Apparatus

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sensors Mode-S transponder

406B6C

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
406B6C
Octal
20065554
Decimal
4,221,804
Country
GB
Tail
G-LCYS
Type
E190
No current signal · last broadcast Jul 26, 15:15 UTC
Flights observed
494
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 15:15 UTC

Last known position

Most recent position reported by Mode-S 406B6C.

Country allocation

The ICAO 24-bit address 406B6C 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
CFE80NJ - 9 2026-07-22
CFE56D BA CityFlyer 9 2026-07-22
CFE7026 - 8 2026-07-20
CFE36P - 8 2026-06-24
CFE17Z - 8 2026-07-11
CFE736 - 7 2026-07-11
CFE36A BA CityFlyer 7 2026-06-15
CFE322 - 7 2026-07-26
CFE27PM - 7 2026-07-20
CFE95E BA CityFlyer 6 2026-07-21
CFE78PG - 6 2026-07-14
CFE787 - 6 2026-07-02
CFE74H - 6 2026-07-16
CFE728 - 6 2026-06-15
CFE6Z - 6 2026-07-02
CFE6LJ BA CityFlyer 6 2026-07-21
CFE664 BA CityFlyer 6 2026-07-24
CFE5C - 6 2026-07-16
CFE39R BA CityFlyer 6 2026-07-24
CFE93AU - 5 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CFE322 GLA → GLA Jul 26, 14:45 UTCJul 26, 15:10 UTC25m
2026-07-26 CFE4542 - Jul 26, 10:30 UTCJul 26, 13:25 UTC2h 55m
2026-07-26 CFE4541 GLA → PMI Jul 26, 06:25 UTCJul 26, 08:50 UTC2h 26m
2026-07-25 CFE91G MAH → GLA Jul 25, 18:25 UTCJul 25, 21:10 UTC2h 45m
2026-07-25 CFE39VX GLA → MAH Jul 25, 14:25 UTCJul 25, 16:55 UTC2h 30m
2026-07-25 CFE4544 BLQ → GLA Jul 25, 10:10 UTCJul 25, 12:35 UTC2h 25m
2026-07-25 CFE29RA GLA → BLQ Jul 25, 06:15 UTCJul 25, 08:30 UTC2h 15m
2026-07-24 CFE8740 LCY → GLA Jul 24, 19:45 UTCJul 24, 20:45 UTC1h 0m
2026-07-24 CFE7336 SPU → LCY Jul 24, 16:35 UTCJul 24, 18:40 UTC2h 5m
2026-07-24 CFE31FP LCY → SPU Jul 24, 13:15 UTCJul 24, 15:00 UTC1h 45m
2026-07-24 CFE39R NCE → LCY Jul 24, 10:55 UTCJul 24, 12:25 UTC1h 30m
2026-07-24 CFE664 LPL → JER Jul 24, 07:55 UTCJul 24, 09:35 UTC1h 40m
2026-07-24 CFE19F AMS → LCY Jul 24, 05:55 UTCJul 24, 06:35 UTC40m
2026-07-23 CFE779 FMN → FLG Jul 23, 18:15 UTCJul 23, 19:00 UTC45m
2026-07-23 CFE6CP AMS → LCY Jul 23, 16:35 UTCJul 23, 17:10 UTC35m
2026-07-23 CFE33V LCY → AMS Jul 23, 14:45 UTCJul 23, 15:30 UTC45m
2026-07-23 CFE96V IBZ → LCY Jul 23, 10:55 UTCJul 23, 13:00 UTC2h 5m
2026-07-23 CFE63BB LCY → IBZ Jul 23, 07:45 UTCJul 23, 09:45 UTC2h 0m
2026-07-22 CFE2L EDI → LCY Jul 22, 18:20 UTCJul 22, 19:15 UTC55m
2026-07-22 CFE8712 LCY → EDI Jul 22, 16:30 UTCJul 22, 17:30 UTC1h 0m
2026-07-22 CFE80NJ - Jul 22, 13:30 UTCJul 22, 15:20 UTC1h 50m
2026-07-22 CFE56D LCY → FLR Jul 22, 11:10 UTCJul 22, 12:30 UTC1h 20m
