sensors Mode-S transponder

A0822C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N13161 · EMBRAER ERJ-145XR · operated by UNITED AIRLINES INC

Hex
A0822C
Octal
50101054
Decimal
10,519,084
Country
US
Tail
N13161
Type
E45X
No current signal · last broadcast 17h ago
Flights observed
1
Distinct callsigns
1
Country
US
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S A0822C.

Country allocation

The ICAO 24-bit address A0822C 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 1 distinct

Callsign Airline Flights Last seen
UCA4970 CommutAir 1 2026-04-14

Recent flights last 1

DateFlightRouteTakeoffLandingDuration
2026-04-14 UCA4970 ALB → IAD Apr 14, 10:15 UTCApr 14, 11:05 UTC50m

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 N13161 page for operator, model, and routing details .

Mode-S A0822C frequently asked

What is Mode-S code A0822C?
A0822C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N13161.
Where is Mode-S A0822C registered?
Mode-S code A0822C 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 A0822C broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0822C, octal 50101054, decimal 10,519,084.
What flights does A0822C operate?
Mode-S A0822C has broadcast 1 distinct callsign, including UCA4970.