Apparatus

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sensors Mode-S transponder

400BE5

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-MEDK · AIRBUS A-320

Hex
400BE5
Octal
20005745
Decimal
4,197,349
Country
GB
Tail
G-MEDK
Type
A320
Broadcasting now · callsign EFW878W · 37,025 ft
Flights observed
148
Distinct callsigns
20
Country
GB
Last broadcast
1h ago

Current position

400BE5 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 400BE5 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
EFW75H BA Euroflyer 6 2026-05-06
EFW3TW BA Euroflyer 6 2026-05-06
EFW73AW BA Euroflyer 5 2026-05-29
EFW193M BA Euroflyer 5 2026-05-29
EFW88UA BA Euroflyer 4 2026-05-30
EFW79YW BA Euroflyer 4 2026-05-26
EFW64C BA Euroflyer 4 2026-05-11
EFW62ME BA Euroflyer 4 2026-05-26
EFW5QQ - 4 2026-06-03
EFW3XB BA Euroflyer 4 2026-05-30
EFW2BZ BA Euroflyer 4 2026-05-11
EFW34VK - 3 2026-06-03
EFW17EA BA Euroflyer 3 2026-05-22
EFW16EA BA Euroflyer 3 2026-05-22
EFW91P BA Euroflyer 2 2026-05-24
EFW8DD BA Euroflyer 2 2026-05-21
EFW89WH BA Euroflyer 2 2026-05-17
EFW7SN BA Euroflyer 2 2026-05-14
EFW7JD BA Euroflyer 2 2026-06-01
EFW7EL BA Euroflyer 2 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-04 EFW12LS MLA → LGW Jun 4, 11:00 UTCJun 4, 14:05 UTC3h 5m
2026-06-04 EFW9RZ LGW → MLA Jun 4, 06:35 UTCJun 4, 09:05 UTC2h 30m
2026-06-03 EFW34VK - Jun 3, 10:35 UTCJun 3, 13:10 UTC2h 35m
2026-06-03 EFW5QQ - Jun 3, 07:10 UTCJun 3, 09:20 UTC2h 10m
2026-06-02 EFW62T TRN → LGW Jun 2, 21:35 UTCJun 2, 23:10 UTC1h 35m
2026-06-02 EFW4SS LGW → TRN Jun 2, 18:10 UTCJun 2, 19:35 UTC1h 25m
2026-06-02 EFW75J DBV → LGW Jun 2, 13:30 UTCJun 2, 16:10 UTC2h 40m
2026-06-02 EFW34BY LGW → DBV Jun 2, 09:45 UTCJun 2, 12:05 UTC2h 20m
2026-06-01 EFW7JD AGP → LGW Jun 1, 18:05 UTCJun 1, 19:55 UTC1h 50m
2026-06-01 EFW7EL LGW → PMI Jun 1, 15:10 UTCJun 1, 16:55 UTC1h 45m
2026-06-01 EFW5SL OPO → LGW Jun 1, 11:40 UTCJun 1, 13:35 UTC1h 55m
2026-06-01 EFW461M LGW → OPO Jun 1, 08:05 UTCJun 1, 10:00 UTC1h 55m
2026-05-31 EFW5BR JER → LGW May 31, 20:10 UTCMay 31, 20:40 UTC30m
2026-05-31 EFW56R LGW → JER May 31, 18:15 UTCMay 31, 18:50 UTC35m
2026-05-31 EFW6DG LCA → LGW May 31, 12:00 UTCMay 31, 16:30 UTC4h 30m
2026-05-31 EFW24AD LGW → LCA May 31, 08:25 UTCMay 31, 10:45 UTC2h 20m
2026-05-30 EFW10CC SZG → LGW May 30, 19:30 UTCMay 30, 21:10 UTC1h 40m
2026-05-30 EFW6JW LGW → SZG May 30, 16:50 UTCMay 30, 18:20 UTC1h 30m
2026-05-30 EFW3XB AGP → LGW May 30, 12:45 UTCMay 30, 15:10 UTC2h 25m
2026-05-30 EFW88UA LGW → AGP May 30, 09:00 UTCMay 30, 11:15 UTC2h 15m
2026-05-29 EFW193M CTA → LGW May 29, 17:00 UTCMay 29, 19:40 UTC2h 40m
