sensors Mode-S transponder

A86A2B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N641NN · operated by AMERICAN AIRLINES INC

Hex
A86A2B
Octal
52065053
Decimal
11,037,227
Country
US
Tail
N641NN
Type
CRJ9
No current signal · last broadcast 20h ago
Flights observed
11
Distinct callsigns
7
Country
US
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S A86A2B.

Country allocation

The ICAO 24-bit address A86A2B 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 7 distinct

Callsign Airline Flights Last seen
JIA5075 PSA Airlines 3 2026-04-13
JIA5630 - 2 2026-04-13
JIA5251 - 2 2026-04-13
JIA5516 - 1 2026-04-13
JIA5504 PSA Airlines 1 2026-04-14
JIA5458 - 1 2026-04-12
JIA5257 - 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 JIA5504 GSP → PHL Apr 14, 10:10 UTCApr 14, 11:05 UTC55m
2026-04-13 JIA5516 - Apr 13, 22:52 UTCApr 14, 00:31 UTC1h 39m
2026-04-13 JIA5075 MKE → PHL Apr 13, 19:50 UTCApr 13, 20:25 UTC35m
2026-04-13 JIA5075 MKE → PHL Apr 13, 18:40 UTCApr 13, 20:10 UTC1h 30m
2026-04-13 JIA5075 MKE → PHL Apr 13, 16:22 UTCApr 13, 17:49 UTC1h 27m
2026-04-13 JIA5251 - Apr 13, 12:20 UTCApr 13, 14:08 UTC1h 48m
2026-04-13 JIA5251 - Apr 13, 13:19 UTCApr 13, 14:51 UTC1h 32m
2026-04-13 JIA5257 DFW → CHA Apr 13, 01:55 UTCApr 13, 03:25 UTC1h 30m
2026-04-13 JIA5630 - Apr 13, 00:20 UTCApr 13, 00:30 UTC10m
2026-04-12 JIA5630 - Apr 12, 23:55 UTCApr 13, 00:30 UTC35m
2026-04-12 JIA5458 - Apr 12, 18:10 UTCApr 12, 20:00 UTC1h 50m

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 N641NN page for operator, model, and routing details .

Mode-S A86A2B frequently asked

What is Mode-S code A86A2B?
A86A2B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N641NN.
Where is Mode-S A86A2B registered?
Mode-S code A86A2B 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 A86A2B broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A86A2B, octal 52065053, decimal 11,037,227.
What flights does A86A2B operate?
Mode-S A86A2B has broadcast 7 distinct callsigns, including JIA5075, JIA5630, JIA5251, JIA5516, JIA5504.