sensors Mode-S transponder

504E7E

ICAO 24-bit transponder address · allocated to Moldova

Currently assigned to ER-00010 · AIRBUS A-320

Hex
504E7E
Octal
24047176
Decimal
5,262,974
Country
MD
Tail
ER-00010
Type
A320
No current signal · last broadcast 12h ago
Flights observed
13
Distinct callsigns
6
Country
MD
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 504E7E.

Country allocation

The ICAO 24-bit address 504E7E falls within the block assigned to Moldova (MD) by ICAO Annex 10, Volume III. Every aircraft registered in Moldova 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 6 distinct

Callsign Airline Flights Last seen
FIA6742 - 4 2026-04-14
FIA6741 - 3 2026-04-14
FIA5713 - 2 2026-04-13
FIA5582 - 2 2026-04-13
FIA5714 - 1 2026-04-13
FIA5612 - 1 2026-04-12

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 FIA6742 - Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-14 FIA6742 - Apr 14, 08:45 UTCApr 14, 09:05 UTC20m
2026-04-14 FIA6741 - Apr 14, 05:15 UTCApr 14, 06:35 UTC1h 20m
2026-04-13 FIA5714 - Apr 13, 17:00 UTCApr 13, 18:20 UTC1h 20m
2026-04-13 FIA5713 - Apr 13, 15:50 UTCApr 13, 16:15 UTC25m
2026-04-13 FIA5713 - Apr 13, 14:35 UTCApr 13, 16:15 UTC1h 40m
2026-04-13 FIA6742 - Apr 13, 08:20 UTCApr 13, 10:45 UTC2h 25m
2026-04-13 FIA6742 - Apr 13, 07:55 UTCApr 13, 10:45 UTC2h 50m
2026-04-13 FIA6741 - Apr 13, 04:20 UTCApr 13, 08:15 UTC3h 55m
2026-04-13 FIA6741 - Apr 13, 04:00 UTCApr 13, 04:15 UTC15m
2026-04-13 FIA5582 - Apr 13, 00:20 UTCApr 13, 02:15 UTC1h 55m
2026-04-12 FIA5582 - Apr 12, 23:55 UTCApr 13, 02:15 UTC2h 20m
2026-04-12 FIA5612 - Apr 12, 17:20 UTCApr 12, 18:50 UTC1h 30m

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 ER-00010 page for operator, model, and routing details .

Mode-S 504E7E frequently asked

What is Mode-S code 504E7E?
504E7E is an ICAO 24-bit transponder address. Allocated to Moldova. Assigned to ER-00010.
Where is Mode-S 504E7E registered?
Mode-S code 504E7E is allocated to Moldova (MD). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 504E7E broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 504E7E, octal 24047176, decimal 5,262,974.
What flights does 504E7E operate?
Mode-S 504E7E has broadcast 6 distinct callsigns, including FIA6742, FIA6741, FIA5713, FIA5582, FIA5714.