Apparatus

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sensors Mode-S transponder

A97A6D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N71HK · operated by SAK IV LLC

Hex
A97A6D
Octal
52275155
Decimal
11,106,925
Country
US
Tail
N71HK
Type
AT8T
No current signal · last broadcast 1h ago
Flights observed
131
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A97A6D.

Country allocation

The ICAO 24-bit address A97A6D 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
N71HK - 131 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 N71HK - Jul 18, 14:10 UTCJul 18, 14:20 UTC10m
2026-07-18 N71HK - Jul 18, 11:35 UTCJul 18, 13:40 UTC2h 5m
2026-07-18 N71HK - Jul 18, 01:05 UTCJul 18, 01:30 UTC25m
2026-07-18 N71HK - Jul 18, 00:15 UTCJul 18, 00:29 UTC15m
2026-07-17 N71HK - Jul 17, 18:00 UTCJul 17, 18:19 UTC20m
2026-07-17 N71HK - Jul 17, 16:04 UTCJul 17, 16:29 UTC25m
2026-07-17 N71HK - Jul 17, 12:45 UTCJul 17, 13:20 UTC35m
2026-07-17 N71HK - Jul 17, 10:50 UTCJul 17, 11:25 UTC35m
2026-07-15 N71HK - Jul 15, 22:25 UTCJul 15, 22:35 UTC10m
2026-07-15 N71HK - Jul 15, 12:20 UTCJul 15, 14:35 UTC2h 15m
2026-07-14 N71HK - Jul 14, 20:20 UTCJul 14, 20:40 UTC20m
2026-07-14 N71HK - Jul 14, 14:25 UTCJul 14, 14:45 UTC20m
2026-07-14 N71HK - Jul 14, 13:10 UTCJul 14, 13:35 UTC25m
2026-07-14 N71HK - Jul 14, 11:25 UTCJul 14, 12:10 UTC45m
2026-07-11 N71HK - Jul 11, 22:30 UTCJul 11, 23:10 UTC40m
2026-07-10 N71HK - Jul 10, 22:50 UTCJul 10, 23:00 UTC10m
2026-07-10 N71HK - Jul 10, 21:25 UTCJul 10, 21:55 UTC30m
2026-07-10 N71HK - Jul 10, 20:00 UTCJul 10, 20:25 UTC25m
2026-07-10 N71HK - Jul 10, 17:10 UTCJul 10, 18:15 UTC1h 5m
2026-07-09 N71HK - Jul 9, 22:50 UTCJul 10, 00:50 UTC2h 0m
2026-07-09 N71HK - Jul 9, 20:35 UTCJul 9, 21:40 UTC1h 5m
2026-07-09 N71HK - Jul 9, 19:20 UTCJul 9, 20:00 UTC40m
2026-07-09 N71HK - Jul 9, 18:15 UTCJul 9, 18:25 UTC10m
2026-07-09 N71HK - Jul 9, 17:35 UTCJul 9, 17:45 UTC10m
2026-07-09 N71HK - Jul 9, 15:50 UTCJul 9, 16:45 UTC55m
2026-07-09 N71HK - Jul 9, 14:55 UTCJul 9, 15:05 UTC10m
2026-07-09 N71HK - Jul 9, 13:30 UTCJul 9, 14:00 UTC30m
2026-07-08 N71HK - Jul 8, 23:15 UTCJul 8, 23:25 UTC10m
2026-07-08 N71HK - Jul 8, 20:40 UTCJul 8, 21:45 UTC1h 5m
2026-07-08 N71HK - Jul 8, 01:20 UTCJul 8, 02:15 UTC55m
2026-07-08 N71HK - Jul 8, 00:30 UTCJul 8, 00:50 UTC20m
2026-07-07 N71HK - Jul 7, 23:35 UTCJul 8, 00:00 UTC25m
2026-07-07 N71HK - Jul 7, 17:00 UTCJul 7, 18:25 UTC1h 25m
2026-07-07 N71HK - Jul 7, 14:00 UTCJul 7, 14:10 UTC10m
2026-07-05 N71HK - Jul 5, 20:20 UTCJul 5, 20:55 UTC35m
2026-07-05 N71HK - Jul 5, 16:50 UTCJul 5, 18:35 UTC1h 45m
2026-07-03 N71HK - Jul 3, 21:25 UTCJul 4, 01:40 UTC4h 15m
2026-07-03 N71HK - Jul 3, 13:15 UTCJul 3, 16:55 UTC3h 40m
2026-07-02 N71HK - Jul 2, 14:45 UTCJul 2, 19:20 UTC4h 35m
2026-07-02 N71HK - Jul 2, 11:55 UTCJul 2, 14:40 UTC2h 45m
2026-07-02 N71HK - Jul 2, 00:05 UTCJul 2, 02:15 UTC2h 10m
2026-07-01 N71HK - Jul 1, 20:40 UTCJul 1, 23:35 UTC2h 55m
2026-07-01 N71HK - Jul 1, 00:55 UTCJul 1, 01:50 UTC55m
2026-06-30 N71HK MHE → MHE Jun 30, 23:25 UTCJul 1, 00:50 UTC1h 25m
2026-06-30 N71HK - Jun 30, 21:35 UTCJun 30, 21:45 UTC10m
2026-06-30 N71HK - Jun 30, 19:45 UTCJun 30, 20:30 UTC45m
2026-06-30 N71HK - Jun 30, 19:00 UTCJun 30, 19:10 UTC10m
2026-06-30 N71HK - Jun 30, 18:20 UTCJun 30, 18:30 UTC10m
2026-06-30 N71HK - Jun 30, 16:35 UTCJun 30, 16:45 UTC10m
2026-06-28 N71HK - Jun 28, 18:29 UTCJun 28, 19:14 UTC45m

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 N71HK page for operator, model, and routing details .

Mode-S A97A6D frequently asked

What is Mode-S code A97A6D?
A97A6D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N71HK.
Where is Mode-S A97A6D registered?
Mode-S code A97A6D 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 A97A6D broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A97A6D, octal 52275155, decimal 11,106,925.
What flights does A97A6D operate?
Mode-S A97A6D has broadcast 1 distinct callsign, including N71HK.