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sensors Mode-S transponder

AD2FE4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N949PH · SIKORSKY S-92 Helibus · operated by WELLS FARGO EQUIPMENT FINANCE INC

Hex
AD2FE4
Octal
53227744
Decimal
11,349,988
Country
US
Tail
N949PH
Type
S92
No current signal · last broadcast 3h ago
Flights observed
121
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S AD2FE4.

Country allocation

The ICAO 24-bit address AD2FE4 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
PHM111 - 121 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 PHM111 - Jul 21, 11:40 UTCJul 21, 13:50 UTC2h 10m
2026-07-19 PHM111 - Jul 19, 19:30 UTCJul 19, 19:45 UTC15m
2026-07-17 PHM111 - Jul 17, 11:25 UTCJul 17, 11:35 UTC10m
2026-07-16 PHM111 - Jul 16, 17:25 UTCJul 16, 17:40 UTC15m
2026-07-16 PHM111 - Jul 16, 15:30 UTCJul 16, 15:55 UTC25m
2026-07-16 PHM111 - Jul 16, 11:54 UTCJul 16, 12:20 UTC25m
2026-07-15 PHM111 - Jul 15, 13:50 UTCJul 15, 14:15 UTC25m
2026-07-15 PHM111 - Jul 15, 11:40 UTCJul 15, 12:05 UTC25m
2026-07-14 PHM111 - Jul 14, 15:15 UTCJul 14, 15:40 UTC25m
2026-07-14 PHM111 - Jul 14, 12:25 UTCJul 14, 12:50 UTC25m
2026-07-13 PHM111 - Jul 13, 13:20 UTCJul 13, 13:45 UTC25m
2026-07-13 PHM111 - Jul 13, 11:15 UTCJul 13, 11:40 UTC25m
2026-07-09 PHM111 - Jul 9, 18:55 UTCJul 9, 19:10 UTC15m
2026-07-09 PHM111 - Jul 9, 15:30 UTCJul 9, 15:40 UTC10m
2026-07-09 PHM111 - Jul 9, 11:00 UTCJul 9, 11:20 UTC20m
2026-07-08 PHM111 - Jul 8, 17:10 UTCJul 8, 17:30 UTC20m
2026-07-08 PHM111 - Jul 8, 15:05 UTCJul 8, 15:25 UTC20m
2026-07-08 PHM111 - Jul 8, 13:10 UTCJul 8, 13:30 UTC20m
2026-07-08 PHM111 - Jul 8, 11:05 UTCJul 8, 11:25 UTC20m
2026-07-07 PHM111 - Jul 7, 14:20 UTCJul 7, 14:40 UTC20m
2026-07-07 PHM111 - Jul 7, 11:00 UTCJul 7, 11:15 UTC15m
2026-07-06 PHM111 - Jul 6, 13:20 UTCJul 6, 13:35 UTC15m
2026-07-06 PHM111 - Jul 6, 11:10 UTCJul 6, 11:35 UTC25m
2026-07-02 PHM111 - Jul 2, 15:00 UTCJul 2, 15:25 UTC25m
2026-07-01 PHM111 - Jul 1, 16:00 UTCJul 1, 16:20 UTC20m
2026-06-30 PHM111 - Jun 30, 13:20 UTCJun 30, 13:45 UTC25m
2026-06-30 PHM111 - Jun 30, 11:15 UTCJun 30, 11:40 UTC25m
2026-06-29 PHM111 - Jun 29, 13:44 UTCJun 29, 13:54 UTC10m
2026-06-29 PHM111 - Jun 29, 11:25 UTCJun 29, 11:55 UTC30m
2026-06-25 PHM111 - Jun 25, 15:20 UTCJun 25, 15:34 UTC15m
2026-06-25 PHM111 - Jun 25, 11:39 UTCJun 25, 13:59 UTC2h 20m
2026-06-24 PHM111 - Jun 24, 18:15 UTCJun 24, 18:29 UTC15m
2026-06-24 PHM111 - Jun 24, 15:39 UTCJun 24, 16:05 UTC25m
2026-06-24 PHM111 - Jun 24, 13:50 UTCJun 24, 14:15 UTC25m
2026-06-24 PHM111 - Jun 24, 11:29 UTCJun 24, 11:59 UTC30m
2026-06-23 PHM111 - Jun 23, 11:54 UTCJun 23, 12:20 UTC25m
2026-06-22 PHM111 - Jun 22, 13:54 UTCJun 22, 14:19 UTC25m
2026-06-22 PHM111 - Jun 22, 11:44 UTCJun 22, 12:15 UTC30m
2026-06-21 PHM111 - Jun 21, 13:59 UTCJun 21, 14:24 UTC25m
2026-06-21 PHM111 - Jun 21, 12:10 UTCJun 21, 12:35 UTC25m
2026-06-19 PHM111 - Jun 19, 11:45 UTCJun 19, 12:09 UTC25m
2026-06-18 PHM111 - Jun 18, 19:05 UTCJun 18, 19:25 UTC20m
2026-06-18 PHM111 - Jun 18, 17:05 UTCJun 18, 17:25 UTC20m
2026-06-18 PHM111 - Jun 18, 15:50 UTCJun 18, 16:00 UTC10m
2026-06-18 PHM111 - Jun 18, 13:00 UTCJun 18, 13:20 UTC20m
2026-06-17 PHM111 - Jun 17, 19:10 UTCJun 17, 19:25 UTC15m
2026-06-17 PHM111 - Jun 17, 16:35 UTCJun 17, 17:00 UTC25m
2026-06-17 PHM111 - Jun 17, 11:45 UTCJun 17, 12:00 UTC15m
2026-06-16 PHM111 - Jun 16, 16:39 UTCJun 16, 17:00 UTC20m
2026-06-16 PHM111 - Jun 16, 14:55 UTCJun 16, 15:20 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 N949PH page for operator, model, and routing details .

Mode-S AD2FE4 frequently asked

What is Mode-S code AD2FE4?
AD2FE4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N949PH.
Where is Mode-S AD2FE4 registered?
Mode-S code AD2FE4 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 AD2FE4 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD2FE4, octal 53227744, decimal 11,349,988.
What flights does AD2FE4 operate?
Mode-S AD2FE4 has broadcast 1 distinct callsign, including PHM111.