sensors Mode-S transponder

ACD124

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N925EC · operated by PITT COUNTY MEMORIAL HOSPITAL INC

Hex
ACD124
Octal
53150444
Decimal
11,325,732
Country
US
Tail
N925EC
No current signal · last broadcast 19d ago
Flights observed
48
Distinct callsigns
1
Country
US
Last broadcast
19d ago

Last known position

Most recent position reported by Mode-S ACD124.

Country allocation

The ICAO 24-bit address ACD124 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
N925EC - 48 2026-05-14

Recent flights last 48

DateFlightRouteTakeoffLandingDuration
2026-05-14 N925EC - May 14, 16:45 UTCMay 14, 17:05 UTC20m
2026-05-14 N925EC - May 14, 06:45 UTCMay 14, 07:00 UTC15m
2026-05-14 N925EC - May 14, 03:30 UTCMay 14, 03:40 UTC10m
2026-05-14 N925EC - May 14, 02:00 UTCMay 14, 02:35 UTC35m
2026-05-14 N925EC - May 14, 00:05 UTCMay 14, 00:15 UTC10m
2026-05-13 N925EC - May 13, 21:05 UTCMay 13, 21:20 UTC15m
2026-05-13 N925EC - May 13, 17:00 UTCMay 13, 17:10 UTC10m
2026-05-13 N925EC - May 13, 07:30 UTCMay 13, 07:45 UTC15m
2026-05-13 N925EC - May 13, 06:15 UTCMay 13, 06:25 UTC10m
2026-05-13 N925EC - May 13, 05:10 UTCMay 13, 05:35 UTC25m
2026-05-13 N925EC - May 13, 04:00 UTCMay 13, 04:15 UTC15m
2026-05-13 N925EC - May 13, 00:20 UTCMay 13, 00:30 UTC10m
2026-05-12 N925EC - May 12, 15:30 UTCMay 12, 15:45 UTC15m
2026-05-12 N925EC - May 12, 05:55 UTCMay 12, 06:05 UTC10m
2026-05-12 N925EC - May 12, 05:05 UTCMay 12, 05:15 UTC10m
2026-05-11 N925EC - May 11, 14:45 UTCMay 11, 15:20 UTC35m
2026-05-11 N925EC - May 11, 13:05 UTCMay 11, 13:55 UTC50m
2026-05-11 N925EC - May 11, 06:20 UTCMay 11, 06:40 UTC20m
2026-05-11 N925EC - May 11, 04:00 UTCMay 11, 04:10 UTC10m
2026-05-10 N925EC RWI → RWI May 10, 18:55 UTCMay 10, 19:30 UTC35m
2026-05-10 N925EC - May 10, 14:34 UTCMay 10, 14:45 UTC10m
2026-05-10 N925EC - May 10, 12:05 UTCMay 10, 12:34 UTC30m
2026-05-10 N925EC - May 10, 07:50 UTCMay 10, 08:05 UTC15m
2026-05-10 N925EC - May 10, 03:50 UTCMay 10, 04:04 UTC15m
2026-05-09 N925EC - May 9, 09:05 UTCMay 9, 09:15 UTC10m
2026-05-09 N925EC - May 9, 07:45 UTCMay 9, 07:55 UTC10m
2026-05-09 N925EC - May 9, 06:35 UTCMay 9, 06:45 UTC10m
2026-05-09 N925EC - May 9, 02:55 UTCMay 9, 03:05 UTC10m
2026-05-09 N925EC - May 9, 01:15 UTCMay 9, 01:30 UTC15m
2026-05-08 N925EC - May 8, 21:50 UTCMay 8, 22:00 UTC10m
2026-05-08 N925EC - May 8, 20:10 UTCMay 8, 20:25 UTC15m
2026-05-08 N925EC - May 8, 17:40 UTCMay 8, 17:50 UTC10m
2026-05-08 N925EC - May 8, 14:20 UTCMay 8, 14:35 UTC15m
2026-05-08 N925EC - May 8, 12:04 UTCMay 8, 12:49 UTC45m
2026-05-08 N925EC - May 8, 03:39 UTCMay 8, 03:55 UTC15m
2026-05-08 N925EC - May 8, 00:09 UTCMay 8, 00:20 UTC10m
2026-05-07 N925EC - May 7, 08:25 UTCMay 7, 08:45 UTC20m
2026-05-07 N925EC - May 7, 07:30 UTCMay 7, 07:45 UTC15m
2026-05-06 N925EC - May 6, 15:00 UTCMay 6, 15:10 UTC10m
2026-05-06 N925EC - May 6, 04:20 UTCMay 6, 04:30 UTC10m
2026-05-06 N925EC - May 6, 00:31 UTCMay 6, 00:40 UTC10m
2026-05-05 N925EC - May 5, 16:25 UTCMay 5, 18:25 UTC2h 0m
2026-05-05 N925EC - May 5, 14:10 UTCMay 5, 14:20 UTC10m
2026-05-05 N925EC - May 5, 12:05 UTCMay 5, 12:20 UTC15m
2026-05-05 N925EC - May 5, 07:45 UTCMay 5, 08:10 UTC25m
2026-05-05 N925EC - May 5, 06:25 UTCMay 5, 07:05 UTC40m
2026-05-05 N925EC - May 5, 00:00 UTCMay 5, 00:10 UTC10m
2026-05-04 N925EC RWI → RWI May 4, 18:35 UTCMay 4, 19:40 UTC1h 5m

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 N925EC page for operator, model, and routing details .

Mode-S ACD124 frequently asked

What is Mode-S code ACD124?
ACD124 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N925EC.
Where is Mode-S ACD124 registered?
Mode-S code ACD124 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 ACD124 broadcasting right now?
No active broadcast right now. Last signal was 19d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACD124, octal 53150444, decimal 11,325,732.
What flights does ACD124 operate?
Mode-S ACD124 has broadcast 1 distinct callsign, including N925EC.