Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4063C3

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
4063C3
Octal
20061703
Decimal
4,219,843
Country
GB
Tail
G-LCYN
Type
E190
Broadcasting now · callsign CFE63BB · 37,000 ft
Flights observed
529
Distinct callsigns
20
Country
GB
Last broadcast
Jul 26, 21:50 UTC

Current position

4063C3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4063C3 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
CFE8720 BA CityFlyer 9 2026-07-24
CFE557 BA CityFlyer 9 2026-07-24
CFE14K BA CityFlyer 9 2026-07-24
CFE80NJ - 8 2026-07-21
CFE72JF BA CityFlyer 8 2026-07-20
CFE6LJ BA CityFlyer 8 2026-07-24
CFE6CP BA CityFlyer 8 2026-07-19
CFE603 BA CityFlyer 8 2026-07-20
CFE56D BA CityFlyer 8 2026-07-21
CFE37E BA CityFlyer 8 2026-07-24
CFE95E BA CityFlyer 7 2026-07-24
CFE8704 - 7 2026-07-07
CFE779 BA CityFlyer 7 2026-07-19
CFE62R - 7 2026-07-15
CFE53NR - 7 2026-07-15
CFE3271 - 7 2026-07-17
CFE221 BA CityFlyer 7 2026-07-23
CFE1LJ - 7 2026-07-16
CFE19F BA CityFlyer 7 2026-07-20
CFE92Q - 6 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CFE93G LCY → GLA Jul 26, 20:45 UTCJul 26, 21:45 UTC1h 0m
2026-07-26 CFE316 IBZ → LCY Jul 26, 17:10 UTCJul 26, 19:20 UTC2h 10m
2026-07-26 CFE7309 STN → IBZ Jul 26, 14:00 UTCJul 26, 16:05 UTC2h 5m
2026-07-26 CFE118 - Jul 26, 11:05 UTCJul 26, 13:00 UTC1h 55m
2026-07-26 CFE882 STN → CLY Jul 26, 07:40 UTCJul 26, 09:30 UTC1h 50m
2026-07-25 CFE8744 BER → LCY Jul 25, 15:50 UTCJul 25, 17:10 UTC1h 20m
2026-07-25 CFE8743 LCY → BER Jul 25, 13:20 UTCJul 25, 14:40 UTC1h 20m
2026-07-25 CFE88D NCE → STN Jul 25, 09:55 UTCJul 25, 11:55 UTC2h 0m
2026-07-25 CFE41R LCY → NCE Jul 25, 07:00 UTCJul 25, 08:40 UTC1h 40m
2026-07-24 CFE557 LCY → LCY Jul 24, 19:40 UTCJul 24, 20:40 UTC1h 0m
2026-07-24 CFE37E LCY → DUB Jul 24, 17:55 UTCJul 24, 18:50 UTC55m
2026-07-24 CFE6LJ DUB → LCY Jul 24, 15:40 UTCJul 24, 16:45 UTC1h 5m
2026-07-24 CFE95E LCY → DUB Jul 24, 13:30 UTCJul 24, 14:30 UTC1h 0m
2026-07-24 CFE14K GLA → LCY Jul 24, 11:35 UTCJul 24, 12:40 UTC1h 5m
2026-07-24 CFE8720 LCY → GLA Jul 24, 09:30 UTCJul 24, 10:35 UTC1h 5m
2026-07-24 CFE48D LCY → GLA Jul 24, 07:25 UTCJul 24, 08:25 UTC1h 0m
2026-07-23 CFE221 DUB → DUB Jul 23, 20:45 UTCJul 23, 21:40 UTC55m
2026-07-23 CFE88C AMS → LCY Jul 23, 19:25 UTCJul 23, 20:00 UTC35m
2026-07-23 CFE67W LCY → AMS Jul 23, 17:35 UTCJul 23, 18:15 UTC40m
2026-07-23 CFE657 LCY → RTM Jul 23, 14:25 UTCJul 23, 15:00 UTC35m
2026-07-23 CFE4454 LCY → RTM Jul 23, 12:50 UTCJul 23, 13:30 UTC40m
