Apparatus

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sensors Mode-S transponder

AC7BF8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N903SY · BOEING 737-900 · operated by SUN COUNTRY AIRLINES

Hex
AC7BF8
Octal
53075770
Decimal
11,303,928
Country
US
Tail
N903SY
Type
B739
Broadcasting now · callsign SCX253 · 37,000 ft
Flights observed
244
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 18:25 UTC

Current position

AC7BF8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AC7BF8 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
SCX341 - 20 2026-07-11
SCX342 - 17 2026-07-11
SCX425 - 15 2026-07-10
SCX426 - 14 2026-07-11
SCX107 Sun Country Airlines 11 2026-07-16
SCX384 Sun Country Airlines 10 2026-07-26
SCX252 - 10 2026-07-10
SCX251 - 10 2026-07-10
SCX108 Sun Country Airlines 10 2026-07-17
SCX383 Sun Country Airlines 7 2026-07-26
SCX601 - 6 2026-06-29
SCX214 Sun Country Airlines 6 2026-07-24
SCX213 Sun Country Airlines 6 2026-07-24
SCX608 Sun Country Airlines 5 2026-06-06
SCX607 Sun Country Airlines 5 2026-06-05
SCX604 Sun Country Airlines 5 2026-07-22
SCX603 Sun Country Airlines 5 2026-07-21
SCX602 - 5 2026-06-29
SCX606 Sun Country Airlines 4 2026-07-26
SCX605 Sun Country Airlines 4 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SCX384 RSW → MSP Jul 26, 15:15 UTCJul 26, 18:20 UTC3h 5m
2026-07-26 SCX383 MSP → RSW Jul 26, 11:00 UTCJul 26, 13:50 UTC2h 50m
2026-07-26 SCX606 PHX → MSP Jul 26, 01:05 UTCJul 26, 04:00 UTC2h 55m
2026-07-25 SCX605 MSP → PHX Jul 25, 19:55 UTCJul 25, 22:55 UTC3h 0m
2026-07-25 SCX106 LAS → MSP Jul 25, 01:00 UTCJul 25, 03:35 UTC2h 35m
2026-07-24 SCX105 MSP → LAS Jul 24, 20:45 UTCJul 24, 23:35 UTC2h 50m
2026-07-24 SCX214 TPA → MSP Jul 24, 15:55 UTCJul 24, 18:55 UTC3h 0m
2026-07-24 SCX213 MSP → TPA Jul 24, 11:45 UTCJul 24, 14:25 UTC2h 40m
2026-07-23 SCX346 MCO → MSP Jul 23, 23:10 UTCJul 24, 02:05 UTC2h 55m
2026-07-23 SCX345 MSP → MCO Jul 23, 19:10 UTCJul 23, 21:40 UTC2h 30m
2026-07-23 SCX254 BOS → MSP Jul 23, 15:00 UTCJul 23, 17:50 UTC2h 50m
2026-07-23 SCX253 MSP → BOS Jul 23, 11:25 UTCJul 23, 13:40 UTC2h 15m
2026-07-22 SCX424 LAX → MSP Jul 22, 17:50 UTCJul 22, 20:55 UTC3h 5m
2026-07-22 SCX423 MSP → LAX Jul 22, 12:50 UTCJul 22, 16:05 UTC3h 15m
2026-07-22 SCX604 PHX → MSP Jul 22, 00:00 UTCJul 22, 02:40 UTC2h 40m
2026-07-21 SCX603 MSP → PHX Jul 21, 19:40 UTCJul 21, 22:35 UTC2h 55m
2026-07-20 SCX384 RSW → MSP Jul 20, 16:50 UTCJul 20, 20:30 UTC3h 40m
2026-07-19 SCX389 MSP → RSW Jul 19, 23:00 UTCJul 20, 01:50 UTC2h 50m
2026-07-19 SCX104 LAS → MSP Jul 19, 18:20 UTCJul 19, 21:05 UTC2h 45m
2026-07-19 SCX103 MSP → LAS Jul 19, 13:55 UTCJul 19, 16:35 UTC2h 40m
