Apparatus

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sensors Mode-S transponder

407BDC

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-RUKB · BOEING 737-800

Hex
407BDC
Octal
20075734
Decimal
4,226,012
Country
GB
Tail
G-RUKB
Type
B738
Broadcasting now · callsign RUK2HK · 31,000 ft
Flights observed
546
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 22:25 UTC

Current position

407BDC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 407BDC 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
RUK8HW - 15 2026-07-17
RUK31RP - 15 2026-07-17
RUK9YT - 11 2026-07-19
RUK9SQ - 11 2026-07-19
RUK99FV - 10 2026-07-16
RUK9624 Ryanair UK 10 2026-07-19
RUK819W - 10 2026-07-19
RUK9ZY - 9 2026-07-16
RUK92PQ - 9 2026-07-16
RUK6UA - 9 2026-07-18
RUK3UE - 9 2026-07-19
RUK27NX - 9 2026-07-10
RUK14MR - 9 2026-07-18
RUK9MH - 8 2026-07-16
RUK9605 - 8 2026-07-17
RUK72KJ - 8 2026-07-09
RUK571 - 8 2026-07-15
RUK4027 - 8 2026-07-10
RUK3GZ Ryanair UK 8 2026-07-19
RUK955K - 7 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 RUK60KQ STN → EDI Jul 26, 21:20 UTCJul 26, 22:20 UTC1h 0m
2026-07-26 RUK9XM EDI → STN Jul 26, 19:45 UTCJul 26, 20:35 UTC50m
2026-07-26 RUK879F BOH → EDI Jul 26, 17:30 UTCJul 26, 18:40 UTC1h 10m
2026-07-26 RUK1133 EDI → BOH Jul 26, 15:35 UTCJul 26, 16:35 UTC1h 0m
2026-07-26 RUK652T RAK → EDI Jul 26, 06:25 UTCJul 26, 14:35 UTC8h 11m
2026-07-25 RUK60KQ STN → EDI Jul 25, 19:25 UTCJul 25, 20:20 UTC55m
2026-07-25 RUK9XM EDI → STN Jul 25, 17:35 UTCJul 25, 18:30 UTC55m
2026-07-25 RUK178 BFS → EDI Jul 25, 16:05 UTCJul 25, 16:45 UTC40m
2026-07-25 RUK7QL EDI → BFS Jul 25, 15:00 UTCJul 25, 15:25 UTC25m
2026-07-25 RUK69HG MLA → EDI Jul 25, 10:10 UTCJul 25, 14:00 UTC3h 50m
2026-07-25 RUK6AL EDI → MLA Jul 25, 06:00 UTCJul 25, 09:15 UTC3h 15m
2026-07-24 RUK9996 NQY → EDI Jul 24, 22:50 UTCJul 25, 00:00 UTC1h 10m
2026-07-24 RUK524C EDI → NQY Jul 24, 15:20 UTCJul 24, 16:20 UTC1h 0m
2026-07-24 RUK861 EDI → AGA Jul 24, 05:35 UTCJul 24, 14:10 UTC8h 35m
2026-07-23 RUK879F BOH → EDI Jul 23, 22:05 UTCJul 23, 23:10 UTC1h 5m
2026-07-23 RUK1133 EDI → BOH Jul 23, 20:15 UTCJul 23, 21:15 UTC1h 0m
2026-07-23 RUK178 BFS → EDI Jul 23, 18:45 UTCJul 23, 19:20 UTC35m
2026-07-23 RUK7QL EDI → BFS Jul 23, 17:30 UTCJul 23, 18:00 UTC30m
2026-07-23 RUK29RK TFS → EDI Jul 23, 12:35 UTCJul 23, 16:30 UTC3h 55m
2026-07-23 RUK2969 - Jul 23, 06:55 UTCJul 23, 11:10 UTC4h 15m
2026-07-22 RUK652T RAK → EDI Jul 22, 19:10 UTCJul 22, 22:40 UTC3h 30m
