Apparatus

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sensors Mode-S transponder

40676A

ICAO 24-bit transponder address · allocated to United Kingdom

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

Hex
40676A
Octal
20063552
Decimal
4,220,778
Country
GB
Tail
G-LCYR
Type
E190
Broadcasting now · callsign CFE39R · 10,100 ft
Flights observed
416
Distinct callsigns
20
Country
GB
Last broadcast
9d ago

Current position

40676A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 40676A 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
CFE664 BA CityFlyer 10 2026-07-23
CFE39R BA CityFlyer 10 2026-07-23
CFE8712 BA CityFlyer 7 2026-07-24
CFE779 - 7 2026-07-14
CFE19F - 7 2026-07-15
CFE79SC - 6 2026-07-19
CFE6CP - 6 2026-07-14
CFE48A BA CityFlyer 6 2026-07-22
CFE33V - 6 2026-07-14
CFE8759 - 5 2026-07-13
CFE8465 - 5 2026-07-11
CFE844 BA CityFlyer 5 2026-07-21
CFE78PG BA CityFlyer 5 2026-07-19
CFE49N - 5 2026-07-13
CFE36Y BA CityFlyer 5 2026-07-21
CFE9TB BA CityFlyer 4 2026-06-10
CFE95E BA CityFlyer 4 2026-07-22
CFE93PN - 4 2026-06-22
CFE93G - 4 2026-07-13
CFE92Q BA CityFlyer 4 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CFE4459 RTM → LCY Jul 26, 20:15 UTCJul 26, 20:55 UTC40m
2026-07-26 CFE705 LCY → RTM Jul 26, 18:20 UTCJul 26, 19:00 UTC40m
2026-07-26 CFE2GH EDI → LCY Jul 26, 16:30 UTCJul 26, 17:35 UTC1h 5m
2026-07-26 CFE13D - Jul 26, 12:35 UTCJul 26, 15:25 UTC2h 50m
2026-07-26 CFE11G EDI → PMI Jul 26, 07:20 UTCJul 26, 09:45 UTC2h 25m
2026-07-25 CFE92Y PMI → EDI Jul 25, 18:10 UTCJul 25, 20:55 UTC2h 45m
2026-07-25 CFE64G LCY → GLA Jul 25, 14:15 UTCJul 25, 16:50 UTC2h 35m
2026-07-25 CFE72K PMI → EDI Jul 25, 10:15 UTCJul 25, 13:05 UTC2h 50m
2026-07-25 CFE47X EDI → PMI Jul 25, 06:30 UTCJul 25, 09:00 UTC2h 30m
2026-07-24 CFE8712 LCY → EDI Jul 24, 16:55 UTCJul 24, 17:50 UTC55m
2026-07-24 CFE80NJ FLR → LCY Jul 24, 14:10 UTCJul 24, 15:55 UTC1h 45m
2026-07-24 CFE56D LCY → FLR Jul 24, 11:20 UTCJul 24, 13:10 UTC1h 50m
2026-07-24 CFE71LK EGC → LCY Jul 24, 09:00 UTCJul 24, 10:15 UTC1h 15m
2026-07-24 CFE408 LCY → EGC Jul 24, 06:40 UTCJul 24, 07:55 UTC1h 15m
2026-07-23 CFE74MR AGP → LCY Jul 23, 17:00 UTCJul 23, 19:25 UTC2h 25m
2026-07-23 CFE8473 LCY → AGP Jul 23, 13:15 UTCJul 23, 15:45 UTC2h 30m
2026-07-23 CFE39R NCE → LCY Jul 23, 10:30 UTCJul 23, 12:15 UTC1h 45m
2026-07-23 CFE664 LPL → JER Jul 23, 07:50 UTCJul 23, 09:20 UTC1h 30m
2026-07-22 CFE557 LCY → LCY Jul 22, 19:25 UTCJul 22, 20:30 UTC1h 5m
2026-07-22 CFE37E LCY → DUB Jul 22, 17:40 UTCJul 22, 18:35 UTC55m
2026-07-22 CFE6LJ DUB → LCY Jul 22, 15:50 UTCJul 22, 16:50 UTC1h 0m
