Apparatus

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sensors Mode-S transponder

346199

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-NFN · BOEING 757-200

Hex
346199
Octal
15060631
Decimal
3,432,857
Country
ES
Tail
EC-NFN
Type
B752
No current signal · last broadcast Jul 24, 22:00 UTC
Flights observed
237
Distinct callsigns
20
Country
ES
Last broadcast
Jul 24, 22:00 UTC

Last known position

Most recent position reported by Mode-S 346199.

Country allocation

The ICAO 24-bit address 346199 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
BCS1684 - 18 2026-06-26
RGN7859 - 17 2026-07-24
RGN7858 - 17 2026-07-24
BCS5AY European Air Transport 16 2026-06-25
BCS1928 - 13 2026-06-25
BCS1683 - 13 2026-06-26
BCS116 - 13 2026-06-24
BCS7CK - 12 2026-06-24
BCS225P European Air Transport 12 2026-06-24
BCS1730 - 11 2026-06-25
BCS7613 - 10 2026-06-23
BCS92P - 9 2026-06-25
BCS115 European Air Transport 9 2026-06-24
BCS3WP - 8 2026-06-20
BCS2234 - 7 2026-06-27
BCS47H European Air Transport 6 2026-05-29
SWT625 - 4 2026-06-30
SWT624P - 4 2026-06-30
BCS9LE European Air Transport 4 2026-06-02
BCS5917 - 4 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 RGN7859 - Jul 24, 20:35 UTCJul 24, 22:00 UTC1h 25m
2026-07-24 RGN7858 LEJ → PSA Jul 24, 04:00 UTCJul 24, 05:20 UTC1h 20m
2026-07-23 RGN7859 - Jul 23, 20:35 UTCJul 23, 22:10 UTC1h 35m
2026-07-23 RGN7858 LEJ → PSA Jul 23, 03:40 UTCJul 23, 05:10 UTC1h 30m
2026-07-22 RGN7859 - Jul 22, 21:10 UTCJul 22, 22:35 UTC1h 25m
2026-07-22 RGN7858 LEJ → PSA Jul 22, 03:40 UTCJul 22, 05:05 UTC1h 25m
2026-07-21 RGN7859 - Jul 21, 21:05 UTCJul 21, 22:25 UTC1h 20m
2026-07-21 RGN7858 LEJ → PSA Jul 21, 03:35 UTCJul 21, 05:05 UTC1h 30m
2026-07-20 RGN7859 PSA → LEJ Jul 20, 20:45 UTCJul 20, 22:10 UTC1h 25m
2026-07-20 RGN7858 LEJ → PSA Jul 20, 01:30 UTCJul 20, 03:00 UTC1h 30m
2026-07-17 RGN7859 - Jul 17, 20:44 UTCJul 17, 22:15 UTC1h 30m
2026-07-17 RGN7858 LEJ → PSA Jul 17, 04:49 UTCJul 17, 06:10 UTC1h 20m
2026-07-16 RGN7859 - Jul 16, 20:35 UTCJul 16, 21:50 UTC1h 15m
2026-07-16 RGN7858 - Jul 16, 03:30 UTCJul 16, 04:50 UTC1h 20m
2026-07-15 RGN7859 - Jul 15, 21:45 UTCJul 15, 23:20 UTC1h 35m
2026-07-15 RGN7858 LEJ → PSA Jul 15, 03:40 UTCJul 15, 05:05 UTC1h 25m
2026-07-14 RGN7859 - Jul 14, 20:35 UTCJul 14, 21:50 UTC1h 15m
2026-07-14 RGN7858 LEJ → PSA Jul 14, 03:45 UTCJul 14, 05:10 UTC1h 25m
2026-07-13 RGN7859 - Jul 13, 20:45 UTCJul 13, 22:10 UTC1h 25m
2026-07-13 RGN7858 LEJ → PSA Jul 13, 01:50 UTCJul 13, 03:15 UTC1h 25m
