Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A1EC74

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N223DC · DIAMOND DA-20 · operated by GUMPS LLC

Hex
A1EC74
Octal
50366164
Decimal
10,611,828
Country
US
Tail
N223DC
Type
DV20
Broadcasting now · callsign N223DC · 2,700 ft
Flights observed
180
Distinct callsigns
1
Country
US
Last broadcast
59m ago

Current position

A1EC74 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A1EC74 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
N223DC - 180 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N223DC BFP → BFP Jul 14, 13:50 UTCJul 14, 14:50 UTC1h 0m
2026-07-14 N223DC BFP → BFP Jul 14, 12:30 UTCJul 14, 13:10 UTC40m
2026-07-13 N223DC BFP → BFP Jul 13, 19:45 UTCJul 13, 20:25 UTC40m
2026-07-13 N223DC - Jul 13, 18:00 UTCJul 13, 18:50 UTC50m
2026-07-13 N223DC - Jul 13, 16:10 UTCJul 13, 17:10 UTC1h 0m
2026-07-13 N223DC - Jul 13, 13:30 UTCJul 13, 14:20 UTC50m
2026-07-13 N223DC - Jul 13, 12:20 UTCJul 13, 12:50 UTC30m
2026-07-12 N223DC - Jul 12, 23:20 UTCJul 13, 00:05 UTC45m
2026-07-12 N223DC - Jul 12, 21:25 UTCJul 12, 22:45 UTC1h 20m
2026-07-12 N223DC - Jul 12, 19:50 UTCJul 12, 20:55 UTC1h 5m
2026-07-12 N223DC - Jul 12, 17:55 UTCJul 12, 18:50 UTC55m
2026-07-12 N223DC - Jul 12, 16:20 UTCJul 12, 17:05 UTC45m
2026-07-08 N223DC - Jul 8, 21:35 UTCJul 8, 23:35 UTC2h 0m
2026-07-08 N223DC - Jul 8, 19:35 UTCJul 8, 20:35 UTC1h 0m
2026-07-07 N223DC - Jul 7, 21:20 UTCJul 7, 21:50 UTC30m
2026-07-07 N223DC - Jul 7, 19:05 UTCJul 7, 20:10 UTC1h 5m
2026-07-07 N223DC BFP → BFP Jul 7, 15:25 UTCJul 7, 16:45 UTC1h 20m
2026-06-19 N223DC BFP → BFP Jun 19, 19:39 UTCJun 19, 20:44 UTC1h 5m
2026-06-19 N223DC - Jun 19, 13:59 UTCJun 19, 15:04 UTC1h 5m
2026-06-19 N223DC BFP → BFP Jun 19, 12:29 UTCJun 19, 13:29 UTC1h 0m
2026-06-17 N223DC - Jun 17, 22:55 UTCJun 17, 23:45 UTC50m
2026-06-17 N223DC - Jun 17, 19:55 UTCJun 17, 22:00 UTC2h 5m
2026-06-17 N223DC - Jun 17, 17:55 UTCJun 17, 18:50 UTC55m
2026-06-17 N223DC BFP → BFP Jun 17, 15:55 UTCJun 17, 16:55 UTC1h 0m
2026-06-17 N223DC BFP → BFP Jun 17, 14:20 UTCJun 17, 15:10 UTC50m
2026-06-17 N223DC - Jun 17, 13:35 UTCJun 17, 13:50 UTC15m
2026-06-16 N223DC - Jun 16, 21:30 UTCJun 16, 22:15 UTC45m
2026-06-16 N223DC - Jun 16, 20:05 UTCJun 16, 20:45 UTC40m
2026-06-16 N223DC - Jun 16, 17:55 UTCJun 16, 18:50 UTC55m
2026-06-16 N223DC BFP → BFP Jun 16, 15:55 UTCJun 16, 16:50 UTC55m
2026-06-16 N223DC - Jun 16, 13:55 UTCJun 16, 14:55 UTC1h 0m
2026-06-16 N223DC BFP → BFP Jun 16, 12:20 UTCJun 16, 13:15 UTC55m
2026-06-15 N223DC - Jun 15, 21:20 UTCJun 15, 22:05 UTC45m
2026-06-15 N223DC BFP → BFP Jun 15, 19:30 UTCJun 15, 20:30 UTC1h 0m
2026-06-15 N223DC - Jun 15, 17:50 UTCJun 15, 18:50 UTC1h 0m
2026-06-15 N223DC - Jun 15, 15:59 UTCJun 15, 16:45 UTC45m
2026-06-13 N223DC - Jun 13, 22:30 UTCJun 13, 23:05 UTC35m
2026-06-13 N223DC BFP → BFP Jun 13, 19:40 UTCJun 13, 20:40 UTC1h 0m
2026-06-13 N223DC BFP → BFP Jun 13, 17:45 UTCJun 13, 18:50 UTC1h 5m
2026-06-13 N223DC - Jun 13, 15:55 UTCJun 13, 17:10 UTC1h 15m
2026-06-12 N223DC - Jun 12, 23:05 UTCJun 13, 00:00 UTC55m
2026-06-12 N223DC - Jun 12, 21:25 UTCJun 12, 22:20 UTC55m
2026-06-12 N223DC BFP → BFP Jun 12, 19:25 UTCJun 12, 20:40 UTC1h 15m
2026-06-12 N223DC BFP → BFP Jun 12, 15:40 UTCJun 12, 16:00 UTC20m
2026-06-12 N223DC BFP → BFP Jun 12, 14:15 UTCJun 12, 15:05 UTC50m
2026-06-12 N223DC BFP → BFP Jun 12, 12:10 UTCJun 12, 13:20 UTC1h 10m
2026-06-11 N223DC BFP → BFP Jun 11, 23:40 UTCJun 12, 00:35 UTC56m
2026-06-11 N223DC BFP → BFP Jun 11, 15:55 UTCJun 11, 16:15 UTC20m
2026-06-10 N223DC - Jun 10, 21:30 UTCJun 10, 22:35 UTC1h 5m
2026-06-10 N223DC - Jun 10, 19:40 UTCJun 10, 20:35 UTC55m

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 N223DC page for operator, model, and routing details .

Mode-S A1EC74 frequently asked

What is Mode-S code A1EC74?
A1EC74 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N223DC.
Where is Mode-S A1EC74 registered?
Mode-S code A1EC74 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 A1EC74 broadcasting right now?
Yes. Mode-S A1EC74 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1EC74, octal 50366164, decimal 10,611,828.
What flights does A1EC74 operate?
Mode-S A1EC74 has broadcast 1 distinct callsign, including N223DC.