Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A4355C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N370SA · PIPER PA-23 · operated by SOUTHERN AIRCRAFT CONSULTANCY INC TRUSTEE

Hex
A4355C
Octal
51032534
Decimal
10,761,564
Country
US
Tail
N370SA
Type
PA23
No current signal · last broadcast Jul 24, 13:15 UTC
Flights observed
59
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 13:15 UTC

Last known position

Most recent position reported by Mode-S A4355C.

Country allocation

The ICAO 24-bit address A4355C falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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 1 distinct

Callsign Airline Flights Last seen
N370SA - 59 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 N370SA - Jul 24, 13:00 UTCJul 24, 13:15 UTC15m
2026-07-21 N370SA - Jul 21, 14:05 UTCJul 21, 14:25 UTC20m
2026-07-21 N370SA - Jul 21, 11:45 UTCJul 21, 12:15 UTC30m
2026-07-20 N370SA - Jul 20, 14:25 UTCJul 20, 14:45 UTC20m
2026-07-13 N370SA - Jul 13, 18:15 UTCJul 13, 18:35 UTC20m
2026-07-13 N370SA - Jul 13, 16:00 UTCJul 13, 16:15 UTC15m
2026-07-13 N370SA - Jul 13, 14:30 UTCJul 13, 14:55 UTC25m
2026-07-13 N370SA - Jul 13, 12:20 UTCJul 13, 12:40 UTC20m
2026-07-10 N370SA - Jul 10, 15:35 UTCJul 10, 16:05 UTC30m
2026-07-10 N370SA - Jul 10, 13:25 UTCJul 10, 13:50 UTC25m
2026-07-08 N370SA - Jul 8, 15:45 UTCJul 8, 17:15 UTC1h 30m
2026-07-06 N370SA - Jul 6, 19:05 UTCJul 6, 19:25 UTC20m
2026-07-06 N370SA - Jul 6, 15:40 UTCJul 6, 16:45 UTC1h 5m
2026-07-06 N370SA - Jul 6, 13:15 UTCJul 6, 13:40 UTC25m
2026-07-03 N370SA - Jul 3, 14:40 UTCJul 3, 15:05 UTC25m
2026-07-03 N370SA - Jul 3, 12:25 UTCJul 3, 12:45 UTC20m
2026-06-25 N370SA - Jun 25, 16:09 UTCJun 25, 16:24 UTC15m
2026-06-25 N370SA - Jun 25, 13:45 UTCJun 25, 14:04 UTC20m
2026-06-23 N370SA - Jun 23, 14:39 UTCJun 23, 14:49 UTC10m
2026-06-23 N370SA - Jun 23, 12:09 UTCJun 23, 12:29 UTC20m
2026-06-21 N370SA - Jun 21, 14:44 UTCJun 21, 15:05 UTC20m
2026-06-21 N370SA - Jun 21, 12:24 UTCJun 21, 12:44 UTC20m
2026-06-18 N370SA - Jun 18, 15:05 UTCJun 18, 15:30 UTC25m
2026-06-18 N370SA - Jun 18, 12:45 UTCJun 18, 13:05 UTC20m
2026-06-17 N370SA - Jun 17, 16:55 UTCJun 17, 17:10 UTC15m
2026-06-17 N370SA - Jun 17, 14:50 UTCJun 17, 15:10 UTC20m
2026-06-15 N370SA - Jun 15, 18:35 UTCJun 15, 18:45 UTC10m
2026-06-15 N370SA - Jun 15, 17:34 UTCJun 15, 17:50 UTC15m
2026-06-15 N370SA - Jun 15, 14:55 UTCJun 15, 15:10 UTC15m
2026-06-13 N370SA - Jun 13, 15:30 UTCJun 13, 15:45 UTC15m
2026-06-13 N370SA - Jun 13, 13:00 UTCJun 13, 13:25 UTC25m
2026-06-12 N370SA - Jun 12, 15:05 UTCJun 12, 15:25 UTC20m
2026-06-12 N370SA - Jun 12, 12:30 UTCJun 12, 12:55 UTC25m
2026-06-10 N370SA - Jun 10, 14:55 UTCJun 10, 15:15 UTC20m
2026-06-10 N370SA - Jun 10, 12:10 UTCJun 10, 12:30 UTC20m
2026-06-04 N370SA - Jun 4, 16:05 UTCJun 4, 16:30 UTC25m
2026-06-04 N370SA - Jun 4, 13:35 UTCJun 4, 14:00 UTC25m
2026-05-25 N370SA - May 25, 19:05 UTCMay 25, 19:20 UTC15m
2026-05-25 N370SA - May 25, 16:50 UTCMay 25, 17:05 UTC15m
2026-05-24 N370SA - May 24, 19:25 UTCMay 24, 19:40 UTC15m
2026-05-24 N370SA - May 24, 18:15 UTCMay 24, 18:30 UTC15m
2026-05-24 N370SA - May 24, 15:45 UTCMay 24, 16:05 UTC20m
2026-05-22 N370SA - May 22, 15:50 UTCMay 22, 16:15 UTC25m
2026-05-22 N370SA - May 22, 13:20 UTCMay 22, 13:45 UTC25m
2026-05-21 N370SA - May 21, 15:55 UTCMay 21, 16:10 UTC15m
2026-04-27 N370SA - Apr 27, 18:05 UTCApr 27, 18:30 UTC25m
2026-04-27 N370SA - Apr 27, 15:50 UTCApr 27, 16:15 UTC25m
2026-04-27 N370SA - Apr 27, 14:35 UTCApr 27, 14:55 UTC20m
2026-04-27 N370SA - Apr 27, 12:10 UTCApr 27, 12:35 UTC25m
2026-04-23 N370SA - Apr 23, 17:35 UTCApr 23, 18:00 UTC24m

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 N370SA page for operator, model, and routing details .

Mode-S A4355C frequently asked

What is Mode-S code A4355C?
A4355C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N370SA.
Where is Mode-S A4355C registered?
Mode-S code A4355C is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A4355C broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 13:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4355C, octal 51032534, decimal 10,761,564.
What flights does A4355C operate?
Mode-S A4355C has broadcast 1 distinct callsign, including N370SA.