Apparatus

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sensors Mode-S transponder

A9C158

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N728AV · AIRBUS A-320 · operated by BANK OF UTAH TRUSTEE

Hex
A9C158
Octal
52340530
Decimal
11,125,080
Country
US
Tail
N728AV
Type
A320
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
378
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S A9C158.

Country allocation

The ICAO 24-bit address A9C158 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
AVR4847 Avianca Express 11 2026-07-24
AVR4846 Avianca Express 11 2026-07-24
AVR4836 Avianca Express 11 2026-07-25
AVR4831 - 11 2026-07-16
AVR4875 Avianca Express 10 2026-07-25
AVR4814 - 10 2026-07-19
AVR4813 Avianca Express 10 2026-07-19
AVR5246 - 9 2026-07-19
AVR5204 - 9 2026-07-19
AVR4878 - 9 2026-07-13
AVR4872 - 9 2026-07-25
AVR5216 Avianca Express 8 2026-07-24
AVR4879 - 8 2026-07-12
AVR4837 Avianca Express 8 2026-07-25
AVR4822 Avianca Express 8 2026-07-24
AVA045 - 8 2026-06-22
AVR4832 - 7 2026-07-16
AVR4823 Avianca Express 7 2026-07-25
AVR4804 - 7 2026-07-15
AVR4805 - 6 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AVA9491 BOG → LET Jul 26, 21:20 UTCJul 26, 22:00 UTC40m
2026-07-26 AVA9491 BOG → LET Jul 26, 20:25 UTCJul 26, 20:40 UTC15m
2026-07-26 AVA9411 VUP → BOG Jul 26, 17:40 UTCJul 26, 17:55 UTC15m
2026-07-26 AVA9216 CLO → BOG Jul 26, 15:30 UTCJul 26, 16:10 UTC40m
2026-07-26 AVA8419 BAQ → BOG Jul 26, 11:45 UTCJul 26, 12:45 UTC1h 0m
2026-07-26 AVA9534 BOG → BAQ Jul 26, 02:25 UTCJul 26, 03:30 UTC1h 5m
2026-07-25 AVR4837 BOG → PPN Jul 25, 22:20 UTCJul 25, 23:20 UTC1h 0m
2026-07-25 AVR4836 PPN → BOG Jul 25, 20:10 UTCJul 25, 21:05 UTC55m
2026-07-25 AVR4872 BOG → BOG Jul 25, 14:40 UTCJul 25, 17:15 UTC2h 35m
2026-07-25 AVR4875 BGA → BOG Jul 25, 12:50 UTCJul 25, 13:00 UTC10m
2026-07-25 AVR4823 SMR → BOG Jul 25, 02:25 UTCJul 25, 03:35 UTC1h 10m
2026-07-25 AVR4863 BOG → SMR Jul 25, 00:10 UTCJul 25, 01:00 UTC50m
2026-07-24 AVR4846 PEI → BOG Jul 24, 22:05 UTCJul 24, 22:30 UTC25m
2026-07-24 AVR4847 BOG → PEI Jul 24, 19:50 UTCJul 24, 20:20 UTC30m
2026-07-24 AVR4872 BOG → BOG Jul 24, 15:10 UTCJul 24, 17:55 UTC2h 45m
2026-07-24 AVR4875 BGA → BOG Jul 24, 13:45 UTCJul 24, 14:05 UTC20m
2026-07-24 AVR5216 BOG → BGA Jul 24, 11:05 UTCJul 24, 11:20 UTC15m
2026-07-24 AVR4823 SMR → BOG Jul 24, 02:35 UTCJul 24, 03:05 UTC30m
2026-07-24 AVR4822 BOG → SMR Jul 24, 00:15 UTCJul 24, 01:10 UTC55m
2026-07-23 AVR4837 BOG → PPN Jul 23, 20:45 UTCJul 23, 21:50 UTC1h 5m
