Apparatus

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sensors Mode-S transponder

A1BD0A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2108Z · CESSNA 172R Cutlass RG · operated by PINNACLE AVIATION SERVICES INC

Hex
A1BD0A
Octal
50336412
Decimal
10,599,690
Country
US
Tail
N2108Z
Type
C72R
No current signal · last broadcast 13h ago
Flights observed
104
Distinct callsigns
1
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S A1BD0A.

Country allocation

The ICAO 24-bit address A1BD0A 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 1 distinct

Callsign Airline Flights Last seen
N2108Z - 104 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 N2108Z CLD → CLD May 29, 21:10 UTCMay 30, 00:15 UTC3h 5m
2026-05-29 N2108Z - May 29, 18:55 UTCMay 29, 20:00 UTC1h 5m
2026-05-29 N2108Z CLD → CLD May 29, 15:50 UTCMay 29, 16:10 UTC20m
2026-05-28 N2108Z CLD → CLD May 28, 16:45 UTCMay 28, 21:25 UTC4h 40m
2026-05-27 N2108Z CLD → CLD May 27, 23:55 UTCMay 28, 00:40 UTC45m
2026-05-27 N2108Z CLD → CLD May 27, 22:00 UTCMay 27, 22:55 UTC55m
2026-05-27 N2108Z OCN → CLD May 27, 19:10 UTCMay 27, 19:25 UTC15m
2026-05-27 N2108Z CLD → OCN May 27, 18:40 UTCMay 27, 19:05 UTC25m
2026-05-26 N2108Z - May 26, 20:40 UTCMay 26, 23:39 UTC3h 0m
2026-05-26 N2108Z - May 26, 00:00 UTCMay 26, 00:24 UTC25m
2026-05-25 N2108Z - May 25, 22:49 UTCMay 25, 23:19 UTC30m
2026-05-25 N2108Z - May 25, 20:45 UTCMay 25, 21:30 UTC45m
2026-05-24 N2108Z - May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-23 N2108Z - May 23, 22:45 UTCMay 23, 23:50 UTC1h 5m
2026-05-23 N2108Z - May 23, 17:45 UTCMay 23, 18:05 UTC20m
2026-05-22 N2108Z CLD → CLD May 22, 21:55 UTCMay 22, 22:25 UTC30m
2026-05-22 N2108Z - May 22, 20:40 UTCMay 22, 21:05 UTC25m
2026-05-22 N2108Z CLD → CLD May 22, 17:45 UTCMay 22, 18:30 UTC45m
2026-05-21 N2108Z CLD → CLD May 21, 21:35 UTCMay 21, 21:55 UTC20m
2026-05-21 N2108Z - May 21, 16:35 UTCMay 21, 17:10 UTC35m
2026-05-20 N2108Z CLD → CLD May 20, 22:50 UTCMay 20, 23:45 UTC55m
2026-05-20 N2108Z CLD → CLD May 20, 20:50 UTCMay 20, 21:25 UTC35m
2026-05-20 N2108Z - May 20, 18:35 UTCMay 20, 19:40 UTC1h 5m
2026-05-19 N2108Z - May 19, 23:35 UTCMay 20, 00:30 UTC55m
2026-05-19 N2108Z - May 19, 19:20 UTCMay 19, 19:45 UTC25m
2026-05-19 N2108Z - May 19, 18:35 UTCMay 19, 19:05 UTC30m
2026-05-19 N2108Z CLD → CLD May 19, 16:50 UTCMay 19, 17:40 UTC50m
2026-05-16 N2108Z CLD → CLD May 16, 18:05 UTCMay 16, 19:00 UTC55m
2026-05-15 N2108Z - May 15, 20:55 UTCMay 15, 21:40 UTC45m
2026-05-15 N2108Z CLD → CLD May 15, 18:00 UTCMay 15, 18:30 UTC30m
2026-05-14 N2108Z - May 14, 21:55 UTCMay 14, 23:05 UTC1h 10m
2026-05-14 N2108Z CLD → CLD May 14, 18:40 UTCMay 14, 19:40 UTC1h 0m
2026-05-13 N2108Z CLD → CLD May 13, 23:50 UTCMay 14, 01:25 UTC1h 35m
2026-05-13 N2108Z - May 13, 18:10 UTCMay 13, 18:40 UTC30m
2026-05-13 N2108Z - May 13, 17:50 UTCMay 13, 18:05 UTC15m
2026-05-13 N2108Z - May 13, 17:30 UTCMay 13, 17:45 UTC15m
2026-05-12 N2108Z CLD → CLD May 12, 18:45 UTCMay 12, 19:50 UTC1h 5m
2026-05-11 N2108Z CLD → CLD May 11, 19:45 UTCMay 11, 20:05 UTC20m
2026-05-10 N2108Z CLD → CLD May 10, 20:45 UTCMay 10, 21:25 UTC40m
2026-05-10 N2108Z CLD → CLD May 10, 18:35 UTCMay 10, 19:50 UTC1h 15m
2026-05-09 N2108Z CLD → CLD May 9, 18:55 UTCMay 9, 19:45 UTC50m
2026-05-08 N2108Z - May 8, 22:10 UTCMay 8, 23:15 UTC1h 5m
2026-05-08 N2108Z - May 8, 21:40 UTCMay 8, 21:55 UTC15m
2026-05-07 N2108Z CLD → CLD May 7, 22:00 UTCMay 7, 22:50 UTC50m
2026-05-07 N2108Z CLD → CLD May 7, 17:45 UTCMay 7, 18:40 UTC55m
2026-05-07 N2108Z - May 7, 02:20 UTCMay 7, 03:50 UTC1h 30m
2026-05-06 N2108Z - May 6, 21:45 UTCMay 7, 00:20 UTC2h 35m
2026-05-06 N2108Z - May 6, 20:00 UTCMay 6, 20:40 UTC40m
2026-05-06 N2108Z - May 6, 16:40 UTCMay 6, 17:45 UTC1h 4m
2026-05-05 N2108Z - May 5, 21:35 UTCMay 5, 21:45 UTC10m

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 N2108Z page for operator, model, and routing details .

Mode-S A1BD0A frequently asked

What is Mode-S code A1BD0A?
A1BD0A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2108Z.
Where is Mode-S A1BD0A registered?
Mode-S code A1BD0A 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 A1BD0A broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1BD0A, octal 50336412, decimal 10,599,690.
What flights does A1BD0A operate?
Mode-S A1BD0A has broadcast 1 distinct callsign, including N2108Z.