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sensors Mode-S transponder

AD35F4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N950PH · SIKORSKY S-92 Helibus · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AD35F4
Octal
53232764
Decimal
11,351,540
Country
US
Tail
N950PH
Type
S92
No current signal · last broadcast 2h ago
Flights observed
151
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S AD35F4.

Country allocation

The ICAO 24-bit address AD35F4 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
PHM112 - 151 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 PHM112 - Jul 21, 12:20 UTCJul 21, 14:05 UTC1h 45m
2026-07-20 PHM112 - Jul 20, 20:10 UTCJul 20, 20:35 UTC25m
2026-07-20 PHM112 - Jul 20, 18:05 UTCJul 20, 18:30 UTC25m
2026-07-19 PHM112 - Jul 19, 18:55 UTCJul 19, 19:30 UTC35m
2026-07-19 PHM112 - Jul 19, 17:10 UTCJul 19, 17:25 UTC15m
2026-07-19 PHM112 - Jul 19, 14:10 UTCJul 19, 14:35 UTC25m
2026-07-18 PHM112 - Jul 18, 16:05 UTCJul 18, 16:20 UTC15m
2026-07-18 PHM112 - Jul 18, 12:10 UTCJul 18, 12:25 UTC15m
2026-07-17 PHM112 - Jul 17, 17:15 UTCJul 17, 17:30 UTC15m
2026-07-17 PHM112 - Jul 17, 15:20 UTCJul 17, 15:35 UTC15m
2026-07-17 PHM112 - Jul 17, 13:45 UTCJul 17, 14:00 UTC15m
2026-07-17 PHM112 - Jul 17, 11:39 UTCJul 17, 12:04 UTC25m
2026-07-16 PHM112 - Jul 16, 14:50 UTCJul 16, 15:14 UTC25m
2026-07-16 PHM112 - Jul 16, 12:20 UTCJul 16, 12:40 UTC20m
2026-07-15 PHM112 - Jul 15, 13:05 UTCJul 15, 13:15 UTC10m
2026-07-14 PHM112 - Jul 14, 15:45 UTCJul 14, 15:55 UTC10m
2026-07-14 PHM112 - Jul 14, 11:25 UTCJul 14, 11:40 UTC15m
2026-07-13 PHM112 - Jul 13, 19:25 UTCJul 13, 19:35 UTC10m
2026-07-13 PHM112 - Jul 13, 17:20 UTCJul 13, 17:40 UTC20m
2026-07-13 PHM112 - Jul 13, 15:40 UTCJul 13, 16:00 UTC20m
2026-07-13 PHM112 - Jul 13, 13:20 UTCJul 13, 13:45 UTC25m
2026-07-11 PHM112 - Jul 11, 12:00 UTCJul 11, 12:20 UTC20m
2026-07-10 PHM112 - Jul 10, 11:40 UTCJul 10, 11:55 UTC15m
2026-07-08 PHM112 - Jul 8, 14:10 UTCJul 8, 14:35 UTC25m
2026-07-08 PHM112 - Jul 8, 12:00 UTCJul 8, 12:25 UTC25m
2026-07-07 PHM112 - Jul 7, 13:55 UTCJul 7, 14:20 UTC25m
2026-07-07 PHM112 - Jul 7, 12:20 UTCJul 7, 12:45 UTC25m
2026-07-02 PHM112 - Jul 2, 16:20 UTCJul 2, 16:30 UTC10m
2026-07-02 PHM112 - Jul 2, 12:20 UTCJul 2, 12:35 UTC15m
2026-07-01 PHM112 - Jul 1, 17:15 UTCJul 1, 17:35 UTC20m
2026-06-30 PHM112 - Jun 30, 12:15 UTCJun 30, 12:30 UTC15m
2026-06-29 PHM112 - Jun 29, 14:14 UTCJun 29, 14:34 UTC20m
2026-06-29 PHM112 - Jun 29, 12:09 UTCJun 29, 12:34 UTC25m
2026-06-28 PHM112 - Jun 28, 13:25 UTCJun 28, 13:45 UTC20m
2026-06-26 PHM112 - Jun 26, 15:54 UTCJun 26, 16:09 UTC15m
2026-06-26 PHM112 - Jun 26, 12:00 UTCJun 26, 12:24 UTC25m
2026-06-25 PHM112 - Jun 25, 16:09 UTCJun 25, 16:24 UTC15m
2026-06-25 PHM112 - Jun 25, 12:25 UTCJun 25, 14:04 UTC1h 40m
2026-06-24 PHM112 - Jun 24, 15:14 UTCJun 24, 15:35 UTC20m
2026-06-24 PHM112 - Jun 24, 13:00 UTCJun 24, 13:30 UTC30m
2026-06-23 PHM112 - Jun 23, 13:19 UTCJun 23, 13:39 UTC20m
2026-06-22 PHM112 - Jun 22, 14:19 UTCJun 22, 14:45 UTC25m
2026-06-22 PHM112 - Jun 22, 12:15 UTCJun 22, 12:40 UTC25m
2026-06-19 PHM112 - Jun 19, 14:24 UTCJun 19, 14:44 UTC20m
2026-06-19 PHM112 - Jun 19, 12:04 UTCJun 19, 12:34 UTC30m
2026-06-18 PHM112 - Jun 18, 21:40 UTCJun 18, 21:50 UTC10m
2026-06-18 PHM112 - Jun 18, 19:35 UTCJun 18, 19:55 UTC20m
2026-06-18 PHM112 - Jun 18, 17:10 UTCJun 18, 17:30 UTC20m
2026-06-18 PHM112 - Jun 18, 15:20 UTCJun 18, 15:40 UTC20m
2026-06-17 PHM112 - Jun 17, 19:55 UTCJun 17, 20:15 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 N950PH page for operator, model, and routing details .

Mode-S AD35F4 frequently asked

What is Mode-S code AD35F4?
AD35F4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N950PH.
Where is Mode-S AD35F4 registered?
Mode-S code AD35F4 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 AD35F4 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD35F4, octal 53232764, decimal 11,351,540.
What flights does AD35F4 operate?
Mode-S AD35F4 has broadcast 1 distinct callsign, including PHM112.