Apparatus

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sensors Mode-S transponder

AB53F1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N829SY · BOEING 737-800 · operated by SUN COUNTRY INC

Hex
AB53F1
Octal
52651761
Decimal
11,228,145
Country
US
Tail
N829SY
Type
B738
No current signal · last broadcast Jul 26, 21:35 UTC
Flights observed
276
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:35 UTC

Last known position

Most recent position reported by Mode-S AB53F1.

Country allocation

The ICAO 24-bit address AB53F1 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
SCX408 Sun Country Airlines 5 2026-07-20
SCX407 Sun Country Airlines 5 2026-07-19
SCX286 - 4 2026-07-12
SCX285 - 4 2026-07-11
SCX8726 - 3 2026-07-15
SCX8261 Sun Country Airlines 3 2026-07-26
SCX8259 Sun Country Airlines 3 2026-07-22
SCX8250 - 3 2026-07-23
SCX8243 - 3 2026-04-16
SCX384 Sun Country Airlines 3 2026-07-10
SCX214 - 3 2026-07-19
SCX213 - 3 2026-07-19
SCX1918 - 3 2026-07-12
SCX1917 - 3 2026-07-12
SCX1273 Sun Country Airlines 3 2026-06-07
SCX108 Sun Country Airlines 3 2026-06-09
SCX107 Sun Country Airlines 3 2026-06-08
SCX9029 Sun Country Airlines 2 2026-07-18
SCX8776 Sun Country Airlines 2 2026-05-10
SCX8774 Sun Country Airlines 2 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SCX8281 TYS → GRR Jul 26, 20:35 UTCJul 26, 21:25 UTC50m
2026-07-26 SCX8261 MSY → RNO Jul 26, 15:55 UTCJul 26, 17:40 UTC1h 45m
2026-07-26 SCX8280 ORD → PIA Jul 26, 13:05 UTCJul 26, 14:00 UTC55m
2026-07-24 SCX8236 DAY → IFP Jul 24, 23:25 UTCJul 25, 03:05 UTC3h 40m
2026-07-24 SCX8252 GTF → YEG Jul 24, 21:15 UTCJul 24, 22:15 UTC1h 0m
2026-07-24 SCX8235 IFP → SEA Jul 24, 16:40 UTCJul 24, 20:05 UTC3h 25m
2026-07-24 SCX8251 - Jul 24, 13:15 UTCJul 24, 13:45 UTC30m
2026-07-24 SCX8234 HOU → IFP Jul 24, 00:10 UTCJul 24, 01:50 UTC1h 40m
2026-07-23 SCX8250 - Jul 23, 20:05 UTCJul 23, 21:25 UTC1h 20m
2026-07-23 SCX8233 - Jul 23, 17:40 UTCJul 23, 18:55 UTC1h 15m
2026-07-23 SCX8232 DTW → IFP Jul 23, 02:35 UTCJul 23, 06:00 UTC3h 25m
2026-07-22 SCX8259 ONT → OAK Jul 22, 20:40 UTCJul 22, 21:40 UTC1h 0m
2026-07-22 SCX8231 - Jul 22, 18:05 UTCJul 22, 19:25 UTC1h 20m
2026-07-22 SCX8231 - Jul 22, 15:10 UTCJul 22, 17:20 UTC2h 10m
2026-07-21 SCX8230 MSY → ABE Jul 21, 20:40 UTCJul 21, 22:55 UTC2h 15m
2026-07-21 SCX8230 MSY → ABE Jul 21, 19:15 UTCJul 21, 19:55 UTC40m
2026-07-21 SCX8259 ONT → OAK Jul 21, 17:00 UTCJul 21, 17:35 UTC35m
2026-07-21 SCX262 ORD → MSP Jul 21, 00:45 UTCJul 21, 01:45 UTC1h 0m
2026-07-20 SCX261 MSP → ORD Jul 20, 21:00 UTCJul 20, 22:10 UTC1h 10m
2026-07-20 SCX1420 RIC → MSP Jul 20, 17:05 UTCJul 20, 19:35 UTC2h 30m
