sensors Mode-S transponder

A1A8DA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N206FR · AIRBUS A-320 · operated by UMB BANK NA TRUSTEE

Hex
A1A8DA
Octal
50324332
Decimal
10,594,522
Country
US
Tail
N206FR
Type
A320
No current signal · last broadcast 14h ago
Flights observed
8
Distinct callsigns
5
Country
US
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S A1A8DA.

Country allocation

The ICAO 24-bit address A1A8DA 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 5 distinct

Callsign Airline Flights Last seen
AVA044 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-04-14
AVA9425 - 2 2026-04-13
AVA9396 - 1 2026-04-13
AVA9245 Avianca - Aerovias Nacionales de Colombia, S.A. 1 2026-04-13
AVA077 - 1 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 AVA044 BOG → MEX Apr 14, 08:05 UTCApr 14, 08:50 UTC45m
2026-04-14 AVA044 BOG → MEX Apr 14, 07:10 UTCApr 14, 07:30 UTC20m
2026-04-14 AVA044 BOG → MEX Apr 14, 06:35 UTCApr 14, 07:10 UTC35m
2026-04-13 AVA077 - Apr 13, 19:25 UTCApr 13, 19:45 UTC20m
2026-04-13 AVA9425 - Apr 13, 16:15 UTCApr 13, 16:30 UTC15m
2026-04-13 AVA9425 - Apr 13, 16:05 UTCApr 13, 16:15 UTC10m
2026-04-13 AVA9396 - Apr 13, 13:50 UTCApr 13, 14:05 UTC15m
2026-04-13 AVA9245 MDE → BOG Apr 13, 11:50 UTCApr 13, 12:05 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 N206FR page for operator, model, and routing details .

Mode-S A1A8DA frequently asked

What is Mode-S code A1A8DA?
A1A8DA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N206FR.
Where is Mode-S A1A8DA registered?
Mode-S code A1A8DA 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 A1A8DA broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1A8DA, octal 50324332, decimal 10,594,522.
What flights does A1A8DA operate?
Mode-S A1A8DA has broadcast 5 distinct callsigns, including AVA044, AVA9425, AVA9396, AVA9245, AVA077.