sensors Mode-S transponder

4067A4

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-DHLK · BOEING 767-300

Hex
4067A4
Octal
20063644
Decimal
4,220,836
Country
GB
Tail
G-DHLK
Type
B763
No current signal · last broadcast 12h ago
Flights observed
125
Distinct callsigns
20
Country
GB
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 4067A4.

Country allocation

The ICAO 24-bit address 4067A4 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
DHK817 DHL Air 12 2026-05-17
DHK038 - 8 2026-05-25
DHK036 DHL Air 7 2026-05-20
DHK035 DHL Air 7 2026-05-21
DHK3999 DHL Air 6 2026-05-13
DHK7LK DHL Air 5 2026-05-28
DHK037 - 5 2026-05-26
DHK009A - 5 2026-04-13
DHK811 DHL Air 4 2026-05-29
DHK4SM DHL Air 4 2026-05-29
DHK3998 DHL Air 4 2026-05-13
DHK362 DHL Air 4 2026-05-03
DHK361 DHL Air 4 2026-05-03
DHK842 DHL Air 3 2026-05-15
DHK820 DHL Air 3 2026-04-15
DHK815 DHL Air 3 2026-05-01
DHK800 DHL Air 3 2026-05-10
DHK2507 DHL Air 3 2026-05-15
DHK2506 DHL Air 3 2026-05-15
DHK855 DHL Air 2 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 DHK811 LEJ → BAH May 29, 22:35 UTCMay 30, 00:00 UTC1h 25m
2026-05-29 DHK4SM LEJ → EMA May 29, 01:35 UTCMay 29, 03:00 UTC1h 25m
2026-05-28 DHK7LK EMA → LEJ May 28, 22:20 UTCMay 28, 23:50 UTC1h 30m
2026-05-28 - - May 28, 19:25 UTCMay 28, 20:05 UTC40m
2026-05-28 - EMA → BFS May 28, 05:35 UTCMay 28, 06:15 UTC40m
2026-05-28 DHK4AW LEJ → EMA May 28, 00:10 UTCMay 28, 01:35 UTC1h 25m
2026-05-27 DHK56W EMA → LEJ May 27, 19:30 UTCMay 27, 20:55 UTC1h 25m
2026-05-27 DHK367 JFK → EMA May 27, 11:05 UTCMay 27, 17:35 UTC6h 30m
2026-05-27 DHK366 EMA → JFK May 27, 01:24 UTCMay 27, 08:20 UTC6h 56m
2026-05-26 DHK037 - May 26, 22:15 UTCMay 26, 22:59 UTC45m
2026-05-25 DHK037 - May 25, 15:35 UTCMay 26, 05:59 UTC14h 25m
2026-05-25 DHK037 - May 25, 03:15 UTCMay 26, 02:44 UTC23h 30m
2026-05-25 DHK038 - May 25, 02:00 UTCMay 25, 15:50 UTC13h 50m
2026-05-24 DHK038 - May 24, 20:05 UTCMay 25, 15:50 UTC19h 45m
2026-05-24 DHK038 - May 24, 17:30 UTCMay 25, 15:50 UTC22h 20m
2026-05-24 DHK038 - May 24, 14:00 UTCMay 25, 03:25 UTC13h 25m
2026-05-24 DHK846 BRU → EMA May 24, 03:15 UTCMay 24, 10:50 UTC7h 35m
2026-05-23 DHK855 MXP → CVG May 23, 08:35 UTCMay 23, 17:55 UTC9h 20m
2026-05-23 DHK855 MXP → CVG May 23, 01:55 UTCMay 23, 03:30 UTC1h 34m
2026-05-22 DHK452 BRU → EMA May 22, 22:30 UTCMay 22, 23:15 UTC45m
2026-05-21 DHK035 LEJ → EMA May 21, 15:20 UTCMay 22, 05:55 UTC14h 35m
2026-05-20 DHK036 EMA → ALA May 20, 19:05 UTCMay 21, 15:45 UTC20h 40m
