Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

5004DE

ICAO 24-bit transponder address

Currently assigned to T7-SRTS · ATR-72-600

Hex
5004DE
Octal
24002336
Decimal
5,244,126
Tail
T7-SRTS
Type
AT76
No current signal · last broadcast 4d ago
Flights observed
3
Distinct callsigns
2
Country
-
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S 5004DE.

Callsign history 2 distinct

Callsign Airline Flights Last seen
T7TS - 2 2026-07-09
T7SRTS - 1 2026-06-25

Recent flights last 3

DateFlightRouteTakeoffLandingDuration
2026-07-09 T7TS - Jul 9, 18:35 UTCJul 9, 19:20 UTC45m
2026-07-09 T7TS - Jul 9, 15:10 UTCJul 9, 15:35 UTC25m
2026-06-25 T7SRTS - Jun 25, 20:14 UTCJun 25, 20:25 UTC10m

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 T7-SRTS page for operator, model, and routing details .

Mode-S 5004DE frequently asked

What is Mode-S code 5004DE?
5004DE is an ICAO 24-bit transponder address. Assigned to T7-SRTS.
Is 5004DE broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 5004DE, octal 24002336, decimal 5,244,126.
What flights does 5004DE operate?
Mode-S 5004DE has broadcast 2 distinct callsigns, including T7TS, T7SRTS.