2026-07-18 SCX424 - Jul 18, 18:50 UTCJul 18, 22:00 UTC3h 10m
2026-07-18 SCX423 MSP → LAX Jul 18, 13:35 UTCJul 18, 16:40 UTC3h 5m
2026-07-17 SCX384 RSW → MSP Jul 17, 18:00 UTCJul 17, 21:05 UTC3h 5m
2026-07-17 SCX383 MSP → RSW Jul 17, 13:50 UTCJul 17, 16:55 UTC3h 5m
2026-07-17 SCX108 LAS → MSP Jul 17, 03:20 UTCJul 17, 06:00 UTC2h 40m
2026-07-16 SCX107 MSP → LAS Jul 16, 21:15 UTCJul 16, 23:55 UTC2h 40m
2026-07-16 SCX384 RSW → MSP Jul 16, 16:15 UTCJul 16, 19:14 UTC3h 0m
2026-07-16 SCX383 MSP → RSW Jul 16, 11:50 UTCJul 16, 14:55 UTC3h 5m
2026-07-13 SCX384 RSW → MSP Jul 13, 17:25 UTCJul 13, 20:40 UTC3h 15m
2026-07-13 SCX389 MSP → RSW Jul 13, 00:50 UTCJul 13, 03:45 UTC2h 55m
2026-07-11 SCX342 - Jul 11, 16:50 UTCJul 11, 19:45 UTC2h 55m
2026-07-11 SCX341 - Jul 11, 12:30 UTCJul 11, 15:25 UTC2h 55m
2026-07-11 SCX426 - Jul 11, 01:15 UTCJul 11, 04:15 UTC3h 0m
2026-07-10 SCX425 - Jul 10, 20:20 UTCJul 10, 23:35 UTC3h 15m
2026-07-10 SCX252 BOS → MSP Jul 10, 16:15 UTCJul 10, 18:50 UTC2h 35m
2026-07-10 SCX251 MSP → BOS Jul 10, 12:15 UTCJul 10, 14:40 UTC2h 25m
2026-07-10 SCX108 LAS → MSP Jul 10, 00:50 UTCJul 10, 03:30 UTC2h 40m
2026-07-09 SCX107 MSP → LAS Jul 9, 20:25 UTCJul 9, 23:20 UTC2h 55m
2026-07-09 SCX252 BOS → MSP Jul 9, 16:05 UTCJul 9, 18:45 UTC2h 40m
2026-07-09 SCX251 MSP → BOS Jul 9, 12:25 UTCJul 9, 14:40 UTC2h 15m
2026-07-06 SCX384 RSW → MSP Jul 6, 16:50 UTCJul 6, 19:50 UTC3h 0m
2026-07-05 SCX389 MSP → RSW Jul 5, 23:50 UTCJul 6, 03:00 UTC3h 10m
2026-07-05 SCX104 LAS → MSP Jul 5, 18:20 UTCJul 5, 20:55 UTC2h 35m
2026-07-05 SCX103 MSP → LAS Jul 5, 14:10 UTCJul 5, 16:55 UTC2h 45m
2026-07-03 SCX604 PHX → MSP Jul 3, 23:05 UTCJul 4, 01:40 UTC2h 35m
2026-07-03 SCX603 MSP → PHX Jul 3, 18:50 UTCJul 3, 21:40 UTC2h 50m
2026-07-03 SCX254 BOS → MSP Jul 3, 14:50 UTCJul 3, 17:25 UTC2h 35m
2026-07-03 SCX253 MSP → BOS Jul 3, 11:05 UTCJul 3, 13:25 UTC2h 20m
2026-07-03 SCX606 PHX → MSP Jul 3, 02:10 UTCJul 3, 04:50 UTC2h 40m
2026-07-02 SCX605 MSP → PHX Jul 2, 22:05 UTCJul 3, 00:55 UTC2h 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 N903SY page for operator, model, and routing details .

Mode-S AC7BF8 frequently asked

What is Mode-S code AC7BF8?
AC7BF8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N903SY.
Where is Mode-S AC7BF8 registered?
Mode-S code AC7BF8 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 AC7BF8 broadcasting right now?
Yes. Mode-S AC7BF8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC7BF8, octal 53075770, decimal 11,303,928.
What flights does AC7BF8 operate?
Mode-S AC7BF8 has broadcast 20 distinct callsigns, including SCX341, SCX342, SCX425, SCX426, SCX107.