Apparatus

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sensors Mode-S transponder

AA2D8B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N755KP · CESSNA 208 Caravan · operated by KALININ PARTNERS LLC

Hex
AA2D8B
Octal
52426613
Decimal
11,152,779
Country
US
Tail
N755KP
Type
C208
No current signal · last broadcast Jul 26, 19:00 UTC
Flights observed
268
Distinct callsigns
15
Country
US
Last broadcast
Jul 26, 19:00 UTC

Last known position

Most recent position reported by Mode-S AA2D8B.

Country allocation

The ICAO 24-bit address AA2D8B 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 15 distinct

Callsign Airline Flights Last seen
EXP623 Business Express Delivery 54 2026-07-26
EXP6231 Business Express Delivery 51 2026-07-26
EXP624 Business Express Delivery 48 2026-07-25
EXP6241 Business Express Delivery 47 2026-07-25
N755KP - 25 2026-05-30
EXP300 Business Express Delivery 11 2026-07-26
EXP304 - 8 2026-07-21
EXP301 Business Express Delivery 6 2026-07-24
EXP324 Business Express Delivery 3 2026-06-03
EXP323 Business Express Delivery 3 2026-06-03
EXP306 Business Express Delivery 3 2026-07-23
EXP305 - 3 2026-07-17
EXP800 Business Express Delivery 2 2026-07-20
EXP55 Business Express Delivery 1 2026-06-06
EXP3001 - 1 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EXP6231 SIT → JNU Jul 26, 18:35 UTCJul 26, 19:00 UTC25m
2026-07-26 EXP623 KLW → SIT Jul 26, 17:10 UTCJul 26, 17:40 UTC30m
2026-07-26 EXP300 AKW → KTN Jul 26, 15:05 UTCJul 26, 15:15 UTC10m
2026-07-25 EXP6241 SIT → KLW Jul 25, 20:45 UTCJul 25, 21:30 UTC45m
2026-07-25 EXP624 JNU → SIT Jul 25, 19:45 UTCJul 25, 20:05 UTC20m
2026-07-25 EXP6231 SIT → JNU Jul 25, 18:30 UTCJul 25, 18:55 UTC25m
2026-07-25 EXP623 KLW → SIT Jul 25, 16:50 UTCJul 25, 17:15 UTC25m
2026-07-24 EXP6241 SIT → KLW Jul 24, 21:25 UTCJul 24, 22:25 UTC1h 0m
2026-07-24 EXP624 JNU → SIT Jul 24, 20:15 UTCJul 24, 20:45 UTC30m
2026-07-24 EXP6231 SIT → JNU Jul 24, 19:05 UTCJul 24, 19:30 UTC25m
2026-07-24 EXP623 KLW → SIT Jul 24, 17:25 UTCJul 24, 18:05 UTC40m
2026-07-24 EXP301 KTN → KLW Jul 24, 16:40 UTCJul 24, 16:55 UTC15m
2026-07-23 EXP6241 SIT → KLW Jul 23, 21:40 UTCJul 23, 22:10 UTC30m
2026-07-23 EXP624 JNU → SIT Jul 23, 20:15 UTCJul 23, 20:45 UTC30m
2026-07-23 EXP6231 SIT → JNU Jul 23, 18:50 UTCJul 23, 19:15 UTC25m
2026-07-23 EXP623 KLW → SIT Jul 23, 17:20 UTCJul 23, 18:15 UTC55m
2026-07-23 EXP301 KTN → KLW Jul 23, 16:15 UTCJul 23, 16:25 UTC10m
2026-07-23 EXP300 AKW → KTN Jul 23, 15:10 UTCJul 23, 15:20 UTC10m
2026-07-23 EXP306 AKW → KTN Jul 23, 01:00 UTCJul 23, 01:15 UTC15m
