sensors Mode-S transponder

AB8180

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N840SY · BOEING 737-800 · operated by BANK OF UTAH TRUSTEE

Hex
AB8180
Octal
52700600
Decimal
11,239,808
Country
US
Tail
N840SY
Type
B738
No current signal · last broadcast 1d ago
Flights observed
5
Distinct callsigns
3
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AB8180.

Country allocation

The ICAO 24-bit address AB8180 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 3 distinct

Callsign Airline Flights Last seen
SCX754 Sun Country Airlines 2 2026-04-13
SCX753 Sun Country Airlines 2 2026-04-13
SCX1614 - 1 2026-04-12

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 SCX754 FLL → MSP Apr 13, 19:50 UTCApr 13, 20:55 UTC1h 5m
2026-04-13 SCX754 FLL → MSP Apr 13, 17:40 UTCApr 13, 20:10 UTC2h 30m
2026-04-13 SCX753 MSP → FLL Apr 13, 15:50 UTCApr 13, 16:05 UTC15m
2026-04-13 SCX753 MSP → FLL Apr 13, 12:55 UTCApr 13, 16:05 UTC3h 10m
2026-04-12 SCX1614 - Apr 12, 17:15 UTCApr 12, 18:55 UTC1h 40m

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 N840SY page for operator, model, and routing details .

Mode-S AB8180 frequently asked

What is Mode-S code AB8180?
AB8180 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N840SY.
Where is Mode-S AB8180 registered?
Mode-S code AB8180 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 AB8180 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 AB8180, octal 52700600, decimal 11,239,808.
What flights does AB8180 operate?
Mode-S AB8180 has broadcast 3 distinct callsigns, including SCX754, SCX753, SCX1614.