Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

3474CE

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-OBN · BOEING 737-800

Hex
3474CE
Octal
15072316
Decimal
3,437,774
Country
ES
Tail
EC-OBN
Type
B738
No current signal · last broadcast 7h ago
Flights observed
132
Distinct callsigns
20
Country
ES
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 3474CE.

Country allocation

The ICAO 24-bit address 3474CE 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
SWT3WZ - 39 2026-07-14
SWT9ER - 38 2026-07-13
BCS71N European Air Transport 5 2026-04-24
BCS473 European Air Transport 5 2026-04-23
BCS22W European Air Transport 5 2026-04-24
BCS472 European Air Transport 4 2026-04-24
BCS448 European Air Transport 3 2026-04-22
BCS4301 - 3 2026-04-21
BCS9237 European Air Transport 2 2026-04-29
BCS9236 European Air Transport 2 2026-04-29
BCS7750 European Air Transport 2 2026-04-21
BCS7552 European Air Transport 2 2026-04-21
BCS7019 European Air Transport 2 2026-04-29
BCS6RU European Air Transport 2 2026-05-01
BCS408 European Air Transport 2 2026-04-20
BCS34W European Air Transport 2 2026-04-21
BCS2200 - 2 2026-04-29
SWT770P Swiftair 1 2026-05-01
SWT4723 - 1 2026-05-22
BCS8UM European Air Transport 1 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWT3WZ - Jul 14, 02:30 UTCJul 14, 03:40 UTC1h 10m
2026-07-13 SWT9ER BER → CDG Jul 13, 20:15 UTCJul 13, 21:50 UTC1h 35m
2026-07-10 SWT3WZ - Jul 10, 02:45 UTCJul 10, 04:00 UTC1h 15m
2026-07-09 SWT9ER BER → CDG Jul 9, 20:15 UTCJul 9, 21:40 UTC1h 25m
2026-07-09 SWT3WZ - Jul 9, 02:35 UTCJul 9, 03:55 UTC1h 20m
2026-07-08 SWT9ER BER → CDG Jul 8, 20:15 UTCJul 8, 21:40 UTC1h 25m
2026-07-08 SWT3WZ - Jul 8, 02:55 UTCJul 8, 04:15 UTC1h 20m
2026-07-07 SWT9ER - Jul 7, 20:25 UTCJul 7, 21:45 UTC1h 20m
2026-07-07 SWT3WZ CDG → BER Jul 7, 02:45 UTCJul 7, 04:10 UTC1h 25m
2026-07-06 SWT9ER BER → CDG Jul 6, 20:45 UTCJul 6, 22:05 UTC1h 20m
2026-07-03 SWT3WZ - Jul 3, 02:50 UTCJul 3, 04:05 UTC1h 15m
2026-07-02 SWT9ER BER → CDG Jul 2, 20:15 UTCJul 2, 21:40 UTC1h 25m
2026-07-02 SWT3WZ - Jul 2, 03:00 UTCJul 2, 04:20 UTC1h 20m
2026-07-01 SWT9ER BER → CDG Jul 1, 20:40 UTCJul 1, 21:50 UTC1h 10m
2026-07-01 SWT3WZ CDG → BER Jul 1, 02:40 UTCJul 1, 03:50 UTC1h 10m
2026-06-30 SWT9ER BER → CDG Jun 30, 20:25 UTCJun 30, 21:55 UTC1h 30m
2026-06-30 SWT3WZ - Jun 30, 02:30 UTCJun 30, 03:40 UTC1h 10m
2026-06-29 SWT9ER BER → CDG Jun 29, 20:19 UTCJun 29, 21:39 UTC1h 20m
2026-06-26 SWT3WZ - Jun 26, 02:44 UTCJun 26, 03:54 UTC1h 10m
2026-06-25 SWT9ER BER → CDG Jun 25, 20:19 UTCJun 25, 21:44 UTC1h 25m