2026-07-22 RUK194E EDI → RAK Jul 22, 14:40 UTCJul 22, 17:55 UTC3h 15m
2026-07-22 RUK60KQ STN → EDI Jul 22, 12:45 UTCJul 22, 13:45 UTC1h 0m
2026-07-22 RUK9XM EDI → STN Jul 22, 11:10 UTCJul 22, 11:50 UTC40m
2026-07-21 RUK178 BFS → EDI Jul 21, 23:00 UTCJul 21, 23:30 UTC30m
2026-07-21 RUK7QL EDI → BFS Jul 21, 21:55 UTCJul 21, 22:25 UTC30m
2026-07-21 RUK1DB AGP → EDI Jul 21, 18:15 UTCJul 21, 21:10 UTC2h 55m
2026-07-21 RUK5TX - Jul 21, 13:55 UTCJul 21, 16:40 UTC2h 45m
2026-07-21 RUK5BT OTP → EDI Jul 21, 09:20 UTCJul 21, 12:40 UTC3h 20m
2026-07-21 RUK5614 EDI → OTP Jul 21, 05:25 UTCJul 21, 08:25 UTC3h 0m
2026-07-20 RUK7EX STN → EDI Jul 20, 21:20 UTCJul 20, 22:15 UTC55m
2026-07-20 RUK45VZ - Jul 20, 19:40 UTCJul 20, 20:45 UTC1h 5m
2026-07-20 RUK178 BFS → EDI Jul 20, 18:20 UTCJul 20, 18:50 UTC30m
2026-07-20 RUK96WL - Jul 20, 15:55 UTCJul 20, 17:10 UTC1h 15m
2026-07-20 RUK9609 BFS → BVA Jul 20, 13:45 UTCJul 20, 14:55 UTC1h 10m
2026-07-20 RUK6807 KRK → BFS Jul 20, 08:25 UTCJul 20, 10:50 UTC2h 25m
2026-07-20 RUK7NA BFS → KRK Jul 20, 05:00 UTCJul 20, 07:20 UTC2h 20m
2026-07-19 RUK9YT - Jul 19, 19:50 UTCJul 19, 22:35 UTC2h 45m
2026-07-19 RUK9SQ - Jul 19, 16:05 UTCJul 19, 18:45 UTC2h 40m
2026-07-19 RUK9624 GRO → BFS Jul 19, 12:45 UTCJul 19, 15:05 UTC2h 20m
2026-07-19 RUK819W - Jul 19, 09:25 UTCJul 19, 11:25 UTC2h 0m
2026-07-19 RUK3GZ MAN → BFS Jul 19, 08:05 UTCJul 19, 08:40 UTC35m
2026-07-19 RUK3UE - Jul 19, 06:20 UTCJul 19, 06:55 UTC35m
2026-07-18 RUK69PG STN → BFS Jul 18, 21:10 UTCJul 18, 22:00 UTC50m
2026-07-18 RUK84EH BFS → STN Jul 18, 19:25 UTCJul 18, 20:15 UTC50m
2026-07-18 RUK9561 FAO → BFS Jul 18, 16:00 UTCJul 18, 18:40 UTC2h 40m
2026-07-18 RUK74UL - Jul 18, 12:25 UTCJul 18, 15:10 UTC2h 45m
2026-07-18 RUK3GZ MAN → BFS Jul 18, 10:10 UTCJul 18, 10:45 UTC35m
2026-07-18 RUK3UE - Jul 18, 08:40 UTCJul 18, 09:15 UTC35m
2026-07-18 RUK14MR EDI → BFS Jul 18, 07:30 UTCJul 18, 08:00 UTC30m

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

Mode-S 407BDC frequently asked

What is Mode-S code 407BDC?
407BDC is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-RUKB.
Where is Mode-S 407BDC registered?
Mode-S code 407BDC 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 407BDC broadcasting right now?
Yes. Mode-S 407BDC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407BDC, octal 20075734, decimal 4,226,012.
What flights does 407BDC operate?
Mode-S 407BDC has broadcast 20 distinct callsigns, including RUK8HW, RUK31RP, RUK9YT, RUK9SQ, RUK99FV.