2026-07-22 CFE95E LCY → DUB Jul 22, 13:45 UTCJul 22, 14:45 UTC1h 0m
2026-07-22 CFE48A PMI → LCY Jul 22, 11:10 UTCJul 22, 12:25 UTC1h 15m
2026-07-21 CFE36Y LIN → LCY Jul 21, 18:40 UTCJul 21, 20:10 UTC1h 30m
2026-07-21 CFE844 LCY → LIN Jul 21, 15:55 UTCJul 21, 17:20 UTC1h 25m
2026-07-21 CFE102 BHD → LCY Jul 21, 13:45 UTCJul 21, 14:50 UTC1h 5m
2026-07-21 CFE62N LCY → BHD Jul 21, 11:35 UTCJul 21, 12:35 UTC1h 0m
2026-07-21 CFE801 LIN → LCY Jul 21, 08:55 UTCJul 21, 10:30 UTC1h 35m
2026-07-21 CFE92Q LCY → LIN Jul 21, 06:20 UTCJul 21, 07:50 UTC1h 30m
2026-07-20 CFE557 - Jul 20, 19:20 UTCJul 20, 20:15 UTC55m
2026-07-20 CFE37E LCY → DUB Jul 20, 17:20 UTCJul 20, 18:10 UTC50m
2026-07-20 CFE6LJ DUB → LCY Jul 20, 15:15 UTCJul 20, 16:20 UTC1h 5m
2026-07-20 CFE95E LCY → DUB Jul 20, 13:10 UTCJul 20, 14:05 UTC55m
2026-07-20 CFE71LK EGC → LCY Jul 20, 10:40 UTCJul 20, 12:00 UTC1h 20m
2026-07-20 CFE408 LCY → EGC Jul 20, 08:30 UTCJul 20, 09:35 UTC1h 5m
2026-07-20 CFE36P EDI → LCY Jul 20, 06:15 UTCJul 20, 07:25 UTC1h 10m
2026-07-19 CFE78PG LCY → EDI Jul 19, 19:50 UTCJul 19, 20:50 UTC1h 0m
2026-07-19 CFE48A - Jul 19, 17:00 UTCJul 19, 19:05 UTC2h 5m
2026-07-19 CFE79SC - Jul 19, 14:00 UTCJul 19, 16:05 UTC2h 5m
2026-07-19 CFE979 PMI → LCY Jul 19, 10:50 UTCJul 19, 12:50 UTC2h 0m
2026-07-18 CFE703R JER → PMI Jul 18, 13:25 UTCJul 18, 15:20 UTC1h 55m
2026-07-18 CFE382 - Jul 18, 10:30 UTCJul 18, 12:10 UTC1h 40m
2026-07-18 CFE79SC - Jul 18, 06:55 UTCJul 18, 09:00 UTC2h 5m
2026-07-17 CFE65GM NCE → LCY Jul 17, 19:55 UTCJul 17, 21:30 UTC1h 35m
2026-07-17 CFE41R LCY → NCE Jul 17, 17:05 UTCJul 17, 18:44 UTC1h 40m
2026-07-17 CFE25C - Jul 17, 11:50 UTCJul 17, 15:00 UTC3h 10m
2026-07-17 CFE64H - Jul 17, 07:35 UTCJul 17, 10:25 UTC2h 50m
2026-07-16 CFE36Y LIN → LCY Jul 16, 19:40 UTCJul 16, 21:15 UTC1h 35m
2026-07-16 CFE844 LCY → LIN Jul 16, 16:55 UTCJul 16, 18:25 UTC1h 30m
2026-07-16 CFE53NR - Jul 16, 14:20 UTCJul 16, 15:25 UTC1h 5m

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

Mode-S 40676A frequently asked

What is Mode-S code 40676A?
40676A is an ICAO 24-bit transponder address. Allocated to United Kingdom. Assigned to G-LCYR.
Where is Mode-S 40676A registered?
Mode-S code 40676A 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 40676A broadcasting right now?
Yes. Mode-S 40676A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 40676A, octal 20063552, decimal 4,220,778.
What flights does 40676A operate?
Mode-S 40676A has broadcast 20 distinct callsigns, including CFE664, CFE39R, CFE8712, CFE779, CFE19F.