sensors Mode-S transponder

A49AA4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N396SA · operated by TRI-STATE CHARTER

Hex
A49AA4
Octal
51115244
Decimal
10,787,492
Country
US
Tail
N396SA
No current signal · last broadcast 14h ago
Flights observed
104
Distinct callsigns
1
Country
US
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S A49AA4.

Country allocation

The ICAO 24-bit address A49AA4 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
SGX396 - 104 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SGX396 - Jul 13, 20:10 UTCJul 13, 22:05 UTC1h 55m
2026-07-13 SGX396 - Jul 13, 04:10 UTCJul 13, 05:35 UTC1h 25m
2026-07-13 SGX396 - Jul 13, 00:40 UTCJul 13, 02:15 UTC1h 35m
2026-07-10 SGX396 - Jul 10, 15:20 UTCJul 10, 18:00 UTC2h 40m
2026-07-09 SGX396 - Jul 9, 22:40 UTCJul 9, 23:00 UTC20m
2026-07-09 SGX396 - Jul 9, 18:30 UTCJul 9, 21:30 UTC3h 0m
2026-07-09 SGX396 - Jul 9, 16:05 UTCJul 9, 16:20 UTC15m
2026-07-08 SGX396 - Jul 8, 16:40 UTCJul 8, 17:25 UTC45m
2026-07-08 SGX396 BED → TEB Jul 8, 00:45 UTCJul 8, 01:30 UTC45m
2026-07-07 SGX396 - Jul 7, 18:15 UTCJul 7, 19:30 UTC1h 15m
2026-07-07 SGX396 - Jul 7, 15:25 UTCJul 7, 16:20 UTC55m
2026-07-06 SGX396 - Jul 6, 20:00 UTCJul 6, 21:00 UTC1h 0m
2026-07-06 SGX396 - Jul 6, 17:05 UTCJul 6, 18:55 UTC1h 50m
2026-07-06 SGX396 - Jul 6, 15:30 UTCJul 6, 16:10 UTC40m
2026-07-05 SGX396 - Jul 5, 20:15 UTCJul 5, 23:00 UTC2h 45m
2026-07-05 SGX396 - Jul 5, 15:00 UTCJul 5, 17:55 UTC2h 55m
2026-07-04 SGX396 - Jul 4, 20:15 UTCJul 4, 20:55 UTC40m
2026-07-04 SGX396 - Jul 4, 02:50 UTCJul 4, 05:05 UTC2h 15m
2026-07-03 SGX396 NSB → FXE Jul 3, 17:45 UTCJul 3, 18:10 UTC25m
2026-07-03 SGX396 - Jul 3, 15:35 UTCJul 3, 16:10 UTC35m
2026-07-02 SGX396 - Jul 2, 16:30 UTCJul 2, 18:35 UTC2h 5m
2026-07-02 SGX396 - Jul 2, 12:15 UTCJul 2, 14:45 UTC2h 30m
2026-07-01 SGX396 - Jul 1, 17:20 UTCJul 1, 18:10 UTC50m
2026-07-01 SGX396 - Jul 1, 13:55 UTCJul 1, 15:05 UTC1h 10m
2026-06-30 SGX396 - Jun 30, 14:10 UTCJun 30, 15:25 UTC1h 15m
2026-06-29 SGX396 - Jun 29, 17:40 UTCJun 29, 18:34 UTC55m
2026-06-29 SGX396 ABE → BVY Jun 29, 14:50 UTCJun 29, 15:49 UTC1h 0m
2026-06-28 SGX396 - Jun 28, 20:25 UTCJun 28, 22:10 UTC1h 45m
2026-06-28 SGX396 - Jun 28, 18:59 UTCJun 28, 19:09 UTC10m
2026-06-28 SGX396 - Jun 28, 16:49 UTCJun 28, 18:05 UTC1h 15m
2026-06-27 SGX396 - Jun 27, 19:24 UTCJun 27, 20:39 UTC1h 15m
2026-06-27 SGX396 - Jun 27, 14:49 UTCJun 27, 15:30 UTC40m
2026-06-27 SGX396 - Jun 27, 11:59 UTCJun 27, 13:04 UTC1h 5m
2026-06-25 SGX396 - Jun 25, 16:24 UTCJun 25, 16:45 UTC20m
2026-06-25 SGX396 - Jun 25, 13:59 UTCJun 25, 15:24 UTC1h 25m
2026-06-24 SGX396 - Jun 24, 14:45 UTCJun 24, 16:05 UTC1h 20m
2026-06-23 SGX396 - Jun 23, 21:59 UTCJun 24, 00:34 UTC2h 35m
2026-06-23 SGX396 - Jun 23, 13:24 UTCJun 23, 15:50 UTC2h 25m
2026-06-23 SGX396 - Jun 23, 11:10 UTCJun 23, 11:29 UTC20m
2026-06-21 SGX396 - Jun 21, 23:05 UTCJun 22, 01:35 UTC2h 30m
2026-06-21 SGX396 - Jun 21, 19:09 UTCJun 21, 20:14 UTC1h 5m
2026-06-21 SGX396 - Jun 21, 02:24 UTCJun 21, 03:34 UTC1h 10m
2026-06-20 SGX396 - Jun 20, 12:59 UTCJun 20, 14:09 UTC1h 10m
2026-06-19 SGX396 - Jun 19, 18:34 UTCJun 19, 19:19 UTC45m
2026-06-19 SGX396 - Jun 19, 14:19 UTCJun 19, 15:49 UTC1h 30m
2026-06-18 SGX396 - Jun 18, 21:00 UTCJun 18, 21:35 UTC35m
2026-06-18 SGX396 - Jun 18, 15:10 UTCJun 18, 15:30 UTC20m
2026-06-14 SGX396 - Jun 14, 22:20 UTCJun 14, 22:55 UTC35m
2026-06-14 SGX396 - Jun 14, 20:25 UTCJun 14, 21:20 UTC55m
2026-06-14 SGX396 - Jun 14, 17:20 UTCJun 14, 19:10 UTC1h 50m

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 N396SA page for operator, model, and routing details .

Mode-S A49AA4 frequently asked

What is Mode-S code A49AA4?
A49AA4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N396SA.
Where is Mode-S A49AA4 registered?
Mode-S code A49AA4 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 A49AA4 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A49AA4, octal 51115244, decimal 10,787,492.
What flights does A49AA4 operate?
Mode-S A49AA4 has broadcast 1 distinct callsign, including SGX396.