sensors Mode-S transponder

504E72

ICAO 24-bit transponder address · allocated to Moldova

Currently assigned to ER-00008 · AIRBUS A-320

Hex
504E72
Octal
24047162
Decimal
5,262,962
Country
MD
Tail
ER-00008
Type
A320
No current signal · last broadcast 15h ago
Flights observed
12
Distinct callsigns
8
Country
MD
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 504E72.

Country allocation

The ICAO 24-bit address 504E72 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 8 distinct

Callsign Airline Flights Last seen
FIA5712 - 2 2026-04-13
FIA5616 - 2 2026-04-14
FIA5325 - 2 2026-04-13
FIA5295 - 2 2026-04-13
FIA5711 Four Island Air 1 2026-04-12
FIA5326 - 1 2026-04-13
FIA5296 - 1 2026-04-13
FIA5233 - 1 2026-04-14

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-14 FIA5233 - Apr 14, 09:55 UTCApr 14, 11:05 UTC1h 10m
2026-04-14 FIA5616 - Apr 14, 07:10 UTCApr 14, 07:50 UTC40m
2026-04-14 FIA5616 - Apr 14, 06:15 UTCApr 14, 07:10 UTC55m
2026-04-13 FIA5296 - Apr 13, 13:55 UTCApr 13, 15:50 UTC1h 55m
2026-04-13 FIA5295 - Apr 13, 11:55 UTCApr 13, 12:15 UTC20m
2026-04-13 FIA5295 - Apr 13, 10:10 UTCApr 13, 12:15 UTC2h 5m
2026-04-13 FIA5326 - Apr 13, 06:40 UTCApr 13, 07:30 UTC50m
2026-04-13 FIA5325 - Apr 13, 04:20 UTCApr 13, 04:40 UTC20m
2026-04-13 FIA5325 - Apr 13, 04:05 UTCApr 13, 04:15 UTC10m
2026-04-13 FIA5712 - Apr 13, 00:20 UTCApr 13, 01:30 UTC1h 10m
2026-04-12 FIA5712 - Apr 12, 23:55 UTCApr 13, 01:30 UTC1h 35m
2026-04-12 FIA5711 RMO → DUB Apr 12, 17:30 UTCApr 12, 20:15 UTC2h 45m

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-00008 page for operator, model, and routing details .

Mode-S 504E72 frequently asked

What is Mode-S code 504E72?
504E72 is an ICAO 24-bit transponder address. Allocated to Moldova. Assigned to ER-00008.
Where is Mode-S 504E72 registered?
Mode-S code 504E72 is allocated to Moldova (MD). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 504E72 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 504E72, octal 24047162, decimal 5,262,962.
What flights does 504E72 operate?
Mode-S 504E72 has broadcast 8 distinct callsigns, including FIA5712, FIA5616, FIA5325, FIA5295, FIA5711.