2026-07-23 CFE65GM NCE → LCY Jul 23, 10:15 UTCJul 23, 11:55 UTC1h 40m
2026-07-23 CFE41R LCY → NCE Jul 23, 06:30 UTCJul 23, 08:05 UTC1h 35m
2026-07-22 CFE9760 CWL → LGW Jul 22, 20:30 UTCJul 22, 21:20 UTC50m
2026-07-22 CFE8724 LCY → GLA Jul 22, 18:55 UTCJul 22, 19:55 UTC1h 0m
2026-07-22 CFE1ZF GLA → LCY Jul 22, 16:00 UTCJul 22, 17:15 UTC1h 15m
2026-07-22 CFE389 LCY → GLA Jul 22, 12:50 UTCJul 22, 13:50 UTC1h 0m
2026-07-22 CFE6MW - Jul 22, 11:10 UTCJul 22, 11:40 UTC30m
2026-07-21 CFE221 DUB → DUB Jul 21, 19:45 UTCJul 21, 20:40 UTC55m
2026-07-21 CFE88C AMS → LCY Jul 21, 18:05 UTCJul 21, 18:45 UTC40m
2026-07-21 CFE67W LCY → AMS Jul 21, 16:20 UTCJul 21, 17:05 UTC45m
2026-07-21 CFE80NJ - Jul 21, 13:35 UTCJul 21, 15:30 UTC1h 55m
2026-07-21 CFE56D LCY → FLR Jul 21, 10:35 UTCJul 21, 12:25 UTC1h 50m
2026-07-21 CFE33T ZRH → LCY Jul 21, 08:20 UTCJul 21, 09:40 UTC1h 20m
2026-07-21 CFE31L LCY → ZRH Jul 21, 06:05 UTCJul 21, 07:15 UTC1h 10m
2026-07-20 CFE80NJ - Jul 20, 17:40 UTCJul 20, 19:35 UTC1h 55m
2026-07-20 CFE56D LCY → FLR Jul 20, 14:30 UTCJul 20, 16:30 UTC2h 0m
2026-07-20 CFE72JF FLR → LCY Jul 20, 11:30 UTCJul 20, 13:20 UTC1h 50m
2026-07-20 CFE603 SEN → JER Jul 20, 08:15 UTCJul 20, 10:15 UTC2h 0m
2026-07-20 CFE19F AMS → LCY Jul 20, 05:55 UTCJul 20, 06:35 UTC40m
2026-07-19 CFE779 FMN → FLG Jul 19, 18:10 UTCJul 19, 18:55 UTC45m
2026-07-19 CFE6CP AMS → LCY Jul 19, 16:40 UTCJul 19, 17:20 UTC40m
2026-07-19 CFE33V LCY → AMS Jul 19, 14:45 UTCJul 19, 15:25 UTC40m
2026-07-18 CFE72JF FLR → LCY Jul 18, 09:15 UTCJul 18, 11:05 UTC1h 50m
2026-07-18 CFE603 LCY → FLR Jul 18, 06:15 UTCJul 18, 07:55 UTC1h 40m
2026-07-17 CFE86WF PMI → LCY Jul 17, 17:20 UTCJul 17, 19:25 UTC2h 5m
2026-07-17 CFE85XP LCY → PMI Jul 17, 14:10 UTCJul 17, 16:10 UTC2h 0m
2026-07-17 CFE7026 BER → LCY Jul 17, 11:35 UTCJul 17, 13:00 UTC1h 25m
2026-07-17 CFE27PM - Jul 17, 09:15 UTCJul 17, 10:35 UTC1h 20m
2026-07-17 CFE3271 - Jul 17, 06:15 UTCJul 17, 08:04 UTC1h 50m

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

Mode-S 4063C3 frequently asked

What is Mode-S code 4063C3?
4063C3 is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-LCYN.
Where is Mode-S 4063C3 registered?
Mode-S code 4063C3 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 4063C3 broadcasting right now?
Yes. Mode-S 4063C3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4063C3, octal 20061703, decimal 4,219,843.
What flights does 4063C3 operate?
Mode-S 4063C3 has broadcast 20 distinct callsigns, including CFE8720, CFE557, CFE14K, CFE80NJ, CFE72JF.