2026-06-25 SWT3WZ - Jun 25, 02:45 UTCJun 25, 03:54 UTC1h 10m
2026-06-24 SWT9ER BER → CDG Jun 24, 20:20 UTCJun 24, 21:50 UTC1h 30m
2026-06-24 SWT3WZ CDG → BER Jun 24, 02:40 UTCJun 24, 03:55 UTC1h 15m
2026-06-23 SWT9ER BER → CDG Jun 23, 20:10 UTCJun 23, 21:34 UTC1h 25m
2026-06-23 SWT3WZ - Jun 23, 02:40 UTCJun 23, 03:54 UTC1h 15m
2026-06-22 SWT9ER BER → CDG Jun 22, 20:24 UTCJun 22, 21:49 UTC1h 25m
2026-06-18 SWT3WZ CDG → BER Jun 18, 02:45 UTCJun 18, 04:00 UTC1h 15m
2026-06-17 SWT9ER BER → CDG Jun 17, 20:10 UTCJun 17, 21:35 UTC1h 25m
2026-06-17 SWT3WZ - Jun 17, 02:45 UTCJun 17, 04:05 UTC1h 20m
2026-06-16 SWT9ER BER → CDG Jun 16, 20:15 UTCJun 16, 21:30 UTC1h 15m
2026-06-16 SWT3WZ CDG → BER Jun 16, 02:54 UTCJun 16, 04:15 UTC1h 20m
2026-06-15 SWT9ER - Jun 15, 20:20 UTCJun 15, 21:50 UTC1h 30m
2026-06-12 SWT3WZ CDG → BER Jun 12, 02:35 UTCJun 12, 03:55 UTC1h 20m
2026-06-11 SWT9ER BER → CDG Jun 11, 20:20 UTCJun 11, 21:45 UTC1h 25m
2026-06-11 SWT3WZ CDG → BER Jun 11, 02:50 UTCJun 11, 04:10 UTC1h 20m
2026-06-10 SWT9ER BER → CDG Jun 10, 20:25 UTCJun 10, 21:50 UTC1h 25m
2026-06-10 SWT3WZ - Jun 10, 02:50 UTCJun 10, 04:05 UTC1h 15m
2026-06-09 SWT9ER BER → CDG Jun 9, 20:20 UTCJun 9, 21:50 UTC1h 30m
2026-06-09 SWT3WZ CDG → BER Jun 9, 03:30 UTCJun 9, 04:45 UTC1h 15m
2026-06-08 SWT9ER - Jun 8, 20:25 UTCJun 8, 22:00 UTC1h 35m
2026-06-05 SWT3WZ - Jun 5, 02:40 UTCJun 5, 03:55 UTC1h 15m
2026-06-04 SWT9ER - Jun 4, 21:25 UTCJun 4, 22:55 UTC1h 30m
2026-06-04 SWT3WZ CDG → BER Jun 4, 02:35 UTCJun 4, 03:50 UTC1h 15m
2026-06-03 SWT9ER BER → CDG Jun 3, 20:10 UTCJun 3, 21:35 UTC1h 25m
2026-06-03 SWT3WZ - Jun 3, 02:40 UTCJun 3, 03:55 UTC1h 15m
2026-06-02 SWT9ER BER → CDG Jun 2, 20:15 UTCJun 2, 21:45 UTC1h 30m
2026-06-02 SWT3WZ CDG → BER Jun 2, 02:50 UTCJun 2, 04:05 UTC1h 15m
2026-06-01 SWT9ER BER → CDG Jun 1, 20:45 UTCJun 1, 22:05 UTC1h 20m
2026-05-29 SWT3WZ - May 29, 02:40 UTCMay 29, 04:00 UTC1h 20m
2026-05-28 SWT9ER BER → CDG May 28, 20:25 UTCMay 28, 21:45 UTC1h 20m

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

Mode-S 3474CE frequently asked

What is Mode-S code 3474CE?
3474CE is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-OBN.
Where is Mode-S 3474CE registered?
Mode-S code 3474CE is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3474CE broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3474CE, octal 15072316, decimal 3,437,774.
What flights does 3474CE operate?
Mode-S 3474CE has broadcast 20 distinct callsigns, including SWT3WZ, SWT9ER, BCS71N, BCS473, BCS22W.