2026-07-22 EXP6241 SIT → KLW Jul 22, 21:05 UTCJul 22, 21:35 UTC30m
2026-07-22 EXP624 JNU → SIT Jul 22, 20:05 UTCJul 22, 20:30 UTC25m
2026-07-22 EXP6231 SIT → JNU Jul 22, 18:45 UTCJul 22, 19:15 UTC30m
2026-07-22 EXP623 KLW → SIT Jul 22, 17:20 UTCJul 22, 17:55 UTC35m
2026-07-22 EXP300 AKW → KTN Jul 22, 14:45 UTCJul 22, 15:50 UTC1h 5m
2026-07-21 EXP304 - Jul 21, 22:10 UTCJul 21, 22:20 UTC10m
2026-07-21 EXP6241 SIT → KLW Jul 21, 19:55 UTCJul 21, 21:35 UTC1h 40m
2026-07-21 EXP6231 SIT → JNU Jul 21, 18:35 UTCJul 21, 19:00 UTC25m
2026-07-21 EXP623 KLW → SIT Jul 21, 16:45 UTCJul 21, 18:00 UTC1h 15m
2026-07-21 EXP300 AKW → KTN Jul 21, 15:05 UTCJul 21, 15:15 UTC10m
2026-07-20 EXP304 - Jul 20, 22:30 UTCJul 20, 22:40 UTC10m
2026-07-20 EXP6241 - Jul 20, 20:50 UTCJul 20, 21:15 UTC25m
2026-07-20 EXP624 - Jul 20, 19:50 UTCJul 20, 20:15 UTC25m
2026-07-20 EXP6231 - Jul 20, 18:35 UTCJul 20, 18:55 UTC20m
2026-07-20 EXP623 KLW → SIT Jul 20, 17:15 UTCJul 20, 17:50 UTC35m
2026-07-20 EXP800 SIT → KLW Jul 20, 00:05 UTCJul 20, 01:40 UTC1h 35m
2026-07-19 EXP800 SIT → KLW Jul 19, 22:35 UTCJul 19, 22:45 UTC10m
2026-07-19 EXP6241 - Jul 19, 20:35 UTCJul 19, 21:05 UTC30m
2026-07-19 EXP624 - Jul 19, 19:45 UTCJul 19, 20:05 UTC20m
2026-07-19 EXP6231 - Jul 19, 18:30 UTCJul 19, 18:55 UTC25m
2026-07-19 EXP623 KLW → SIT Jul 19, 17:20 UTCJul 19, 17:55 UTC35m
2026-07-18 EXP6241 - Jul 18, 21:15 UTCJul 18, 21:40 UTC25m
2026-07-18 EXP624 - Jul 18, 19:55 UTCJul 18, 20:20 UTC25m
2026-07-18 EXP6231 - Jul 18, 18:40 UTCJul 18, 19:05 UTC25m
2026-07-18 EXP623 - Jul 18, 17:15 UTCJul 18, 17:55 UTC40m
2026-07-17 EXP6241 - Jul 17, 20:50 UTCJul 17, 21:20 UTC30m
2026-07-17 EXP624 - Jul 17, 19:45 UTCJul 17, 20:10 UTC25m
2026-07-17 EXP6231 - Jul 17, 18:25 UTCJul 17, 18:50 UTC25m
2026-07-17 EXP623 - Jul 17, 16:29 UTCJul 17, 17:40 UTC1h 10m
2026-07-17 EXP305 - Jul 17, 00:20 UTCJul 17, 00:30 UTC10m
2026-07-16 EXP6241 - Jul 16, 21:15 UTCJul 16, 22:19 UTC1h 5m

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 N755KP page for operator, model, and routing details .

Mode-S AA2D8B frequently asked

What is Mode-S code AA2D8B?
AA2D8B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N755KP.
Where is Mode-S AA2D8B registered?
Mode-S code AA2D8B 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 AA2D8B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA2D8B, octal 52426613, decimal 11,152,779.
What flights does AA2D8B operate?
Mode-S AA2D8B has broadcast 15 distinct callsigns, including EXP623, EXP6231, EXP624, EXP6241, N755KP.