sensors Mode-S transponder

A35B42

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N315VC · BOEING 737 MAX 8 · operated by AMERICAN AIRLINES INC

Hex
A35B42
Octal
50655502
Decimal
10,705,730
Country
US
Tail
N315VC
Type
B38M
Transponder active on ground
Flights observed
8
Distinct callsigns
4
Country
US
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S A35B42.

Country allocation

The ICAO 24-bit address A35B42 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
AAL2880 - 3 2026-04-13
AAL1475 - 2 2026-04-13
AAL1370 - 2 2026-04-13
AAL2871 American Airlines 1 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 AAL2871 SNA → DFW Apr 13, 22:59 UTCApr 14, 02:36 UTC3h 37m
2026-04-13 AAL2880 - Apr 13, 20:18 UTCApr 13, 21:55 UTC1h 37m
2026-04-13 AAL2880 PHX → SMF Apr 13, 17:45 UTCApr 13, 19:20 UTC1h 35m
2026-04-13 AAL1475 - Apr 13, 15:50 UTCApr 13, 16:15 UTC25m
2026-04-13 AAL1475 BNA → PHX Apr 13, 12:35 UTCApr 13, 16:13 UTC3h 38m
2026-04-13 AAL1370 - Apr 13, 00:20 UTCApr 13, 02:25 UTC2h 5m
2026-04-12 AAL1370 - Apr 12, 23:55 UTCApr 13, 02:25 UTC2h 30m
2026-04-12 AAL2880 PHX → SMF Apr 12, 17:30 UTCApr 12, 19:25 UTC1h 55m

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 N315VC page for operator, model, and routing details .

Mode-S A35B42 frequently asked

What is Mode-S code A35B42?
A35B42 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N315VC.
Where is Mode-S A35B42 registered?
Mode-S code A35B42 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 A35B42 broadcasting right now?
Mode-S A35B42 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A35B42, octal 50655502, decimal 10,705,730.
What flights does A35B42 operate?
Mode-S A35B42 has broadcast 4 distinct callsigns, including AAL2880, AAL1475, AAL1370, AAL2871.