Apparatus

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sensors Mode-S transponder

AB7B70

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N839SY · BOEING 737-800 · operated by BANK OF UTAH TRUSTEE

Hex
AB7B70
Octal
52675560
Decimal
11,238,256
Country
US
Tail
N839SY
Type
B738
No current signal · last broadcast 1d ago
Flights observed
48
Distinct callsigns
10
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AB7B70.

Country allocation

The ICAO 24-bit address AB7B70 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 10 distinct

Callsign Airline Flights Last seen
SCX8502 Sun Country Airlines 15 2026-06-01
SCX8501 Sun Country Airlines 15 2026-05-31
SCX8711 Sun Country Airlines 7 2026-04-26
SCX9039 Sun Country Airlines 4 2026-05-30
SCX8779 Sun Country Airlines 2 2026-04-17
SCX9040 Sun Country Airlines 1 2026-05-19
SCX9032 Sun Country Airlines 1 2026-05-27
SCX8773 Sun Country Airlines 1 2026-04-18
SCX8729 Sun Country Airlines 1 2026-04-17
SCX8723 Sun Country Airlines 1 2026-04-18

Recent flights last 48

DateFlightRouteTakeoffLandingDuration
2026-06-01 SCX8502 KOA → LAX Jun 1, 03:10 UTCJun 1, 03:50 UTC40m
2026-05-31 SCX8502 KOA → LAX May 31, 23:00 UTCMay 31, 23:05 UTC5m
2026-05-31 SCX8501 LAX → KOA May 31, 21:25 UTCMay 31, 21:30 UTC5m
2026-05-31 SCX8501 LAX → KOA May 31, 16:00 UTCMay 31, 16:35 UTC35m
2026-05-30 SCX9039 SFB → MSP May 30, 19:55 UTCMay 30, 20:35 UTC40m
2026-05-27 SCX9032 SFB → MSP May 27, 18:55 UTCMay 27, 19:30 UTC35m
2026-05-26 SCX8502 KOA → LAX May 26, 03:25 UTCMay 26, 04:04 UTC40m
2026-05-25 SCX8502 KOA → LAX May 25, 22:55 UTCMay 25, 23:04 UTC10m
2026-05-25 SCX8501 LAX → KOA May 25, 21:24 UTCMay 25, 21:35 UTC10m
2026-05-25 SCX8501 LAX → KOA May 25, 16:35 UTCMay 25, 17:05 UTC30m
2026-05-22 SCX8502 KOA → LAX May 22, 03:20 UTCMay 22, 04:00 UTC40m
2026-05-21 SCX8502 KOA → LAX May 21, 23:00 UTCMay 21, 23:10 UTC10m
2026-05-21 SCX8501 LAX → KOA May 21, 21:35 UTCMay 21, 21:40 UTC5m
2026-05-21 SCX8501 LAX → KOA May 21, 16:30 UTCMay 21, 16:55 UTC25m
2026-05-20 SCX9039 SFB → MSP May 20, 19:35 UTCMay 20, 23:10 UTC3h 35m
2026-05-19 SCX9040 MSP → CMH May 19, 04:50 UTCMay 19, 07:40 UTC2h 50m
2026-05-18 SCX8502 KOA → LAX May 18, 03:01 UTCMay 18, 03:50 UTC50m
2026-05-17 SCX8502 KOA → LAX May 17, 22:45 UTCMay 17, 22:55 UTC10m
2026-05-17 SCX8501 LAX → KOA May 17, 21:30 UTCMay 17, 21:35 UTC5m
2026-05-17 SCX8501 LAX → KOA May 17, 16:15 UTCMay 17, 16:45 UTC30m
2026-05-09 SCX9039 SFB → MSP May 9, 22:49 UTCMay 9, 23:30 UTC40m
2026-05-09 SCX9039 SFB → MSP May 9, 18:45 UTCMay 9, 18:55 UTC10m
2026-04-30 SCX8501 LAX → KOA Apr 30, 21:25 UTCApr 30, 21:30 UTC5m
2026-04-30 SCX8501 LAX → KOA Apr 30, 16:15 UTCApr 30, 16:50 UTC35m
2026-04-27 SCX8502 KOA → LAX Apr 27, 03:50 UTCApr 27, 04:30 UTC40m
2026-04-26 SCX8502 KOA → LAX Apr 26, 23:30 UTCApr 26, 23:40 UTC10m
2026-04-26 SCX8501 LAX → KOA Apr 26, 16:15 UTCApr 26, 21:50 UTC5h 35m
2026-04-26 SCX8711 BFI → LAX Apr 26, 01:15 UTCApr 26, 05:00 UTC3h 45m
2026-04-24 SCX8711 BFI → LAX Apr 24, 21:55 UTCApr 25, 00:55 UTC3h 0m
2026-04-19 SCX8502 KOA → LAX Apr 19, 23:10 UTCApr 20, 04:10 UTC5h 0m
2026-04-19 SCX8501 LAX → KOA Apr 19, 21:55 UTCApr 19, 22:00 UTC5m
2026-04-19 SCX8501 LAX → KOA Apr 19, 16:10 UTCApr 19, 16:40 UTC30m
2026-04-18 SCX8723 SJC → SLC Apr 18, 21:05 UTCApr 18, 22:00 UTC55m
2026-04-18 SCX8773 SFO → SJC Apr 18, 17:15 UTCApr 18, 18:40 UTC1h 25m
2026-04-17 SCX8729 SAN → SEA Apr 17, 21:35 UTCApr 17, 23:05 UTC1h 30m
2026-04-17 SCX8779 MSP → FLL Apr 17, 19:25 UTCApr 17, 19:30 UTC5m
2026-04-17 SCX8779 MSP → FLL Apr 17, 19:00 UTCApr 17, 19:20 UTC20m
2026-04-17 SCX8502 KOA → LAX Apr 17, 03:20 UTCApr 17, 03:50 UTC30m
2026-04-16 SCX8502 KOA → LAX Apr 16, 22:54 UTCApr 16, 23:00 UTC5m
2026-04-16 SCX8501 LAX → KOA Apr 16, 21:34 UTCApr 16, 21:50 UTC15m
2026-04-16 SCX8501 LAX → KOA Apr 16, 16:10 UTCApr 16, 16:45 UTC35m
2026-04-15 SCX8711 BFI → LAX Apr 15, 09:00 UTCApr 15, 09:45 UTC45m
2026-04-15 SCX8711 BFI → LAX Apr 15, 08:10 UTCApr 15, 08:55 UTC45m
2026-04-15 SCX8711 BFI → LAX Apr 15, 06:05 UTCApr 15, 06:25 UTC20m
2026-04-13 SCX8711 - Apr 13, 20:15 UTCApr 13, 20:40 UTC25m
2026-04-13 SCX8711 - Apr 13, 17:25 UTCApr 13, 18:45 UTC1h 20m
2026-04-13 SCX8502 - Apr 13, 03:55 UTCApr 13, 04:05 UTC10m
2026-04-13 SCX8502 - Apr 13, 03:30 UTCApr 13, 04:05 UTC35m

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 N839SY page for operator, model, and routing details .

Mode-S AB7B70 frequently asked

What is Mode-S code AB7B70?
AB7B70 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N839SY.
Where is Mode-S AB7B70 registered?
Mode-S code AB7B70 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 AB7B70 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB7B70, octal 52675560, decimal 11,238,256.
What flights does AB7B70 operate?
Mode-S AB7B70 has broadcast 10 distinct callsigns, including SCX8502, SCX8501, SCX8711, SCX9039, SCX8779.