Apparatus

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sensors Mode-S transponder

347255

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-NUG · BOEING 737-800

Hex
347255
Octal
15071125
Decimal
3,437,141
Country
ES
Tail
EC-NUG
Type
B738
No current signal · last broadcast 9h ago
Flights observed
111
Distinct callsigns
20
Country
ES
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 347255.

Country allocation

The ICAO 24-bit address 347255 falls within the block assigned to Spain (ES) by ICAO Annex 10, Volume III. Every aircraft registered in Spain 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
BCS8UM European Air Transport 6 2026-05-27
BCS448 European Air Transport 6 2026-05-19
BCS4301 - 6 2026-05-18
BCS2MC European Air Transport 6 2026-05-28
BCS2886 European Air Transport 6 2026-05-28
BCS417 European Air Transport 5 2026-05-19
BCS3JM - 5 2026-05-19
BCS1GH European Air Transport 5 2026-05-19
BCS136 European Air Transport 5 2026-05-26
BCS9237 European Air Transport 4 2026-05-27
BCS9236 European Air Transport 4 2026-05-27
BCS7750 European Air Transport 4 2026-05-22
BCS7019 European Air Transport 4 2026-05-27
BCS428 European Air Transport 4 2026-05-28
BCS34W European Air Transport 4 2026-05-22
BCS81Q - 3 2026-05-29
BCS7552 European Air Transport 3 2026-05-08
BCS5959 - 3 2026-05-13
BCS4894 European Air Transport 3 2026-05-29
BCS7CW - 2 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 BCS81Q GVA → LEJ May 29, 19:40 UTCMay 29, 20:55 UTC1h 15m
2026-05-29 BCS4894 MXP → GVA May 29, 03:15 UTCMay 29, 04:15 UTC1h 0m
2026-05-28 BCS428 BRU → VIT May 28, 23:20 UTCMay 29, 00:20 UTC1h 0m
2026-05-28 BCS2MC DUB → LEJ May 28, 20:15 UTCMay 28, 21:00 UTC45m
2026-05-28 BCS2886 BRU → DUB May 28, 02:15 UTCMay 28, 03:25 UTC1h 10m
2026-05-27 BCS7019 BLQ → BRU May 27, 20:45 UTCMay 27, 22:10 UTC1h 25m
2026-05-27 BCS9237 BLQ → LEJ May 27, 16:55 UTCMay 27, 18:10 UTC1h 15m
2026-05-27 BCS9236 ATH → SKP May 27, 07:05 UTCMay 27, 07:50 UTC45m
2026-05-27 BCS8UM MXP → ATH May 27, 01:59 UTCMay 27, 04:04 UTC2h 5m
2026-05-26 BCS136 LEJ → MXP May 26, 22:54 UTCMay 27, 00:00 UTC1h 5m
2026-05-26 BCS81Q - May 26, 20:05 UTCMay 26, 21:20 UTC1h 15m
2026-05-26 BCS4894 MXP → GVA May 26, 03:09 UTCMay 26, 04:10 UTC1h 0m
2026-05-25 BCS428 BRU → VIT May 25, 23:30 UTCMay 26, 00:35 UTC1h 5m
2026-05-25 BCS2MC DUB → LEJ May 25, 20:09 UTCMay 25, 20:45 UTC35m
2026-05-24 BCS2886 BRU → DUB May 24, 21:00 UTCMay 24, 21:50 UTC50m
2026-05-22 BCS7019 BLQ → BRU May 22, 20:40 UTCMay 22, 22:05 UTC1h 25m
2026-05-22 BCS34W SKG → VCE May 22, 17:00 UTCMay 22, 18:40 UTC1h 40m
2026-05-22 BCS7750 ATH → SKG May 22, 07:30 UTCMay 22, 08:05 UTC35m
2026-05-22 BCS8UM MXP → ATH May 22, 01:50 UTCMay 22, 04:00 UTC2h 10m
