Apparatus

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sensors Mode-S transponder

346187

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-NBS · CESSNA 680 Citation Latitude

Hex
346187
Octal
15060607
Decimal
3,432,839
Country
ES
Tail
EC-NBS
Type
C68A
No current signal · last broadcast 16h ago
Flights observed
149
Distinct callsigns
2
Country
ES
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 346187.

Country allocation

The ICAO 24-bit address 346187 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 2 distinct

Callsign Airline Flights Last seen
GES441S - 121 2026-07-13
GES442S - 28 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 GES442S - Jul 13, 16:15 UTCJul 13, 17:05 UTC50m
2026-07-13 GES442S - Jul 13, 14:20 UTCJul 13, 15:15 UTC55m
2026-07-13 GES441S - Jul 13, 10:20 UTCJul 13, 12:05 UTC1h 45m
2026-07-13 GES441S BCN → BQH Jul 13, 06:50 UTCJul 13, 08:50 UTC2h 0m
2026-07-12 GES441S - Jul 12, 18:50 UTCJul 12, 20:35 UTC1h 45m
2026-07-10 GES441S BCN → FAB Jul 10, 12:35 UTCJul 10, 14:20 UTC1h 45m
2026-07-09 GES441S - Jul 9, 18:10 UTCJul 9, 18:25 UTC15m
2026-07-09 GES441S - Jul 9, 16:25 UTCJul 9, 17:25 UTC1h 0m
2026-07-09 GES441S - Jul 9, 07:45 UTCJul 9, 08:45 UTC1h 0m
2026-07-09 GES441S - Jul 9, 06:15 UTCJul 9, 07:05 UTC50m
2026-07-08 GES441S - Jul 8, 14:35 UTCJul 8, 16:45 UTC2h 10m
2026-07-08 GES441S BCN → FRA Jul 8, 06:20 UTCJul 8, 08:15 UTC1h 55m
2026-07-06 GES441S JMK → BCN Jul 6, 19:10 UTCJul 6, 22:15 UTC3h 5m
2026-07-06 GES441S - Jul 6, 14:25 UTCJul 6, 18:10 UTC3h 45m
2026-07-06 GES441S - Jul 6, 11:10 UTCJul 6, 12:30 UTC1h 20m
2026-07-05 GES441S - Jul 5, 16:20 UTCJul 5, 17:15 UTC55m
2026-07-05 GES441S BCN → MAD Jul 5, 13:15 UTCJul 5, 14:05 UTC50m
2026-07-04 GES442S - Jul 4, 16:25 UTCJul 4, 18:55 UTC2h 30m
2026-07-04 GES442S - Jul 4, 12:50 UTCJul 4, 15:35 UTC2h 45m
2026-07-04 GES441S - Jul 4, 11:00 UTCJul 4, 11:30 UTC30m
2026-07-04 GES441S - Jul 4, 08:50 UTCJul 4, 09:45 UTC55m
2026-07-03 GES442S - Jul 3, 13:20 UTCJul 3, 14:10 UTC50m
2026-07-03 GES442S - Jul 3, 11:35 UTCJul 3, 12:20 UTC45m
2026-07-03 GES441S BCN → MAD Jul 3, 09:25 UTCJul 3, 10:10 UTC45m
2026-07-02 GES441S - Jul 2, 12:10 UTCJul 2, 12:50 UTC40m
2026-07-01 GES442S - Jul 1, 16:00 UTCJul 1, 16:30 UTC30m
2026-07-01 GES441S - Jul 1, 09:10 UTCJul 1, 10:00 UTC50m
2026-07-01 GES441S - Jul 1, 07:30 UTCJul 1, 08:15 UTC45m
2026-07-01 GES441S - Jul 1, 05:20 UTCJul 1, 06:10 UTC50m
2026-06-29 GES442S - Jun 29, 16:55 UTCJun 29, 17:40 UTC45m
2026-06-29 GES441S MAD → BCN Jun 29, 15:19 UTCJun 29, 16:15 UTC55m
2026-06-29 GES441S BCN → MAD Jun 29, 11:29 UTCJun 29, 12:14 UTC45m
2026-06-28 GES442S MAD → BCN Jun 28, 16:14 UTCJun 28, 17:19 UTC1h 5m
2026-06-28 GES441S - Jun 28, 12:44 UTCJun 28, 13:49 UTC1h 5m
2026-06-28 GES441S - Jun 28, 10:19 UTCJun 28, 10:55 UTC35m
2026-06-24 GES441S - Jun 24, 11:14 UTCJun 24, 12:09 UTC55m
2026-06-24 GES441S - Jun 24, 08:20 UTCJun 24, 08:45 UTC25m
2026-06-22 GES441S BCN → MAD Jun 22, 16:45 UTCJun 22, 17:40 UTC55m
2026-06-21 GES441S MAD → BCN Jun 21, 15:15 UTCJun 21, 16:04 UTC50m
2026-06-21 GES441S - Jun 21, 12:35 UTCJun 21, 13:24 UTC50m
2026-06-21 GES441S - Jun 21, 08:35 UTCJun 21, 10:14 UTC1h 40m
2026-06-21 GES442S - Jun 21, 06:24 UTCJun 21, 07:34 UTC1h 10m
2026-06-20 GES441S - Jun 20, 11:25 UTCJun 20, 13:24 UTC2h 0m
2026-06-20 GES441S BCN → STN Jun 20, 08:25 UTCJun 20, 10:09 UTC1h 45m
2026-06-19 GES441S - Jun 19, 13:14 UTCJun 19, 14:49 UTC1h 35m
2026-06-19 GES441S - Jun 19, 10:39 UTCJun 19, 11:59 UTC1h 20m
2026-06-18 GES441S - Jun 18, 15:00 UTCJun 18, 16:30 UTC1h 30m
2026-06-18 GES441S BCN → LEI Jun 18, 09:10 UTCJun 18, 10:15 UTC1h 5m
2026-06-16 GES441S MAD → BCN Jun 16, 13:00 UTCJun 16, 13:50 UTC50m
2026-06-16 GES441S BCN → MAD Jun 16, 09:45 UTCJun 16, 10:35 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-NBS page for operator, model, and routing details .

Mode-S 346187 frequently asked

What is Mode-S code 346187?
346187 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-NBS.
Where is Mode-S 346187 registered?
Mode-S code 346187 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 346187 broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 346187, octal 15060607, decimal 3,432,839.
What flights does 346187 operate?
Mode-S 346187 has broadcast 2 distinct callsigns, including GES441S, GES442S.