Apparatus

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sensors Mode-S transponder

A03EDC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N115AX · BEECH 1900 · operated by ALASKA CENTRAL EXPRESS INC

Hex
A03EDC
Octal
50037334
Decimal
10,501,852
Country
US
Tail
N115AX
Type
B190
No current signal · last broadcast 1h ago
Flights observed
144
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A03EDC.

Country allocation

The ICAO 24-bit address A03EDC 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
AER42 Alaska Central Express 18 2026-05-27
AER41 Alaska Central Express 17 2026-05-29
AER21 Alaska Central Express 15 2026-05-28
AER65 Alaska Central Express 14 2026-04-17
AER43 Alaska Central Express 11 2026-05-28
AER145 Alaska Central Express 10 2026-05-01
AER53 Alaska Central Express 9 2026-05-20
AER52 Alaska Central Express 8 2026-05-23
AER32 Alaska Central Express 8 2026-05-24
AER31 Alaska Central Express 8 2026-05-04
AER64 Alaska Central Express 4 2026-05-29
AER35 Alaska Central Express 4 2026-05-06
AER66 Alaska Central Express 3 2026-05-30
AER146 Alaska Central Express 3 2026-04-18
AER99 - 2 2026-05-18
AER67 Alaska Central Express 2 2026-05-23
AER44 Alaska Central Express 2 2026-05-07
AER23 Alaska Central Express 2 2026-04-20
AER144 Alaska Central Express 2 2026-04-17
AERT8 - 1 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AER66 SDP → ANC May 30, 03:20 UTCMay 30, 04:50 UTC1h 30m
2026-05-30 AER66 SDP → ANC May 30, 01:05 UTCMay 30, 02:40 UTC1h 35m
2026-05-29 AER66 SDP → ANC May 29, 21:40 UTCMay 29, 23:15 UTC1h 35m
2026-05-29 AER41 PSG → ANC May 29, 18:10 UTCMay 29, 20:10 UTC2h 0m
2026-05-29 AER41 PSG → ANC May 29, 17:00 UTCMay 29, 17:25 UTC25m
2026-05-29 AER41 PSG → ANC May 29, 14:25 UTCMay 29, 14:55 UTC30m
2026-05-29 AER41 PSG → ANC May 29, 13:30 UTCMay 29, 13:50 UTC20m
2026-05-29 AER41 PSG → ANC May 29, 10:20 UTCMay 29, 12:15 UTC1h 55m
2026-05-29 AER64 SNP → ANC May 29, 03:40 UTCMay 29, 05:20 UTC1h 40m
2026-05-28 AER64 SNP → ANC May 28, 22:35 UTCMay 29, 00:15 UTC1h 40m
2026-05-28 AER43 ANC → KTN May 28, 19:20 UTCMay 28, 20:25 UTC1h 5m
2026-05-28 AER43 ANC → KTN May 28, 18:20 UTCMay 28, 18:40 UTC20m
2026-05-28 AER43 ANC → KTN May 28, 17:20 UTCMay 28, 17:40 UTC20m
2026-05-28 AER43 ANC → KTN May 28, 13:05 UTCMay 28, 14:00 UTC55m
2026-05-28 AER43 ANC → KTN May 28, 11:15 UTCMay 28, 12:30 UTC1h 15m
2026-05-28 AER21 ANC → PSG May 28, 01:10 UTCMay 28, 02:15 UTC1h 5m
2026-05-28 AER21 ANC → PSG May 28, 00:20 UTCMay 28, 00:35 UTC15m
2026-05-27 AER21 ANC → PSG May 27, 22:20 UTCMay 27, 23:30 UTC1h 10m
2026-05-27 AER21 ANC → PSG May 27, 21:05 UTCMay 27, 21:40 UTC35m
