F is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-TTNP.
Where is Mode-S 407B8F registered?
Mode-S code 407B8F 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 407B8F 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 407B8F, octal 20075617, decimal 4,225,935.
What flights does 407B8F operate?
Mode-S 407B8F has broadcast 20 distinct callsigns, including BAW709, BAW708, BAW965, BAW964H, SHT13K.