Apparatus

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sensors Mode-S transponder

40066C

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-BMRJ · BOEING 757-200

Hex
40066C
Octal
20003154
Decimal
4,195,948
Country
GB
Tail
G-BMRJ
Type
B752
No current signal · last broadcast Jul 24, 21:35 UTC
Flights observed
183
Distinct callsigns
20
Country
GB
Last broadcast
Jul 24, 21:35 UTC

Last known position

Most recent position reported by Mode-S 40066C.

Country allocation

The ICAO 24-bit address 40066C 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
DHK2877 - 24 2026-07-21
DHK2876 DHL Air 23 2026-07-21
DHK2134 DHL Air 23 2026-07-24
DHK2135 DHL Air 18 2026-07-24
DHK12G - 16 2026-07-17
DHK52H DHL Air 14 2026-07-21
DHK209P - 11 2026-07-08
DHK7017 - 10 2026-07-08
DHK227P DHL Air 8 2026-07-20
DHK427 DHL Air 7 2026-07-20
DHK3318 - 6 2026-07-06
DHK4983 - 5 2026-06-29
DHK201P DHL Air 4 2026-07-18
DHK4894 - 3 2026-04-29
DHK428 - 3 2026-04-28
DHK838P - 2 2026-07-03
DHK838 - 2 2026-07-17
DHK801P - 1 2026-06-28
DHK801 - 1 2026-07-01
DHK56W DHL Air 1 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 DHK2135 EDI → LEJ Jul 24, 19:50 UTCJul 24, 21:25 UTC1h 35m
2026-07-24 DHK2134 LEJ → EDI Jul 24, 02:50 UTCJul 24, 04:45 UTC1h 55m
2026-07-23 DHK2135 EDI → LEJ Jul 23, 19:20 UTCJul 23, 21:05 UTC1h 45m
2026-07-23 DHK2134 LEJ → EDI Jul 23, 03:00 UTCJul 23, 04:45 UTC1h 45m
2026-07-22 DHK2135 EDI → LEJ Jul 22, 19:30 UTCJul 22, 21:15 UTC1h 45m
2026-07-22 DHK2134 LEJ → EDI Jul 22, 03:10 UTCJul 22, 05:00 UTC1h 50m
2026-07-21 DHK52H EMA → LEJ Jul 21, 22:40 UTCJul 22, 00:10 UTC1h 30m
2026-07-21 DHK2877 ABZ → EMA Jul 21, 18:30 UTCJul 21, 19:25 UTC55m
2026-07-21 DHK2876 EMA → ABZ Jul 21, 05:10 UTCJul 21, 06:05 UTC55m
2026-07-20 DHK427 CGN → EMA Jul 20, 22:20 UTCJul 20, 23:20 UTC1h 0m
2026-07-20 DHK227P OSL → OSL Jul 20, 17:10 UTCJul 20, 17:50 UTC40m
2026-07-18 DHK201P EDI → LEJ Jul 18, 07:25 UTCJul 18, 09:00 UTC1h 35m
2026-07-18 DHK2134 LEJ → EDI Jul 18, 04:00 UTCJul 18, 05:40 UTC1h 40m
2026-07-17 DHK838 GVA → LEJ Jul 17, 08:49 UTCJul 17, 10:00 UTC1h 10m
2026-07-17 DHK12G LEJ → GVA Jul 17, 05:39 UTCJul 17, 07:00 UTC1h 20m
2026-07-16 DHK2135 EDI → LEJ Jul 16, 19:35 UTCJul 16, 21:15 UTC1h 40m
2026-07-16 DHK2134 LEJ → EDI Jul 16, 03:05 UTCJul 16, 04:40 UTC1h 35m
2026-07-15 DHK2135 - Jul 15, 19:25 UTCJul 15, 21:05 UTC1h 40m
2026-07-15 DHK2134 LEJ → EDI Jul 15, 02:55 UTCJul 15, 04:30 UTC1h 35m
2026-07-14 DHK52H EMA → LEJ Jul 14, 22:40 UTCJul 15, 00:05 UTC1h 24m
2026-07-14 DHK2877 ABZ → EMA Jul 14, 18:35 UTCJul 14, 19:30 UTC55m
