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sensors Mode-S transponder

504E86

ICAO 24-bit transponder address · allocated to Moldova

Currently assigned to ER-00004 · AIRBUS A-320

Hex
504E86
Octal
24047206
Decimal
5,262,982
Country
MD
Tail
ER-00004
Type
A320
Broadcasting now · callsign FIA6815 · 35,000 ft
Flights observed
349
Distinct callsigns
20
Country
MD
Last broadcast
Jul 26, 07:40 UTC

Current position

504E86 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 504E86 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
FIA5581 - 30 2026-07-19
FIA6344 - 24 2026-07-15
FIA6343 - 18 2026-07-15
FIA5582 - 17 2026-07-15
FIA5510 Four Island Air 14 2026-07-25
FIA5509 Four Island Air 13 2026-07-24
FIA5326 Four Island Air 11 2026-07-26
FIA6816 - 10 2026-07-15
FIA6815 - 10 2026-07-13
FIA5738 Four Island Air 9 2026-05-02
FIA5737 Four Island Air 9 2026-05-02
FIA5638 - 9 2026-07-06
FIA5637 - 9 2026-07-19
FIA5325 Four Island Air 9 2026-07-24
FIA5812 - 7 2026-07-20
FIA5811 Four Island Air 7 2026-07-20
FIA5420 Four Island Air 6 2026-07-17
FIA5419 Four Island Air 6 2026-07-17
FIA5231 - 6 2026-06-29
FIA6412 - 5 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 FIA5326 IST → RMO Jul 26, 06:50 UTCJul 26, 07:40 UTC50m
2026-07-25 FIA5340 GYD → RMO Jul 25, 18:15 UTCJul 26, 05:15 UTC11h 0m
2026-07-25 FIA5510 TLV → RMO Jul 25, 00:25 UTCJul 25, 15:00 UTC14h 35m
2026-07-24 FIA5509 RMO → TLV Jul 24, 20:25 UTCJul 24, 22:45 UTC2h 20m
2026-07-24 FIA5512 BCN → RMO Jul 24, 15:25 UTCJul 24, 18:00 UTC2h 35m
2026-07-24 FIA5511 RMO → BCN Jul 24, 10:15 UTCJul 24, 13:15 UTC3h 0m
2026-07-24 FIA5326 IST → RMO Jul 24, 06:55 UTCJul 24, 07:40 UTC45m
2026-07-24 FIA5325 RMO → IST Jul 24, 05:00 UTCJul 24, 05:15 UTC15m
2026-07-23 FIA5510 TLV → RMO Jul 23, 19:10 UTCJul 23, 21:20 UTC2h 10m
2026-07-23 FIA5509 RMO → TLV Jul 23, 15:55 UTCJul 23, 17:35 UTC1h 40m
2026-07-23 FIA5814 ALC → RMO Jul 23, 10:30 UTCJul 23, 13:20 UTC2h 50m
2026-07-23 FIA5813 RMO → ALC Jul 23, 05:20 UTCJul 23, 08:55 UTC3h 35m
2026-07-22 FIA5908 - Jul 22, 14:45 UTCJul 22, 15:40 UTC55m
2026-07-22 FIA5325 RMO → IST Jul 22, 04:50 UTCJul 22, 05:20 UTC30m
2026-07-21 FIA5340 - Jul 21, 22:35 UTCJul 22, 00:00 UTC1h 25m
2026-07-21 FIA5339 - Jul 21, 18:20 UTCJul 21, 20:25 UTC2h 5m
2026-07-21 FIA5836 - Jul 21, 14:10 UTCJul 21, 16:10 UTC2h 0m
2026-07-21 FIA5835 RMO → BRU Jul 21, 07:30 UTCJul 21, 12:25 UTC4h 55m
2026-07-21 FIA5713 - Jul 21, 04:35 UTCJul 21, 06:10 UTC1h 35m
2026-07-20 FIA5812 - Jul 20, 22:35 UTCJul 21, 02:05 UTC3h 29m
2026-07-20 FIA5811 RMO → LIS Jul 20, 06:55 UTCJul 20, 21:05 UTC14h 10m
