Apparatus

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sensors Mode-S transponder

AA0531

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N745AV · AIRBUS A-320 · operated by UMB BANK NA TRUSTEE

Hex
AA0531
Octal
52402461
Decimal
11,142,449
Country
US
Tail
N745AV
Type
A320
No current signal · last broadcast 2h ago
Flights observed
306
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AA0531.

Country allocation

The ICAO 24-bit address AA0531 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
TAI385 - 9 2026-07-08
TAI384 Avianca El Salvador 7 2026-06-17
AVA008 - 6 2026-07-06
AVA005 - 5 2026-07-06
AVA9774 - 4 2026-06-16
AVA051 - 4 2026-06-15
AVA9776 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-28
AVA9534 - 3 2026-07-12
AVA9491 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-18
AVA9445 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-06-16
AVA9361 - 3 2026-07-11
AVA9330 - 3 2026-07-11
AVA250 - 3 2026-07-03
AVA028 - 3 2026-07-09
TAI585 - 2 2026-06-19
TAI584 Avianca El Salvador 2 2026-06-19
TAI583 - 2 2026-06-23
TAI582 - 2 2026-06-23
AVR4812 - 2 2026-07-10
AVR4805 - 2 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AVA9517 BOG → BOG Jul 14, 00:30 UTCJul 14, 03:45 UTC3h 15m
2026-07-13 AVA9842 - Jul 13, 22:45 UTCJul 13, 23:15 UTC30m
2026-07-13 AVA9794 - Jul 13, 16:55 UTCJul 13, 19:40 UTC2h 45m
2026-07-13 AVA9712 - Jul 13, 15:15 UTCJul 13, 15:35 UTC20m
2026-07-13 AVA8553 - Jul 13, 13:10 UTCJul 13, 13:25 UTC15m
2026-07-13 AVA9458 - Jul 13, 03:40 UTCJul 13, 11:45 UTC8h 5m
2026-07-13 AVA9371 - Jul 13, 01:55 UTCJul 13, 02:10 UTC15m
2026-07-12 AVA9472 - Jul 12, 23:50 UTCJul 13, 00:05 UTC15m
2026-07-12 AVA9351 - Jul 12, 22:20 UTCJul 12, 22:35 UTC15m
2026-07-12 AVA9340 - Jul 12, 20:25 UTCJul 12, 20:40 UTC15m
2026-07-12 AVA8561 - Jul 12, 18:30 UTCJul 12, 19:01 UTC30m
2026-07-12 AVA9782 - Jul 12, 15:55 UTCJul 12, 16:01 UTC5m
2026-07-12 AVA9782 - Jul 12, 14:20 UTCJul 12, 14:50 UTC30m
2026-07-12 AVA8419 - Jul 12, 12:30 UTCJul 12, 12:45 UTC15m
2026-07-12 AVA9534 - Jul 12, 02:10 UTCJul 12, 02:25 UTC15m
2026-07-11 AVA9743 BOG → BOG Jul 11, 21:25 UTCJul 12, 00:40 UTC3h 15m
2026-07-11 AVA9361 - Jul 11, 20:00 UTCJul 11, 20:15 UTC15m
2026-07-11 AVA9330 - Jul 11, 18:00 UTCJul 11, 18:15 UTC15m
2026-07-11 AVA8427 - Jul 11, 15:00 UTCJul 11, 15:15 UTC15m
2026-07-11 AVA9354 - Jul 11, 13:10 UTCJul 11, 13:25 UTC15m
2026-07-11 AVA187 - Jul 11, 07:05 UTCJul 11, 10:55 UTC3h 50m
2026-07-11 AVA186 - Jul 11, 02:25 UTCJul 11, 05:10 UTC2h 45m
2026-07-11 AVA186 - Jul 11, 00:50 UTCJul 11, 01:05 UTC15m
2026-07-10 AVR4812 - Jul 10, 15:05 UTCJul 10, 18:05 UTC3h 0m
2026-07-10 AVA9454 - Jul 10, 11:05 UTCJul 10, 13:45 UTC2h 40m
2026-07-10 AVA9819 - Jul 10, 01:55 UTCJul 10, 05:10 UTC3h 15m
2026-07-09 AVA029 MCO → BOG Jul 9, 19:45 UTCJul 9, 23:15 UTC3h 30m
2026-07-09 AVA028 - Jul 9, 16:50 UTCJul 9, 17:45 UTC55m
2026-07-09 AVA028 - Jul 9, 14:10 UTCJul 9, 14:25 UTC15m
2026-07-09 AVA9245 - Jul 9, 12:00 UTCJul 9, 12:15 UTC15m
2026-07-09 AVR4805 - Jul 9, 00:25 UTCJul 9, 00:45 UTC20m
2026-07-08 AVR4804 - Jul 8, 22:30 UTCJul 8, 22:45 UTC15m
2026-07-08 TAI385 - Jul 8, 16:25 UTCJul 8, 19:30 UTC3h 5m
2026-07-08 AVA9308 - Jul 8, 01:10 UTCJul 8, 01:20 UTC10m
2026-07-07 AVA9351 - Jul 7, 23:00 UTCJul 7, 23:15 UTC15m
2026-07-07 AVA203 - Jul 7, 18:05 UTCJul 7, 18:50 UTC45m
2026-07-07 AVA202 MDE → MCO Jul 7, 15:15 UTCJul 7, 16:10 UTC55m
2026-07-06 AVA9330 - Jul 6, 18:20 UTCJul 6, 18:35 UTC15m
2026-07-06 AVA005 - Jul 6, 12:25 UTCJul 6, 12:45 UTC20m
2026-07-06 AVA008 - Jul 6, 06:50 UTCJul 6, 07:20 UTC30m
2026-07-06 AVA008 - Jul 6, 04:10 UTCJul 6, 04:25 UTC15m
2026-07-06 AVA253 - Jul 6, 00:45 UTCJul 6, 01:05 UTC20m
2026-07-05 AVA253 - Jul 5, 23:00 UTCJul 5, 23:50 UTC50m
2026-07-05 AVA252 - Jul 5, 20:25 UTCJul 5, 20:40 UTC15m
2026-07-05 AVA243 - Jul 5, 16:10 UTCJul 5, 16:20 UTC10m
2026-07-04 AVA167 - Jul 4, 20:30 UTCJul 5, 04:40 UTC8h 10m
2026-07-03 AVA251 SDQ → BOG Jul 3, 23:10 UTCJul 4, 00:05 UTC55m
2026-07-03 AVA250 - Jul 3, 20:50 UTCJul 3, 21:30 UTC40m
2026-07-03 AVA067 - Jul 3, 15:10 UTCJul 3, 15:45 UTC35m
2026-07-02 AVA066 - Jul 2, 23:35 UTCJul 3, 00:10 UTC35m

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 N745AV page for operator, model, and routing details .

Mode-S AA0531 frequently asked

What is Mode-S code AA0531?
AA0531 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N745AV.
Where is Mode-S AA0531 registered?
Mode-S code AA0531 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 AA0531 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA0531, octal 52402461, decimal 11,142,449.
What flights does AA0531 operate?
Mode-S AA0531 has broadcast 20 distinct callsigns, including TAI385, TAI384, AVA008, AVA005, AVA9774.