sensors Mode-S transponder

504E8E

ICAO 24-bit transponder address · allocated to Moldova

Hex
504E8E
Octal
24047216
Decimal
5,262,990
Country
MD
No current signal · last broadcast 5d ago
Flights observed
141
Distinct callsigns
20
Country
MD
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S 504E8E.

Country allocation

The ICAO 24-bit address 504E8E 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 20 distinct

Callsign Airline Flights Last seen
FIE872 - 15 2026-07-26
FIE932 - 8 2026-07-16
FIE931 - 8 2026-07-16
FIE871 - 8 2026-07-26
FIE533 - 8 2026-07-25
FIE711 - 7 2026-07-09
FIE232 - 7 2026-07-22
FIE231 - 7 2026-07-22
FIE248 - 6 2026-07-10
FIE247 - 6 2026-07-10
FIE545 - 5 2026-07-26
FIE777 - 4 2026-07-08
FIE546 - 4 2026-07-26
FIE878 - 3 2026-07-25
FIE778 - 3 2026-07-08
FIE7491 - 3 2026-06-30
FIE7462 - 3 2026-07-25
FIE712 - 3 2026-07-09
FIE588 - 3 2026-07-20
FIE587 - 3 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FIE546 - Jul 26, 19:55 UTCJul 26, 21:30 UTC1h 35m
2026-07-26 FIE545 - Jul 26, 13:25 UTCJul 26, 17:50 UTC4h 25m
2026-07-26 FIE872 - Jul 26, 09:20 UTCJul 26, 09:50 UTC30m
2026-07-26 FIE871 - Jul 26, 06:20 UTCJul 26, 08:00 UTC1h 41m
2026-07-25 FIE533 - Jul 25, 19:50 UTCJul 26, 00:00 UTC4h 10m
2026-07-25 FIE878 - Jul 25, 16:50 UTCJul 25, 17:20 UTC30m
2026-07-25 FIE7462 - Jul 25, 08:45 UTCJul 25, 15:35 UTC6h 50m
2026-07-25 FIE7461 - Jul 25, 04:25 UTCJul 25, 06:50 UTC2h 25m
2026-07-24 FIE533 - Jul 24, 21:05 UTCJul 24, 21:55 UTC50m
2026-07-24 FIE878 - Jul 24, 16:40 UTCJul 24, 17:15 UTC35m
2026-07-24 FIE874 - Jul 24, 09:00 UTCJul 24, 14:55 UTC5h 55m
2026-07-24 FIE873 - Jul 24, 06:25 UTCJul 24, 07:30 UTC1h 5m
2026-07-23 FIE533 - Jul 23, 20:20 UTCJul 24, 00:30 UTC4h 10m
2026-07-23 FIE878 - Jul 23, 16:25 UTCJul 23, 17:00 UTC35m
2026-07-23 FIE877 - Jul 23, 13:10 UTCJul 23, 14:50 UTC1h 40m
2026-07-23 FIE872 - Jul 23, 08:20 UTCJul 23, 08:50 UTC30m
2026-07-23 FIE871 - Jul 23, 05:20 UTCJul 23, 07:00 UTC1h 40m
2026-07-22 FIE232 - Jul 22, 19:55 UTCJul 22, 23:25 UTC3h 30m
2026-07-22 FIE231 - Jul 22, 13:05 UTCJul 22, 17:55 UTC4h 50m
2026-07-21 FIE533 - Jul 21, 20:40 UTCJul 21, 21:35 UTC55m
2026-07-21 FIE186 - Jul 21, 17:00 UTCJul 21, 18:45 UTC1h 45m
2026-07-21 FIE185 LCA → SKG Jul 21, 08:30 UTCJul 21, 15:10 UTC6h 40m
2026-07-21 FIE871 - Jul 21, 06:30 UTCJul 21, 07:05 UTC35m
2026-07-21 FIE534 - Jul 21, 01:10 UTCJul 21, 02:50 UTC1h 40m
2026-07-20 FIE533 - Jul 20, 21:40 UTCJul 20, 22:25 UTC45m
2026-07-20 FIE588 - Jul 20, 19:05 UTCJul 20, 19:30 UTC25m
2026-07-20 FIE587 - Jul 20, 17:35 UTCJul 20, 18:05 UTC30m
2026-07-20 FIE7492 - Jul 20, 05:25 UTCJul 20, 15:05 UTC9h 40m
2026-07-20 FIE533 - Jul 20, 01:30 UTCJul 20, 02:15 UTC45m
2026-07-19 FIE546 - Jul 19, 18:10 UTCJul 19, 21:55 UTC3h 45m
2026-07-19 FIE545 - Jul 19, 12:05 UTCJul 19, 16:30 UTC4h 25m
2026-07-19 FIE872 - Jul 19, 08:15 UTCJul 19, 08:50 UTC35m
2026-07-18 FIE533 LCA → LCA Jul 18, 16:20 UTCJul 19, 07:05 UTC14h 45m
2026-07-18 FIE877 - Jul 18, 14:35 UTCJul 18, 15:15 UTC40m
2026-07-18 FIE588 - Jul 18, 09:10 UTCJul 18, 09:35 UTC25m
2026-07-18 FIE587 - Jul 18, 07:15 UTCJul 18, 07:50 UTC35m
2026-07-17 FIE588 - Jul 17, 16:55 UTCJul 17, 17:25 UTC30m
2026-07-17 FIE587 - Jul 17, 15:15 UTCJul 17, 15:55 UTC40m
2026-07-17 FIE872 - Jul 17, 08:10 UTCJul 17, 08:45 UTC35m
2026-07-16 FIE932 - Jul 16, 20:55 UTCJul 17, 06:54 UTC10h 0m
2026-07-16 FIE931 - Jul 16, 15:10 UTCJul 16, 19:14 UTC4h 5m
2026-07-16 FIE872 - Jul 16, 08:40 UTCJul 16, 09:55 UTC1h 15m
2026-07-15 FIE232 - Jul 15, 19:30 UTCJul 16, 07:25 UTC11h 55m
2026-07-15 FIE231 - Jul 15, 08:35 UTCJul 15, 17:50 UTC9h 15m
2026-07-14 FIE932 - Jul 14, 19:15 UTCJul 15, 06:30 UTC11h 14m
2026-07-14 FIE931 - Jul 14, 13:40 UTCJul 14, 17:45 UTC4h 5m
2026-07-14 FIE872 - Jul 14, 08:35 UTCJul 14, 09:15 UTC40m
2026-07-13 FIE232 - Jul 13, 19:10 UTCJul 14, 07:25 UTC12h 15m
2026-07-13 FIE231 - Jul 13, 12:55 UTCJul 13, 17:35 UTC4h 40m
2026-07-13 FIE788 - Jul 13, 01:05 UTCJul 13, 09:20 UTC8h 15m

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.

Mode-S 504E8E frequently asked

What is Mode-S code 504E8E?
504E8E is an ICAO 24-bit transponder address. Allocated to Moldova.
Where is Mode-S 504E8E registered?
Mode-S code 504E8E is allocated to Moldova (MD). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 504E8E broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 504E8E, octal 24047216, decimal 5,262,990.
What flights does 504E8E operate?
Mode-S 504E8E has broadcast 20 distinct callsigns, including FIE872, FIE932, FIE931, FIE871, FIE533.