Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ACD20A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N925PH · operated by PHI AVIATION LLC

Hex
ACD20A
Octal
53151012
Decimal
11,325,962
Country
US
Tail
N925PH
Type
S92
No current signal · last broadcast 1d ago
Flights observed
92
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S ACD20A.

Country allocation

The ICAO 24-bit address ACD20A 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
PHM014 - 92 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 PHM014 - Jul 20, 15:20 UTCJul 20, 15:35 UTC15m
2026-07-20 PHM014 - Jul 20, 11:30 UTCJul 20, 11:40 UTC10m
2026-07-19 PHM014 - Jul 19, 18:10 UTCJul 19, 18:25 UTC15m
2026-07-19 PHM014 - Jul 19, 16:40 UTCJul 19, 17:00 UTC20m
2026-07-16 PHM014 - Jul 16, 17:00 UTCJul 16, 17:14 UTC15m
2026-07-16 PHM014 - Jul 16, 15:00 UTCJul 16, 15:35 UTC35m
2026-07-16 PHM014 - Jul 16, 13:54 UTCJul 16, 14:20 UTC25m
2026-07-16 PHM014 - Jul 16, 11:40 UTCJul 16, 12:20 UTC40m
2026-07-15 PHM014 - Jul 15, 14:35 UTCJul 15, 15:00 UTC25m
2026-07-15 PHM014 - Jul 15, 13:20 UTCJul 15, 13:45 UTC25m
2026-07-15 PHM014 - Jul 15, 11:25 UTCJul 15, 11:55 UTC30m
2026-07-14 PHM014 - Jul 14, 15:00 UTCJul 14, 15:25 UTC25m
2026-07-14 PHM014 - Jul 14, 11:20 UTCJul 14, 11:30 UTC10m
2026-07-13 PHM014 - Jul 13, 14:15 UTCJul 13, 14:25 UTC10m
2026-07-12 PHM014 - Jul 12, 20:50 UTCJul 12, 21:05 UTC15m
2026-07-12 PHM014 - Jul 12, 18:40 UTCJul 12, 19:01 UTC20m
2026-07-12 PHM014 - Jul 12, 14:20 UTCJul 12, 14:40 UTC20m
2026-07-12 PHM014 - Jul 12, 12:25 UTCJul 12, 12:50 UTC25m
2026-07-09 PHM014 - Jul 9, 16:35 UTCJul 9, 16:55 UTC20m
2026-07-09 PHM014 - Jul 9, 14:40 UTCJul 9, 15:05 UTC25m
2026-07-09 PHM014 - Jul 9, 13:10 UTCJul 9, 13:30 UTC20m
2026-07-09 PHM014 - Jul 9, 11:05 UTCJul 9, 11:40 UTC35m
2026-07-08 PHM014 - Jul 8, 18:40 UTCJul 8, 18:50 UTC10m
2026-07-08 PHM014 - Jul 8, 16:15 UTCJul 8, 16:40 UTC25m
2026-07-08 PHM014 - Jul 8, 14:30 UTCJul 8, 14:40 UTC10m
2026-07-08 PHM014 - Jul 8, 11:10 UTCJul 8, 11:20 UTC10m
2026-07-07 PHM014 - Jul 7, 15:10 UTCJul 7, 15:20 UTC10m
2026-07-07 PHM014 - Jul 7, 13:40 UTCJul 7, 14:10 UTC30m
2026-07-07 PHM014 - Jul 7, 11:35 UTCJul 7, 12:00 UTC25m
2026-07-06 PHM014 - Jul 6, 14:55 UTCJul 6, 15:15 UTC20m
2026-07-06 PHM014 - Jul 6, 11:25 UTCJul 6, 11:50 UTC25m
2026-07-03 PHM014 - Jul 3, 16:15 UTCJul 3, 16:30 UTC15m
2026-06-15 PHM014 - Jun 15, 15:19 UTCJun 15, 15:35 UTC15m
2026-06-15 PHM014 - Jun 15, 11:30 UTCJun 15, 11:45 UTC15m
2026-06-14 PHM014 - Jun 14, 21:35 UTCJun 14, 21:50 UTC15m
2026-06-14 PHM014 - Jun 14, 19:20 UTCJun 14, 19:40 UTC20m
2026-06-13 PHM014 - Jun 13, 13:55 UTCJun 13, 14:15 UTC20m
2026-06-13 PHM014 - Jun 13, 12:00 UTCJun 13, 12:20 UTC20m
2026-06-12 PHM014 - Jun 12, 14:40 UTCJun 12, 15:05 UTC25m
2026-06-11 PHM014 - Jun 11, 17:30 UTCJun 11, 17:40 UTC10m
2026-06-11 PHM014 - Jun 11, 16:10 UTCJun 11, 16:30 UTC20m
2026-06-11 PHM014 - Jun 11, 14:15 UTCJun 11, 14:35 UTC20m
2026-06-11 PHM014 - Jun 11, 12:45 UTCJun 11, 13:30 UTC45m
2026-06-11 PHM014 - Jun 11, 11:00 UTCJun 11, 11:30 UTC30m
2026-06-10 PHM014 - Jun 10, 19:00 UTCJun 10, 19:20 UTC20m
2026-06-10 PHM014 - Jun 10, 16:55 UTCJun 10, 17:25 UTC30m
2026-06-10 PHM014 - Jun 10, 13:20 UTCJun 10, 13:45 UTC25m
2026-06-10 PHM014 - Jun 10, 11:25 UTCJun 10, 11:55 UTC30m
2026-06-09 PHM014 - Jun 9, 14:55 UTCJun 9, 15:15 UTC20m
2026-06-09 PHM014 - Jun 9, 13:20 UTCJun 9, 13:40 UTC20m

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 N925PH page for operator, model, and routing details .

Mode-S ACD20A frequently asked

What is Mode-S code ACD20A?
ACD20A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N925PH.
Where is Mode-S ACD20A registered?
Mode-S code ACD20A 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 ACD20A broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACD20A, octal 53151012, decimal 11,325,962.
What flights does ACD20A operate?
Mode-S ACD20A has broadcast 1 distinct callsign, including PHM014.