2026-05-27 AER21 ANC → PSG May 27, 19:20 UTCMay 27, 20:25 UTC1h 5m
2026-05-27 AER42 ANC → YAK May 27, 16:15 UTCMay 27, 16:55 UTC40m
2026-05-27 AER42 ANC → YAK May 27, 15:00 UTCMay 27, 15:30 UTC30m
2026-05-27 AER42 ANC → YAK May 27, 12:45 UTCMay 27, 13:45 UTC1h 0m
2026-05-26 AER41 PSG → ANC May 26, 19:34 UTCMay 26, 20:40 UTC1h 5m
2026-05-26 AER41 PSG → ANC May 26, 18:30 UTCMay 26, 18:50 UTC20m
2026-05-26 AER41 PSG → ANC May 26, 17:20 UTCMay 26, 17:44 UTC25m
2026-05-26 AER41 PSG → ANC May 26, 14:24 UTCMay 26, 14:50 UTC25m
2026-05-26 AER41 PSG → ANC May 26, 13:19 UTCMay 26, 13:40 UTC20m
2026-05-26 AER41 PSG → ANC May 26, 10:20 UTCMay 26, 11:30 UTC1h 10m
2026-05-24 AER64 SNP → ANC May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-24 AER64 SNP → ANC May 24, 19:25 UTCMay 24, 21:05 UTC1h 40m
2026-05-24 AER32 ILI → ANC May 24, 16:30 UTCMay 24, 17:30 UTC1h 0m
2026-05-24 AER32 ILI → ANC May 24, 14:55 UTCMay 24, 16:05 UTC1h 10m
2026-05-23 AER32 ILI → ANC May 23, 20:50 UTCMay 23, 21:55 UTC1h 5m
2026-05-23 AER32 ILI → ANC May 23, 19:05 UTCMay 23, 20:15 UTC1h 10m
2026-05-23 AER52 ANC → DLG May 23, 16:25 UTCMay 23, 17:35 UTC1h 10m
2026-05-23 AER52 ANC → DLG May 23, 14:15 UTCMay 23, 15:30 UTC1h 15m
2026-05-23 AER67 SNP → ANC May 23, 05:05 UTCMay 23, 06:35 UTC1h 30m
2026-05-22 AER67 SNP → ANC May 22, 22:40 UTCMay 23, 00:30 UTC1h 50m
2026-05-22 AER41 PSG → ANC May 22, 19:40 UTCMay 22, 20:50 UTC1h 10m
2026-05-22 AER41 PSG → ANC May 22, 18:45 UTCMay 22, 19:05 UTC20m
2026-05-22 AER41 PSG → ANC May 22, 16:55 UTCMay 22, 17:15 UTC20m
2026-05-22 AER41 PSG → ANC May 22, 14:05 UTCMay 22, 14:35 UTC30m
2026-05-22 AER41 PSG → ANC May 22, 13:15 UTCMay 22, 13:35 UTC20m
2026-05-22 AER41 PSG → ANC May 22, 10:20 UTCMay 22, 11:25 UTC1h 5m
2026-05-22 AER21 ANC → PSG May 22, 03:15 UTCMay 22, 04:15 UTC1h 0m
2026-05-22 AER21 ANC → PSG May 22, 01:35 UTCMay 22, 02:30 UTC55m
2026-05-22 AER21 ANC → PSG May 22, 00:30 UTCMay 22, 00:50 UTC20m
2026-05-21 AER21 ANC → PSG May 21, 22:35 UTCMay 21, 23:40 UTC1h 5m
2026-05-21 AER43 ANC → KTN May 21, 18:45 UTCMay 21, 19:55 UTC1h 10m

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 N115AX page for operator, model, and routing details .

Mode-S A03EDC frequently asked

What is Mode-S code A03EDC?
A03EDC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N115AX.
Where is Mode-S A03EDC registered?
Mode-S code A03EDC 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 A03EDC broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A03EDC, octal 50037334, decimal 10,501,852.
What flights does A03EDC operate?
Mode-S A03EDC has broadcast 20 distinct callsigns, including AER42, AER41, AER21, AER65, AER43.