sensors Mode-S transponder

AC76AE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N902AV · operated by UMB BANK NA TRUSTEE

Hex
AC76AE
Octal
53073256
Decimal
11,302,574
Country
US
Tail
N902AV
Type
A20N
No current signal · last broadcast 12h ago
Flights observed
15
Distinct callsigns
6
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S AC76AE.

Country allocation

The ICAO 24-bit address AC76AE 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 6 distinct

Callsign Airline Flights Last seen
TAI561 - 4 2026-04-13
TAI560 - 4 2026-04-13
TAI522 - 3 2026-04-13
TAI580 - 2 2026-04-14
TAI581 - 1 2026-04-14
TAI523 Avianca El Salvador 1 2026-04-13

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 TAI581 - Apr 14, 09:40 UTCApr 14, 11:05 UTC1h 25m
2026-04-14 TAI580 - Apr 14, 07:10 UTCApr 14, 08:05 UTC55m
2026-04-14 TAI580 - Apr 14, 05:15 UTCApr 14, 07:10 UTC1h 55m
2026-04-13 TAI523 LAX → SAL Apr 13, 21:05 UTCApr 13, 23:40 UTC2h 35m
2026-04-13 TAI522 - Apr 13, 17:45 UTCApr 13, 19:25 UTC1h 40m
2026-04-13 TAI522 - Apr 13, 15:50 UTCApr 13, 19:25 UTC3h 35m
2026-04-13 TAI522 - Apr 13, 14:25 UTCApr 13, 16:05 UTC1h 40m
2026-04-13 TAI561 - Apr 13, 11:55 UTCApr 13, 12:15 UTC20m
2026-04-13 TAI561 - Apr 13, 08:20 UTCApr 13, 12:15 UTC3h 55m
2026-04-13 TAI561 - Apr 13, 07:55 UTCApr 13, 11:15 UTC3h 20m
2026-04-13 TAI561 - Apr 13, 07:10 UTCApr 13, 08:15 UTC1h 5m
2026-04-13 TAI560 - Apr 13, 04:20 UTCApr 13, 05:35 UTC1h 15m
2026-04-13 TAI560 - Apr 13, 03:55 UTCApr 13, 05:35 UTC1h 40m
2026-04-13 TAI560 - Apr 13, 00:45 UTCApr 13, 04:15 UTC3h 30m
2026-04-12 TAI560 - Apr 12, 23:55 UTCApr 13, 03:50 UTC3h 55m

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 N902AV page for operator, model, and routing details .

Mode-S AC76AE frequently asked

What is Mode-S code AC76AE?
AC76AE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N902AV.
Where is Mode-S AC76AE registered?
Mode-S code AC76AE 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 AC76AE broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC76AE, octal 53073256, decimal 11,302,574.
What flights does AC76AE operate?
Mode-S AC76AE has broadcast 6 distinct callsigns, including TAI561, TAI560, TAI522, TAI580, TAI581.