Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

407CB4

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-RUKH · BOEING 737-800

Hex
407CB4
Octal
20076264
Decimal
4,226,228
Country
GB
Tail
G-RUKH
Type
B738
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
444
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S 407CB4.

Country allocation

The ICAO 24-bit address 407CB4 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
RUK7AY - 22 2026-07-20
RUK4Q - 21 2026-07-20
RUK5AK Ryanair UK 10 2026-07-25
RUK2HK Ryanair UK 10 2026-07-25
RUK99FV - 9 2026-07-13
RUK92PQ - 9 2026-07-13
RUK1592 Ryanair UK 8 2026-07-21
RUK5ZH Ryanair UK 7 2026-07-20
RUK1593 Ryanair UK 7 2026-07-21
RUK9NE - 6 2026-07-01
RUK8491 - 6 2026-07-20
RUK2898 Ryanair UK 6 2026-07-20
RUK95UU - 5 2026-07-16
RUK85XY Ryanair UK 5 2026-07-26
RUK85AN - 5 2026-07-01
RUK82VC - 5 2026-07-12
RUK5271 - 5 2026-07-12
RUK4371 - 5 2026-07-16
RUK417H Ryanair UK 5 2026-07-26
RUK3UE - 5 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RUK1XR TIA → STN Jul 26, 16:50 UTCJul 26, 22:00 UTC5h 10m
2026-07-26 RUK3FH STN → TIA Jul 26, 15:45 UTCJul 26, 16:45 UTC1h 0m
2026-07-26 RUK6EH TRF → STN Jul 26, 12:45 UTCJul 26, 14:10 UTC1h 25m
2026-07-26 RUK1EF STN → TRF Jul 26, 10:25 UTCJul 26, 11:55 UTC1h 30m
2026-07-26 RUK85XY OSL → STN Jul 26, 07:50 UTCJul 26, 09:30 UTC1h 40m
2026-07-26 RUK417H STN → OSL Jul 26, 05:05 UTCJul 26, 06:45 UTC1h 41m
2026-07-25 RUK2HK GLA → STN Jul 25, 21:55 UTCJul 25, 22:50 UTC55m
2026-07-25 RUK5AK STN → GLA Jul 25, 20:15 UTCJul 25, 21:15 UTC1h 0m
2026-07-25 RUK17DP BSL → STN Jul 25, 18:15 UTCJul 25, 19:25 UTC1h 10m
2026-07-25 RUK19AV STN → BSL Jul 25, 14:50 UTCJul 25, 15:50 UTC1h 0m
2026-07-25 RUK9GK TIA → STN Jul 25, 07:35 UTCJul 25, 13:30 UTC5h 55m
2026-07-24 RUK5HU - Jul 24, 21:05 UTCJul 24, 23:10 UTC2h 5m
2026-07-24 RUK7MY STN → OSL Jul 24, 18:05 UTCJul 24, 19:45 UTC1h 40m
2026-07-24 RUK1694 LNZ → STN Jul 24, 15:05 UTCJul 24, 16:45 UTC1h 40m
2026-07-24 RUK1695 STN → LNZ Jul 24, 12:45 UTCJul 24, 14:15 UTC1h 30m
2026-07-24 RUK3YJ TNG → STN Jul 24, 09:10 UTCJul 24, 11:30 UTC2h 20m
2026-07-24 RUK6EC STN → TNG Jul 24, 05:30 UTCJul 24, 08:15 UTC2h 45m
2026-07-23 RUK3YJ TNG → STN Jul 23, 20:40 UTCJul 23, 23:00 UTC2h 20m
2026-07-23 RUK6EC STN → TNG Jul 23, 17:00 UTCJul 23, 19:40 UTC2h 40m
2026-07-23 RUK17DP BSL → STN Jul 23, 14:30 UTCJul 23, 15:40 UTC1h 10m
2026-07-23 RUK19AV STN → BSL Jul 23, 12:25 UTCJul 23, 13:35 UTC1h 10m
