Apparatus

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sensors Mode-S transponder

407CF7

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-DHLX · BOEING 777-200LR

Hex
407CF7
Octal
20076367
Decimal
4,226,295
Country
GB
Tail
G-DHLX
Type
B77L
No current signal · last broadcast 8h ago
Flights observed
232
Distinct callsigns
20
Country
GB
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 407CF7.

Country allocation

The ICAO 24-bit address 407CF7 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
DHK051 - 36 2026-07-04
DHK052 - 26 2026-07-03
DHK597 - 24 2026-07-06
DHK591 - 20 2026-07-10
DHK054 - 17 2026-07-11
DHK053 - 16 2026-07-12
DHK524 - 15 2026-06-18
DHK009 - 12 2026-07-07
DHK703 - 11 2026-07-09
DHK055 - 8 2026-06-20
DHK056 - 6 2026-06-20
DHK705 DHL Air 4 2026-06-04
DHK593 DHL Air 3 2026-05-09
DHK511 DHL Air 3 2026-05-17
DHK076 - 3 2026-06-26
DHK058 DHL Air 3 2026-06-05
DHK057 DHL Air 3 2026-06-05
DHK864 - 2 2026-06-28
DHK801 DHL Air 2 2026-06-14
DHK540 - 2 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DHK027P - Jul 13, 21:45 UTCJul 14, 00:50 UTC3h 5m
2026-07-13 DHK819 - Jul 13, 11:10 UTCJul 13, 19:35 UTC8h 25m
2026-07-12 DHK053 - Jul 12, 21:40 UTCJul 13, 08:40 UTC11h 0m
2026-07-11 DHK054 - Jul 11, 05:05 UTCJul 11, 08:55 UTC3h 50m
2026-07-10 DHK054 EMA → BRU Jul 10, 21:30 UTCJul 10, 22:20 UTC50m
2026-07-10 DHK591 - Jul 10, 07:10 UTCJul 10, 16:10 UTC9h 0m
2026-07-10 DHK591 - Jul 10, 00:05 UTCJul 10, 03:45 UTC3h 40m
2026-07-09 DHK591 - Jul 9, 22:50 UTCJul 9, 23:05 UTC15m
2026-07-09 DHK703 - Jul 9, 18:10 UTCJul 9, 18:35 UTC25m
2026-07-09 DHK703 - Jul 9, 12:30 UTCJul 9, 16:10 UTC3h 40m
2026-07-09 DHK703 - Jul 9, 10:40 UTCJul 9, 11:35 UTC55m
2026-07-09 DHK863 - Jul 9, 01:30 UTCJul 9, 07:50 UTC6h 20m
2026-07-08 DHK703 - Jul 8, 09:55 UTCJul 8, 17:10 UTC7h 15m
2026-07-07 DHK009 HKG → CVG Jul 7, 14:55 UTCJul 8, 05:30 UTC14h 35m
2026-07-06 DHK597 - Jul 6, 13:20 UTCJul 6, 14:00 UTC40m
2026-07-06 DHK597 - Jul 6, 05:55 UTCJul 6, 11:10 UTC5h 15m
2026-07-06 DHK597 - Jul 6, 01:00 UTCJul 6, 01:25 UTC25m
2026-07-05 DHK597 - Jul 5, 20:05 UTCJul 5, 23:50 UTC3h 45m
2026-07-05 DHK597 EMA → LEJ Jul 5, 10:05 UTCJul 5, 11:20 UTC1h 15m
2026-07-04 DHK051 - Jul 4, 12:05 UTCJul 4, 21:30 UTC9h 25m
2026-07-03 DHK051 - Jul 3, 23:40 UTCJul 4, 09:10 UTC9h 30m
2026-07-03 DHK052 - Jul 3, 05:10 UTCJul 3, 21:25 UTC16h 15m
2026-07-03 DHK052 EMA → BRU Jul 3, 01:20 UTCJul 3, 02:05 UTC45m
2026-07-02 DHK051 - Jul 2, 12:20 UTCJul 2, 21:25 UTC9h 5m
2026-07-01 DHK051 - Jul 1, 14:55 UTCJul 2, 06:41 UTC15h 46m
2026-07-01 DHK051 - Jul 1, 07:50 UTCJul 2, 06:41 UTC22h 51m
2026-07-01 DHK052 - Jul 1, 05:50 UTCJul 2, 05:45 UTC23h 55m
2026-07-01 DHK052 - Jul 1, 05:10 UTCJul 1, 21:50 UTC16h 40m
2026-07-01 DHK052 EMA → BRU Jul 1, 01:15 UTCJul 1, 02:05 UTC50m
2026-06-30 DHK051 - Jun 30, 12:15 UTCJun 30, 21:30 UTC9h 15m
2026-06-29 DHK051 - Jun 29, 15:04 UTCJun 30, 06:30 UTC15h 26m
2026-06-29 DHK051 - Jun 29, 07:50 UTCJun 30, 06:30 UTC22h 41m
2026-06-29 DHK052 - Jun 29, 05:50 UTCJun 30, 05:45 UTC23h 55m
2026-06-29 DHK052 - Jun 29, 05:24 UTCJun 29, 21:54 UTC16h 30m
2026-06-28 DHK052 EMA → BRU Jun 28, 19:34 UTCJun 28, 20:25 UTC50m
2026-06-28 DHK452 - Jun 28, 15:24 UTCJun 28, 16:09 UTC45m
2026-06-28 DHK841 - Jun 28, 11:39 UTCJun 28, 12:29 UTC50m
2026-06-28 DHK864 - Jun 28, 01:04 UTCJun 28, 05:45 UTC4h 40m
2026-06-27 DHK864 - Jun 27, 23:14 UTCJun 27, 23:25 UTC10m
2026-06-27 DHK075 - Jun 27, 01:49 UTCJun 27, 21:29 UTC19h 40m
2026-06-26 DHK076 - Jun 26, 22:05 UTCJun 26, 22:19 UTC15m
2026-06-26 DHK076 - Jun 26, 09:55 UTCJun 26, 20:29 UTC10h 35m
2026-06-25 DHK009 - Jun 25, 15:40 UTCJun 26, 04:59 UTC13h 20m
2026-06-25 DHK009 - Jun 25, 14:39 UTCJun 25, 14:55 UTC15m
2026-06-25 DHK703 - Jun 25, 11:25 UTCJun 25, 11:50 UTC25m
2026-06-25 DHK703 - Jun 25, 03:44 UTCJun 25, 10:25 UTC6h 40m
2026-06-24 DHK703 - Jun 24, 22:39 UTCJun 24, 23:04 UTC25m
2026-06-24 DHK703 - Jun 24, 10:04 UTCJun 24, 20:40 UTC10h 35m
2026-06-23 DHK009 - Jun 23, 14:19 UTCJun 24, 04:34 UTC14h 15m
2026-06-23 DHK597 - Jun 23, 01:25 UTCJun 23, 01:59 UTC35m

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

Mode-S 407CF7 frequently asked

What is Mode-S code 407CF7?
407CF7 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-DHLX.
Where is Mode-S 407CF7 registered?
Mode-S code 407CF7 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 407CF7 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407CF7, octal 20076367, decimal 4,226,295.
What flights does 407CF7 operate?
Mode-S 407CF7 has broadcast 20 distinct callsigns, including DHK051, DHK052, DHK597, DHK591, DHK054.