Apparatus

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sensors Mode-S transponder

50031C

ICAO 24-bit transponder address · allocated to San Marino

Currently assigned to T7-EMI · HAWKER BEECHCRAFT Hawker 750/850

Hex
50031C
Octal
24001434
Decimal
5,243,676
Country
SM
Tail
T7-EMI
Type
H25B
No current signal · last broadcast 6h ago
Flights observed
54
Distinct callsigns
2
Country
SM
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 50031C.

Country allocation

The ICAO 24-bit address 50031C falls within the block assigned to San Marino (SM) by ICAO Annex 10, Volume III. Every aircraft registered in San Marino 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
T7EMI - 37 2026-07-04
LSM25B - 17 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-04 LSM25B PEG → RKV Jul 4, 13:40 UTCJul 4, 18:25 UTC4h 45m
2026-07-04 LSM25B NCE → PEG Jul 4, 11:15 UTCJul 4, 12:00 UTC45m
2026-07-04 T7EMI - Jul 4, 08:40 UTCJul 4, 09:50 UTC1h 10m
2026-07-03 T7EMI - Jul 3, 10:00 UTCJul 3, 11:10 UTC1h 10m
2026-07-02 T7EMI - Jul 2, 09:55 UTCJul 2, 13:10 UTC3h 15m
2026-07-02 T7EMI - Jul 2, 05:55 UTCJul 2, 06:41 UTC46m
2026-07-02 T7EMI - Jul 2, 04:35 UTCJul 2, 04:55 UTC20m
2026-06-29 T7EMI - Jun 29, 11:10 UTCJun 29, 14:34 UTC3h 25m
2026-06-29 T7EMI LIN → LBG Jun 29, 07:44 UTCJun 29, 08:50 UTC1h 5m
2026-06-28 LSM25B GRZ → LIN Jun 28, 18:10 UTCJun 28, 19:09 UTC1h 0m
2026-06-27 LSM25B - Jun 27, 10:50 UTCJun 27, 11:09 UTC20m
2026-06-27 LSM25B - Jun 27, 09:04 UTCJun 27, 09:55 UTC50m
2026-06-24 LSM25B - Jun 24, 13:30 UTCJun 24, 14:50 UTC1h 20m
2026-06-24 LSM25B LIN → AMS Jun 24, 08:09 UTCJun 24, 09:39 UTC1h 30m
2026-06-23 LSM25B MLA → LIN Jun 23, 10:29 UTCJun 23, 12:15 UTC1h 45m
2026-06-23 LSM25B ZRH → MLA Jun 23, 07:25 UTCJun 23, 09:34 UTC2h 10m
2026-06-21 LSM25B - Jun 21, 15:59 UTCJun 21, 16:59 UTC1h 0m
2026-06-21 LSM25B LIN → MAD Jun 21, 10:54 UTCJun 21, 12:49 UTC1h 55m
2026-06-19 LSM25B IBZ → LIN Jun 19, 09:34 UTCJun 19, 11:04 UTC1h 30m
2026-06-19 LSM25B NCE → IBZ Jun 19, 07:19 UTCJun 19, 08:29 UTC1h 10m
2026-06-17 T7EMI - Jun 17, 15:35 UTCJun 17, 17:55 UTC2h 20m
2026-06-12 T7EMI - Jun 12, 14:50 UTCJun 12, 17:15 UTC2h 25m
2026-06-09 T7EMI - Jun 9, 16:45 UTCJun 9, 17:00 UTC15m
2026-06-09 T7EMI NCE → LBG Jun 9, 08:10 UTCJun 9, 09:20 UTC1h 10m
2026-06-09 T7EMI ZRH → NCE Jun 9, 05:50 UTCJun 9, 06:45 UTC55m
2026-06-08 T7EMI STR → ZRH Jun 8, 07:10 UTCJun 8, 07:30 UTC20m
2026-06-07 T7EMI NCE → STR Jun 7, 19:25 UTCJun 7, 20:50 UTC1h 25m
2026-06-07 T7EMI BRN → NCE Jun 7, 14:55 UTCJun 7, 15:55 UTC1h 0m
2026-06-07 T7EMI - Jun 7, 10:30 UTCJun 7, 12:40 UTC2h 10m
2026-06-05 T7EMI - Jun 5, 23:05 UTCJun 6, 18:19 UTC19h 15m
2026-06-05 T7EMI - Jun 5, 21:05 UTCJun 6, 18:19 UTC21h 15m
2026-06-05 T7EMI - Jun 5, 20:45 UTCJun 6, 18:19 UTC21h 35m
2026-06-05 T7EMI - Jun 5, 15:45 UTCJun 5, 19:25 UTC3h 40m
2026-06-04 T7EMI - Jun 4, 07:55 UTCJun 4, 11:00 UTC3h 5m
2026-06-03 T7EMI ZRH → NCE Jun 3, 14:20 UTCJun 3, 15:05 UTC45m
2026-06-01 T7EMI BRN → ZRH Jun 1, 16:50 UTCJun 1, 17:10 UTC20m
2026-06-01 T7EMI - Jun 1, 15:15 UTCJun 1, 16:00 UTC45m
2026-06-01 T7EMI ISL → LBG Jun 1, 09:10 UTCJun 1, 12:35 UTC3h 25m
2026-05-31 T7EMI - May 31, 16:05 UTCMay 31, 18:40 UTC2h 35m
2026-05-31 T7EMI - May 31, 14:15 UTCMay 31, 15:25 UTC1h 10m
2026-05-29 T7EMI NCE → LBG May 29, 09:15 UTCMay 29, 10:35 UTC1h 20m
2026-05-26 T7EMI BEG → NCE May 26, 19:20 UTCMay 26, 20:54 UTC1h 35m
2026-05-26 T7EMI - May 26, 16:00 UTCMay 26, 18:05 UTC2h 5m
2026-05-25 T7EMI - May 25, 13:10 UTCMay 25, 15:05 UTC1h 55m
2026-05-25 T7EMI - May 25, 10:55 UTCMay 25, 11:30 UTC35m
2026-05-24 T7EMI - May 24, 08:20 UTCMay 24, 09:00 UTC40m
2026-05-24 T7EMI NCE → FCO May 24, 05:40 UTCMay 24, 06:35 UTC55m
2026-05-21 T7EMI LUX → NCE May 21, 15:00 UTCMay 21, 16:05 UTC1h 5m
2026-05-21 T7EMI NCE → LUX May 21, 08:15 UTCMay 21, 09:25 UTC1h 10m
2026-05-18 T7EMI - May 18, 17:45 UTCMay 18, 18:45 UTC59m

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 T7-EMI page for operator, model, and routing details .

Mode-S 50031C frequently asked

What is Mode-S code 50031C?
50031C is an ICAO 24-bit transponder address. Allocated to San Marino. Assigned to T7-EMI.
Where is Mode-S 50031C registered?
Mode-S code 50031C is allocated to San Marino (SM). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 50031C broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 50031C, octal 24001434, decimal 5,243,676.
What flights does 50031C operate?
Mode-S 50031C has broadcast 2 distinct callsigns, including T7EMI, LSM25B.