Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A52726

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N431DF · GRUMMAN S-2 Tracker · operated by USDA FOREST SERVICE FEPP, CALIFORNIA DEPT OF FORESTRY & FIRE PROTECTION

Hex
A52726
Octal
51223446
Decimal
10,823,462
Country
US
Tail
N431DF
Type
S2P
No current signal · last broadcast 25d ago
Flights observed
64
Distinct callsigns
1
Country
US
Last broadcast
25d ago

Last known position

Most recent position reported by Mode-S A52726.

Country allocation

The ICAO 24-bit address A52726 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
CFR78 - 64 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CFR78 - Jul 25, 23:50 UTCJul 26, 00:35 UTC45m
2026-07-25 CFR78 - Jul 25, 19:55 UTCJul 25, 20:05 UTC10m
2026-07-25 CFR78 - Jul 25, 15:45 UTCJul 25, 15:55 UTC10m
2026-07-25 CFR78 - Jul 25, 03:15 UTCJul 25, 03:30 UTC15m
2026-07-25 CFR78 - Jul 25, 01:30 UTCJul 25, 01:40 UTC10m
2026-07-24 CFR78 - Jul 24, 23:50 UTCJul 25, 00:25 UTC35m
2026-07-22 CFR78 - Jul 22, 18:05 UTCJul 22, 18:25 UTC20m
2026-07-22 CFR78 - Jul 22, 17:25 UTCJul 22, 17:35 UTC10m
2026-07-22 CFR78 - Jul 22, 16:25 UTCJul 22, 16:40 UTC15m
2026-07-22 CFR78 - Jul 22, 00:25 UTCJul 22, 01:35 UTC1h 10m
2026-07-21 CFR78 - Jul 21, 23:30 UTCJul 21, 23:40 UTC10m
2026-07-21 CFR78 - Jul 21, 18:50 UTCJul 21, 20:40 UTC1h 50m
2026-07-21 CFR78 - Jul 21, 18:10 UTCJul 21, 18:20 UTC10m
2026-07-21 CFR78 - Jul 21, 16:25 UTCJul 21, 17:40 UTC1h 15m
2026-07-21 CFR78 - Jul 21, 01:45 UTCJul 21, 01:55 UTC10m
2026-07-21 CFR78 - Jul 21, 00:10 UTCJul 21, 01:15 UTC1h 5m
2026-07-18 CFR78 - Jul 18, 20:45 UTCJul 18, 22:30 UTC1h 45m
2026-07-17 CFR78 - Jul 17, 19:30 UTCJul 17, 19:49 UTC20m
2026-07-17 CFR78 - Jul 17, 02:25 UTCJul 17, 02:45 UTC20m
2026-07-17 CFR78 - Jul 17, 00:10 UTCJul 17, 01:29 UTC1h 20m
2026-07-16 CFR78 - Jul 16, 22:00 UTCJul 16, 22:15 UTC15m
2026-07-12 CFR78 PTV → PTV Jul 12, 23:15 UTCJul 13, 00:40 UTC1h 25m
2026-07-12 CFR78 PTV → PTV Jul 12, 19:45 UTCJul 12, 20:01 UTC15m
2026-07-12 CFR78 - Jul 12, 02:20 UTCJul 12, 02:40 UTC20m
2026-07-12 CFR78 - Jul 12, 00:50 UTCJul 12, 01:10 UTC20m
2026-07-11 CFR78 - Jul 11, 18:30 UTCJul 11, 20:15 UTC1h 45m
2026-07-11 CFR78 - Jul 11, 17:30 UTCJul 11, 17:40 UTC10m
2026-07-11 CFR78 - Jul 11, 01:35 UTCJul 11, 02:30 UTC55m
2026-07-10 CFR78 MCC → MCC Jul 10, 23:05 UTCJul 10, 23:45 UTC40m
2026-07-10 CFR78 - Jul 10, 20:55 UTCJul 10, 21:10 UTC15m
2026-07-10 CFR78 - Jul 10, 18:30 UTCJul 10, 19:05 UTC35m
2026-07-09 CFR78 - Jul 9, 18:10 UTCJul 9, 19:10 UTC1h 0m
2026-07-08 CFR78 - Jul 8, 23:05 UTCJul 8, 23:15 UTC10m
2026-07-07 CFR78 - Jul 7, 22:10 UTCJul 7, 22:25 UTC15m
2026-07-07 CFR78 - Jul 7, 00:05 UTCJul 7, 00:20 UTC15m
2026-07-06 CFR78 - Jul 6, 20:25 UTCJul 6, 21:00 UTC35m
2026-07-05 CFR78 - Jul 5, 20:35 UTCJul 5, 21:30 UTC55m
2026-07-05 CFR78 - Jul 5, 00:55 UTCJul 5, 01:05 UTC10m
2026-07-03 CFR78 - Jul 3, 19:20 UTCJul 3, 19:30 UTC10m
2026-07-03 CFR78 - Jul 3, 18:25 UTCJul 3, 18:35 UTC10m
2026-07-02 CFR78 - Jul 2, 00:50 UTCJul 2, 01:25 UTC35m
2026-07-01 CFR78 - Jul 1, 19:20 UTCJul 1, 19:30 UTC10m
2026-06-30 CFR78 - Jun 30, 21:10 UTCJun 30, 22:50 UTC1h 40m
2026-06-29 CFR78 - Jun 29, 21:39 UTCJun 29, 22:44 UTC1h 5m
2026-06-27 CFR78 - Jun 27, 21:55 UTCJun 27, 22:29 UTC35m
2026-06-27 CFR78 - Jun 27, 20:24 UTCJun 27, 20:39 UTC15m
2026-06-26 CFR78 - Jun 26, 23:00 UTCJun 26, 23:49 UTC50m
2026-06-26 CFR78 - Jun 26, 20:44 UTCJun 26, 22:19 UTC1h 35m
2026-06-24 CFR78 - Jun 24, 22:19 UTCJun 24, 23:54 UTC1h 35m
2026-06-23 CFR78 - Jun 23, 23:50 UTCJun 24, 00:15 UTC25m

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 N431DF page for operator, model, and routing details .

Mode-S A52726 frequently asked

What is Mode-S code A52726?
A52726 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N431DF.
Where is Mode-S A52726 registered?
Mode-S code A52726 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 A52726 broadcasting right now?
No active broadcast right now. Last signal was 25d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A52726, octal 51223446, decimal 10,823,462.
What flights does A52726 operate?
Mode-S A52726 has broadcast 1 distinct callsign, including CFR78.