Apparatus

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sensors Mode-S transponder

407CB2

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-RUKF · BOEING 737-800

Hex
407CB2
Octal
20076262
Decimal
4,226,226
Country
GB
Tail
G-RUKF
Type
B738
No current signal · last broadcast Jul 26, 21:40 UTC
Flights observed
581
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 21:40 UTC

Last known position

Most recent position reported by Mode-S 407CB2.

Country allocation

The ICAO 24-bit address 407CB2 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 - 18 2026-07-01
RUK4Q - 17 2026-07-01
RUK99FV - 13 2026-06-25
RUK92PQ Ryanair UK 12 2026-05-22
RUK627N Ryanair UK 10 2026-07-26
RUK5DM Ryanair UK 10 2026-07-26
RUK4027 Ryanair UK 8 2026-05-24
RUK85XY - 7 2026-07-18
RUK3GZ - 7 2026-07-02
RUK14 - 7 2026-07-03
RUK8491 - 6 2026-07-03
RUK80AJ Ryanair UK 6 2026-06-13
RUK6KR - 6 2026-07-03
RUK6EC - 6 2026-07-07
RUK60KQ Ryanair UK 6 2026-07-23
RUK54DE Ryanair UK 6 2026-06-13
RUK4UK - 6 2026-07-20
RUK4FM Ryanair UK 6 2026-05-12
RUK417H - 6 2026-07-18
RUK4028 Ryanair UK 6 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RUK6924 EDI → CPH Jul 26, 20:20 UTCJul 26, 21:40 UTC1h 20m
2026-07-26 RUK178 BFS → EDI Jul 26, 19:00 UTCJul 26, 19:30 UTC30m
2026-07-26 RUK7QL EDI → BFS Jul 26, 17:45 UTCJul 26, 18:15 UTC30m
2026-07-26 RUK1653 VCE → EDI Jul 26, 14:25 UTCJul 26, 17:00 UTC2h 35m
2026-07-26 RUK1652 EDI → VCE Jul 26, 10:40 UTCJul 26, 12:40 UTC2h 0m
2026-07-26 RUK5DM STN → EDI Jul 26, 08:40 UTCJul 26, 09:40 UTC1h 0m
2026-07-26 RUK627N EDI → STN Jul 26, 07:00 UTCJul 26, 07:50 UTC50m
2026-07-25 RUK82GR - Jul 25, 21:10 UTCJul 26, 00:05 UTC2h 55m
2026-07-25 RUK8294 EDI → TIA Jul 25, 16:45 UTCJul 25, 19:20 UTC2h 35m
2026-07-25 RUK6625 KRK → EDI Jul 25, 13:20 UTCJul 25, 15:50 UTC2h 30m
2026-07-25 RUK6624 EDI → KRK Jul 25, 10:00 UTCJul 25, 12:20 UTC2h 20m
2026-07-25 RUK5DM STN → EDI Jul 25, 08:05 UTCJul 25, 09:10 UTC1h 5m
2026-07-25 RUK627N EDI → STN Jul 25, 05:35 UTCJul 25, 06:40 UTC1h 5m
2026-07-24 RUK879F BOH → EDI Jul 24, 21:55 UTCJul 24, 23:00 UTC1h 5m
2026-07-24 RUK1133 EDI → BOH Jul 24, 19:55 UTCJul 24, 20:55 UTC1h 0m
2026-07-24 RUK178 BFS → EDI Jul 24, 18:30 UTCJul 24, 19:05 UTC35m
2026-07-24 RUK7QL EDI → BFS Jul 24, 17:10 UTCJul 24, 17:40 UTC30m
2026-07-24 RUK6275 BCN → EDI Jul 24, 13:45 UTCJul 24, 16:05 UTC2h 20m
2026-07-24 RUK6274 EDI → BCN Jul 24, 09:55 UTCJul 24, 12:35 UTC2h 40m
2026-07-24 RUK5DM STN → EDI Jul 24, 07:55 UTCJul 24, 08:50 UTC55m
2026-07-24 RUK627N EDI → STN Jul 24, 05:45 UTCJul 24, 06:50 UTC1h 5m