2026-07-19 FIA5637 - Jul 19, 22:20 UTCJul 20, 05:10 UTC6h 50m
2026-07-19 FIA5581 - Jul 19, 20:45 UTCJul 19, 21:05 UTC20m
2026-07-19 FIA5581 - Jul 19, 19:05 UTCJul 19, 19:45 UTC40m
2026-07-19 FIA5326 IST → RMO Jul 19, 07:00 UTCJul 19, 07:45 UTC45m
2026-07-19 FIA5325 RMO → IST Jul 19, 04:00 UTCJul 19, 05:05 UTC1h 5m
2026-07-18 FIA5340 - Jul 18, 22:50 UTCJul 19, 00:15 UTC1h 25m
2026-07-18 FIA5714 - Jul 18, 13:15 UTCJul 18, 20:25 UTC7h 10m
2026-07-18 FIA5713 - Jul 18, 10:10 UTCJul 18, 11:45 UTC1h 35m
2026-07-18 FIA5326 - Jul 18, 06:45 UTCJul 18, 07:30 UTC45m
2026-07-18 FIA5325 - Jul 18, 04:15 UTCJul 18, 05:15 UTC1h 0m
2026-07-17 FIA5510 TLV → RMO Jul 17, 19:00 UTCJul 17, 21:15 UTC2h 15m
2026-07-17 FIA5509 RMO → TLV Jul 17, 15:29 UTCJul 17, 17:15 UTC1h 45m
2026-07-17 FIA5420 PMI → RMO Jul 17, 11:00 UTCJul 17, 13:45 UTC2h 45m
2026-07-17 FIA5419 RMO → PMI Jul 17, 06:05 UTCJul 17, 09:10 UTC3h 5m
2026-07-15 FIA5582 - Jul 15, 22:15 UTCJul 15, 23:20 UTC1h 5m
2026-07-15 FIA5581 - Jul 15, 20:30 UTCJul 15, 20:50 UTC20m
2026-07-15 FIA6344 - Jul 15, 09:05 UTCJul 15, 11:25 UTC2h 20m
2026-07-15 FIA6343 - Jul 15, 04:35 UTCJul 15, 07:05 UTC2h 30m
2026-07-15 FIA6816 - Jul 15, 00:15 UTCJul 15, 01:40 UTC1h 25m
2026-07-14 FIA5510 TLV → AYT Jul 14, 17:50 UTCJul 14, 23:10 UTC5h 19m
2026-07-14 FIA5509 - Jul 14, 14:25 UTCJul 14, 15:55 UTC1h 30m
2026-07-14 FIA5714 - Jul 14, 06:25 UTCJul 14, 07:45 UTC1h 20m
2026-07-14 FIA6816 AYT → PRG Jul 14, 00:00 UTCJul 14, 04:40 UTC4h 40m
2026-07-13 FIA6815 - Jul 13, 21:15 UTCJul 13, 22:50 UTC1h 35m
2026-07-13 FIA5512 - Jul 13, 15:05 UTCJul 13, 17:50 UTC2h 45m
2026-07-13 FIA5511 - Jul 13, 10:30 UTCJul 13, 13:40 UTC3h 10m
2026-07-13 FIA5326 - Jul 13, 06:55 UTCJul 13, 07:30 UTC35m
2026-07-13 FIA5325 - Jul 13, 04:10 UTCJul 13, 05:20 UTC1h 10m
2026-07-12 FIA5582 - Jul 12, 22:05 UTCJul 12, 23:15 UTC1h 10m

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-00004 page for operator, model, and routing details .

Mode-S 504E86 frequently asked

What is Mode-S code 504E86?
504E86 is an ICAO 24-bit transponder address. Allocated to Moldova. Assigned to ER-00004.
Where is Mode-S 504E86 registered?
Mode-S code 504E86 is allocated to Moldova (MD). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 504E86 broadcasting right now?
Yes. Mode-S 504E86 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 504E86, octal 24047206, decimal 5,262,982.
What flights does 504E86 operate?
Mode-S 504E86 has broadcast 20 distinct callsigns, including FIA5581, FIA6344, FIA6343, FIA5582, FIA5510.