2026-05-21 BCS136 LEJ → MXP May 21, 22:35 UTCMay 21, 23:45 UTC1h 10m
2026-05-21 BCS81Q - May 21, 19:50 UTCMay 21, 21:00 UTC1h 10m
2026-05-21 BCS4894 MXP → GVA May 21, 03:20 UTCMay 21, 04:25 UTC1h 5m
2026-05-20 BCS428 BRU → VIT May 20, 23:15 UTCMay 21, 00:20 UTC1h 5m
2026-05-20 BCS2MC DUB → LEJ May 20, 20:20 UTCMay 20, 21:00 UTC40m
2026-05-20 BCS2886 BRU → DUB May 20, 02:10 UTCMay 20, 03:25 UTC1h 15m
2026-05-19 BCS417 VIT → BRU May 19, 21:30 UTCMay 19, 23:05 UTC1h 35m
2026-05-19 BCS1GH SCQ → VIT May 19, 18:30 UTCMay 19, 19:10 UTC40m
2026-05-19 BCS3JM - May 19, 06:05 UTCMay 19, 06:50 UTC45m
2026-05-19 BCS448 LEJ → CGN May 19, 00:25 UTCMay 19, 02:05 UTC1h 40m
2026-05-18 BCS4301 LNZ → CGN May 18, 20:20 UTCMay 18, 21:25 UTC1h 5m
2026-05-18 BCS238P SNN → LEJ May 18, 06:01 UTCMay 18, 08:50 UTC2h 50m
2026-05-18 BCS4VK LEJ → LEJ May 18, 01:45 UTCMay 18, 04:25 UTC2h 40m
2026-05-15 BCS7CW - May 15, 20:30 UTCMay 15, 21:55 UTC1h 25m
2026-05-15 BCS6RU LEJ → PSA May 15, 03:45 UTCMay 15, 05:00 UTC1h 15m
2026-05-14 BCS2200 BRU → LEJ May 14, 23:30 UTCMay 15, 00:30 UTC1h 0m
2026-05-14 BCS7019 BLQ → BRU May 14, 20:40 UTCMay 14, 22:00 UTC1h 20m
2026-05-14 BCS9237 BLQ → LEJ May 14, 16:55 UTCMay 14, 18:15 UTC1h 20m
2026-05-14 BCS9236 ATH → SKP May 14, 07:00 UTCMay 14, 07:45 UTC45m
2026-05-14 BCS8UM MXP → ATH May 14, 01:40 UTCMay 14, 03:35 UTC1h 55m
2026-05-13 BCS136 LEJ → MXP May 13, 22:15 UTCMay 13, 23:30 UTC1h 15m
2026-05-13 BCS71R VNO → LEJ May 13, 18:50 UTCMay 13, 20:20 UTC1h 30m
2026-05-13 BCS5959 LEJ → VNO May 13, 03:55 UTCMay 13, 05:20 UTC1h 25m
2026-05-12 BCS2200 BRU → LEJ May 12, 23:40 UTCMay 13, 00:35 UTC55m
2026-05-12 BCS7019 BLQ → BRU May 12, 20:35 UTCMay 12, 22:01 UTC1h 25m
2026-05-12 BCS9237 BLQ → LEJ May 12, 17:15 UTCMay 12, 18:45 UTC1h 30m
2026-05-12 BCS9236 ATH → SKP May 12, 07:20 UTCMay 12, 08:00 UTC40m
2026-05-12 BCS8UM MXP → ATH May 12, 02:45 UTCMay 12, 03:45 UTC1h 0m
2026-05-11 BCS71R VNO → LEJ May 11, 19:00 UTCMay 11, 20:30 UTC1h 30m
2026-05-11 BCS5959 - May 11, 05:30 UTCMay 11, 06:40 UTC1h 10m
2026-05-11 BCS5959 - May 11, 01:20 UTCMay 11, 03:45 UTC2h 25m

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 EC-NUG page for operator, model, and routing details .

Mode-S 347255 frequently asked

What is Mode-S code 347255?
347255 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-NUG.
Where is Mode-S 347255 registered?
Mode-S code 347255 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 347255 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 347255, octal 15071125, decimal 3,437,141.
What flights does 347255 operate?
Mode-S 347255 has broadcast 20 distinct callsigns, including BCS8UM, BCS448, BCS4301, BCS2MC, BCS2886.