Apparatus

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sensors Mode-S transponder

A04DB8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N119AX · BEECH 1900 · operated by ALASKA CENTRAL EXPRESS INC

Hex
A04DB8
Octal
50046670
Decimal
10,505,656
Country
US
Tail
N119AX
Type
B190
No current signal · last broadcast 25d ago
Flights observed
293
Distinct callsigns
20
Country
US
Last broadcast
25d ago

Last known position

Most recent position reported by Mode-S A04DB8.

Country allocation

The ICAO 24-bit address A04DB8 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 Alaska Central Express 83 2026-06-09
AER21 Alaska Central Express 33 2026-06-05
AER43 Alaska Central Express 32 2026-06-15
AER66 Alaska Central Express 17 2026-05-17
AER52 Alaska Central Express 14 2026-06-19
AER65 Alaska Central Express 12 2026-06-03
AER32 - 10 2026-06-20
AER42 - 9 2026-06-17
AER145 - 9 2026-06-20
AER910 - 8 2026-06-16
AER53 Alaska Central Express 8 2026-06-12
AER35 - 7 2026-06-22
AERT8 - 6 2026-06-15
AER67 Alaska Central Express 6 2026-06-02
AER31 Alaska Central Express 6 2026-06-11
AER99 - 4 2026-05-21
AER45 - 3 2026-06-16
AER44 - 3 2026-06-17
AER146 - 3 2026-06-14
AER914 Alaska Central Express 2 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-22 AER35 - Jun 22, 21:00 UTCJun 22, 21:49 UTC50m
2026-06-22 AER35 - Jun 22, 19:05 UTCJun 22, 19:44 UTC40m
2026-06-20 AER145 - Jun 20, 15:14 UTCJun 20, 16:14 UTC1h 0m
2026-06-20 AER145 ANC → ADQ Jun 20, 13:09 UTCJun 20, 14:39 UTC1h 30m
2026-06-20 AER32 AKN → ANC Jun 20, 00:49 UTCJun 20, 01:50 UTC1h 0m
2026-06-19 AER32 ANC → AKN Jun 19, 23:04 UTCJun 20, 00:09 UTC1h 5m
2026-06-19 AER714 - Jun 19, 19:39 UTCJun 19, 20:34 UTC55m
2026-06-19 AER714 ANC → ADQ Jun 19, 17:49 UTCJun 19, 18:49 UTC1h 0m
2026-06-19 AER52 ANC → DLG Jun 19, 00:14 UTCJun 19, 01:19 UTC1h 5m
2026-06-18 AER52 ANC → DLG Jun 18, 22:05 UTCJun 18, 23:20 UTC1h 15m
2026-06-18 AER147 ANC → ADQ Jun 18, 19:05 UTCJun 18, 20:05 UTC1h 0m
2026-06-18 AER147 ANC → ADQ Jun 18, 17:25 UTCJun 18, 18:25 UTC1h 0m
2026-06-17 AER32 AKN → ANC Jun 17, 20:50 UTCJun 17, 21:55 UTC1h 5m
2026-06-17 AER32 ANC → AKN Jun 17, 19:00 UTCJun 17, 20:10 UTC1h 10m
2026-06-17 AER42 CDV → ANC Jun 17, 15:55 UTCJun 17, 16:30 UTC35m
2026-06-17 AER42 - Jun 17, 14:30 UTCJun 17, 15:15 UTC45m
2026-06-17 AER42 - Jun 17, 12:25 UTCJun 17, 13:55 UTC1h 30m
2026-06-17 AER44 ANC → ANC Jun 17, 03:00 UTCJun 17, 04:45 UTC1h 45m
2026-06-16 AER45 - Jun 16, 22:35 UTCJun 16, 23:15 UTC40m
2026-06-16 AER45 - Jun 16, 21:20 UTCJun 16, 22:05 UTC45m
