Apparatus

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sensors Mode-S transponder

3481C9

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-OJX · BOEING 737-800

Hex
3481C9
Octal
15100711
Decimal
3,441,097
Country
ES
Tail
EC-OJX
Type
B738
No current signal · last broadcast May 1, 10:00 UTC
Flights observed
56
Distinct callsigns
20
Country
ES
Last broadcast
May 1, 10:00 UTC

Last known position

Most recent position reported by Mode-S 3481C9.

Country allocation

The ICAO 24-bit address 3481C9 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
BCS7019 European Air Transport 6 2026-04-24
BCS9236 European Air Transport 5 2026-04-24
BCS71N European Air Transport 5 2026-05-01
BCS9237 European Air Transport 4 2026-04-24
BCS8UM European Air Transport 4 2026-04-24
BCS22W European Air Transport 4 2026-04-30
BCS473 European Air Transport 3 2026-04-30
BCS472 European Air Transport 3 2026-05-01
BCS136 European Air Transport 3 2026-04-23
BCS7552 European Air Transport 2 2026-04-15
BCS4515 European Air Transport 2 2026-04-14
BCS408 - 2 2026-04-14
BCS3QL European Air Transport 2 2026-04-23
BCS125 European Air Transport 2 2026-04-16
BCS5918 - 1 2026-04-23
BCS417 European Air Transport 1 2026-04-20
BCS416 European Air Transport 1 2026-04-19
BCS3UP European Air Transport 1 2026-04-26
BCS3JM - 1 2026-04-20
BCS245P European Air Transport 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-01 BCS006P LEJ → SNN May 1, 09:05 UTCMay 1, 09:55 UTC50m
2026-05-01 BCS71N VIT → ALC May 1, 06:10 UTCMay 1, 07:05 UTC55m
2026-05-01 BCS472 EMA → EMA May 1, 01:20 UTCMay 1, 02:50 UTC1h 30m
2026-04-30 BCS473 VIT → EMA Apr 30, 21:55 UTCApr 30, 23:25 UTC1h 30m
2026-04-30 BCS22W EMA → ALC Apr 30, 18:20 UTCApr 30, 19:15 UTC55m
2026-04-30 BCS71N VIT → ALC Apr 30, 06:25 UTCApr 30, 07:10 UTC45m
2026-04-30 BCS472 EMA → EMA Apr 30, 01:20 UTCApr 30, 03:00 UTC1h 40m
2026-04-29 BCS473 VIT → EMA Apr 29, 22:35 UTCApr 30, 00:05 UTC1h 29m
2026-04-29 BCS22W EMA → ALC Apr 29, 18:10 UTCApr 29, 18:55 UTC45m
2026-04-29 BCS71N VIT → ALC Apr 29, 06:00 UTCApr 29, 06:55 UTC55m
2026-04-28 BCS22W EMA → ALC Apr 28, 18:10 UTCApr 28, 19:00 UTC50m
2026-04-28 BCS71N VIT → ALC Apr 28, 06:05 UTCApr 28, 07:00 UTC55m
2026-04-28 BCS472 EMA → EMA Apr 28, 01:30 UTCApr 28, 03:00 UTC1h 30m
2026-04-27 BCS473 VIT → EMA Apr 27, 22:20 UTCApr 27, 23:55 UTC1h 35m
2026-04-27 BCS22W EMA → ALC Apr 27, 18:20 UTCApr 27, 19:20 UTC1h 0m
2026-04-27 BCS71N VIT → ALC Apr 27, 04:20 UTCApr 27, 05:05 UTC45m
2026-04-26 BCS3UP BRU → VIT Apr 26, 21:05 UTCApr 26, 22:35 UTC1h 30m
2026-04-24 BCS7019 BLQ → BRU Apr 24, 20:45 UTCApr 24, 22:10 UTC1h 25m
2026-04-24 BCS9237 BLQ → LEJ Apr 24, 16:55 UTCApr 24, 18:10 UTC1h 15m
