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 4h ago
Flights observed
153
Distinct callsigns
20
Country
ES
Last broadcast
4h ago

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 - 12 2026-07-16
BCS9236 - 11 2026-07-16
BCS9237 - 10 2026-07-16
BCS8UM - 9 2026-07-16
BCS136 - 9 2026-07-15
BCS71N - 6 2026-07-03
BCS2886 - 5 2026-07-17
BCS22W - 5 2026-07-03
BCS81Q - 4 2026-07-15
BCS4894 - 4 2026-07-15
BCS473 European Air Transport 4 2026-07-02
BCS472 - 4 2026-07-03
BCS4515 - 4 2026-06-30
BCS408 - 4 2026-06-30
BCS3JM - 4 2026-07-02
BCS1GH European Air Transport 4 2026-07-02
BCS7552 - 3 2026-07-01
BCS4PK European Air Transport 3 2026-06-12
BCS428 - 3 2026-07-14
BCS417 - 3 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 BCS4245 MUC → MXP Jul 17, 21:30 UTCJul 17, 22:20 UTC50m
2026-07-17 BCS3TW DUB → DUB Jul 17, 04:39 UTCJul 17, 06:50 UTC2h 10m
2026-07-17 BCS2886 - Jul 17, 02:25 UTCJul 17, 03:34 UTC1h 10m
2026-07-16 BCS7019 - Jul 16, 21:55 UTCJul 16, 23:20 UTC1h 25m
2026-07-16 BCS9237 - Jul 16, 16:55 UTCJul 16, 18:25 UTC1h 30m
2026-07-16 BCS9236 - Jul 16, 07:00 UTCJul 16, 07:50 UTC50m
2026-07-16 BCS8UM MXP → ATH Jul 16, 01:50 UTCJul 16, 03:55 UTC2h 5m
2026-07-15 BCS136 LEJ → MXP Jul 15, 22:45 UTCJul 15, 23:55 UTC1h 10m
2026-07-15 BCS81Q GVA → LEJ Jul 15, 20:15 UTCJul 15, 21:35 UTC1h 20m
2026-07-15 BCS4894 CGN → GVA Jul 15, 03:20 UTCJul 15, 04:20 UTC1h 0m
2026-07-14 BCS428 EMA → CGN Jul 14, 23:30 UTCJul 15, 00:35 UTC1h 5m
2026-07-14 BCS2MC DUB → LEJ Jul 14, 20:15 UTCJul 14, 20:50 UTC35m
2026-07-14 BCS2886 BRU → DUB Jul 14, 02:15 UTCJul 14, 03:30 UTC1h 15m
2026-07-13 BCS7019 - Jul 13, 20:50 UTCJul 13, 22:15 UTC1h 25m
2026-07-13 BCS9237 - Jul 13, 17:05 UTCJul 13, 18:25 UTC1h 20m
2026-07-13 BCS9236 - Jul 13, 05:31 UTCJul 13, 06:10 UTC40m
2026-07-12 BCS7550 MXP → ATH Jul 12, 23:10 UTCJul 13, 01:10 UTC2h 0m
2026-07-10 BCS4245 MUC → MXP Jul 10, 21:30 UTCJul 10, 22:15 UTC45m
2026-07-10 BCS3TW DUB → MUC Jul 10, 05:00 UTCJul 10, 06:50 UTC1h 50m
2026-07-10 BCS2886 - Jul 10, 02:25 UTCJul 10, 03:45 UTC1h 20m
2026-07-09 BCS7019 - Jul 9, 20:45 UTCJul 9, 22:10 UTC1h 25m
2026-07-09 BCS9237 - Jul 9, 17:20 UTCJul 9, 18:45 UTC1h 25m
2026-07-09 BCS9236 - Jul 9, 07:10 UTCJul 9, 07:55 UTC45m
2026-07-09 BCS8UM MXP → ATH Jul 9, 01:50 UTCJul 9, 03:50 UTC2h 0m
2026-07-08 BCS136 - Jul 8, 23:25 UTCJul 8, 23:50 UTC25m
2026-07-08 BCS136 - Jul 8, 22:35 UTCJul 8, 23:20 UTC45m
2026-07-08 BCS81Q - Jul 8, 19:45 UTCJul 8, 21:00 UTC1h 15m
2026-07-08 BCS4894 CGN → GVA Jul 8, 03:10 UTCJul 8, 04:10 UTC1h 0m
2026-07-07 BCS428 EMA → CGN Jul 7, 23:25 UTCJul 8, 00:30 UTC1h 5m
2026-07-07 BCS2MC DUB → LEJ Jul 7, 20:35 UTCJul 7, 21:15 UTC40m
2026-07-07 BCS2886 - Jul 7, 02:15 UTCJul 7, 03:30 UTC1h 15m
2026-07-06 BCS7019 - Jul 6, 20:40 UTCJul 6, 22:05 UTC1h 25m
2026-07-06 BCS9237 - Jul 6, 16:50 UTCJul 6, 18:10 UTC1h 20m
2026-07-06 BCS9236 - Jul 6, 07:25 UTCJul 6, 08:10 UTC45m
2026-07-06 BCS7550 MXP → ATH Jul 6, 03:50 UTCJul 6, 05:50 UTC2h 0m
2026-07-03 BCS7AG - Jul 3, 21:15 UTCJul 3, 22:50 UTC1h 35m
2026-07-03 BCS22W - Jul 3, 18:10 UTCJul 3, 19:00 UTC50m
2026-07-03 BCS71N - Jul 3, 05:50 UTCJul 3, 06:35 UTC45m
2026-07-03 BCS472 - Jul 3, 01:15 UTCJul 3, 02:45 UTC1h 30m
2026-07-02 BCS473 VIT → EMA Jul 2, 22:00 UTCJul 2, 23:35 UTC1h 35m
2026-07-02 BCS1GH SCQ → VIT Jul 2, 18:15 UTCJul 2, 18:50 UTC35m
2026-07-02 BCS3JM - Jul 2, 06:15 UTCJul 2, 06:45 UTC30m
2026-07-02 BCS448 - Jul 2, 00:30 UTCJul 2, 02:05 UTC1h 35m
2026-07-01 BCS4301 LNZ → CGN Jul 1, 20:55 UTCJul 1, 21:55 UTC1h 0m
2026-07-01 BCS34W - Jul 1, 17:50 UTCJul 1, 19:30 UTC1h 40m
2026-07-01 BCS7750 ATH → SKG Jul 1, 07:35 UTCJul 1, 08:20 UTC45m
2026-07-01 BCS7552 CGN → ATH Jul 1, 02:45 UTCJul 1, 05:25 UTC2h 40m
2026-06-30 BCS408 MXP → CGN Jun 30, 22:35 UTCJun 30, 23:40 UTC1h 5m
2026-06-30 BCS4515 - Jun 30, 20:35 UTCJun 30, 21:10 UTC35m
2026-06-30 BCS4908 - Jun 30, 02:40 UTCJun 30, 03:30 UTC50m

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 4h ago.
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, BCS9237, BCS8UM, BCS136.