Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A99271

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N716BA · operated by HENDRIX TODD M

Hex
A99271
Octal
52311161
Decimal
11,113,073
Country
US
Tail
N716BA
Type
A5
Broadcasting now · callsign N716BA · 2,600 ft
Flights observed
20
Distinct callsigns
1
Country
US
Last broadcast
16h ago

Current position

A99271 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A99271 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
N716BA - 20 2026-07-13

Recent flights last 20

DateFlightRouteTakeoffLandingDuration
2026-07-13 N716BA - Jul 13, 23:35 UTCJul 13, 23:50 UTC15m
2026-07-13 N716BA - Jul 13, 22:10 UTCJul 13, 22:25 UTC15m
2026-07-13 N716BA - Jul 13, 20:35 UTCJul 13, 21:30 UTC55m
2026-07-13 N716BA - Jul 13, 19:25 UTCJul 13, 19:40 UTC15m
2026-07-13 N716BA - Jul 13, 16:50 UTCJul 13, 17:30 UTC40m
2026-07-13 N716BA - Jul 13, 15:45 UTCJul 13, 16:05 UTC20m
2026-06-11 N716BA - Jun 11, 21:25 UTCJun 11, 22:25 UTC1h 0m
2026-06-11 N716BA BFL → BFL Jun 11, 20:05 UTCJun 11, 21:00 UTC55m
2026-06-10 N716BA BFL → BFL Jun 10, 21:55 UTCJun 10, 22:45 UTC50m
2026-06-10 N716BA BFL → BFL Jun 10, 20:00 UTCJun 10, 21:10 UTC1h 10m
2026-06-10 N716BA - Jun 10, 18:45 UTCJun 10, 19:40 UTC55m
2026-06-10 N716BA - Jun 10, 17:25 UTCJun 10, 18:20 UTC55m
2026-05-29 N716BA - May 29, 17:35 UTCMay 29, 17:55 UTC20m
2026-05-29 N716BA - May 29, 16:45 UTCMay 29, 17:00 UTC15m
2026-05-29 N716BA - May 29, 00:15 UTCMay 29, 00:30 UTC15m
2026-05-28 N716BA - May 28, 23:30 UTCMay 28, 23:40 UTC10m
2026-05-28 N716BA BFL → BFL May 28, 21:50 UTCMay 28, 22:55 UTC1h 5m
2026-05-28 N716BA - May 28, 20:55 UTCMay 28, 21:15 UTC20m
2026-05-28 N716BA - May 28, 20:10 UTCMay 28, 20:25 UTC15m
2026-05-27 N716BA BFL → BFL May 27, 20:55 UTCMay 28, 00:55 UTC4h 0m

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 N716BA page for operator, model, and routing details .

Mode-S A99271 frequently asked

What is Mode-S code A99271?
A99271 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N716BA.
Where is Mode-S A99271 registered?
Mode-S code A99271 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 A99271 broadcasting right now?
Yes. Mode-S A99271 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A99271, octal 52311161, decimal 11,113,073.
What flights does A99271 operate?
Mode-S A99271 has broadcast 1 distinct callsign, including N716BA.