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 1d ago
Flights observed
309
Distinct callsigns
20
Country
US
Last broadcast
1d 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
AER41 - 34 2026-06-16
AER43 Alaska Central Express 27 2026-06-27
AER42 - 27 2026-06-25
AER52 - 22 2026-07-09
AER21 - 22 2026-06-26
AER65 Alaska Central Express 20 2026-06-15
AER53 - 18 2026-07-08
AER145 - 18 2026-07-08
AER32 - 15 2026-07-09
AER31 - 13 2026-07-10
AER910 - 8 2026-06-24
AERT8 - 7 2026-07-08
AER67 - 6 2026-06-23
AER64 - 6 2026-06-28
AER44 - 6 2026-06-25
AER66 - 5 2026-06-17
AER913 Alaska Central Express 4 2026-06-15
AER901 Alaska Central Express 4 2026-06-10
AER714 - 4 2026-07-07
AER35 Alaska Central Express 4 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 AER180 HOM → ANC Jul 12, 22:50 UTCJul 12, 23:20 UTC30m
2026-07-12 AER180 - Jul 12, 21:15 UTCJul 12, 21:50 UTC35m
2026-07-10 AERT5 ANC → ANC Jul 10, 21:55 UTCJul 11, 00:15 UTC2h 20m
2026-07-10 AER31 AKN → ANC Jul 10, 18:45 UTCJul 10, 19:45 UTC1h 0m
2026-07-10 AER31 ANC → AKN Jul 10, 16:55 UTCJul 10, 18:05 UTC1h 10m
2026-07-09 AER32 - Jul 9, 21:45 UTCJul 9, 22:55 UTC1h 10m
2026-07-09 AER32 ANC → AKN Jul 9, 19:35 UTCJul 9, 20:50 UTC1h 15m
2026-07-09 AER52 - Jul 9, 16:25 UTCJul 9, 17:35 UTC1h 10m
2026-07-09 AER52 - Jul 9, 14:30 UTCJul 9, 15:40 UTC1h 10m
2026-07-09 AERT5 ANC → ANC Jul 9, 01:10 UTCJul 9, 03:50 UTC2h 40m
2026-07-08 AERT8 ANC → ANC Jul 8, 22:55 UTCJul 9, 00:00 UTC1h 5m
2026-07-08 AER53 - Jul 8, 19:55 UTCJul 8, 21:15 UTC1h 20m
2026-07-08 AER53 - Jul 8, 19:10 UTCJul 8, 19:25 UTC15m
2026-07-08 AER53 - Jul 8, 17:15 UTCJul 8, 18:30 UTC1h 15m
2026-07-08 AER145 ADQ → ANC Jul 8, 14:10 UTCJul 8, 15:10 UTC1h 0m
2026-07-08 AER145 ANC → ADQ Jul 8, 12:25 UTCJul 8, 13:30 UTC1h 5m
2026-07-07 AERT10 ANC → ANC Jul 7, 23:05 UTCJul 8, 02:00 UTC2h 55m
2026-07-07 AER714 - Jul 7, 18:15 UTCJul 7, 18:30 UTC15m
2026-07-07 AER714 ANC → ENA Jul 7, 17:25 UTCJul 7, 17:40 UTC15m
2026-07-07 AER145 - Jul 7, 14:10 UTCJul 7, 15:05 UTC55m
2026-07-07 AER145 ANC → ADQ Jul 7, 12:30 UTCJul 7, 13:25 UTC55m
2026-07-07 AER81 ANC → ANC Jul 7, 01:40 UTCJul 7, 03:20 UTC1h 40m
2026-07-06 AER32 AKN → ANC Jul 6, 23:45 UTCJul 7, 00:45 UTC1h 0m
2026-07-06 AER32 ANC → AKN Jul 6, 21:50 UTCJul 6, 22:50 UTC1h 0m
2026-07-06 AER52 ANC → DLG Jul 6, 18:35 UTCJul 6, 19:40 UTC1h 5m
2026-07-06 AER52 ANC → DLG Jul 6, 17:30 UTCJul 6, 18:00 UTC30m
2026-07-06 AER52 ANC → DLG Jul 6, 15:40 UTCJul 6, 16:45 UTC1h 5m
2026-07-05 AERT8 ANC → ANC Jul 5, 23:50 UTCJul 6, 00:50 UTC1h 0m
2026-07-05 AER981 - Jul 5, 20:00 UTCJul 5, 21:10 UTC1h 10m
2026-07-05 AER981 - Jul 5, 18:15 UTCJul 5, 19:15 UTC1h 0m
2026-07-04 AER956 - Jul 4, 19:15 UTCJul 4, 20:20 UTC1h 5m
2026-07-04 AER956 - Jul 4, 17:30 UTCJul 4, 18:40 UTC1h 10m
2026-06-30 AER714 - Jun 30, 19:50 UTCJun 30, 20:50 UTC1h 0m
2026-06-30 AER714 ANC → ADQ Jun 30, 18:20 UTCJun 30, 19:20 UTC1h 0m
2026-06-30 AER145 - Jun 30, 14:40 UTCJun 30, 15:45 UTC1h 5m
2026-06-30 AER145 ANC → ADQ Jun 30, 12:40 UTCJun 30, 13:50 UTC1h 10m
2026-06-30 AERT8 - Jun 30, 00:35 UTCJun 30, 01:40 UTC1h 6m
2026-06-29 AERT8 ANC → HOM Jun 29, 23:34 UTCJun 30, 00:25 UTC50m
2026-06-29 AERT8 - Jun 29, 21:39 UTCJun 29, 22:30 UTC50m
2026-06-29 AERT8 ANC → ENA Jun 29, 20:44 UTCJun 29, 21:30 UTC45m
2026-06-29 AER52 ANC → DLG Jun 29, 16:15 UTCJun 29, 17:19 UTC1h 5m
2026-06-29 AER52 ANC → DLG Jun 29, 14:19 UTCJun 29, 15:39 UTC1h 20m
2026-06-28 AER33 - Jun 28, 23:20 UTCJun 29, 00:49 UTC1h 30m
2026-06-28 AER33 ANC → AKN Jun 28, 21:40 UTCJun 28, 22:55 UTC1h 15m
2026-06-28 AER144 - Jun 28, 17:39 UTCJun 28, 18:44 UTC1h 5m
2026-06-28 AER144 ANC → ADQ Jun 28, 15:55 UTCJun 28, 16:55 UTC1h 0m
2026-06-28 AER64 - Jun 28, 04:15 UTCJun 28, 05:40 UTC1h 25m
2026-06-27 AER64 - Jun 27, 22:55 UTCJun 28, 00:45 UTC1h 50m
2026-06-27 AER43 ANC → KTN Jun 27, 17:34 UTCJun 27, 19:24 UTC1h 50m
2026-06-27 AER43 ANC → KTN Jun 27, 16:10 UTCJun 27, 16:30 UTC20m

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 1d 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 AER41, AER43, AER42, AER52, AER21.