Apparatus

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sensors Mode-S transponder

4079D2

ICAO 24-bit transponder address · allocated to United Kingdom

Currently assigned to G-LCAG · EMBRAER ERJ-190-100

Hex
4079D2
Octal
20074722
Decimal
4,225,490
Country
GB
Tail
G-LCAG
Type
E190
Broadcasting now · callsign CFE979 · 10,500 ft
Flights observed
229
Distinct callsigns
20
Country
GB
Last broadcast
6m ago

Current position

4079D2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4079D2 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
CFE772 BA CityFlyer 5 2026-05-28
CFE92Q BA CityFlyer 4 2026-05-08
CFE844 BA CityFlyer 4 2026-05-04
CFE801 - 4 2026-05-08
CFE75J BA CityFlyer 4 2026-06-05
CFE728 - 4 2026-05-28
CFE36Y BA CityFlyer 4 2026-05-04
CFE36A BA CityFlyer 4 2026-05-28
CFE11L BA CityFlyer 4 2026-06-05
CFE9TB BA CityFlyer 3 2026-06-05
CFE93AU BA CityFlyer 3 2026-06-03
CFE909 - 3 2026-05-29
CFE8PR BA CityFlyer 3 2026-06-04
CFE8704 BA CityFlyer 3 2026-06-02
CFE8495 BA CityFlyer 3 2026-06-03
CFE79SC BA CityFlyer 3 2026-06-06
CFE78PG BA CityFlyer 3 2026-05-31
CFE76JZ BA CityFlyer 3 2026-06-04
CFE72AN BA CityFlyer 3 2026-05-27
CFE7026 BA CityFlyer 3 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-07 CFE979 PMI → LCY Jun 7, 10:55 UTCJun 7, 12:30 UTC1h 35m
2026-06-06 CFE703R JER → PMI Jun 6, 13:34 UTCJun 6, 15:10 UTC1h 35m
2026-06-06 CFE382 - Jun 6, 10:39 UTCJun 6, 12:14 UTC1h 35m
2026-06-06 CFE79SC LCY → PMI Jun 6, 07:05 UTCJun 6, 09:04 UTC2h 0m
2026-06-05 CFE75J DUS → LCY Jun 5, 18:45 UTCJun 5, 20:00 UTC1h 15m
2026-06-05 CFE11L LCY → ZRH Jun 5, 16:40 UTCJun 5, 17:50 UTC1h 10m
2026-06-05 CFE65GM NCE → LCY Jun 5, 14:05 UTCJun 5, 15:45 UTC1h 40m
2026-06-05 CFE41R LCY → NCE Jun 5, 11:00 UTCJun 5, 12:40 UTC1h 40m
2026-06-05 CFE48D LCY → GLA Jun 5, 08:10 UTCJun 5, 09:10 UTC1h 0m
2026-06-05 CFE9TB LCY → DUB Jun 5, 06:10 UTCJun 5, 07:10 UTC1h 0m
2026-06-04 CFE98MN NCE → LCY Jun 4, 16:05 UTCJun 4, 17:35 UTC1h 30m
2026-06-04 CFE3299 LCY → NCE Jun 4, 13:15 UTCJun 4, 14:55 UTC1h 40m
2026-06-04 CFE34E BER → LCY Jun 4, 09:50 UTCJun 4, 11:40 UTC1h 50m
2026-06-04 CFE76JZ LCY → BER Jun 4, 07:35 UTCJun 4, 08:55 UTC1h 20m
2026-06-04 CFE8PR BER → LCY Jun 4, 05:05 UTCJun 4, 06:35 UTC1h 30m
2026-06-03 CFE8495 LCY → BER Jun 3, 17:40 UTCJun 3, 19:05 UTC1h 25m
2026-06-03 CFE61X BER → LCY Jun 3, 15:15 UTCJun 3, 16:45 UTC1h 30m
2026-06-03 CFE93AU LCY → BER Jun 3, 12:55 UTCJun 3, 14:20 UTC1h 25m
2026-06-03 CFE8732 GLA → LCY Jun 3, 10:55 UTCJun 3, 12:00 UTC1h 5m
2026-06-03 CFE326 NCL → LGW Jun 3, 08:50 UTCJun 3, 09:45 UTC55m
