Apparatus

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sensors Mode-S transponder

AB7AF5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N839N · EMBRAER EMB-505 Phenom 300 · operated by NICHOLAS SERVICES LLC

Hex
AB7AF5
Octal
52675365
Decimal
11,238,133
Country
US
Tail
N839N
Type
E55P
No current signal · last broadcast Jul 21, 20:00 UTC
Flights observed
200
Distinct callsigns
1
Country
US
Last broadcast
Jul 21, 20:00 UTC

Last known position

Most recent position reported by Mode-S AB7AF5.

Country allocation

The ICAO 24-bit address AB7AF5 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
JTZ839 - 200 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 JTZ839 - Jul 21, 18:40 UTCJul 21, 20:00 UTC1h 20m
2026-07-19 JTZ839 - Jul 19, 14:35 UTCJul 19, 15:20 UTC45m
2026-07-18 JTZ839 - Jul 18, 20:30 UTCJul 18, 21:05 UTC35m
2026-07-18 JTZ839 - Jul 18, 16:20 UTCJul 18, 19:10 UTC2h 50m
2026-07-18 JTZ839 - Jul 18, 14:45 UTCJul 18, 15:00 UTC15m
2026-07-08 JTZ839 - Jul 8, 21:40 UTCJul 8, 21:55 UTC15m
2026-07-02 JTZ839 - Jul 2, 21:10 UTCJul 2, 22:05 UTC55m
2026-07-02 JTZ839 IAD → TTN Jul 2, 19:15 UTCJul 2, 19:50 UTC35m
2026-07-02 JTZ839 PIE → IAD Jul 2, 14:55 UTCJul 2, 16:45 UTC1h 50m
2026-07-02 JTZ839 - Jul 2, 00:10 UTCJul 2, 00:55 UTC45m
2026-07-01 JTZ839 - Jul 1, 22:55 UTCJul 1, 23:35 UTC40m
2026-07-01 JTZ839 - Jul 1, 20:55 UTCJul 1, 21:20 UTC25m
2026-07-01 JTZ839 - Jul 1, 19:15 UTCJul 1, 20:15 UTC1h 0m
2026-07-01 JTZ839 - Jul 1, 14:35 UTCJul 1, 15:25 UTC50m
2026-06-30 JTZ839 RDU → BNA Jun 30, 22:00 UTCJun 30, 23:05 UTC1h 5m
2026-06-30 JTZ839 - Jun 30, 20:10 UTCJun 30, 20:55 UTC45m
2026-06-30 JTZ839 - Jun 30, 18:40 UTCJun 30, 19:15 UTC35m
2026-06-30 JTZ839 - Jun 30, 14:35 UTCJun 30, 17:40 UTC3h 5m
2026-06-29 JTZ839 - Jun 29, 21:54 UTCJun 29, 22:49 UTC55m
2026-06-27 JTZ839 - Jun 27, 20:09 UTCJun 27, 20:49 UTC40m
2026-06-27 JTZ839 - Jun 27, 16:30 UTCJun 27, 17:55 UTC1h 25m
2026-06-27 JTZ839 - Jun 27, 14:54 UTCJun 27, 15:19 UTC25m
2026-06-26 JTZ839 - Jun 26, 18:20 UTCJun 26, 19:20 UTC1h 0m
2026-06-26 JTZ839 - Jun 26, 13:34 UTCJun 26, 14:39 UTC1h 5m
2026-06-25 JTZ839 - Jun 25, 20:05 UTCJun 25, 20:14 UTC10m
2026-06-25 JTZ839 EFD → BTR Jun 25, 02:59 UTCJun 25, 03:44 UTC45m
2026-06-25 JTZ839 - Jun 25, 00:19 UTCJun 25, 01:54 UTC1h 35m
2026-06-24 JTZ839 - Jun 24, 22:00 UTCJun 24, 23:29 UTC1h 30m
2026-06-24 JTZ839 - Jun 24, 03:15 UTCJun 24, 03:44 UTC30m
2026-06-23 JTZ839 - Jun 23, 19:19 UTCJun 23, 19:59 UTC40m
2026-06-23 JTZ839 - Jun 23, 14:10 UTCJun 23, 14:59 UTC50m
2026-06-22 JTZ839 - Jun 22, 20:30 UTCJun 22, 20:55 UTC25m
2026-06-22 JTZ839 - Jun 22, 15:35 UTCJun 22, 19:19 UTC3h 45m
2026-06-22 JTZ839 - Jun 22, 12:34 UTCJun 22, 13:44 UTC1h 10m
2026-06-21 JTZ839 - Jun 21, 16:49 UTCJun 21, 17:24 UTC35m
2026-06-21 JTZ839 - Jun 21, 15:15 UTCJun 21, 15:49 UTC35m
2026-06-21 JTZ839 - Jun 21, 13:44 UTCJun 21, 14:30 UTC45m
2026-06-20 JTZ839 - Jun 20, 19:29 UTCJun 20, 21:44 UTC2h 15m
2026-06-20 JTZ839 IAD → PDK Jun 20, 17:29 UTCJun 20, 18:54 UTC1h 25m
2026-06-20 JTZ839 - Jun 20, 15:44 UTCJun 20, 16:39 UTC55m
2026-06-20 JTZ839 - Jun 20, 13:49 UTCJun 20, 14:54 UTC1h 5m
2026-06-19 JTZ839 - Jun 19, 18:59 UTCJun 19, 20:29 UTC1h 30m
2026-06-19 JTZ839 - Jun 19, 15:24 UTCJun 19, 17:14 UTC1h 50m
2026-06-19 JTZ839 MSY → SHV Jun 19, 13:59 UTCJun 19, 14:49 UTC50m
2026-06-19 JTZ839 - Jun 19, 00:55 UTCJun 19, 02:14 UTC1h 20m
2026-06-18 JTZ839 - Jun 18, 22:35 UTCJun 19, 00:14 UTC1h 39m
2026-06-18 JTZ839 - Jun 18, 18:45 UTCJun 18, 19:10 UTC25m
2026-06-18 JTZ839 - Jun 18, 15:20 UTCJun 18, 17:21 UTC2h 1m
2026-06-17 JTZ839 - Jun 17, 23:35 UTCJun 18, 00:10 UTC35m
2026-06-17 JTZ839 - Jun 17, 20:55 UTCJun 17, 22:40 UTC1h 45m

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 N839N page for operator, model, and routing details .

Mode-S AB7AF5 frequently asked

What is Mode-S code AB7AF5?
AB7AF5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N839N.
Where is Mode-S AB7AF5 registered?
Mode-S code AB7AF5 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 AB7AF5 broadcasting right now?
No active broadcast right now. Last signal was Jul 21, 20:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB7AF5, octal 52675365, decimal 11,238,133.
What flights does AB7AF5 operate?
Mode-S AB7AF5 has broadcast 1 distinct callsign, including JTZ839.