sensors Mode-S transponder

A87CBE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N646NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A87CBE
Octal
52076276
Decimal
11,041,982
Country
US
Tail
N646NN
Type
CRJ9
Broadcasting now · callsign JIA5222 · 27,675 ft
Flights observed
9
Distinct callsigns
4
Country
US
Last broadcast
1d ago

Current position

A87CBE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A87CBE 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

Callsign Airline Flights Last seen
JIA5595 PSA Airlines 3 2026-04-13
JIA5287 PSA Airlines 3 2026-04-13
JIA5583 PSA Airlines 2 2026-04-13
JIA5252 - 1 2026-04-12

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-13 JIA5583 PHL → CVG Apr 13, 20:40 UTCApr 13, 22:15 UTC1h 35m
2026-04-13 JIA5583 PHL → CVG Apr 13, 18:18 UTCApr 13, 19:39 UTC1h 21m
2026-04-13 JIA5287 PHL → JAX Apr 13, 15:50 UTCApr 13, 16:10 UTC20m
2026-04-13 JIA5287 PHL → JAX Apr 13, 15:14 UTCApr 13, 16:21 UTC1h 7m
2026-04-13 JIA5287 PHL → JAX Apr 13, 12:45 UTCApr 13, 13:30 UTC45m
2026-04-13 JIA5595 STL → DCA Apr 13, 03:55 UTCApr 13, 04:05 UTC10m
2026-04-13 JIA5595 STL → DCA Apr 13, 03:00 UTCApr 13, 03:37 UTC37m
2026-04-13 JIA5595 STL → DCA Apr 13, 00:30 UTCApr 13, 01:55 UTC1h 25m
2026-04-12 JIA5252 - Apr 12, 18:33 UTCApr 12, 20:09 UTC1h 36m

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 N646NN page for operator, model, and routing details .

Mode-S A87CBE frequently asked

What is Mode-S code A87CBE?
A87CBE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N646NN.
Where is Mode-S A87CBE registered?
Mode-S code A87CBE 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 A87CBE broadcasting right now?
Yes. Mode-S A87CBE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A87CBE, octal 52076276, decimal 11,041,982.
What flights does A87CBE operate?
Mode-S A87CBE has broadcast 4 distinct callsigns, including JIA5595, JIA5287, JIA5583, JIA5252.