Apparatus

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sensors Mode-S transponder

AB7402

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N837SY · BOEING 737-800 · operated by SUN COUNTRY INC

Hex
AB7402
Octal
52672002
Decimal
11,236,354
Country
US
Tail
N837SY
Type
B738
No current signal · last broadcast 2h ago
Flights observed
243
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AB7402.

Country allocation

The ICAO 24-bit address AB7402 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 20 distinct

Callsign Airline Flights Last seen
SCX8724 Sun Country Airlines 5 2026-05-17
SCX920 Sun Country Airlines 4 2026-05-24
SCX8720 - 4 2026-07-17
SCX408 - 4 2026-07-10
SCX407 Sun Country Airlines 4 2026-07-09
SCX286 - 4 2026-06-18
SCX285 - 4 2026-06-17
SCX919 Sun Country Airlines 3 2026-05-24
SCX8774 Sun Country Airlines 3 2026-05-17
SCX8661 Sun Country Airlines 3 2026-05-09
SCX8652 Sun Country Airlines 3 2026-05-27
SCX8651 Sun Country Airlines 3 2026-05-26
SCX602 Sun Country Airlines 3 2026-05-05
SCX601 Sun Country Airlines 3 2026-05-05
SCX383 - 3 2026-07-09
SCX214 Sun Country Airlines 3 2026-05-21
SCX213 Sun Country Airlines 3 2026-05-21
SCX8935 Sun Country Airlines 2 2026-06-04
SCX8775 Sun Country Airlines 2 2026-04-14
SCX8770 Sun Country Airlines 2 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 SCX1947 - Jul 17, 19:55 UTCJul 17, 20:29 UTC35m
2026-07-17 SCX1634 PDX → SFO Jul 17, 15:40 UTCJul 17, 18:34 UTC2h 55m
2026-07-17 SCX8720 SEA → PDX Jul 17, 07:14 UTCJul 17, 07:44 UTC30m
2026-07-17 SCX1637 MSP → SEA Jul 17, 00:40 UTCJul 17, 04:04 UTC3h 25m
2026-07-16 SCX1228 - Jul 16, 17:45 UTCJul 16, 20:25 UTC2h 40m
2026-07-16 SCX1227 - Jul 16, 14:05 UTCJul 16, 16:05 UTC2h 0m
2026-07-15 SCX284 SEA → MSP Jul 15, 22:15 UTCJul 16, 01:05 UTC2h 50m
2026-07-15 SCX283 MSP → SEA Jul 15, 16:45 UTCJul 15, 20:00 UTC3h 15m
2026-07-13 SCX346 MCO → MSP Jul 13, 23:30 UTCJul 14, 02:20 UTC2h 50m
2026-07-13 SCX345 MSP → MCO Jul 13, 18:50 UTCJul 13, 22:10 UTC3h 20m
2026-07-13 SCX1908 - Jul 13, 15:25 UTCJul 13, 16:40 UTC1h 15m
2026-07-13 SCX1907 MSP → DTW Jul 13, 13:00 UTCJul 13, 14:15 UTC1h 15m
2026-07-13 SCX396 SFO → MSP Jul 13, 01:35 UTCJul 13, 04:50 UTC3h 15m
2026-07-12 SCX395 MSP → SFO Jul 12, 20:20 UTCJul 12, 23:55 UTC3h 35m
2026-07-12 SCX252 BOS → MSP Jul 12, 16:35 UTCJul 12, 19:05 UTC2h 30m
2026-07-12 SCX251 MSP → BOS Jul 12, 12:50 UTCJul 12, 15:15 UTC2h 25m
2026-07-10 SCX1982 - Jul 10, 23:55 UTCJul 11, 02:50 UTC2h 55m
2026-07-10 SCX8191 - Jul 10, 22:10 UTCJul 10, 23:00 UTC50m
2026-07-10 SCX8191 - Jul 10, 20:25 UTCJul 10, 21:25 UTC1h 0m
