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sensors Mode-S transponder

504E89

ICAO 24-bit transponder address · allocated to Moldova

Currently assigned to ER-00005 · AIRBUS A-320

Hex
504E89
Octal
24047211
Decimal
5,262,985
Country
MD
Tail
ER-00005
Type
A320
Broadcasting now · callsign FIA5612 · 37,000 ft
Flights observed
197
Distinct callsigns
20
Country
MD
Last broadcast
2h ago

Current position

504E89 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 504E89 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
FIA6343 - 14 2026-07-10
FIA6816 - 13 2026-07-09
FIA6344 - 13 2026-07-17
FIA5581 - 12 2026-07-16
FIA6815 - 11 2026-07-09
FIA5582 - 8 2026-07-16
FIA5510 - 7 2026-07-12
FIA5509 - 7 2026-07-10
FIA6412 - 5 2026-07-13
FIA5512 Four Island Air 5 2026-06-28
FIA5511 Four Island Air 5 2026-06-28
FIA5420 - 5 2026-07-14
FIA5419 - 5 2026-07-14
FIA6411 - 4 2026-06-24
FIA6311 Four Island Air 4 2026-05-22
FIA5812 - 4 2026-07-17
FIA5811 - 4 2026-07-17
FIA6308 - 3 2026-06-21
FIA5921 - 3 2026-07-14
FIA5714 - 3 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 FIA5611 - Jul 18, 03:30 UTCJul 18, 05:15 UTC1h 45m
2026-07-17 FIA5812 - Jul 17, 22:25 UTCJul 18, 02:05 UTC3h 40m
2026-07-17 FIA5811 - Jul 17, 16:34 UTCJul 17, 21:00 UTC4h 25m
2026-07-17 FIA6344 - Jul 17, 05:04 UTCJul 17, 11:45 UTC6h 40m
2026-07-16 FIA5582 - Jul 16, 22:45 UTCJul 17, 01:00 UTC2h 15m
2026-07-16 FIA5581 - Jul 16, 21:05 UTCJul 16, 21:25 UTC20m
2026-07-16 FIA5402 - Jul 16, 12:05 UTCJul 16, 15:25 UTC3h 20m
2026-07-16 FIA5401 - Jul 16, 06:15 UTCJul 16, 09:55 UTC3h 40m
2026-07-15 FIA5612 - Jul 15, 06:50 UTCJul 15, 08:20 UTC1h 30m
2026-07-14 FIA5611 BUS → BER Jul 14, 21:15 UTCJul 15, 05:05 UTC7h 49m
2026-07-14 FIA5921 - Jul 14, 19:50 UTCJul 14, 19:55 UTC5m
2026-07-14 FIA5921 - Jul 14, 18:10 UTCJul 14, 19:00 UTC50m
2026-07-14 FIA5420 - Jul 14, 12:20 UTCJul 14, 15:00 UTC2h 40m
2026-07-14 FIA5419 - Jul 14, 07:30 UTCJul 14, 10:25 UTC2h 55m
2026-07-13 FIA5582 - Jul 13, 22:10 UTCJul 13, 23:15 UTC1h 5m
2026-07-13 FIA5581 - Jul 13, 19:05 UTCJul 13, 20:35 UTC1h 30m
2026-07-13 FIA5232 - Jul 13, 15:20 UTCJul 13, 17:00 UTC1h 40m
2026-07-13 FIA5231 - Jul 13, 11:30 UTCJul 13, 13:20 UTC1h 50m
2026-07-13 FIA6412 - Jul 13, 05:31 UTCJul 13, 07:05 UTC1h 35m
2026-07-12 FIA5510 - Jul 12, 17:45 UTCJul 13, 03:55 UTC10h 10m
2026-07-12 FIA6352 - Jul 12, 07:31 UTCJul 12, 16:20 UTC8h 50m