2026-06-03 CFE502 EDI → LCY Jun 3, 06:40 UTCJun 3, 07:50 UTC1h 10m
2026-06-02 CFE12V EAS → EDI Jun 2, 16:30 UTCJun 2, 18:30 UTC2h 0m
2026-06-02 CFE2919 EDI → EAS Jun 2, 13:30 UTCJun 2, 15:20 UTC1h 50m
2026-06-02 CFE8704 LCY → EDI Jun 2, 11:25 UTCJun 2, 12:20 UTC55m
2026-06-02 CFE33T ZRH → LCY Jun 2, 08:55 UTCJun 2, 10:15 UTC1h 20m
2026-06-02 CFE31L LCY → ZRH Jun 2, 06:15 UTCJun 2, 07:30 UTC1h 15m
2026-06-01 CFE86WF PMI → LCY Jun 1, 18:20 UTCJun 1, 20:20 UTC2h 0m
2026-06-01 CFE85XP LCY → PMI Jun 1, 14:55 UTCJun 1, 16:55 UTC2h 0m
2026-06-01 CFE68E EAS → LCY Jun 1, 12:15 UTCJun 1, 13:35 UTC1h 20m
2026-06-01 CFE35L LCY → EAS Jun 1, 09:50 UTCJun 1, 11:10 UTC1h 20m
2026-06-01 CFE502 EDI → LCY Jun 1, 06:35 UTCJun 1, 08:10 UTC1h 35m
2026-05-31 CFE78PG LCY → EDI May 31, 19:20 UTCMay 31, 20:25 UTC1h 5m
2026-05-31 CFE94Z FLR → LCY May 31, 16:40 UTCMay 31, 18:30 UTC1h 50m
2026-05-31 CFE82DC LCY → FLR May 31, 13:50 UTCMay 31, 15:25 UTC1h 35m
2026-05-31 CFE2935 SOU → CMF May 31, 09:45 UTCMay 31, 12:00 UTC2h 15m
2026-05-31 CFE2933 - May 31, 08:25 UTCMay 31, 08:35 UTC10m
2026-05-30 CFE92Y PMI → EDI May 30, 18:50 UTCMay 30, 21:30 UTC2h 40m
2026-05-30 CFE64G LCY → GLA May 30, 14:55 UTCMay 30, 17:30 UTC2h 35m
2026-05-29 CFE78PG LCY → EDI May 29, 19:15 UTCMay 29, 20:15 UTC1h 0m
2026-05-29 CFE69ZN GLA → LCY May 29, 16:50 UTCMay 29, 17:55 UTC1h 5m
2026-05-29 CFE31BZ LCY → GLA May 29, 14:40 UTCMay 29, 15:50 UTC1h 10m
2026-05-29 CFE11A EDI → LCY May 29, 12:40 UTCMay 29, 13:50 UTC1h 10m
2026-05-29 CFE8704 LCY → EDI May 29, 10:30 UTCMay 29, 11:30 UTC1h 0m
2026-05-29 CFE909 RTM → LCY May 29, 09:00 UTCMay 29, 09:40 UTC40m
2026-05-29 CFE4450 RTM → LCY May 29, 07:20 UTCMay 29, 08:00 UTC40m
2026-05-28 CFE322 GLA → LCY May 28, 19:30 UTCMay 28, 20:30 UTC1h 0m
2026-05-28 CFE8724 LCY → GLA May 28, 17:35 UTCMay 28, 18:30 UTC55m
2026-05-28 CFE36A LCY → AMS May 28, 14:50 UTCMay 28, 16:40 UTC1h 50m
2026-05-28 CFE728 - May 28, 08:55 UTCMay 28, 10:45 UTC1h 50m
2026-05-28 CFE772 LCY → GLA May 28, 06:45 UTCMay 28, 08:00 UTC1h 15m

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

Mode-S 4079D2 frequently asked

What is Mode-S code 4079D2?
4079D2 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-LCAG.
Where is Mode-S 4079D2 registered?
Mode-S code 4079D2 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 4079D2 broadcasting right now?
Yes. Mode-S 4079D2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4079D2, octal 20074722, decimal 4,225,490.
What flights does 4079D2 operate?
Mode-S 4079D2 has broadcast 20 distinct callsigns, including CFE772, CFE92Q, CFE844, CFE801, CFE75J.