2026-06-16 AER45 - Jun 16, 19:19 UTCJun 16, 20:40 UTC1h 21m
2026-06-16 AER52 ANC → DLG Jun 16, 15:55 UTCJun 16, 17:10 UTC1h 15m
2026-06-16 AER52 ANC → DLG Jun 16, 14:15 UTCJun 16, 15:24 UTC1h 10m
2026-06-16 AER910 - Jun 16, 05:50 UTCJun 16, 07:34 UTC1h 45m
2026-06-16 AER910 - Jun 16, 02:15 UTCJun 16, 03:00 UTC45m
2026-06-16 AER910 - Jun 16, 00:24 UTCJun 16, 01:40 UTC1h 15m
2026-06-15 AER43 ANC → KTN Jun 15, 19:10 UTCJun 15, 21:14 UTC2h 5m
2026-06-15 AER43 ANC → KTN Jun 15, 17:40 UTCJun 15, 17:54 UTC15m
2026-06-15 AER43 ANC → KTN Jun 15, 16:09 UTCJun 15, 16:55 UTC45m
2026-06-15 AER43 ANC → KTN Jun 15, 11:30 UTCJun 15, 14:15 UTC2h 45m
2026-06-15 AERT8 - Jun 15, 00:35 UTCJun 15, 01:55 UTC1h 20m
2026-06-14 AER146 ANC → ADQ Jun 14, 22:40 UTCJun 14, 23:44 UTC1h 5m
2026-06-14 AERT8 - Jun 14, 18:55 UTCJun 14, 20:20 UTC1h 25m
2026-06-14 AER145 ANC → ADQ Jun 14, 17:05 UTCJun 14, 18:10 UTC1h 5m
2026-06-13 AER36 - Jun 13, 23:35 UTCJun 14, 00:25 UTC50m
2026-06-13 AER36 - Jun 13, 22:15 UTCJun 13, 22:55 UTC40m
2026-06-12 AER53 ANC → DLG Jun 12, 21:15 UTCJun 12, 22:30 UTC1h 15m
2026-06-12 AER53 ANC → DLG Jun 12, 19:05 UTCJun 12, 20:20 UTC1h 15m
2026-06-12 AER42 ANC → YAK Jun 12, 16:15 UTCJun 12, 17:05 UTC50m
2026-06-12 AER42 ANC → YAK Jun 12, 15:00 UTCJun 12, 15:45 UTC45m
2026-06-12 AER42 ANC → YAK Jun 12, 12:50 UTCJun 12, 14:10 UTC1h 20m
2026-06-12 AERT8 ANC → ANC Jun 12, 01:15 UTCJun 12, 02:35 UTC1h 20m
2026-06-11 AER35 - Jun 11, 21:20 UTCJun 11, 22:15 UTC55m
2026-06-11 AER35 ANC → PDB Jun 11, 19:45 UTCJun 11, 20:30 UTC45m
2026-06-11 AER31 AKN → ANC Jun 11, 16:00 UTCJun 11, 17:10 UTC1h 10m
2026-06-11 AER31 AKN → ANC Jun 11, 14:00 UTCJun 11, 15:10 UTC1h 10m
2026-06-11 AER912 ANC → CDB Jun 11, 04:40 UTCJun 11, 06:25 UTC1h 45m
2026-06-10 AER912 ANC → CDB Jun 10, 23:20 UTCJun 11, 00:55 UTC1h 35m
2026-06-10 AER52 ANC → DLG Jun 10, 17:20 UTCJun 10, 18:30 UTC1h 10m
2026-06-10 AER52 ANC → DLG Jun 10, 16:35 UTCJun 10, 16:55 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 N119AX page for operator, model, and routing details .

Mode-S A04DB8 frequently asked

What is Mode-S code A04DB8?
A04DB8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N119AX.
Where is Mode-S A04DB8 registered?
Mode-S code A04DB8 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 A04DB8 broadcasting right now?
No active broadcast right now. Last signal was 25d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A04DB8, octal 50046670, decimal 10,505,656.
What flights does A04DB8 operate?
Mode-S A04DB8 has broadcast 20 distinct callsigns, including AER41, AER21, AER43, AER66, AER52.