2026-07-23 RUK69HG MLA → EDI Jul 23, 20:20 UTCJul 24, 00:05 UTC3h 45m
2026-07-23 RUK6AL EDI → MLA Jul 23, 16:05 UTCJul 23, 19:25 UTC3h 20m
2026-07-23 RUK60KQ STN → EDI Jul 23, 12:30 UTCJul 23, 13:30 UTC1h 0m
2026-07-23 RUK9XM EDI → STN Jul 23, 10:45 UTCJul 23, 11:45 UTC1h 0m
2026-07-23 RUK5DM - Jul 23, 08:30 UTCJul 23, 09:30 UTC1h 0m
2026-07-23 RUK627N EDI → STN Jul 23, 06:50 UTCJul 23, 07:50 UTC1h 0m
2026-07-22 RUK7EX STN → EDI Jul 22, 19:40 UTCJul 22, 20:35 UTC55m
2026-07-22 RUK45VZ EDI → STN Jul 22, 17:55 UTCJul 22, 18:55 UTC1h 0m
2026-07-22 RUK9362 NQY → EDI Jul 22, 15:50 UTCJul 22, 16:55 UTC1h 5m
2026-07-22 RUK524C EDI → NQY Jul 22, 13:55 UTCJul 22, 14:55 UTC1h 0m
2026-07-22 RUK82GR - Jul 22, 10:20 UTCJul 22, 12:50 UTC2h 30m
2026-07-21 RUK60KQ STN → EDI Jul 21, 20:40 UTCJul 21, 21:30 UTC50m
2026-07-21 RUK9XM EDI → STN Jul 21, 19:05 UTCJul 21, 20:00 UTC55m
2026-07-21 RUK879F BOH → EDI Jul 21, 17:20 UTCJul 21, 18:20 UTC1h 0m
2026-07-21 RUK1133 EDI → BOH Jul 21, 15:30 UTCJul 21, 16:25 UTC55m
2026-07-21 RK5632 SDR → EDI Jul 21, 12:10 UTCJul 21, 14:10 UTC2h 0m
2026-07-21 RUK7LJ GDN → BFS Jul 21, 09:30 UTCJul 21, 11:05 UTC1h 35m
2026-07-21 RUK5DM - Jul 21, 07:15 UTCJul 21, 08:15 UTC1h 0m
2026-07-21 RUK627N EDI → STN Jul 21, 05:30 UTCJul 21, 06:25 UTC55m
2026-07-20 RUK9KP PMI → EDI Jul 20, 22:35 UTCJul 21, 01:20 UTC2h 44m
2026-07-20 RUK6656 EDI → PMI Jul 20, 17:40 UTCJul 20, 20:05 UTC2h 25m
2026-07-20 RUK60KQ STN → EDI Jul 20, 15:55 UTCJul 20, 16:50 UTC55m
2026-07-20 RUK6EH TRF → STN Jul 20, 12:00 UTCJul 20, 13:25 UTC1h 25m
2026-07-20 RUK1EF STN → TRF Jul 20, 09:45 UTCJul 20, 11:15 UTC1h 30m
2026-07-20 RUK4UK GLA → STN Jul 20, 07:45 UTCJul 20, 08:50 UTC1h 5m
2026-07-20 RUK3DN STN → GLA Jul 20, 05:25 UTCJul 20, 06:20 UTC55m
2026-07-19 RUK24LQ - Jul 19, 20:25 UTCJul 19, 22:45 UTC2h 20m
2026-07-19 RUK530X STN → SJJ Jul 19, 17:10 UTCJul 19, 19:00 UTC1h 50m
2026-07-19 RUK9GK TIA → STN Jul 19, 13:20 UTCJul 19, 15:55 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-RUKF page for operator, model, and routing details .

Mode-S 407CB2 frequently asked

What is Mode-S code 407CB2?
407CB2 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-RUKF.
Where is Mode-S 407CB2 registered?
Mode-S code 407CB2 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 407CB2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407CB2, octal 20076262, decimal 4,226,226.
What flights does 407CB2 operate?
Mode-S 407CB2 has broadcast 20 distinct callsigns, including RUK7AY, RUK4Q, RUK99FV, RUK92PQ, RUK627N.