2026-07-11 FIA6351 - Jul 11, 22:20 UTCJul 12, 06:25 UTC8h 5m
2026-07-11 FIA5581 - Jul 11, 18:45 UTCJul 11, 20:50 UTC2h 5m
2026-07-11 FIA5814 - Jul 11, 08:15 UTCJul 11, 11:10 UTC2h 55m
2026-07-11 FIA5813 - Jul 11, 03:25 UTCJul 11, 07:00 UTC3h 35m
2026-07-10 FIA5510 - Jul 10, 19:00 UTCJul 10, 21:10 UTC2h 11m
2026-07-10 FIA5509 - Jul 10, 15:10 UTCJul 10, 17:25 UTC2h 15m
2026-07-10 FIA6344 - Jul 10, 09:00 UTCJul 10, 11:10 UTC2h 10m
2026-07-10 FIA6343 - Jul 10, 05:20 UTCJul 10, 07:10 UTC1h 50m
2026-07-09 FIA6816 - Jul 9, 23:50 UTCJul 10, 01:10 UTC1h 20m
2026-07-09 FIA6815 - Jul 9, 21:10 UTCJul 9, 22:40 UTC1h 30m
2026-07-09 FIA5714 - Jul 9, 14:15 UTCJul 9, 15:35 UTC1h 20m
2026-07-09 FIE533A - Jul 9, 03:25 UTCJul 9, 04:20 UTC55m
2026-07-08 FIE534 - Jul 8, 22:55 UTCJul 8, 23:40 UTC45m
2026-07-08 FIA5904 - Jul 8, 16:35 UTCJul 8, 18:35 UTC2h 0m
2026-07-08 FIA5903 - Jul 8, 13:15 UTCJul 8, 15:15 UTC2h 0m
2026-07-07 FIA5510 - Jul 7, 16:50 UTCJul 8, 10:45 UTC17h 55m
2026-07-07 FIA5509 - Jul 7, 12:55 UTCJul 7, 15:10 UTC2h 15m
2026-07-07 FIA5714 - Jul 7, 07:15 UTCJul 7, 08:35 UTC1h 20m
2026-07-06 FIA5232 - Jul 6, 15:05 UTCJul 7, 06:05 UTC15h 0m
2026-07-06 FIA5231 - Jul 6, 11:40 UTCJul 6, 13:35 UTC1h 55m
2026-07-06 FIA5326 - Jul 6, 06:50 UTCJul 6, 07:35 UTC45m
2026-07-06 FIA5325 - Jul 6, 04:15 UTCJul 6, 05:15 UTC1h 0m
2026-07-06 FIA6816 - Jul 6, 00:00 UTCJul 6, 01:25 UTC1h 25m
2026-07-05 FIA6815 - Jul 5, 22:25 UTCJul 5, 22:40 UTC15m
2026-07-05 FIA5510 - Jul 5, 17:15 UTCJul 5, 19:25 UTC2h 10m
2026-07-05 FIA5509 - Jul 5, 08:55 UTCJul 5, 15:30 UTC6h 35m
2026-07-04 FIA6351 - Jul 4, 22:15 UTCJul 5, 06:05 UTC7h 50m
2026-07-04 FIA5581 - Jul 4, 18:40 UTCJul 4, 20:45 UTC2h 5m
2026-07-04 FIA5216 - Jul 4, 13:10 UTCJul 4, 14:50 UTC1h 40m

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-00005 page for operator, model, and routing details .

Mode-S 504E89 frequently asked

What is Mode-S code 504E89?
504E89 is an ICAO 24-bit transponder address. Allocated to Moldova. Assigned to ER-00005.
Where is Mode-S 504E89 registered?
Mode-S code 504E89 is allocated to Moldova (MD). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 504E89 broadcasting right now?
Yes. Mode-S 504E89 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 504E89, octal 24047211, decimal 5,262,985.
What flights does 504E89 operate?
Mode-S 504E89 has broadcast 20 distinct callsigns, including FIA6343, FIA6816, FIA6344, FIA5581, FIA6815.