Apparatus

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sensors Mode-S transponder

A97A1A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N71EB · operated by CANCELLED/NOT ASSIGNED

Hex
A97A1A
Octal
52275032
Decimal
11,106,842
Country
US
Tail
N71EB
Type
C208
No current signal · last broadcast Jul 24, 04:05 UTC
Flights observed
39
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 04:05 UTC

Last known position

Most recent position reported by Mode-S A97A1A.

Country allocation

The ICAO 24-bit address A97A1A 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
TGR671 - 39 2026-07-24

Recent flights last 39

DateFlightRouteTakeoffLandingDuration
2026-07-24 TGR671 - Jul 24, 03:35 UTCJul 24, 04:05 UTC30m
2026-07-24 TGR671 - Jul 24, 00:40 UTCJul 24, 01:50 UTC1h 10m
2026-07-23 TGR671 - Jul 23, 05:20 UTCJul 23, 05:45 UTC25m
2026-07-23 TGR671 - Jul 23, 02:10 UTCJul 23, 02:50 UTC40m
2026-07-22 TGR671 - Jul 22, 21:50 UTCJul 22, 22:30 UTC40m
2026-07-21 TGR671 - Jul 21, 04:50 UTCJul 21, 05:25 UTC35m
2026-07-21 TGR671 - Jul 21, 01:55 UTCJul 21, 02:35 UTC40m
2026-07-20 TGR671 - Jul 20, 21:45 UTCJul 20, 22:15 UTC30m
2026-07-20 TGR671 - Jul 20, 02:25 UTCJul 20, 03:15 UTC50m
2026-07-19 TGR671 - Jul 19, 22:00 UTCJul 19, 22:30 UTC30m
2026-07-19 TGR671 - Jul 19, 05:55 UTCJul 19, 06:10 UTC15m
2026-07-18 TGR671 - Jul 18, 22:45 UTCJul 18, 23:10 UTC25m
2026-07-17 TGR671 - Jul 17, 08:10 UTCJul 17, 08:54 UTC45m
2026-07-17 TGR671 - Jul 17, 06:00 UTCJul 17, 06:29 UTC30m
2026-07-17 TGR671 - Jul 17, 03:39 UTCJul 17, 04:14 UTC35m
2026-07-17 TGR671 - Jul 17, 01:15 UTCJul 17, 01:39 UTC25m
2026-07-16 TGR671 - Jul 16, 22:40 UTCJul 16, 23:10 UTC30m
2026-07-14 TGR671 - Jul 14, 20:55 UTCJul 14, 21:35 UTC40m
2026-07-14 TGR671 - Jul 14, 03:20 UTCJul 14, 03:55 UTC35m
2026-07-13 TGR671 - Jul 13, 22:40 UTCJul 13, 23:10 UTC30m
2026-07-09 TGR671 - Jul 9, 08:55 UTCJul 9, 10:10 UTC1h 15m
2026-07-08 TGR671 - Jul 8, 13:00 UTCJul 8, 14:00 UTC1h 0m
2026-05-06 TGR671 - May 6, 00:20 UTCMay 6, 01:01 UTC40m
2026-04-28 TGR671 - Apr 28, 07:15 UTCApr 28, 08:05 UTC50m
2026-04-28 TGR671 - Apr 28, 03:40 UTCApr 28, 04:05 UTC25m
2026-04-27 TGR671 - Apr 27, 22:15 UTCApr 27, 22:45 UTC30m
2026-04-24 TGR671 - Apr 24, 06:35 UTCApr 24, 07:00 UTC25m
2026-04-24 TGR671 - Apr 24, 01:30 UTCApr 24, 03:00 UTC1h 30m
2026-04-23 TGR671 - Apr 23, 21:05 UTCApr 23, 21:35 UTC30m
2026-04-23 TGR671 - Apr 23, 06:10 UTCApr 23, 06:40 UTC30m
2026-04-22 TGR671 - Apr 22, 20:50 UTCApr 22, 21:25 UTC35m
2026-04-22 TGR671 - Apr 22, 01:50 UTCApr 22, 02:40 UTC50m
2026-04-16 TGR671 - Apr 16, 23:50 UTCApr 17, 00:44 UTC55m
2026-04-16 TGR671 - Apr 16, 03:14 UTCApr 16, 03:55 UTC40m
2026-04-16 TGR671 - Apr 16, 01:10 UTCApr 16, 03:04 UTC1h 55m
2026-04-15 TGR671 - Apr 15, 02:55 UTCApr 15, 03:30 UTC35m
2026-04-15 TGR671 - Apr 15, 01:05 UTCApr 15, 02:50 UTC1h 45m
2026-04-14 TGR671 - Apr 14, 12:50 UTCApr 14, 14:15 UTC1h 25m
2026-04-14 TGR671 - Apr 14, 10:50 UTCApr 14, 12:45 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 N71EB page for operator, model, and routing details .

Mode-S A97A1A frequently asked

What is Mode-S code A97A1A?
A97A1A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N71EB.
Where is Mode-S A97A1A registered?
Mode-S code A97A1A 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 A97A1A broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 04:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A97A1A, octal 52275032, decimal 11,106,842.
What flights does A97A1A operate?
Mode-S A97A1A has broadcast 1 distinct callsign, including TGR671.