Apparatus

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sensors Mode-S transponder

A06A12

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N126AX · BEECH 1900 · operated by ALASKA CENTRAL EXPRESS INC

Hex
A06A12
Octal
50065022
Decimal
10,512,914
Country
US
Tail
N126AX
Type
B190
No current signal · last broadcast 2h ago
Flights observed
277
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A06A12.

Country allocation

The ICAO 24-bit address A06A12 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
AER41 - 90 2026-07-13
AER43 - 28 2026-07-11
AER67 - 26 2026-07-11
AER66 - 18 2026-07-10
AER65 Alaska Central Express 16 2026-07-08
AER42 - 15 2026-07-04
AER31 Alaska Central Express 13 2026-05-30
AERT5 - 10 2026-04-26
AER145 - 10 2026-07-01
AER146 Alaska Central Express 8 2026-05-18
AER64 - 7 2026-07-06
AER53 Alaska Central Express 7 2026-05-25
AER52 Alaska Central Express 6 2026-06-02
AER144 Alaska Central Express 5 2026-05-04
AER33 Alaska Central Express 4 2026-05-24
AER21 - 4 2026-07-14
AER711 Alaska Central Express 2 2026-05-20
AER45 - 2 2026-06-11
AER35 Alaska Central Express 2 2026-05-12
AER32 Alaska Central Express 2 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AER21 - Jul 14, 01:25 UTCJul 14, 04:15 UTC2h 50m
2026-07-13 AER21 - Jul 13, 22:30 UTCJul 14, 00:45 UTC2h 15m
2026-07-13 AER41 - Jul 13, 18:10 UTCJul 13, 20:30 UTC2h 20m
2026-07-13 AER41 - Jul 13, 17:10 UTCJul 13, 17:25 UTC15m
2026-07-13 AER41 - Jul 13, 14:15 UTCJul 13, 14:45 UTC30m
2026-07-13 AER41 - Jul 13, 13:05 UTCJul 13, 13:25 UTC20m
2026-07-13 AER41 - Jul 13, 10:05 UTCJul 13, 12:15 UTC2h 10m
2026-07-11 AER43 - Jul 11, 19:45 UTCJul 11, 21:40 UTC1h 55m
2026-07-11 AER43 - Jul 11, 18:10 UTCJul 11, 18:40 UTC30m
2026-07-11 AER43 - Jul 11, 15:50 UTCJul 11, 16:20 UTC30m
2026-07-11 AER43 - Jul 11, 11:10 UTCJul 11, 14:05 UTC2h 55m
2026-07-11 AER67 - Jul 11, 02:15 UTCJul 11, 03:50 UTC1h 35m
2026-07-10 AER67 - Jul 10, 19:05 UTCJul 10, 20:50 UTC1h 45m
2026-07-10 AER66 AKN → ANC Jul 10, 04:35 UTCJul 10, 05:45 UTC1h 10m
2026-07-10 AER66 STG → AKN Jul 10, 02:35 UTCJul 10, 04:15 UTC1h 40m
2026-07-10 AER66 - Jul 10, 00:45 UTCJul 10, 02:05 UTC1h 20m
2026-07-09 AER66 - Jul 9, 21:45 UTCJul 9, 22:55 UTC1h 10m
2026-07-09 AER43 - Jul 9, 17:50 UTCJul 9, 19:50 UTC2h 0m
2026-07-09 AER43 - Jul 9, 16:35 UTCJul 9, 16:55 UTC20m
2026-07-09 AER43 - Jul 9, 11:10 UTCJul 9, 11:45 UTC35m
2026-07-08 AER65 - Jul 8, 23:25 UTCJul 9, 00:50 UTC1h 25m
2026-07-08 AER65 - Jul 8, 22:20 UTCJul 8, 22:50 UTC30m
2026-07-08 AER65 ANC → SDP Jul 8, 16:00 UTCJul 8, 17:45 UTC1h 45m
2026-07-08 AER65 ANC → SDP Jul 8, 01:10 UTCJul 8, 02:30 UTC1h 20m
2026-07-08 AER65 ANC → SDP Jul 8, 00:00 UTCJul 8, 00:25 UTC25m
2026-07-07 AER65 ANC → SDP Jul 7, 18:10 UTCJul 7, 18:45 UTC35m
2026-07-07 AER65 ANC → SDP Jul 7, 16:30 UTCJul 7, 17:40 UTC1h 10m
2026-07-07 AER67 - Jul 7, 06:55 UTCJul 7, 08:10 UTC1h 15m
2026-07-07 AER67 - Jul 7, 05:50 UTCJul 7, 06:10 UTC20m
2026-07-07 AER67 - Jul 7, 00:10 UTCJul 7, 01:55 UTC1h 45m
2026-07-06 AER41 - Jul 6, 19:40 UTCJul 6, 21:40 UTC2h 0m
2026-07-06 AER41 - Jul 6, 18:25 UTCJul 6, 19:05 UTC40m
2026-07-06 AER41 - Jul 6, 17:20 UTCJul 6, 17:45 UTC25m
2026-07-06 AER41 - Jul 6, 14:35 UTCJul 6, 15:05 UTC30m
2026-07-06 AER41 - Jul 6, 13:30 UTCJul 6, 13:50 UTC20m
2026-07-06 AER41 - Jul 6, 10:05 UTCJul 6, 12:25 UTC2h 20m
2026-07-06 AER64 - Jul 6, 02:25 UTCJul 6, 03:45 UTC1h 20m
2026-07-06 AER64 - Jul 6, 01:20 UTCJul 6, 01:50 UTC30m
2026-07-05 AER64 - Jul 5, 22:10 UTCJul 5, 23:40 UTC1h 30m
2026-07-05 AER67 - Jul 5, 02:40 UTCJul 5, 04:40 UTC2h 0m
2026-07-04 AER67 - Jul 4, 21:05 UTCJul 4, 23:00 UTC1h 55m
2026-07-04 AER42 - Jul 4, 16:30 UTCJul 4, 17:50 UTC1h 20m
2026-07-04 AER42 - Jul 4, 14:30 UTCJul 4, 15:15 UTC45m
2026-07-04 AER42 ANC → CDV Jul 4, 13:15 UTCJul 4, 14:00 UTC45m
2026-07-04 AER66 - Jul 4, 06:00 UTCJul 4, 07:15 UTC1h 15m
2026-07-04 AER66 - Jul 4, 03:40 UTCJul 4, 04:30 UTC50m
2026-07-04 AER66 - Jul 4, 02:20 UTCJul 4, 02:50 UTC30m
2026-07-03 AER66 - Jul 3, 23:10 UTCJul 4, 00:25 UTC1h 15m
2026-07-03 AER41 - Jul 3, 18:55 UTCJul 3, 21:00 UTC2h 5m
2026-07-03 AER41 - Jul 3, 17:30 UTCJul 3, 17:45 UTC15m

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 N126AX page for operator, model, and routing details .

Mode-S A06A12 frequently asked

What is Mode-S code A06A12?
A06A12 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N126AX.
Where is Mode-S A06A12 registered?
Mode-S code A06A12 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 A06A12 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A06A12, octal 50065022, decimal 10,512,914.
What flights does A06A12 operate?
Mode-S A06A12 has broadcast 20 distinct callsigns, including AER41, AER43, AER67, AER66, AER65.