2026-05-20 DHK036 EMA → ALA May 20, 17:05 UTCMay 21, 15:45 UTC22h 40m
2026-05-20 DHK036 EMA → ALA May 20, 06:55 UTCMay 20, 19:45 UTC12h 50m
2026-05-19 - EMA → BRU May 19, 19:15 UTCMay 19, 20:10 UTC55m
2026-05-18 DHK373 ATL → EMA May 18, 22:05 UTCMay 18, 22:50 UTC45m
2026-05-18 DHK373 ATL → EMA May 18, 11:45 UTCMay 18, 19:30 UTC7h 44m
2026-05-17 DHK817 EMA → LEJ May 17, 08:35 UTCMay 17, 17:30 UTC8h 55m
2026-05-17 DHK817 EMA → LEJ May 17, 02:00 UTCMay 17, 03:20 UTC1h 20m
2026-05-16 DHK387 MIA → EMA May 16, 16:40 UTCMay 16, 23:30 UTC6h 50m
2026-05-16 DHK376 LHR → CVG May 16, 04:15 UTCMay 16, 13:15 UTC9h 1m
2026-05-15 DHK376 LHR → CVG May 15, 22:35 UTCMay 16, 00:00 UTC1h 25m
2026-05-15 DHK2507 BFS → EMA May 15, 19:10 UTCMay 15, 19:55 UTC45m
2026-05-15 DHK2506 EMA → BFS May 15, 04:20 UTCMay 15, 05:00 UTC40m
2026-05-15 DHK842 BRU → EMA May 15, 01:00 UTCMay 15, 01:45 UTC45m
2026-05-14 DHK891 LEJ → EMA May 14, 22:25 UTCMay 14, 23:15 UTC50m
2026-05-14 DHK2507 BFS → EMA May 14, 19:30 UTCMay 14, 20:15 UTC45m
2026-05-14 DHK2506 EMA → BFS May 14, 04:30 UTCMay 14, 05:10 UTC40m
2026-05-13 DHK3999 KEF → EMA May 13, 17:10 UTCMay 13, 19:10 UTC2h 0m
2026-05-13 DHK3998 LEJ → KEF May 13, 04:55 UTCMay 13, 07:30 UTC2h 35m
2026-05-13 DHK4SM LEJ → EMA May 13, 02:00 UTCMay 13, 03:25 UTC1h 25m
2026-05-12 DHK7LK EMA → LEJ May 12, 21:50 UTCMay 12, 23:10 UTC1h 20m
2026-05-12 DHK369 CVG → LEJ May 12, 10:50 UTCMay 12, 16:50 UTC6h 0m
2026-05-12 DHK368 EMA → CVG May 12, 06:40 UTCMay 12, 08:45 UTC2h 5m
2026-05-11 DHK2507 BFS → EMA May 11, 19:25 UTCMay 11, 20:05 UTC40m
2026-05-11 DHK2506 EMA → BFS May 11, 02:40 UTCMay 11, 03:25 UTC45m
2026-05-10 DHK802 LEJ → CGN May 10, 20:54 UTCMay 10, 22:25 UTC1h 30m
2026-05-10 DHK800 LEJ → EMA May 10, 16:44 UTCMay 10, 17:59 UTC1h 15m
2026-05-10 DHK872 CVG → EMA May 10, 03:14 UTCMay 10, 10:30 UTC7h 15m
2026-05-09 DHK817 EMA → LEJ May 9, 13:00 UTCMay 9, 22:10 UTC9h 10m

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

Mode-S 4067A4 frequently asked

What is Mode-S code 4067A4?
4067A4 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-DHLK.
Where is Mode-S 4067A4 registered?
Mode-S code 4067A4 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 4067A4 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4067A4, octal 20063644, decimal 4,220,836.
What flights does 4067A4 operate?
Mode-S 4067A4 has broadcast 20 distinct callsigns, including DHK817, DHK038, DHK036, DHK035, DHK3999.