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 18h ago
Flights observed
98
Distinct callsigns
16
Country
US
Last broadcast
18h 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 16 distinct

Callsign Airline Flights Last seen
SCX8501 - 37 2026-07-16
SCX8502 - 36 2026-07-17
SCX8711 Sun Country Airlines 7 2026-04-26
SCX9039 Sun Country Airlines 4 2026-05-30
SCX9050 - 2 2026-07-11
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
SCX8676 Sun Country Airlines 1 2026-06-10
SCX8675 Sun Country Airlines 1 2026-06-10
SCX8674 Sun Country Airlines 1 2026-06-10
SCX8656 - 1 2026-07-15
SCX8655 - 1 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 SCX8502 - Jul 17, 03:05 UTCJul 17, 03:39 UTC35m
2026-07-16 SCX8502 - Jul 16, 22:45 UTCJul 16, 22:55 UTC10m
2026-07-16 SCX8501 - Jul 16, 21:19 UTCJul 16, 21:30 UTC10m
2026-07-16 SCX8501 - Jul 16, 16:05 UTCJul 16, 16:35 UTC30m
2026-07-15 SCX8656 - Jul 15, 21:45 UTCJul 16, 02:40 UTC4h 55m
2026-07-14 SCX8655 - Jul 14, 19:30 UTCJul 15, 01:15 UTC5h 44m
2026-07-13 SCX8502 - Jul 13, 03:20 UTCJul 13, 04:00 UTC40m
2026-07-12 SCX8502 - Jul 12, 23:00 UTCJul 12, 23:10 UTC10m
2026-07-12 SCX8501 - Jul 12, 21:15 UTCJul 12, 21:25 UTC10m
2026-07-12 SCX8501 - Jul 12, 16:15 UTCJul 12, 16:45 UTC30m
2026-07-11 SCX9050 - Jul 11, 20:35 UTCJul 11, 21:15 UTC40m
2026-07-06 SCX9050 - Jul 6, 05:15 UTCJul 6, 05:55 UTC40m
2026-07-06 SCX8502 - Jul 6, 03:10 UTCJul 6, 03:50 UTC40m
2026-07-05 SCX8502 - Jul 5, 23:05 UTCJul 5, 23:15 UTC10m
2026-07-05 SCX8501 - Jul 5, 21:30 UTCJul 5, 21:40 UTC10m
2026-07-05 SCX8501 - Jul 5, 15:55 UTCJul 5, 16:30 UTC35m
2026-07-03 SCX8502 - Jul 3, 03:20 UTCJul 3, 03:55 UTC35m
2026-07-02 SCX8502 - Jul 2, 23:15 UTCJul 2, 23:25 UTC10m
2026-07-02 SCX8501 - Jul 2, 21:35 UTCJul 2, 21:45 UTC10m
2026-07-02 SCX8501 - Jul 2, 16:15 UTCJul 2, 16:45 UTC30m
2026-06-29 SCX8502 - Jun 29, 03:10 UTCJun 29, 03:49 UTC40m
2026-06-28 SCX8502 - Jun 28, 22:49 UTCJun 28, 23:04 UTC15m
2026-06-28 SCX8501 - Jun 28, 21:40 UTCJun 28, 21:45 UTC5m
2026-06-28 SCX8501 - Jun 28, 16:25 UTCJun 28, 16:55 UTC30m
2026-06-26 SCX8502 - Jun 26, 03:34 UTCJun 26, 04:10 UTC35m
2026-06-25 SCX8502 - Jun 25, 23:19 UTCJun 25, 23:24 UTC5m
2026-06-25 SCX8501 - Jun 25, 21:44 UTCJun 25, 21:50 UTC5m
2026-06-25 SCX8501 - Jun 25, 16:29 UTCJun 25, 17:05 UTC35m
2026-06-22 SCX8502 - Jun 22, 03:24 UTCJun 22, 04:15 UTC50m
2026-06-21 SCX8502 KOA → WKL Jun 21, 23:10 UTCJun 21, 23:14 UTC5m
2026-06-21 SCX8501 - Jun 21, 21:24 UTCJun 21, 21:29 UTC5m
2026-06-21 SCX8501 - Jun 21, 16:04 UTCJun 21, 16:39 UTC35m
2026-06-19 SCX8502 - Jun 19, 03:39 UTCJun 19, 04:14 UTC35m
2026-06-18 SCX8502 - Jun 18, 23:20 UTCJun 18, 23:25 UTC5m
2026-06-18 SCX8501 - Jun 18, 21:55 UTCJun 18, 22:05 UTC10m
2026-06-18 SCX8501 - Jun 18, 16:40 UTCJun 18, 17:10 UTC30m
2026-06-14 SCX8502 KOA → LAX Jun 14, 23:00 UTCJun 15, 03:55 UTC4h 55m
2026-06-14 SCX8501 LAX → KOA Jun 14, 21:10 UTCJun 14, 21:20 UTC10m
2026-06-14 SCX8501 LAX → KOA Jun 14, 16:15 UTCJun 14, 16:45 UTC30m
2026-06-12 SCX8502 KOA → LAX Jun 12, 03:05 UTCJun 12, 03:50 UTC45m
2026-06-11 SCX8502 KOA → LAX Jun 11, 22:50 UTCJun 11, 23:00 UTC10m
2026-06-11 SCX8501 LAX → KOA Jun 11, 21:25 UTCJun 11, 21:45 UTC20m
2026-06-11 SCX8501 LAX → KOA Jun 11, 16:15 UTCJun 11, 16:45 UTC30m
2026-06-10 SCX8676 PVD → HOU Jun 10, 20:45 UTCJun 11, 01:45 UTC5h 0m
2026-06-10 SCX8675 IND → PUJ Jun 10, 15:20 UTCJun 10, 19:25 UTC4h 5m
2026-06-10 SCX8674 SWO → MSP Jun 10, 12:50 UTCJun 10, 13:35 UTC45m
2026-06-08 SCX8502 KOA → LAX Jun 8, 03:15 UTCJun 8, 03:55 UTC40m
2026-06-07 SCX8502 KOA → LAX Jun 7, 22:50 UTCJun 7, 23:00 UTC10m
2026-06-07 SCX8501 LAX → KOA Jun 7, 21:15 UTCJun 7, 21:20 UTC5m
2026-06-07 SCX8501 LAX → KOA Jun 7, 16:10 UTCJun 7, 16:45 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 18h 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 16 distinct callsigns, including SCX8501, SCX8502, SCX8711, SCX9039, SCX9050.