2026-07-10 SCX8190 - Jul 10, 17:05 UTCJul 10, 18:10 UTC1h 5m
2026-07-10 SCX8190 - Jul 10, 15:30 UTCJul 10, 15:50 UTC20m
2026-07-10 SCX1981 MSP → BDL Jul 10, 12:05 UTCJul 10, 14:20 UTC2h 15m
2026-07-10 SCX408 - Jul 10, 01:10 UTCJul 10, 04:20 UTC3h 10m
2026-07-09 SCX407 MSP → SAN Jul 9, 20:20 UTCJul 9, 23:55 UTC3h 35m
2026-07-09 SCX384 RSW → MSP Jul 9, 15:30 UTCJul 9, 18:30 UTC3h 0m
2026-07-09 SCX383 MSP → RSW Jul 9, 11:10 UTCJul 9, 14:05 UTC2h 55m
2026-07-09 SCX408 - Jul 9, 01:20 UTCJul 9, 04:30 UTC3h 10m
2026-07-08 SCX407 MSP → SAN Jul 8, 20:25 UTCJul 8, 23:40 UTC3h 15m
2026-07-08 SCX568 JFK → MSP Jul 8, 16:00 UTCJul 8, 18:20 UTC2h 20m
2026-07-08 SCX567 MSP → JFK Jul 8, 12:25 UTCJul 8, 14:40 UTC2h 15m
2026-07-07 SCX9037 - Jul 7, 00:10 UTCJul 7, 02:20 UTC2h 10m
2026-07-04 SCX193 MSP → BWI Jul 4, 18:25 UTCJul 4, 20:30 UTC2h 5m
2026-07-03 SCX1948 - Jul 3, 16:40 UTCJul 3, 18:50 UTC2h 10m
2026-07-03 SCX1947 - Jul 3, 12:55 UTCJul 3, 14:55 UTC2h 0m
2026-07-03 SCX636 - Jul 3, 01:25 UTCJul 3, 03:25 UTC2h 0m
2026-07-02 SCX635 MSP → BNA Jul 2, 21:45 UTCJul 2, 23:40 UTC1h 55m
2026-07-02 SCX1822 - Jul 2, 17:40 UTCJul 2, 20:15 UTC2h 35m
2026-07-02 SCX1821 - Jul 2, 14:10 UTCJul 2, 16:15 UTC2h 5m
2026-07-01 SCX500 IND → MSP Jul 1, 22:30 UTCJul 1, 23:45 UTC1h 15m
2026-07-01 SCX499 MSP → IND Jul 1, 20:00 UTCJul 1, 21:05 UTC1h 5m
2026-06-29 SCX604 PHX → MSP Jun 29, 23:39 UTCJun 30, 02:20 UTC2h 41m
2026-06-29 SCX603 MSP → PHX Jun 29, 19:15 UTCJun 29, 22:10 UTC2h 55m
2026-06-29 SCX566 - Jun 29, 15:09 UTCJun 29, 17:40 UTC2h 30m
2026-06-29 SCX565 MSP → JFK Jun 29, 11:29 UTCJun 29, 13:49 UTC2h 20m
2026-06-29 SCX290 SEA → MSP Jun 29, 07:15 UTCJun 29, 10:15 UTC3h 0m
2026-06-29 SCX289 MSP → SEA Jun 29, 02:30 UTCJun 29, 05:34 UTC3h 5m
2026-06-28 SCX303 MSP → BZN Jun 28, 19:59 UTCJun 29, 01:14 UTC5h 15m
2026-06-28 SCX296 - Jun 28, 01:44 UTCJun 28, 04:50 UTC3h 5m
2026-06-27 SCX295 MSP → PDX Jun 27, 20:59 UTCJun 28, 00:09 UTC3h 10m
2026-06-27 SCX652 DEN → MSP Jun 27, 18:20 UTCJun 27, 19:45 UTC1h 25m

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 N837SY page for operator, model, and routing details .

Mode-S AB7402 frequently asked

What is Mode-S code AB7402?
AB7402 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N837SY.
Where is Mode-S AB7402 registered?
Mode-S code AB7402 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 AB7402 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB7402, octal 52672002, decimal 11,236,354.
What flights does AB7402 operate?
Mode-S AB7402 has broadcast 20 distinct callsigns, including SCX8724, SCX920, SCX8720, SCX408, SCX407.