Apparatus

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sensors Mode-S transponder

AA78BC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N774JS · CESSNA 525B Citation CJ3 · operated by GPOC AIR LLC

Hex
AA78BC
Octal
52474274
Decimal
11,172,028
Country
US
Tail
N774JS
Type
C25B
No current signal · last broadcast 1h ago
Flights observed
158
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S AA78BC.

Country allocation

The ICAO 24-bit address AA78BC 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
JRE774 - 158 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-28 JRE774 - Jun 28, 18:44 UTCJun 28, 18:59 UTC15m
2026-06-28 JRE774 - Jun 28, 02:14 UTCJun 28, 04:29 UTC2h 15m
2026-06-27 JRE774 - Jun 27, 20:14 UTCJun 27, 21:19 UTC1h 5m
2026-06-27 JRE774 - Jun 27, 16:20 UTCJun 27, 18:29 UTC2h 10m
2026-06-26 JRE774 - Jun 26, 23:34 UTCJun 27, 00:50 UTC1h 15m
2026-06-26 JRE774 - Jun 26, 21:39 UTCJun 26, 22:44 UTC1h 5m
2026-06-26 JRE774 - Jun 26, 18:20 UTCJun 26, 19:09 UTC50m
2026-06-26 JRE774 - Jun 26, 14:09 UTCJun 26, 17:04 UTC2h 55m
2026-06-25 JRE774 - Jun 25, 20:59 UTCJun 25, 22:54 UTC1h 55m
2026-06-25 JRE774 - Jun 25, 17:34 UTCJun 25, 18:50 UTC1h 15m
2026-06-25 JRE774 - Jun 25, 15:15 UTCJun 25, 16:20 UTC1h 5m
2026-06-25 JRE774 - Jun 25, 13:20 UTCJun 25, 14:20 UTC1h 0m
2026-06-24 JRE774 - Jun 24, 19:04 UTCJun 24, 19:55 UTC50m
2026-06-22 JRE774 - Jun 22, 20:44 UTCJun 22, 21:54 UTC1h 10m
2026-06-17 JRE774 - Jun 17, 01:40 UTCJun 17, 02:40 UTC1h 0m
2026-06-16 JRE774 - Jun 16, 14:55 UTCJun 16, 15:55 UTC1h 0m
2026-06-15 JRE774 - Jun 15, 20:30 UTCJun 16, 00:55 UTC4h 25m
2026-06-15 JRE774 - Jun 15, 17:54 UTCJun 15, 18:45 UTC50m
2026-06-14 JRE774 OCA → CMH Jun 14, 18:15 UTCJun 14, 21:20 UTC3h 5m
2026-06-14 JRE774 - Jun 14, 16:00 UTCJun 14, 16:25 UTC25m
2026-06-14 JRE774 - Jun 14, 13:10 UTCJun 14, 14:35 UTC1h 25m
2026-06-13 JRE774 - Jun 13, 20:05 UTCJun 13, 20:15 UTC10m
2026-06-11 JRE774 - Jun 11, 11:50 UTCJun 11, 12:50 UTC1h 0m
2026-06-10 JRE774 - Jun 10, 19:50 UTCJun 10, 22:15 UTC2h 25m
2026-06-10 JRE774 CLE → CWA Jun 10, 17:30 UTCJun 10, 19:05 UTC1h 35m
2026-06-10 JRE774 - Jun 10, 13:20 UTCJun 10, 16:25 UTC3h 5m
2026-06-10 JRE774 - Jun 10, 11:55 UTCJun 10, 12:25 UTC30m
2026-06-09 JRE774 - Jun 9, 17:10 UTCJun 9, 19:00 UTC1h 50m
2026-06-09 JRE774 - Jun 9, 14:35 UTCJun 9, 15:50 UTC1h 15m
2026-06-08 JRE774 - Jun 8, 19:10 UTCJun 8, 21:10 UTC2h 0m
2026-06-08 JRE774 - Jun 8, 14:50 UTCJun 8, 16:20 UTC1h 30m
2026-06-07 JRE774 - Jun 7, 21:25 UTCJun 7, 22:10 UTC45m
2026-06-07 JRE774 - Jun 7, 19:45 UTCJun 7, 20:40 UTC55m
2026-06-07 JRE774 - Jun 7, 16:40 UTCJun 7, 18:05 UTC1h 25m
2026-06-07 JRE774 - Jun 7, 13:30 UTCJun 7, 15:35 UTC2h 5m
2026-06-07 JRE774 - Jun 7, 11:45 UTCJun 7, 12:40 UTC55m
2026-06-06 JRE774 - Jun 6, 18:25 UTCJun 6, 20:45 UTC2h 20m
2026-06-06 JRE774 AUS → DFW Jun 6, 16:10 UTCJun 6, 16:55 UTC45m
2026-06-06 JRE774 - Jun 6, 14:09 UTCJun 6, 15:05 UTC55m
2026-06-06 JRE774 - Jun 6, 09:45 UTCJun 6, 12:35 UTC2h 50m
2026-06-05 JRE774 - Jun 5, 19:40 UTCJun 5, 20:35 UTC55m
2026-06-04 JRE774 - Jun 4, 19:40 UTCJun 4, 20:10 UTC30m
2026-06-04 JRE774 - Jun 4, 17:35 UTCJun 4, 18:15 UTC40m
2026-06-04 JRE774 - Jun 4, 13:40 UTCJun 4, 16:35 UTC2h 55m
2026-06-03 JRE774 - Jun 3, 20:25 UTCJun 3, 23:15 UTC2h 50m
2026-06-01 JRE774 - Jun 1, 18:25 UTCJun 1, 19:20 UTC55m
2026-06-01 JRE774 - Jun 1, 15:30 UTCJun 1, 17:40 UTC2h 10m
2026-06-01 JRE774 - Jun 1, 11:40 UTCJun 1, 13:45 UTC2h 5m
2026-05-31 JRE774 - May 31, 21:10 UTCMay 31, 22:55 UTC1h 45m
2026-05-31 JRE774 - May 31, 16:55 UTCMay 31, 18:00 UTC1h 5m

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 N774JS page for operator, model, and routing details .

Mode-S AA78BC frequently asked

What is Mode-S code AA78BC?
AA78BC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N774JS.
Where is Mode-S AA78BC registered?
Mode-S code AA78BC 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 AA78BC 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 AA78BC, octal 52474274, decimal 11,172,028.
What flights does AA78BC operate?
Mode-S AA78BC has broadcast 1 distinct callsign, including JRE774.