2026-05-29 EFW73AW LGW → CTA May 29, 13:00 UTCMay 29, 15:30 UTC2h 30m
2026-05-29 EFW29BA MAH → LGW May 29, 09:35 UTCMay 29, 11:40 UTC2h 5m
2026-05-29 EFW39VE LGW → MAH May 29, 06:05 UTCMay 29, 07:45 UTC1h 40m
2026-05-28 BAW2817 LHR → MAH May 28, 20:10 UTCMay 28, 22:20 UTC2h 10m
2026-05-28 BAW2816 LGW → ALG May 28, 16:25 UTCMay 28, 18:20 UTC1h 55m
2026-05-28 EFW337J NCE → LGW May 28, 13:15 UTCMay 28, 15:05 UTC1h 50m
2026-05-28 EFW16HC LGW → NCE May 28, 09:50 UTCMay 28, 11:15 UTC1h 25m
2026-05-27 EFW3MG SVQ → LGW May 27, 20:25 UTCMay 27, 22:35 UTC2h 10m
2026-05-27 EFW22D LGW → SVQ May 27, 17:00 UTCMay 27, 19:20 UTC2h 20m
2026-05-27 EFW75J DBV → LGW May 27, 12:15 UTCMay 27, 14:40 UTC2h 25m
2026-05-27 EFW34BY LGW → DBV May 27, 08:40 UTCMay 27, 10:50 UTC2h 10m
2026-05-26 EFW2FC RAK → LGW May 26, 18:55 UTCMay 26, 21:34 UTC2h 40m
2026-05-26 EFW4LY LGW → RAK May 26, 14:14 UTCMay 26, 17:05 UTC2h 50m
2026-05-26 EFW62ME IBZ → LGW May 26, 10:29 UTCMay 26, 12:24 UTC1h 55m
2026-05-26 EFW79YW LGW → IBZ May 26, 07:10 UTCMay 26, 09:15 UTC2h 5m
2026-05-25 EFW5BR JER → LGW May 25, 19:00 UTCMay 25, 19:30 UTC29m
2026-05-25 EFW56R LGW → JER May 25, 17:25 UTCMay 25, 18:00 UTC35m
2026-05-25 EFW53CV TFS → LGW May 25, 12:10 UTCMay 25, 15:45 UTC3h 35m
2026-05-25 EFW29CF LGW → TFS May 25, 07:00 UTCMay 25, 10:30 UTC3h 30m
2026-05-24 EFW91P DLM → LGW May 24, 10:35 UTCMay 24, 14:30 UTC3h 55m
2026-05-24 EFW76D LGW → DLM May 24, 05:40 UTCMay 24, 09:05 UTC3h 25m
2026-05-23 EFW3XB AGP → LGW May 23, 14:45 UTCMay 23, 17:05 UTC2h 20m
2026-05-23 EFW88UA LGW → AGP May 23, 10:05 UTCMay 23, 12:25 UTC2h 20m
2026-05-22 EFW17EA MLA → LGW May 22, 17:35 UTCMay 22, 20:30 UTC2h 55m
2026-05-22 EFW16EA LGW → MLA May 22, 13:40 UTCMay 22, 16:25 UTC2h 45m
2026-05-22 EFW23SM PMI → LGW May 22, 09:40 UTCMay 22, 11:45 UTC2h 5m
2026-05-22 EFW74JG LGW → PMI May 22, 06:25 UTCMay 22, 08:10 UTC1h 45m
2026-05-21 EFW979Y KLX → LGW May 21, 17:05 UTCMay 21, 20:15 UTC3h 10m
2026-05-21 EFW39YP LGW → KLX May 21, 12:35 UTCMay 21, 15:35 UTC3h 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-MEDK page for operator, model, and routing details .

Mode-S 400BE5 frequently asked

What is Mode-S code 400BE5?
400BE5 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-MEDK.
Where is Mode-S 400BE5 registered?
Mode-S code 400BE5 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 400BE5 broadcasting right now?
Yes. Mode-S 400BE5 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 400BE5, octal 20005745, decimal 4,197,349.
What flights does 400BE5 operate?
Mode-S 400BE5 has broadcast 20 distinct callsigns, including EFW75H, EFW3TW, EFW73AW, EFW193M, EFW88UA.