2026-07-14 DHK2876 EMA → ABZ Jul 14, 05:00 UTCJul 14, 05:50 UTC50m
2026-07-13 DHK427 CGN → EMA Jul 13, 22:15 UTCJul 13, 23:20 UTC1h 5m
2026-07-13 DHK227P OSL → OSL Jul 13, 17:10 UTCJul 13, 18:00 UTC50m
2026-07-11 DHK201P EDI → LEJ Jul 11, 06:55 UTCJul 11, 08:25 UTC1h 30m
2026-07-11 DHK2134 LEJ → EDI Jul 11, 04:01 UTCJul 11, 05:40 UTC1h 40m
2026-07-10 DHK2135 - Jul 10, 19:40 UTCJul 10, 21:15 UTC1h 35m
2026-07-10 DHK2134 LEJ → EDI Jul 10, 02:50 UTCJul 10, 04:35 UTC1h 45m
2026-07-09 DHK52H EMA → LEJ Jul 9, 22:35 UTCJul 10, 00:05 UTC1h 30m
2026-07-09 DHK2877 ABZ → EMA Jul 9, 18:25 UTCJul 9, 19:15 UTC50m
2026-07-09 DHK2876 EMA → ABZ Jul 9, 05:15 UTCJul 9, 06:00 UTC45m
2026-07-08 DHK7017 - Jul 8, 22:15 UTCJul 9, 00:05 UTC1h 50m
2026-07-08 DHK209P - Jul 8, 19:25 UTCJul 8, 20:15 UTC50m
2026-07-08 DHK12G LEJ → GVA Jul 8, 03:05 UTCJul 8, 04:15 UTC1h 10m
2026-07-07 DHK52H EMA → LEJ Jul 7, 22:40 UTCJul 8, 00:10 UTC1h 30m
2026-07-07 DHK2877 ABZ → EMA Jul 7, 18:50 UTCJul 7, 19:40 UTC50m
2026-07-07 DHK2876 EMA → ABZ Jul 7, 05:15 UTCJul 7, 06:05 UTC50m
2026-07-06 DHK427 CGN → EMA Jul 6, 22:35 UTCJul 6, 23:40 UTC1h 5m
2026-07-06 DHK227P OSL → OSL Jul 6, 16:05 UTCJul 6, 17:35 UTC1h 30m
2026-07-06 DHK3318 LEJ → OSL Jul 6, 01:05 UTCJul 6, 02:40 UTC1h 35m
2026-07-04 DHK201P EDI → LEJ Jul 4, 07:25 UTCJul 4, 09:00 UTC1h 35m
2026-07-04 DHK2134 - Jul 4, 05:00 UTCJul 4, 06:00 UTC1h 0m
2026-07-04 DHK2134 - Jul 4, 04:00 UTCJul 4, 04:55 UTC55m
2026-07-03 DHK838P - Jul 3, 05:25 UTCJul 3, 06:40 UTC1h 15m
2026-07-03 DHK12G LEJ → GVA Jul 3, 02:55 UTCJul 3, 04:10 UTC1h 15m
2026-07-02 DHK52H EMA → LEJ Jul 2, 22:40 UTCJul 3, 00:05 UTC1h 25m
2026-07-02 DHK2877 ABZ → EMA Jul 2, 18:20 UTCJul 2, 19:15 UTC55m
2026-07-02 DHK2876 EMA → ABZ Jul 2, 05:15 UTCJul 2, 06:15 UTC1h 0m
2026-07-01 DHK2877 ABZ → EMA Jul 1, 18:35 UTCJul 1, 19:30 UTC55m
2026-07-01 DHK2876 EMA → ABZ Jul 1, 05:15 UTCJul 1, 06:15 UTC1h 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-BMRJ page for operator, model, and routing details .

Mode-S 40066C frequently asked

What is Mode-S code 40066C?
40066C is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-BMRJ.
Where is Mode-S 40066C registered?
Mode-S code 40066C 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 40066C broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 21:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40066C, octal 20003154, decimal 4,195,948.
What flights does 40066C operate?
Mode-S 40066C has broadcast 20 distinct callsigns, including DHK2877, DHK2876, DHK2134, DHK2135, DHK12G.