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 4h ago
Flights observed
220
Distinct callsigns
20
Country
ES
Last broadcast
4h 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
BCS417 - 13 2026-07-10
BCS4301 - 11 2026-07-08
BCS3JM - 11 2026-07-06
BCS1GH European Air Transport 11 2026-07-06
BCS448 - 10 2026-07-09
BCS7750 - 9 2026-07-08
BCS71N - 9 2026-07-14
BCS34W - 9 2026-07-08
BCS2886 - 9 2026-07-01
BCS7552 - 8 2026-07-08
BCS2MC European Air Transport 8 2026-07-01
BCS22W - 8 2026-07-13
BCS8UM - 7 2026-06-18
BCS428 European Air Transport 6 2026-07-01
BCS136 - 6 2026-06-17
BCS9237 European Air Transport 5 2026-06-19
BCS9236 - 5 2026-06-19
BCS7019 - 5 2026-06-19
BCS473 - 5 2026-07-13
BCS472 - 5 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BCS71N - Jul 14, 06:00 UTCJul 14, 06:50 UTC50m
2026-07-14 BCS472 - Jul 14, 01:25 UTCJul 14, 02:55 UTC1h 30m
2026-07-13 BCS473 - Jul 13, 22:00 UTCJul 13, 23:25 UTC1h 25m
2026-07-13 BCS22W - Jul 13, 18:20 UTCJul 13, 19:05 UTC45m
2026-07-13 BCS71N - Jul 13, 04:40 UTCJul 13, 05:31 UTC50m
2026-07-12 BCS3UP - Jul 12, 21:20 UTCJul 12, 22:55 UTC1h 35m
2026-07-10 BCS417 - Jul 10, 22:35 UTCJul 11, 00:00 UTC1h 25m
2026-07-10 BCS22W - Jul 10, 18:10 UTCJul 10, 19:00 UTC50m
2026-07-10 BCS71N - Jul 10, 05:45 UTCJul 10, 06:40 UTC55m
2026-07-10 BCS472 - Jul 10, 01:20 UTCJul 10, 02:55 UTC1h 35m
2026-07-09 BCS473 VIT → EMA Jul 9, 22:00 UTCJul 9, 23:25 UTC1h 25m
2026-07-09 BCS22W - Jul 9, 18:25 UTCJul 9, 19:15 UTC50m
2026-07-09 BCS71N - Jul 9, 06:00 UTCJul 9, 06:50 UTC50m
2026-07-09 BCS448 - Jul 9, 00:05 UTCJul 9, 01:40 UTC1h 35m
2026-07-08 BCS4301 LNZ → CGN Jul 8, 20:30 UTCJul 8, 21:30 UTC1h 0m
2026-07-08 BCS34W SKG → LNZ Jul 8, 17:20 UTCJul 8, 19:05 UTC1h 45m
2026-07-08 BCS7750 ATH → SKG Jul 8, 07:30 UTCJul 8, 08:15 UTC45m
2026-07-08 BCS7552 CGN → ATH Jul 8, 02:55 UTCJul 8, 05:25 UTC2h 30m
2026-07-07 BCS408 MXP → CGN Jul 7, 22:50 UTCJul 7, 23:50 UTC1h 0m
2026-07-07 BCS4515 - Jul 7, 20:30 UTCJul 7, 21:05 UTC35m
2026-07-07 BCS4908 - Jul 7, 02:35 UTCJul 7, 03:15 UTC40m
2026-07-06 BCS417 - Jul 6, 21:35 UTCJul 6, 23:10 UTC1h 35m
2026-07-06 BCS1GH SCQ → VIT Jul 6, 18:15 UTCJul 6, 18:55 UTC40m
2026-07-06 BCS3JM - Jul 6, 04:45 UTCJul 6, 05:25 UTC40m
2026-07-05 BCS3UP - Jul 5, 21:15 UTCJul 5, 22:40 UTC1h 25m
2026-07-03 BCS417 - Jul 3, 22:00 UTCJul 3, 23:30 UTC1h 30m
2026-07-03 BCS1GH SCQ → VIT Jul 3, 18:10 UTCJul 3, 18:50 UTC40m
2026-07-03 BCS3JM - Jul 3, 05:55 UTCJul 3, 06:40 UTC45m
2026-07-03 BCS448 - Jul 3, 00:25 UTCJul 3, 02:00 UTC1h 35m
2026-07-02 BCS4301 - Jul 2, 20:30 UTCJul 2, 21:35 UTC1h 5m
2026-07-02 BCS34W SKG → LNZ Jul 2, 17:30 UTCJul 2, 19:05 UTC1h 35m
2026-07-02 BCS7750 ATH → SKG Jul 2, 07:35 UTCJul 2, 08:05 UTC30m
2026-07-02 BCS7552 CGN → ATH Jul 2, 02:40 UTCJul 2, 05:15 UTC2h 35m
2026-07-01 BCS428 BRU → VIT Jul 1, 23:25 UTCJul 2, 00:25 UTC1h 0m
2026-07-01 BCS2MC DUB → LEJ Jul 1, 20:15 UTCJul 1, 20:50 UTC35m
2026-07-01 BCS2886 BRU → DUB Jul 1, 02:30 UTCJul 1, 03:50 UTC1h 20m
2026-06-30 BCS417 - Jun 30, 21:30 UTCJun 30, 23:00 UTC1h 30m
2026-06-30 BCS1GH SCQ → VIT Jun 30, 18:20 UTCJun 30, 19:00 UTC40m
2026-06-30 BCS3JM - Jun 30, 06:10 UTCJun 30, 07:05 UTC55m
2026-06-30 BCS472 - Jun 30, 01:30 UTCJun 30, 03:05 UTC1h 35m
2026-06-29 BCS473 VIT → EMA Jun 29, 22:05 UTCJun 29, 23:39 UTC1h 35m
2026-06-29 BCS22W - Jun 29, 18:25 UTCJun 29, 19:15 UTC50m
2026-06-29 BCS71N - Jun 29, 04:25 UTCJun 29, 05:15 UTC50m
2026-06-28 BCS422 - Jun 28, 22:59 UTCJun 29, 00:24 UTC1h 25m
2026-06-26 BCS4245 MUC → MXP Jun 26, 21:55 UTCJun 26, 23:00 UTC1h 5m
2026-06-26 BCS3TW DUB → MUC Jun 26, 04:30 UTCJun 26, 06:25 UTC1h 55m
2026-06-26 BCS2886 - Jun 26, 02:09 UTCJun 26, 03:24 UTC1h 15m
2026-06-25 BCS417 - Jun 25, 21:44 UTCJun 25, 23:09 UTC1h 25m
2026-06-25 BCS1GH SCQ → VIT Jun 25, 18:19 UTCJun 25, 18:59 UTC40m
2026-06-25 BCS3JM - Jun 25, 06:00 UTCJun 25, 06:44 UTC45m

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 4h 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 BCS417, BCS4301, BCS3JM, BCS1GH, BCS448.