2026-07-23 AVR4836 PPN → BOG Jul 23, 18:05 UTCJul 23, 19:00 UTC55m
2026-07-23 AVR4871 - Jul 23, 16:25 UTCJul 23, 16:55 UTC30m
2026-07-23 AVR4861 SMR → BOG Jul 23, 03:25 UTCJul 23, 04:25 UTC1h 0m
2026-07-23 AVR4864 BOG → SMR Jul 23, 01:25 UTCJul 23, 02:15 UTC50m
2026-07-22 AVA9220 CLO → BOG Jul 22, 23:55 UTCJul 23, 00:15 UTC20m
2026-07-22 AVA9545 CTG → BOG Jul 22, 18:20 UTCJul 22, 18:35 UTC15m
2026-07-22 AVA9269 SMR → BOG Jul 22, 15:50 UTCJul 22, 16:15 UTC25m
2026-07-22 AVA8484 BOG → SMR Jul 22, 13:40 UTCJul 22, 14:35 UTC55m
2026-07-22 AVA8537 CTG → BOG Jul 22, 11:20 UTCJul 22, 12:25 UTC1h 5m
2026-07-22 AVA9372 MDE → CTG Jul 22, 03:45 UTCJul 22, 04:25 UTC40m
2026-07-22 AVA9304 BOG → MDE Jul 22, 01:55 UTCJul 22, 02:15 UTC20m
2026-07-21 AVA078 BOG → CUR Jul 21, 19:30 UTCJul 21, 23:55 UTC4h 25m
2026-07-21 AVR4892 PPN → BOG Jul 21, 15:15 UTCJul 21, 17:45 UTC2h 30m
2026-07-21 AVA8418 CLO → BOG Jul 21, 13:35 UTCJul 21, 13:50 UTC15m
2026-07-21 AVA9253 MDE → CLO Jul 21, 01:50 UTCJul 21, 02:05 UTC15m
2026-07-20 AVA9527 - Jul 20, 22:30 UTCJul 20, 22:45 UTC15m
2026-07-20 AVA076 BOG → BOG Jul 20, 12:20 UTCJul 20, 20:00 UTC7h 40m
2026-07-20 AVR4861 SMR → BOG Jul 20, 03:45 UTCJul 20, 04:50 UTC1h 5m
2026-07-20 AVR4864 BOG → SMR Jul 20, 01:25 UTCJul 20, 02:30 UTC1h 5m
2026-07-19 AVR5224 - Jul 19, 21:35 UTCJul 19, 23:55 UTC2h 20m
2026-07-19 AVR5204 - Jul 19, 19:30 UTCJul 19, 19:55 UTC25m
2026-07-19 AVR5246 - Jul 19, 17:55 UTCJul 19, 18:15 UTC20m
2026-07-19 AVR4813 BGA → BOG Jul 19, 16:25 UTCJul 19, 16:40 UTC15m
2026-07-19 AVR4814 - Jul 19, 14:40 UTCJul 19, 14:55 UTC15m
2026-07-19 AVA8538 PEI → BOG Jul 19, 10:30 UTCJul 19, 10:55 UTC25m
2026-07-19 AVA9817 - Jul 19, 04:05 UTCJul 19, 04:30 UTC25m
2026-07-19 AVA9315 MDE → BOG Jul 19, 02:40 UTCJul 19, 03:00 UTC20m
2026-07-19 AVA9232 BAQ → BOG Jul 19, 00:50 UTCJul 19, 01:00 UTC10m
2026-07-18 AVA9842 - Jul 18, 23:00 UTCJul 18, 23:25 UTC25m
2026-07-18 AVA9841 - Jul 18, 21:15 UTCJul 18, 21:40 UTC25m

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 N728AV page for operator, model, and routing details .

Mode-S A9C158 frequently asked

What is Mode-S code A9C158?
A9C158 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N728AV.
Where is Mode-S A9C158 registered?
Mode-S code A9C158 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 A9C158 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9C158, octal 52340530, decimal 11,125,080.
What flights does A9C158 operate?
Mode-S A9C158 has broadcast 20 distinct callsigns, including AVR4847, AVR4846, AVR4836, AVR4831, AVR4875.