sensors Mode-S transponder

407EB5

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
407EB5
Octal
20077265
Decimal
4,226,741
Country
GB
Tail
G-DHLV
Type
B77L
Transponder active on ground
Flights observed
6
Distinct callsigns
2
Country
GB
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 407EB5.

Country allocation

The ICAO 24-bit address 407EB5 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 2 distinct

Callsign Airline Flights Last seen
DHK016 - 4 2026-04-13
DHK593 - 2 2026-04-14

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 DHK593 - Apr 14, 07:25 UTCApr 14, 07:50 UTC25m
2026-04-13 DHK593 - Apr 13, 23:05 UTCApr 13, 23:15 UTC10m
2026-04-13 DHK016 - Apr 13, 14:00 UTCApr 13, 14:30 UTC30m
2026-04-13 DHK016 - Apr 13, 04:20 UTCApr 13, 06:55 UTC2h 35m
2026-04-13 DHK016 - Apr 13, 03:55 UTCApr 13, 06:55 UTC3h 0m
2026-04-13 DHK016 - Apr 13, 02:15 UTCApr 13, 04:15 UTC2h 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-DHLV page for operator, model, and routing details .

Mode-S 407EB5 frequently asked

What is Mode-S code 407EB5?
407EB5 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-DHLV.
Where is Mode-S 407EB5 registered?
Mode-S code 407EB5 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 407EB5 broadcasting right now?
Mode-S 407EB5 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 407EB5, octal 20077265, decimal 4,226,741.
What flights does 407EB5 operate?
Mode-S 407EB5 has broadcast 2 distinct callsigns, including DHK016, DHK593.