sensors Mode-S transponder

AAC33E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N793AV · BOEING 787-8 Dreamliner · operated by UMB BANK NA TRUSTEE

Hex
AAC33E
Octal
52541476
Decimal
11,191,102
Country
US
Tail
N793AV
Type
B788
No current signal · last broadcast 12h ago
Flights observed
7
Distinct callsigns
4
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S AAC33E.

Country allocation

The ICAO 24-bit address AAC33E 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 4 distinct

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 AVA088 - Apr 14, 10:35 UTCApr 14, 10:55 UTC20m
2026-04-14 AVA087 BOG → EZE Apr 14, 07:45 UTCApr 14, 08:35 UTC50m
2026-04-13 AVA019 BCN → BOG Apr 13, 20:05 UTCApr 13, 22:35 UTC2h 30m
2026-04-13 AVA019 BCN → BOG Apr 13, 12:20 UTCApr 13, 14:25 UTC2h 5m
2026-04-13 AVA019 BCN → BOG Apr 13, 11:55 UTCApr 13, 12:15 UTC20m
2026-04-13 AVA018 BOG → BCN Apr 13, 05:40 UTCApr 13, 07:25 UTC1h 45m
2026-04-12 AVA018 BOG → BCN Apr 12, 23:55 UTCApr 13, 00:25 UTC30m

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 N793AV page for operator, model, and routing details .

Mode-S AAC33E frequently asked

What is Mode-S code AAC33E?
AAC33E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N793AV.
Where is Mode-S AAC33E registered?
Mode-S code AAC33E 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 AAC33E 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 AAC33E, octal 52541476, decimal 11,191,102.
What flights does AAC33E operate?
Mode-S AAC33E has broadcast 4 distinct callsigns, including AVA019, AVA018, AVA088, AVA087.