Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AABA81

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N7901A · BOEING 737-800 · operated by BANK OF UTAH TRUSTEE

Hex
AABA81
Octal
52535201
Decimal
11,188,865
Country
US
Tail
N7901A
Type
B738
No current signal · last broadcast Jul 26, 21:00 UTC
Flights observed
345
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:00 UTC

Last known position

Most recent position reported by Mode-S AABA81.

Country allocation

The ICAO 24-bit address AABA81 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
SCX3048 - 12 2026-06-27
SCX3019 Sun Country Airlines 11 2026-07-23
SCX3056 - 9 2026-06-25
SCX3047 - 9 2026-07-20
SCX3006 - 9 2026-06-30
SCX3073 Sun Country Airlines 8 2026-07-08
SCX3058 - 8 2026-07-08
SCX3049 - 8 2026-07-20
SCX3041 - 8 2026-06-29
SCX3033 Sun Country Airlines 8 2026-06-22
SCX3022 Sun Country Airlines 8 2026-07-25
SCX3090 Sun Country Airlines 7 2026-07-21
SCX3046 Sun Country Airlines 7 2026-05-14
SCX3069 Sun Country Airlines 6 2026-07-24
SCX3065 Sun Country Airlines 6 2026-07-24
SCX3052 Sun Country Airlines 6 2026-05-06
SCX3042 - 6 2026-07-20
SCX3037 Sun Country Airlines 6 2026-06-30
SCX3025 Sun Country Airlines 6 2026-07-25
SCX3018 Sun Country Airlines 6 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SCX3003 LAL → MSY Jul 26, 19:30 UTCJul 26, 21:00 UTC1h 30m
2026-07-25 SCX3022 CVG → MSY Jul 25, 08:55 UTCJul 25, 10:10 UTC1h 15m
2026-07-25 SCX3012 LAS → AFW Jul 25, 05:55 UTCJul 25, 07:10 UTC1h 15m
2026-07-25 SCX3025 TOL → LAL Jul 25, 00:00 UTCJul 25, 01:25 UTC1h 25m
2026-07-24 SCX3039 CVG → MSY Jul 24, 19:35 UTCJul 24, 22:05 UTC2h 30m
2026-07-24 SCX3061 MSP → SBD Jul 24, 09:20 UTCJul 24, 11:00 UTC1h 40m
2026-07-24 SCX3065 CVG → LAL Jul 24, 05:35 UTCJul 24, 07:30 UTC1h 55m
2026-07-24 SCX3069 BDL → CVG Jul 24, 02:05 UTCJul 24, 04:05 UTC2h 0m
2026-07-23 SCX3031 ORD → LAL Jul 23, 21:40 UTCJul 23, 23:55 UTC2h 15m
2026-07-23 SCX3019 LAL → AUS Jul 23, 17:05 UTCJul 23, 19:10 UTC2h 5m
2026-07-23 SCX3065 CVG → LAL Jul 23, 07:00 UTCJul 23, 08:55 UTC1h 55m
2026-07-23 SCX3069 BDL → CVG Jul 23, 03:20 UTCJul 23, 05:25 UTC2h 5m
2026-07-22 SCX3082 AFW → PIT Jul 22, 05:10 UTCJul 22, 05:25 UTC15m
2026-07-21 SCX3090 PHX → AUS Jul 21, 14:15 UTCJul 21, 17:25 UTC3h 10m
2026-07-21 SCX3095 SBD → BNA Jul 21, 01:05 UTCJul 21, 05:25 UTC4h 20m
2026-07-20 SCX3042 - Jul 20, 21:45 UTCJul 20, 22:45 UTC1h 0m
2026-07-20 SCX3049 BWI → TOL Jul 20, 17:55 UTCJul 20, 18:55 UTC1h 0m
2026-07-20 SCX3047 - Jul 20, 10:30 UTCJul 20, 12:35 UTC2h 5m
2026-07-20 SCX3024 - Jul 20, 07:10 UTCJul 20, 08:15 UTC1h 5m