2026-07-10 RGN7859 - Jul 10, 20:40 UTCJul 10, 22:00 UTC1h 20m
2026-07-10 RGN7858 LEJ → PSA Jul 10, 03:50 UTCJul 10, 05:15 UTC1h 25m
2026-07-09 RGN7859 - Jul 9, 20:30 UTCJul 9, 21:55 UTC1h 25m
2026-07-09 RGN7858 LEJ → PSA Jul 9, 05:00 UTCJul 9, 06:15 UTC1h 15m
2026-07-08 RGN7859 - Jul 8, 20:35 UTCJul 8, 22:05 UTC1h 30m
2026-07-08 RGN7858 LEJ → PSA Jul 8, 03:50 UTCJul 8, 05:05 UTC1h 15m
2026-07-07 RGN7859 - Jul 7, 20:35 UTCJul 7, 22:05 UTC1h 30m
2026-07-07 RGN7858 LEJ → PSA Jul 7, 03:50 UTCJul 7, 05:10 UTC1h 20m
2026-07-06 RGN7859 - Jul 6, 20:40 UTCJul 6, 22:05 UTC1h 25m
2026-07-06 RGN7858 LEJ → PSA Jul 6, 01:50 UTCJul 6, 03:10 UTC1h 20m
2026-07-03 RGN7859 - Jul 3, 20:40 UTCJul 3, 22:05 UTC1h 25m
2026-07-03 RGN7858 LEJ → PSA Jul 3, 03:40 UTCJul 3, 05:00 UTC1h 20m
2026-07-02 RGN7859 - Jul 2, 20:55 UTCJul 2, 22:15 UTC1h 20m
2026-07-02 RGN7858 LEJ → PSA Jul 2, 03:55 UTCJul 2, 05:10 UTC1h 15m
2026-07-01 RGN9009 - Jul 1, 19:05 UTCJul 1, 20:50 UTC1h 45m
2026-07-01 RGN9008 LEJ → SOF Jul 1, 03:50 UTCJul 1, 05:45 UTC1h 55m
2026-06-30 SWT625 - Jun 30, 10:00 UTCJun 30, 13:00 UTC3h 0m
2026-06-30 SWT624P LEJ → TNG Jun 30, 05:20 UTCJun 30, 08:40 UTC3h 20m
2026-06-29 SWT625 - Jun 29, 13:00 UTCJun 29, 16:04 UTC3h 5m
2026-06-29 SWT624P - Jun 29, 07:05 UTCJun 29, 10:24 UTC3h 20m
2026-06-28 SWT625 - Jun 28, 10:04 UTCJun 28, 13:00 UTC2h 55m
2026-06-28 SWT624P - Jun 28, 05:29 UTCJun 28, 08:55 UTC3h 25m
2026-06-27 SWT625 - Jun 27, 10:25 UTCJun 27, 13:15 UTC2h 50m
2026-06-27 SWT624P - Jun 27, 07:30 UTCJun 27, 08:39 UTC1h 10m
2026-06-27 BCS2234 EMA → MAD Jun 27, 02:29 UTCJun 27, 04:44 UTC2h 15m
2026-06-27 BCS2234 - Jun 27, 00:44 UTCJun 27, 01:04 UTC20m
2026-06-26 BCS2234 BLQ → STN Jun 26, 21:50 UTCJun 26, 23:39 UTC1h 50m
2026-06-26 BCS1683 - Jun 26, 18:15 UTCJun 26, 19:04 UTC50m
2026-06-26 BCS1684 LEJ → MRS Jun 26, 02:30 UTCJun 26, 04:04 UTC1h 35m
2026-06-25 BCS92P - Jun 25, 22:49 UTCJun 25, 23:44 UTC55m

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

Mode-S 346199 frequently asked

What is Mode-S code 346199?
346199 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-NFN.
Where is Mode-S 346199 registered?
Mode-S code 346199 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 346199 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 346199, octal 15060631, decimal 3,432,857.
What flights does 346199 operate?
Mode-S 346199 has broadcast 20 distinct callsigns, including BCS1684, RGN7859, RGN7858, BCS5AY, BCS1928.