2026-07-20 SCX1419 - Jul 20, 13:25 UTCJul 20, 15:25 UTC2h 0m
2026-07-20 SCX408 SAN → MSP Jul 20, 00:55 UTCJul 20, 04:10 UTC3h 15m
2026-07-19 SCX407 MSP → SAN Jul 19, 20:35 UTCJul 19, 23:40 UTC3h 5m
2026-07-19 SCX214 TPA → MSP Jul 19, 16:05 UTCJul 19, 19:10 UTC3h 5m
2026-07-19 SCX213 MSP → TPA Jul 19, 11:50 UTCJul 19, 14:40 UTC2h 50m
2026-07-19 SCX290 SEA → MSP Jul 19, 07:05 UTCJul 19, 09:40 UTC2h 35m
2026-07-19 SCX289 MSP → SEA Jul 19, 02:05 UTCJul 19, 05:25 UTC3h 20m
2026-07-18 SCX106 LAS → MSP Jul 18, 21:05 UTCJul 18, 23:55 UTC2h 50m
2026-07-18 SCX105 MSP → LAS Jul 18, 16:40 UTCJul 18, 19:20 UTC2h 40m
2026-07-18 SCX1628 ATL → MSP Jul 18, 12:35 UTCJul 18, 14:35 UTC2h 0m
2026-07-18 SCX8700 MSP → PHL Jul 18, 04:50 UTCJul 18, 05:25 UTC35m
2026-07-18 SCX9029 MSP → RIC Jul 18, 01:05 UTCJul 18, 02:40 UTC1h 35m
2026-07-17 SCX406 - Jul 17, 18:34 UTCJul 17, 21:44 UTC3h 10m
2026-07-17 SCX405 MSP → SAN Jul 17, 13:35 UTCJul 17, 16:40 UTC3h 5m
2026-07-17 SCX8774 SJC → SFO Jul 17, 06:10 UTCJul 17, 07:14 UTC1h 5m
2026-07-17 SCX8724 MKC → PHL Jul 17, 04:49 UTCJul 17, 05:30 UTC40m
2026-07-16 SCX8471 - Jul 16, 21:10 UTCJul 16, 22:49 UTC1h 40m
2026-07-16 SCX8410 HOU → PWM Jul 16, 15:45 UTCJul 16, 19:40 UTC3h 55m
2026-07-16 SCX8459 SHV → MLU Jul 16, 11:20 UTCJul 16, 13:15 UTC1h 55m
2026-07-15 SCX8726 YVR → ORD Jul 15, 21:35 UTCJul 16, 01:05 UTC3h 30m
2026-07-15 SCX1641 MSP → SFO Jul 15, 14:35 UTCJul 15, 17:45 UTC3h 10m
2026-07-13 SCX250 BOS → MSP Jul 13, 10:45 UTCJul 13, 13:20 UTC2h 35m
2026-07-13 SCX249 MSP → BOS Jul 13, 01:20 UTCJul 13, 03:50 UTC2h 30m
2026-07-12 SCX1918 YYZ → MSP Jul 12, 22:25 UTCJul 12, 23:55 UTC1h 30m
2026-07-12 SCX1917 MSP → YYZ Jul 12, 19:01 UTCJul 12, 20:35 UTC1h 35m
2026-07-12 SCX1124 - Jul 12, 15:05 UTCJul 12, 17:01 UTC1h 55m
2026-07-12 SCX1123 - Jul 12, 11:45 UTCJul 12, 13:30 UTC1h 45m
2026-07-12 SCX286 SEA → MSP Jul 12, 01:35 UTCJul 12, 04:15 UTC2h 40m
2026-07-11 SCX285 MSP → SEA Jul 11, 20:40 UTCJul 11, 23:55 UTC3h 15m
2026-07-11 SCX490 - Jul 11, 18:15 UTCJul 11, 19:15 UTC1h 0m

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 N829SY page for operator, model, and routing details .

Mode-S AB53F1 frequently asked

What is Mode-S code AB53F1?
AB53F1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N829SY.
Where is Mode-S AB53F1 registered?
Mode-S code AB53F1 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 AB53F1 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB53F1, octal 52651761, decimal 11,228,145.
What flights does AB53F1 operate?
Mode-S AB53F1 has broadcast 20 distinct callsigns, including SCX408, SCX407, SCX286, SCX285, SCX8726.