2026-07-20 SCX3064 TOL → LAL Jul 20, 03:50 UTCJul 20, 05:10 UTC1h 20m
2026-07-19 SCX3008 CVG → PDX Jul 19, 22:45 UTCJul 20, 00:30 UTC1h 45m
2026-07-19 SCX3097 - Jul 19, 19:50 UTCJul 19, 20:50 UTC1h 0m
2026-07-19 SCX6500 - Jul 19, 14:20 UTCJul 19, 16:10 UTC1h 50m
2026-07-18 SCX4001 CVG → BWI Jul 18, 23:35 UTCJul 19, 02:00 UTC2h 25m
2026-07-16 SCX3093 - Jul 16, 22:45 UTCJul 17, 01:25 UTC2h 40m
2026-07-14 SCX3022 STL → AFW Jul 14, 10:10 UTCJul 14, 11:20 UTC1h 10m
2026-07-14 SCX3057 - Jul 14, 06:55 UTCJul 14, 08:15 UTC1h 20m
2026-07-14 SCX3025 - Jul 14, 04:25 UTCJul 14, 04:40 UTC15m
2026-07-13 SCX3025 DEN → DAL Jul 13, 23:55 UTCJul 14, 01:50 UTC1h 55m
2026-07-13 SCX3039 - Jul 13, 20:00 UTCJul 13, 22:15 UTC2h 15m
2026-07-13 SCX6015 BWI → MSP Jul 13, 17:05 UTCJul 13, 18:10 UTC1h 5m
2026-07-12 SCX3047 - Jul 12, 10:30 UTCJul 12, 12:40 UTC2h 10m
2026-07-12 SCX3024 - Jul 12, 07:40 UTCJul 12, 08:50 UTC1h 10m
2026-07-12 SCX3064 BWI → BNA Jul 12, 04:30 UTCJul 12, 06:10 UTC1h 40m
2026-07-12 SCX3042 - Jul 12, 00:35 UTCJul 12, 01:40 UTC1h 5m
2026-07-11 SCX3049 - Jul 11, 17:50 UTCJul 11, 18:55 UTC1h 5m
2026-07-11 SCX6501 - Jul 11, 14:35 UTCJul 11, 15:45 UTC1h 10m
2026-07-10 SCX6050 CVG → MSP Jul 10, 12:55 UTCJul 10, 16:30 UTC3h 35m
2026-07-09 SCX3038 GEG → SBD Jul 9, 01:20 UTCJul 9, 03:25 UTC2h 5m
2026-07-08 SCX3011 SBD → GEG Jul 8, 21:40 UTCJul 8, 23:45 UTC2h 5m
2026-07-08 SCX3058 MSY → SBD Jul 8, 10:25 UTCJul 8, 13:35 UTC3h 10m
2026-07-08 SCX3073 CVG → PDX Jul 8, 05:10 UTCJul 8, 06:45 UTC1h 35m
2026-07-07 SCX4086 - Jul 7, 03:30 UTCJul 7, 06:00 UTC2h 30m
2026-07-06 SCX3067 - Jul 6, 06:10 UTCJul 6, 06:20 UTC10m
2026-07-06 SCX3067 - Jul 6, 05:00 UTCJul 6, 05:30 UTC30m
2026-07-03 SCX3099 - Jul 3, 04:45 UTCJul 3, 05:25 UTC40m
2026-07-01 SCX3022 STL → AFW Jul 1, 07:40 UTCJul 1, 08:55 UTC1h 15m
2026-07-01 SCX3057 - Jul 1, 04:50 UTCJul 1, 06:05 UTC1h 15m
2026-06-30 SCX3092 - Jun 30, 22:55 UTCJul 1, 02:05 UTC3h 10m
2026-06-30 SCX3009 FAI → PDX Jun 30, 17:20 UTCJun 30, 20:40 UTC3h 20m

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 N7901A page for operator, model, and routing details .

Mode-S AABA81 frequently asked

What is Mode-S code AABA81?
AABA81 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N7901A.
Where is Mode-S AABA81 registered?
Mode-S code AABA81 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 AABA81 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AABA81, octal 52535201, decimal 11,188,865.
What flights does AABA81 operate?
Mode-S AABA81 has broadcast 20 distinct callsigns, including SCX3048, SCX3019, SCX3056, SCX3047, SCX3006.