sensors Mode-S transponder

AB4515

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N825SY · BOEING 737-800 · operated by SUN COUNTRY INC

Hex
AB4515
Octal
52642425
Decimal
11,224,341
Country
US
Tail
N825SY
Type
B738
No current signal · last broadcast 1d ago
Flights observed
109
Distinct callsigns
20
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AB4515.

Country allocation

The ICAO 24-bit address AB4515 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-28 SCX9055 VQQ → MSP May 28, 15:15 UTCMay 28, 18:35 UTC3h 20m
2026-05-26 SCX910 ILM → MSP May 26, 17:35 UTCMay 26, 20:15 UTC2h 40m
2026-05-26 SCX9023 MSP → PUJ May 26, 13:15 UTCMay 26, 15:24 UTC2h 10m
2026-05-26 SCX286 SEA → MSP May 26, 02:04 UTCMay 26, 05:00 UTC2h 55m
2026-05-25 SCX285 MSP → SEA May 25, 20:59 UTCMay 26, 00:09 UTC3h 10m
2026-05-25 SCX8660 MSP → HLN May 25, 16:00 UTCMay 25, 18:55 UTC2h 55m
2026-05-25 SCX8610 MSP → MSN May 25, 01:55 UTCMay 25, 04:15 UTC2h 20m
2026-05-24 SCX214 TPA → MSP May 24, 15:45 UTCMay 24, 18:35 UTC2h 50m
2026-05-24 SCX213 MSP → TPA May 24, 11:35 UTCMay 24, 14:25 UTC2h 50m
2026-05-22 SCX344 MCO → MSP May 22, 17:40 UTCMay 22, 20:40 UTC3h 0m
2026-05-21 SCX345 MSP → MCO May 21, 17:35 UTCMay 21, 20:20 UTC2h 45m
2026-05-18 SCX1812 VPS → MSP May 18, 18:25 UTCMay 18, 20:50 UTC2h 24m
2026-05-18 SCX1811 MSP → VPS May 18, 13:35 UTCMay 18, 15:50 UTC2h 15m
2026-05-17 SCX608 PHX → MSP May 17, 23:35 UTCMay 18, 02:30 UTC2h 55m
2026-05-17 SCX607 MSP → PHX May 17, 19:10 UTCMay 17, 22:10 UTC3h 0m
2026-05-17 SCX1610 DEN → MSP May 17, 14:15 UTCMay 17, 15:40 UTC1h 25m
2026-05-17 SCX8704 DEN → PHL May 17, 06:45 UTCMay 17, 07:50 UTC1h 5m
2026-05-17 SCX1653 MSP → SLC May 17, 00:35 UTCMay 17, 03:10 UTC2h 35m
2026-05-15 SCX567 MSP → JFK May 15, 12:15 UTCMay 15, 13:00 UTC45m
2026-05-14 SCX942 SRQ → MSP May 14, 16:55 UTCMay 14, 20:00 UTC3h 5m
2026-05-14 SCX941 MSP → SRQ May 14, 12:50 UTCMay 14, 15:35 UTC2h 45m
2026-05-04 SCX914 VPS → MSP May 4, 17:10 UTCMay 4, 20:10 UTC3h 1m
2026-05-04 SCX913 MCO → MSP May 4, 13:10 UTCMay 4, 15:50 UTC2h 40m
2026-05-04 SCX606 PHX → MSP May 4, 01:35 UTCMay 4, 04:05 UTC2h 30m
2026-05-03 SCX605 MSP → PHX May 3, 21:10 UTCMay 4, 00:10 UTC3h 0m
2026-05-03 SCX1204 CHS → MSP May 3, 16:55 UTCMay 3, 19:30 UTC2h 35m
2026-05-03 SCX1203 MSP → CHS May 3, 13:25 UTCMay 3, 15:35 UTC2h 10m
2026-05-02 SCX252 BOS → MSP May 2, 15:50 UTCMay 2, 18:30 UTC2h 40m
2026-05-02 SCX251 MSP → BOS May 2, 12:05 UTCMay 2, 14:20 UTC2h 15m
2026-05-02 SCX408 SAN → MSP May 2, 01:15 UTCMay 2, 04:35 UTC3h 20m
2026-05-01 SCX407 MSP → SAN May 1, 20:25 UTCMay 1, 23:35 UTC3h 10m
2026-05-01 SCX194 BWI → MSP May 1, 16:45 UTCMay 1, 19:00 UTC2h 15m
2026-05-01 SCX193 MSP → BWI May 1, 13:45 UTCMay 1, 15:35 UTC1h 50m
2026-05-01 SCX658 DEN → MSP May 1, 00:50 UTCMay 1, 02:15 UTC1h 25m
2026-04-30 SCX657 MSP → DEN Apr 30, 22:00 UTCApr 30, 23:40 UTC1h 40m
2026-04-30 SCX8932 BDL → MSP Apr 30, 20:05 UTCApr 30, 20:45 UTC40m
2026-04-30 SCX8900 DFW → VCV Apr 30, 17:05 UTCApr 30, 19:00 UTC1h 55m
2026-04-30 SCX8930 MSP → POB Apr 30, 11:35 UTCApr 30, 14:15 UTC2h 40m
2026-04-27 SCX622 HRL → MSP Apr 27, 17:25 UTCApr 27, 20:10 UTC2h 45m
2026-04-27 SCX621 MSP → HRL Apr 27, 13:10 UTCApr 27, 16:10 UTC3h 0m
2026-04-27 SCX504 DFW → MSP Apr 27, 01:40 UTCApr 27, 03:35 UTC1h 55m
2026-04-26 SCX503 MSP → DFW Apr 26, 21:45 UTCApr 26, 23:50 UTC2h 5m
2026-04-26 SCX416 MIA → MSP Apr 26, 16:55 UTCApr 26, 20:25 UTC3h 30m
2026-04-26 SCX415 MSP → MIA Apr 26, 11:20 UTCApr 26, 14:25 UTC3h 5m
2026-04-26 SCX608 PHX → MSP Apr 26, 01:30 UTCApr 26, 04:00 UTC2h 30m
2026-04-25 SCX607 MSP → PHX Apr 25, 20:55 UTCApr 26, 00:00 UTC3h 5m
2026-04-25 SCX208 SAV → MSP Apr 25, 17:25 UTCApr 25, 19:55 UTC2h 30m
2026-04-25 SCX207 MSP → SAV Apr 25, 13:40 UTCApr 25, 16:00 UTC2h 20m
2026-04-25 SCX286 SEA → MSP Apr 25, 01:45 UTCApr 25, 04:35 UTC2h 50m
2026-04-24 SCX285 MSP → SEA Apr 24, 20:50 UTCApr 25, 00:00 UTC3h 10m

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 N825SY page for operator, model, and routing details .

Mode-S AB4515 frequently asked

What is Mode-S code AB4515?
AB4515 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N825SY.
Where is Mode-S AB4515 registered?
Mode-S code AB4515 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 AB4515 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 AB4515, octal 52642425, decimal 11,224,341.
What flights does AB4515 operate?
Mode-S AB4515 has broadcast 20 distinct callsigns, including SCX608, SCX607, SCX621, SCX567, SCX344.