2026-07-23 RUK4VQ BCN → STN Jul 23, 09:10 UTCJul 23, 11:05 UTC1h 55m
2026-07-23 RUK4HP - Jul 23, 06:20 UTCJul 23, 08:00 UTC1h 40m
2026-07-22 RUK644Q AGA → STN Jul 22, 21:10 UTCJul 22, 23:45 UTC2h 35m
2026-07-22 RUK10FT STN → AGA Jul 22, 16:10 UTCJul 22, 19:25 UTC3h 15m
2026-07-22 RUK90JY RAK → STN Jul 22, 11:30 UTCJul 22, 14:45 UTC3h 15m
2026-07-21 RUK57TQ RAK → STN Jul 21, 21:20 UTCJul 22, 00:20 UTC3h 0m
2026-07-21 RUK27NX MAN → RAK Jul 21, 16:15 UTCJul 21, 19:10 UTC2h 55m
2026-07-21 RUK7KH VIE → MAN Jul 21, 13:00 UTCJul 21, 15:00 UTC2h 0m
2026-07-21 RUK693 MAN → VIE Jul 21, 09:55 UTCJul 21, 12:00 UTC2h 5m
2026-07-21 RUK1592 CGN → MAN Jul 21, 07:45 UTCJul 21, 08:55 UTC1h 10m
2026-07-21 RUK1593 MAN → CGN Jul 21, 05:45 UTCJul 21, 07:00 UTC1h 15m
2026-07-20 RUK5ZH VCE → MAN Jul 20, 22:35 UTCJul 20, 22:50 UTC15m
2026-07-20 RUK5ZH VCE → MAN Jul 20, 18:35 UTCJul 20, 20:35 UTC2h 0m
2026-07-20 RUK2898 MAN → VCE Jul 20, 15:50 UTCJul 20, 17:40 UTC1h 50m
2026-07-20 RUK8491 - Jul 20, 14:15 UTCJul 20, 15:00 UTC45m
2026-07-20 RUF1FN - Jul 20, 12:55 UTCJul 20, 13:25 UTC30m
2026-07-20 RUK7AY - Jul 20, 10:35 UTCJul 20, 12:00 UTC1h 25m
2026-07-20 RUK4Q MAN → TRF Jul 20, 08:10 UTCJul 20, 09:45 UTC1h 35m
2026-07-19 RUK3FQ - Jul 19, 22:35 UTCJul 19, 23:10 UTC35m
2026-07-19 RUK1917 MAN → DUB Jul 19, 20:45 UTCJul 19, 21:30 UTC45m
2026-07-19 RUK9845 SDR → MAN Jul 19, 18:20 UTCJul 19, 19:55 UTC1h 35m
2026-07-19 RUK2196 - Jul 19, 15:25 UTCJul 19, 16:50 UTC1h 25m
2026-07-19 RUK87AL RBA → MAN Jul 19, 11:25 UTCJul 19, 14:25 UTC3h 0m
2026-07-19 RUK1711 MAN → RBA Jul 19, 07:35 UTCJul 19, 10:35 UTC3h 0m
2026-07-18 RUK1899 - Jul 18, 19:30 UTCJul 18, 20:05 UTC35m
2026-07-18 RUK101F MAN → DUB Jul 18, 18:10 UTCJul 18, 18:50 UTC40m
2026-07-18 RUK3233 AGP → MAN Jul 18, 14:45 UTCJul 18, 17:15 UTC2h 30m
2026-07-18 RUK3232 MAN → AGP Jul 18, 11:10 UTCJul 18, 13:40 UTC2h 30m
2026-07-18 RUK7547 POZ → MAN Jul 18, 07:50 UTCJul 18, 09:50 UTC2h 0m

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

Mode-S 407CB4 frequently asked

What is Mode-S code 407CB4?
407CB4 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-RUKH.
Where is Mode-S 407CB4 registered?
Mode-S code 407CB4 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 407CB4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407CB4, octal 20076264, decimal 4,226,228.
What flights does 407CB4 operate?
Mode-S 407CB4 has broadcast 20 distinct callsigns, including RUK7AY, RUK4Q, RUK5AK, RUK2HK, RUK99FV.