sensors Mode-S transponder

407CBF

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-LNCC · AGUSTA AW-169

Hex
407CBF
Octal
20076277
Decimal
4,226,239
Country
GB
Tail
G-LNCC
Type
A169
No current signal · last broadcast 3h ago
Flights observed
293
Distinct callsigns
3
Country
GB
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 407CBF.

Country allocation

The ICAO 24-bit address 407CBF 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 3 distinct

Callsign Airline Flights Last seen
HLE29 - 279 2026-07-14
HEL29 - 7 2026-07-13
GLNCC - 7 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 HLE29 - Jul 14, 19:25 UTCJul 14, 19:40 UTC15m
2026-07-14 HLE29 - Jul 14, 18:05 UTCJul 14, 18:55 UTC50m
2026-07-14 HLE29 - Jul 14, 16:25 UTCJul 14, 16:45 UTC20m
2026-07-14 HLE29 - Jul 14, 15:40 UTCJul 14, 15:50 UTC10m
2026-07-14 HLE29 - Jul 14, 14:25 UTCJul 14, 14:45 UTC20m
2026-07-14 HLE29 - Jul 14, 13:30 UTCJul 14, 13:45 UTC15m
2026-07-14 HLE29 - Jul 14, 09:10 UTCJul 14, 09:25 UTC15m
2026-07-14 HLE29 - Jul 14, 08:00 UTCJul 14, 08:20 UTC20m
2026-07-13 HLE29 WTN → WTN Jul 13, 15:55 UTCJul 13, 16:35 UTC40m
2026-07-13 HLE29 - Jul 13, 13:35 UTCJul 13, 13:45 UTC10m
2026-07-13 HLE29 - Jul 13, 12:25 UTCJul 13, 12:35 UTC10m
2026-07-13 HEL29 - Jul 13, 10:20 UTCJul 13, 10:30 UTC10m
2026-07-13 HEL29 - Jul 13, 09:35 UTCJul 13, 09:45 UTC10m
2026-07-12 HEL29 WTN → WTN Jul 12, 20:50 UTCJul 12, 22:10 UTC1h 20m
2026-07-11 HEL29 - Jul 11, 19:10 UTCJul 11, 19:35 UTC25m
2026-07-11 HEL29 - Jul 11, 18:20 UTCJul 11, 18:35 UTC15m
2026-07-11 HEL29 WTN → WTN Jul 11, 17:05 UTCJul 11, 17:45 UTC40m
2026-07-11 HEL29 - Jul 11, 10:40 UTCJul 11, 11:00 UTC20m
2026-07-10 GLNCC - Jul 10, 15:25 UTCJul 10, 16:35 UTC1h 10m
2026-07-10 GLNCC - Jul 10, 13:35 UTCJul 10, 14:20 UTC45m
2026-07-10 GLNCC - Jul 10, 10:35 UTCJul 10, 12:20 UTC1h 45m
2026-07-09 GLNCC - Jul 9, 15:20 UTCJul 9, 15:50 UTC30m
2026-06-22 GLNCC - Jun 22, 14:10 UTCJun 22, 15:59 UTC1h 50m
2026-06-22 GLNCC - Jun 22, 11:35 UTCJun 22, 12:15 UTC40m
2026-06-22 GLNCC - Jun 22, 09:00 UTCJun 22, 10:19 UTC1h 20m
2026-06-21 HLE29 - Jun 21, 17:29 UTCJun 21, 17:39 UTC10m
2026-06-21 HLE29 - Jun 21, 16:30 UTCJun 21, 16:39 UTC10m
2026-06-21 HLE29 - Jun 21, 14:19 UTCJun 21, 15:30 UTC1h 10m
2026-06-20 HLE29 WTN → WTN Jun 20, 21:10 UTCJun 20, 22:54 UTC1h 45m
2026-06-20 HLE29 - Jun 20, 18:34 UTCJun 20, 18:59 UTC25m
2026-06-20 HLE29 - Jun 20, 16:09 UTCJun 20, 16:19 UTC10m
2026-06-20 HLE29 - Jun 20, 10:04 UTCJun 20, 10:20 UTC15m
2026-06-20 HLE29 - Jun 20, 08:55 UTCJun 20, 09:14 UTC20m
2026-06-20 HLE29 - Jun 20, 07:54 UTCJun 20, 08:09 UTC15m
2026-06-19 HLE29 - Jun 19, 22:19 UTCJun 19, 22:39 UTC20m
2026-06-18 HLE29 - Jun 18, 21:20 UTCJun 18, 21:40 UTC20m
2026-06-18 HLE29 - Jun 18, 19:40 UTCJun 18, 20:30 UTC50m
2026-06-17 HLE29 - Jun 17, 20:35 UTCJun 17, 20:50 UTC15m
2026-06-17 HLE29 - Jun 17, 19:30 UTCJun 17, 19:50 UTC20m
2026-06-17 HLE29 - Jun 17, 18:20 UTCJun 17, 18:40 UTC20m
2026-06-17 HLE29 - Jun 17, 14:15 UTCJun 17, 14:35 UTC20m
2026-06-17 HLE29 - Jun 17, 13:20 UTCJun 17, 13:30 UTC10m
2026-06-16 HLE29 - Jun 16, 19:35 UTCJun 16, 19:45 UTC10m
2026-06-16 HLE29 - Jun 16, 18:05 UTCJun 16, 18:20 UTC15m
2026-06-16 HLE29 - Jun 16, 16:30 UTCJun 16, 16:45 UTC15m
2026-06-16 HLE29 - Jun 16, 12:14 UTCJun 16, 12:20 UTC5m
2026-06-16 HLE29 - Jun 16, 11:00 UTCJun 16, 11:25 UTC25m
2026-06-15 HLE29 WTN → WTN Jun 15, 22:49 UTCJun 15, 23:25 UTC35m
2026-06-15 HLE29 - Jun 15, 21:40 UTCJun 15, 22:05 UTC25m
2026-06-15 HLE29 - Jun 15, 20:30 UTCJun 15, 20:45 UTC15m

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

Mode-S 407CBF frequently asked

What is Mode-S code 407CBF?
407CBF is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-LNCC.
Where is Mode-S 407CBF registered?
Mode-S code 407CBF 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 407CBF broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407CBF, octal 20076277, decimal 4,226,239.
What flights does 407CBF operate?
Mode-S 407CBF has broadcast 3 distinct callsigns, including HLE29, HEL29, GLNCC.