2026-07-21 CFE557 LCY → LCY Jul 21, 19:25 UTCJul 21, 20:25 UTC1h 0m
2026-07-21 CFE37E LCY → DUB Jul 21, 17:25 UTCJul 21, 18:20 UTC55m
2026-07-21 CFE6LJ DUB → LCY Jul 21, 15:20 UTCJul 21, 16:25 UTC1h 5m
2026-07-21 CFE95E LCY → DUB Jul 21, 13:15 UTCJul 21, 14:10 UTC55m
2026-07-21 CFE48A PMI → LCY Jul 21, 10:15 UTCJul 21, 12:25 UTC2h 10m
2026-07-21 CFE79SC LCY → PMI Jul 21, 06:35 UTCJul 21, 08:50 UTC2h 15m
2026-07-20 CFE322 GLA → LCY Jul 20, 18:20 UTCJul 20, 19:25 UTC1h 5m
2026-07-20 CFE8724 LCY → GLA Jul 20, 16:35 UTCJul 20, 17:35 UTC1h 0m
2026-07-20 CFE7026 - Jul 20, 12:50 UTCJul 20, 14:20 UTC1h 30m
2026-07-20 CFE27PM - Jul 20, 10:05 UTCJul 20, 11:25 UTC1h 20m
2026-07-20 CFE96A AMS → LCY Jul 20, 08:10 UTCJul 20, 08:50 UTC40m
2026-07-20 CFE584 LCY → AMS Jul 20, 06:15 UTCJul 20, 07:00 UTC45m
2026-07-19 CFE4459 RTM → LCY Jul 19, 19:35 UTCJul 19, 20:15 UTC40m
2026-07-19 CFE705 - Jul 19, 17:45 UTCJul 19, 18:25 UTC40m
2026-07-19 CFE61X - Jul 19, 15:00 UTCJul 19, 16:30 UTC1h 30m
2026-07-19 CFE93AU LCY → BER Jul 19, 12:40 UTCJul 19, 14:05 UTC1h 25m
2026-07-19 CFE7028 BER → LCY Jul 19, 08:55 UTCJul 19, 11:35 UTC2h 40m
2026-07-18 CFE43K JER → FAO Jul 18, 14:35 UTCJul 18, 16:50 UTC2h 15m
2026-07-18 CFE41L FAO → JER Jul 18, 11:30 UTCJul 18, 13:20 UTC1h 50m
2026-07-18 CFE7029 LCY → BER Jul 18, 07:25 UTCJul 18, 09:55 UTC2h 30m
2026-07-18 CFE8PR BER → LCY Jul 18, 04:40 UTCJul 18, 06:10 UTC1h 30m
2026-07-17 CFE8495 - Jul 17, 18:10 UTCJul 17, 19:30 UTC1h 20m
2026-07-17 CFE61X BER → LCY Jul 17, 15:29 UTCJul 17, 16:55 UTC1h 25m
2026-07-17 CFE93AU LCY → BER Jul 17, 13:00 UTCJul 17, 14:24 UTC1h 25m
2026-07-16 CFE322 GLA → LCY Jul 16, 18:19 UTCJul 16, 19:35 UTC1h 15m
2026-07-16 CFE8724 LCY → GLA Jul 16, 16:15 UTCJul 16, 17:10 UTC55m
2026-07-16 CFE1ZF GLA → LCY Jul 16, 14:05 UTCJul 16, 15:14 UTC1h 10m
2026-07-16 CFE389 LCY → GLA Jul 16, 11:54 UTCJul 16, 12:55 UTC1h 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-LCYS page for operator, model, and routing details .

Mode-S 406B6C frequently asked

What is Mode-S code 406B6C?
406B6C is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-LCYS.
Where is Mode-S 406B6C registered?
Mode-S code 406B6C 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 406B6C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 15:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 406B6C, octal 20065554, decimal 4,221,804.
What flights does 406B6C operate?
Mode-S 406B6C has broadcast 20 distinct callsigns, including CFE80NJ, CFE56D, CFE7026, CFE36P, CFE17Z.