Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A642DB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N502RF · operated by RVA FLYERS FLEET LLC

Hex
A642DB
Octal
51441333
Decimal
10,896,091
Country
US
Tail
N502RF
Type
DA40
No current signal · last broadcast 11h ago
Flights observed
126
Distinct callsigns
1
Country
US
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S A642DB.

Country allocation

The ICAO 24-bit address A642DB 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
N502RF - 125 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-04 N502RF - Jul 4, 13:05 UTCJul 4, 14:30 UTC1h 25m
2026-07-03 N502RF - Jul 3, 13:25 UTCJul 3, 14:50 UTC1h 25m
2026-07-02 N502RF - Jul 2, 20:00 UTCJul 2, 20:50 UTC50m
2026-07-02 N502RF - Jul 2, 15:40 UTCJul 2, 16:30 UTC50m
2026-07-02 N502RF - Jul 2, 14:40 UTCJul 2, 15:05 UTC25m
2026-07-01 N502RF - Jul 1, 22:20 UTCJul 1, 23:50 UTC1h 30m
2026-07-01 N502RF - Jul 1, 11:30 UTCJul 1, 12:10 UTC40m
2026-06-30 N502RF - Jun 30, 20:25 UTCJun 30, 20:40 UTC15m
2026-06-30 N502RF - Jun 30, 18:35 UTCJun 30, 18:55 UTC20m
2026-06-30 N502RF - Jun 30, 17:25 UTCJun 30, 17:45 UTC20m
2026-06-30 N502RF - Jun 30, 00:30 UTCJun 30, 01:09 UTC40m
2026-06-29 N502RF - Jun 29, 22:44 UTCJun 29, 23:29 UTC45m
2026-06-26 N502RF - Jun 26, 18:54 UTCJun 26, 19:35 UTC40m
2026-06-26 N502RF - Jun 26, 17:54 UTCJun 26, 18:24 UTC30m
2026-06-26 N502RF - Jun 26, 00:10 UTCJun 26, 00:30 UTC20m
2026-06-25 N502RF - Jun 25, 22:24 UTCJun 25, 23:24 UTC1h 0m
2026-06-24 N502RF - Jun 24, 23:24 UTCJun 25, 00:59 UTC1h 35m
2026-06-24 N502RF - Jun 24, 21:34 UTCJun 24, 22:19 UTC45m
2026-06-24 N502RF - Jun 24, 20:30 UTCJun 24, 20:49 UTC20m
2026-06-24 N502RF - Jun 24, 17:10 UTCJun 24, 18:05 UTC55m
2026-06-24 N502RF - Jun 24, 13:10 UTCJun 24, 14:24 UTC1h 15m
2026-06-21 N502RF - Jun 21, 11:44 UTCJun 21, 12:24 UTC40m
2026-06-20 N502RF - Jun 20, 18:59 UTCJun 20, 19:09 UTC10m
2026-06-20 N502RF - Jun 20, 15:24 UTCJun 20, 15:39 UTC15m
2026-06-20 N502RF - Jun 20, 12:50 UTCJun 20, 13:59 UTC1h 10m
2026-06-19 N502RF - Jun 19, 19:19 UTCJun 19, 19:39 UTC20m
2026-06-18 N502RF - Jun 18, 11:35 UTCJun 18, 12:30 UTC55m
2026-06-17 N502RF - Jun 17, 23:20 UTCJun 18, 00:05 UTC45m
2026-06-17 N502RF - Jun 17, 21:50 UTCJun 17, 22:45 UTC55m
2026-06-17 N502RF - Jun 17, 16:35 UTCJun 17, 17:10 UTC35m
2026-06-17 N502RF - Jun 17, 15:20 UTCJun 17, 16:05 UTC45m
2026-06-15 N502RF - Jun 15, 23:45 UTCJun 16, 00:45 UTC1h 0m
2026-06-05 N502RF - Jun 5, 19:40 UTCJun 5, 20:00 UTC20m
2026-06-05 N502RF - Jun 5, 18:10 UTCJun 5, 18:20 UTC10m
2026-06-05 N502RF - Jun 5, 12:45 UTCJun 5, 13:45 UTC1h 0m
2026-06-04 N502RF - Jun 4, 11:45 UTCJun 4, 12:20 UTC35m
2026-06-03 N502RF - Jun 3, 22:20 UTCJun 3, 23:30 UTC1h 10m
2026-06-03 N502RF - Jun 3, 18:10 UTCJun 3, 18:55 UTC45m
2026-06-03 N502RF - Jun 3, 13:00 UTCJun 3, 14:50 UTC1h 50m
2026-06-02 N502RF - Jun 2, 20:10 UTCJun 2, 21:15 UTC1h 5m
2026-06-02 N502RF - Jun 2, 15:10 UTCJun 2, 16:25 UTC1h 15m
2026-05-31 N502RF - May 31, 18:10 UTCMay 31, 18:20 UTC10m
2026-05-31 N502RF - May 31, 16:55 UTCMay 31, 17:35 UTC40m
2026-05-30 N502RF - May 30, 11:35 UTCMay 30, 12:40 UTC1h 5m
2026-05-29 N502RF - May 29, 20:25 UTCMay 29, 21:40 UTC1h 15m
2026-05-29 N502RF - May 29, 17:55 UTCMay 29, 19:05 UTC1h 10m
2026-05-29 N502RF - May 29, 13:40 UTCMay 29, 14:05 UTC25m
2026-05-28 N502RF - May 28, 19:55 UTCMay 28, 21:15 UTC1h 20m
2026-05-28 N502RF - May 28, 17:40 UTCMay 28, 18:50 UTC1h 10m
2026-05-28 N502RF - May 28, 14:40 UTCMay 28, 15:30 UTC50m

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 N502RF page for operator, model, and routing details .

Mode-S A642DB frequently asked

What is Mode-S code A642DB?
A642DB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N502RF.
Where is Mode-S A642DB registered?
Mode-S code A642DB 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 A642DB broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A642DB, octal 51441333, decimal 10,896,091.
What flights does A642DB operate?
Mode-S A642DB has broadcast 1 distinct callsign, including N502RF.