2026-04-24 BCS9236 ATH → SKP Apr 24, 06:50 UTCApr 24, 07:35 UTC45m
2026-04-24 BCS8UM MXP → ATH Apr 24, 01:50 UTCApr 24, 03:55 UTC2h 5m
2026-04-23 BCS136 LEJ → MXP Apr 23, 22:25 UTCApr 23, 23:30 UTC1h 5m
2026-04-23 BCS3QL BRU → LEJ Apr 23, 20:05 UTCApr 23, 21:05 UTC1h 0m
2026-04-23 BCS245P LEJ → VBS Apr 23, 17:15 UTCApr 23, 18:50 UTC1h 34m
2026-04-23 BCS5918 - Apr 23, 03:10 UTCApr 23, 04:05 UTC55m
2026-04-22 BCS244P BRU → LEJ Apr 22, 23:40 UTCApr 23, 00:40 UTC1h 0m
2026-04-22 BCS7019 BLQ → BRU Apr 22, 20:40 UTCApr 22, 22:10 UTC1h 30m
2026-04-22 BCS9237 BLQ → LEJ Apr 22, 16:45 UTCApr 22, 18:15 UTC1h 30m
2026-04-22 BCS9236 ATH → SKP Apr 22, 06:55 UTCApr 22, 07:40 UTC45m
2026-04-22 BCS8UM MXP → ATH Apr 22, 02:00 UTCApr 22, 03:55 UTC1h 55m
2026-04-21 BCS136 LEJ → MXP Apr 21, 23:05 UTCApr 22, 00:15 UTC1h 10m
2026-04-21 BCS3QL BRU → LEJ Apr 21, 20:40 UTCApr 21, 21:40 UTC1h 0m
2026-04-20 BCS417 VIT → BRU Apr 20, 21:30 UTCApr 20, 23:00 UTC1h 30m
2026-04-20 BCS1GH - Apr 20, 18:20 UTCApr 20, 19:00 UTC40m
2026-04-20 BCS3JM - Apr 20, 04:40 UTCApr 20, 05:25 UTC45m
2026-04-19 BCS416 BRU → VIT Apr 19, 21:10 UTCApr 19, 22:40 UTC1h 30m
2026-04-17 BCS7019 BLQ → BRU Apr 17, 21:25 UTCApr 17, 22:05 UTC40m
2026-04-17 BCS7019 BLQ → BRU Apr 17, 20:40 UTCApr 17, 21:15 UTC35m
2026-04-17 BCS9237 - Apr 17, 17:25 UTCApr 17, 18:35 UTC1h 10m
2026-04-17 BCS9236 ATH → SKP Apr 17, 07:20 UTCApr 17, 07:45 UTC25m
2026-04-17 BCS9236 ATH → SKP Apr 17, 07:05 UTCApr 17, 07:15 UTC10m
2026-04-17 BCS8UM MXP → ATH Apr 17, 03:20 UTCApr 17, 04:05 UTC45m
2026-04-17 BCS8UM MXP → ATH Apr 17, 01:55 UTCApr 17, 03:15 UTC1h 20m
2026-04-16 BCS136 LEJ → MXP Apr 16, 23:20 UTCApr 17, 00:25 UTC1h 5m
2026-04-16 BCS125 BRU → LEJ Apr 16, 21:14 UTCApr 16, 21:30 UTC15m
2026-04-16 BCS125 BRU → LEJ Apr 16, 20:35 UTCApr 16, 21:10 UTC35m
2026-04-15 BCS7019 BLQ → BRU Apr 15, 21:35 UTCApr 15, 23:00 UTC1h 25m
2026-04-15 BCS9237 - Apr 15, 17:10 UTCApr 15, 18:25 UTC1h 15m
2026-04-15 BCS9236 ATH → SKP Apr 15, 07:10 UTCApr 15, 07:55 UTC45m
2026-04-15 BCS7552 LEJ → CGN Apr 15, 05:00 UTCApr 15, 05:25 UTC25m

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

Mode-S 3481C9 frequently asked

What is Mode-S code 3481C9?
3481C9 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-OJX.
Where is Mode-S 3481C9 registered?
Mode-S code 3481C9 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3481C9 broadcasting right now?
No active broadcast right now. Last signal was May 1, 10:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3481C9, octal 15100711, decimal 3,441,097.
What flights does 3481C9 operate?
Mode-S 3481C9 has broadcast 20 distinct callsigns, including BCS7019, BCS9236, BCS71N, BCS9237, BCS8UM.