Apparatus

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sensors Mode-S transponder

A9B27C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N724AV · AIRBUS A-320 · operated by BANK OF UTAH TRUSTEE

Hex
A9B27C
Octal
52331174
Decimal
11,121,276
Country
US
Tail
N724AV
Type
A320
No current signal · last broadcast 3h ago
Flights observed
293
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A9B27C.

Country allocation

The ICAO 24-bit address A9B27C 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
AVR4837 - 9 2026-07-12
AVR4836 - 9 2026-07-12
AVR4875 Avianca Express 8 2026-07-10
AVR5246 - 7 2026-07-11
AVR5216 - 7 2026-07-10
AVR4823 - 7 2026-07-14
AVR4878 Avianca Express 6 2026-06-05
AVR4814 - 6 2026-06-05
AVR4805 - 6 2026-07-07
AVR4804 - 6 2026-07-06
AVR5225 - 5 2026-07-05
AVR5204 - 5 2026-07-11
AVR4872 - 5 2026-07-10
AVR4864 - 5 2026-07-06
AVR4847 - 5 2026-07-13
AVR4846 - 5 2026-07-13
AVR4813 Avianca Express 5 2026-06-01
AVR5238 - 4 2026-07-13
AVR5224 Avianca Express 4 2026-06-07
AVR4879 Avianca Express 4 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AVR4823 - Jul 14, 03:15 UTCJul 14, 03:30 UTC15m
2026-07-14 AVR4863 - Jul 14, 00:05 UTCJul 14, 00:20 UTC15m
2026-07-13 AVR4846 - Jul 13, 22:05 UTCJul 13, 22:35 UTC30m
2026-07-13 AVR4847 - Jul 13, 19:45 UTCJul 13, 20:10 UTC25m
2026-07-13 AVR4831 - Jul 13, 18:15 UTCJul 13, 18:25 UTC10m
2026-07-13 AVR4832 - Jul 13, 15:20 UTCJul 13, 15:35 UTC15m
2026-07-13 AVR5238 - Jul 13, 13:30 UTCJul 13, 14:00 UTC30m
2026-07-13 AVR4839 - Jul 13, 11:55 UTCJul 13, 12:20 UTC25m
2026-07-13 AVA9221 - Jul 13, 03:15 UTCJul 13, 03:30 UTC15m
2026-07-13 AVA8507 - Jul 13, 01:35 UTCJul 13, 01:50 UTC15m
2026-07-12 AVA8496 - Jul 12, 22:35 UTCJul 12, 22:55 UTC20m
2026-07-12 AVR4837 - Jul 12, 21:00 UTCJul 12, 21:15 UTC15m
2026-07-12 AVR4836 - Jul 12, 18:05 UTCJul 12, 18:20 UTC15m
2026-07-12 AVA045 MEX → BOG Jul 12, 11:50 UTCJul 12, 15:50 UTC4h 0m
2026-07-12 AVA044 BOG → MEX Jul 12, 05:35 UTCJul 12, 10:05 UTC4h 30m
2026-07-12 AVA9224 - Jul 12, 01:30 UTCJul 12, 01:45 UTC15m
2026-07-11 AVA9257 - Jul 11, 23:15 UTCJul 11, 23:25 UTC10m
2026-07-11 AVR5204 - Jul 11, 21:00 UTCJul 11, 21:15 UTC15m
2026-07-11 AVR5246 - Jul 11, 19:25 UTCJul 11, 19:35 UTC10m
2026-07-11 AVA8538 - Jul 11, 10:40 UTCJul 11, 11:00 UTC20m
2026-07-10 AVR4836 - Jul 10, 18:05 UTCJul 10, 18:10 UTC5m
2026-07-10 AVR4872 - Jul 10, 14:25 UTCJul 10, 16:50 UTC2h 25m
2026-07-10 AVR4875 BGA → BOG Jul 10, 12:50 UTCJul 10, 13:05 UTC15m
2026-07-10 AVR5216 - Jul 10, 10:40 UTCJul 10, 10:55 UTC15m
2026-07-10 AVA9309 - Jul 10, 04:00 UTCJul 10, 04:20 UTC20m
2026-07-09 AVA8466 - Jul 9, 12:00 UTCJul 9, 12:10 UTC10m
2026-07-09 AVA9324 - Jul 9, 00:10 UTCJul 9, 00:25 UTC15m
2026-07-08 AVA9351 - Jul 8, 22:30 UTCJul 8, 22:50 UTC20m
2026-07-07 AVA9758 - Jul 7, 20:30 UTCJul 7, 23:35 UTC3h 5m
2026-07-07 AVR4831 - Jul 7, 18:15 UTCJul 7, 18:30 UTC15m
2026-07-07 AVR4832 - Jul 7, 15:20 UTCJul 7, 15:35 UTC15m
2026-07-07 AVR5238 - Jul 7, 13:40 UTCJul 7, 14:00 UTC20m
2026-07-07 AVR4805 - Jul 7, 00:25 UTCJul 7, 00:40 UTC15m
2026-07-06 AVR4804 - Jul 6, 22:30 UTCJul 6, 22:45 UTC15m
2026-07-06 AVR4837 - Jul 6, 21:05 UTCJul 6, 21:15 UTC10m
2026-07-06 AVR4836 - Jul 6, 18:20 UTCJul 6, 18:35 UTC15m
2026-07-06 AVR4871 - Jul 6, 16:35 UTCJul 6, 17:00 UTC25m
2026-07-06 AVR4864 BOG → BOG Jul 6, 01:20 UTCJul 6, 04:35 UTC3h 15m
2026-07-05 AVR5225 - Jul 5, 23:55 UTCJul 6, 00:10 UTC15m
2026-07-04 AVA9779 - Jul 4, 00:15 UTCJul 4, 00:25 UTC10m
2026-07-03 AVA9776 - Jul 3, 23:05 UTCJul 3, 23:15 UTC10m
2026-07-01 AVA252 - Jul 1, 20:20 UTCJul 1, 23:55 UTC3h 35m
2026-06-17 AVA9270 BOG → MDE Jun 17, 14:55 UTCJun 17, 15:05 UTC10m
2026-06-17 AVA8459 - Jun 17, 12:45 UTCJun 17, 13:15 UTC30m
2026-06-17 AVA8506 - Jun 17, 10:20 UTCJun 17, 10:30 UTC10m
2026-06-16 AVA041 - Jun 16, 10:00 UTCJun 16, 10:15 UTC15m
2026-06-16 AVA8405 BOG → CLO Jun 16, 02:24 UTCJun 16, 02:50 UTC25m
2026-06-15 AVA9366 - Jun 15, 10:15 UTCJun 15, 10:30 UTC15m
2026-06-15 AVA8405 BOG → CLO Jun 15, 02:20 UTCJun 15, 02:35 UTC15m
2026-06-14 AVA9324 BOG → MDE Jun 14, 23:59 UTCJun 15, 00:15 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 N724AV page for operator, model, and routing details .

Mode-S A9B27C frequently asked

What is Mode-S code A9B27C?
A9B27C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N724AV.
Where is Mode-S A9B27C registered?
Mode-S code A9B27C 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 A9B27C broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9B27C, octal 52331174, decimal 11,121,276.
What flights does A9B27C operate?
Mode-S A9B27C has broadcast 20 distinct callsigns, including AVR4837, AVR4836, AVR4875, AVR5246, AVR5216.