Apparatus

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sensors Mode-S transponder

504E6C

ICAO 24-bit transponder address · allocated to Moldova

Currently assigned to ER-BAS · BOEING 747-400

Hex
504E6C
Octal
24047154
Decimal
5,262,956
Country
MD
Tail
ER-BAS
Type
B744
No current signal · last broadcast 18h ago
Flights observed
312
Distinct callsigns
20
Country
MD
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 504E6C.

Country allocation

The ICAO 24-bit address 504E6C 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
TVR4704 - 115 2026-07-13
TVR4703 - 81 2026-07-13
TVR4702 - 20 2026-07-04
TVR4701 Tavrey Airlines 19 2026-07-04
TVR4705 Tavrey Airlines 14 2026-06-14
TVR4706 Tavrey Airlines 11 2026-05-30
TVR4708 - 8 2026-07-11
TVR4707 - 8 2026-07-10
TVR4723 - 5 2026-04-26
TVR4711 Tavrey Airlines 4 2026-06-15
TVR4725 Tavrey Airlines 3 2026-04-23
TVR4722 - 3 2026-05-28
TVR4721 - 3 2026-05-28
TVR4712 Tavrey Airlines 3 2026-06-15
TVR4728 - 2 2026-07-06
TVR4717 - 2 2026-04-19
TVR4716 Tavrey Airlines 2 2026-04-19
TVR4714 Tavrey Airlines 2 2026-04-30
TVR4713 Tavrey Airlines 2 2026-06-10
TVR4709 - 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 TVR4703 - Jul 13, 15:10 UTCJul 13, 16:10 UTC1h 0m
2026-07-13 TVR4704 - Jul 13, 05:31 UTCJul 13, 11:50 UTC6h 20m
2026-07-13 TVR4704 - Jul 13, 04:20 UTCJul 13, 04:35 UTC15m
2026-07-12 TVR4703 - Jul 12, 17:55 UTCJul 13, 01:35 UTC7h 40m
2026-07-12 TVR4704 - Jul 12, 08:40 UTCJul 12, 14:35 UTC5h 55m
2026-07-12 TVR4704 - Jul 12, 07:31 UTCJul 12, 07:45 UTC15m
2026-07-12 TVR4703 - Jul 12, 03:55 UTCJul 12, 04:25 UTC30m
2026-07-11 TVR4703 - Jul 11, 20:10 UTCJul 12, 02:05 UTC5h 55m
2026-07-11 TVR4708 - Jul 11, 10:50 UTCJul 11, 17:35 UTC6h 45m
2026-07-11 TVR4708 - Jul 11, 09:40 UTCJul 11, 09:55 UTC15m
2026-07-10 TVR4707 - Jul 10, 23:55 UTCJul 11, 00:25 UTC30m
2026-07-10 TVR4707 - Jul 10, 15:50 UTCJul 10, 22:05 UTC6h 15m
2026-07-10 TVR4704 - Jul 10, 06:45 UTCJul 10, 13:05 UTC6h 20m
2026-07-10 TVR4704 - Jul 10, 05:35 UTCJul 10, 05:50 UTC15m
2026-07-10 TVR4703 - Jul 10, 02:20 UTCJul 10, 02:50 UTC30m
2026-07-09 TVR4703 - Jul 9, 19:05 UTCJul 10, 00:30 UTC5h 25m
2026-07-09 TVR4704 - Jul 9, 05:30 UTCJul 9, 11:20 UTC5h 50m
2026-07-09 TVR4704 - Jul 9, 04:20 UTCJul 9, 04:35 UTC15m
2026-07-09 TVR4703 - Jul 9, 00:00 UTCJul 9, 00:30 UTC30m
2026-07-08 TVR4703 - Jul 8, 18:10 UTCJul 8, 22:20 UTC4h 10m
2026-07-08 TVR4703 - Jul 8, 16:10 UTCJul 8, 17:10 UTC1h 0m
2026-07-08 TVR4708 - Jul 8, 05:15 UTCJul 8, 11:50 UTC6h 35m
2026-07-08 TVR4708 - Jul 8, 04:15 UTCJul 8, 04:30 UTC15m
2026-07-08 TVR4707 - Jul 8, 00:15 UTCJul 8, 00:35 UTC20m
2026-07-07 TVR4707 - Jul 7, 16:30 UTCJul 7, 22:30 UTC6h 0m
2026-07-07 TVR4704 - Jul 7, 06:25 UTCJul 7, 09:15 UTC2h 50m
2026-07-07 TVR4704 - Jul 7, 05:35 UTCJul 7, 05:50 UTC15m
2026-07-06 TVR4703 - Jul 6, 23:35 UTCJul 7, 00:05 UTC30m
2026-07-06 TVR4703 - Jul 6, 15:50 UTCJul 6, 21:50 UTC6h 0m
2026-07-06 TVR4728 - Jul 6, 06:15 UTCJul 6, 12:55 UTC6h 40m
2026-07-06 TVR4728 - Jul 6, 05:15 UTCJul 6, 05:30 UTC15m
2026-07-05 TVR4727 - Jul 5, 19:20 UTCJul 6, 02:45 UTC7h 25m
2026-07-05 TVR4704 - Jul 5, 11:05 UTCJul 5, 11:30 UTC25m
2026-07-05 TVR4704 - Jul 5, 05:25 UTCJul 5, 10:05 UTC4h 40m
2026-07-05 TVR4704 - Jul 5, 04:25 UTCJul 5, 04:40 UTC15m
2026-07-04 TVR4701 DMM → DWC Jul 4, 17:15 UTCJul 5, 00:45 UTC7h 30m
2026-07-04 TVR4702 - Jul 4, 06:00 UTCJul 4, 12:10 UTC6h 10m
2026-07-04 TVR4702 - Jul 4, 05:05 UTCJul 4, 05:20 UTC15m
2026-07-03 TVR4707 - Jul 3, 16:40 UTCJul 4, 00:35 UTC7h 55m
2026-07-03 TVR4704 - Jul 3, 05:45 UTCJul 3, 12:25 UTC6h 40m
2026-07-03 TVR4704 - Jul 3, 04:45 UTCJul 3, 05:00 UTC15m
2026-07-03 TVR4703 - Jul 3, 00:15 UTCJul 3, 00:40 UTC25m
2026-07-02 TVR4703 - Jul 2, 17:15 UTCJul 2, 23:30 UTC6h 15m
2026-07-02 TVR4704 - Jul 2, 11:15 UTCJul 2, 11:40 UTC25m
2026-07-02 TVR4704 - Jul 2, 05:35 UTCJul 2, 10:10 UTC4h 35m
2026-07-02 TVR4704 - Jul 2, 04:35 UTCJul 2, 04:50 UTC15m
2026-07-01 TVR4703 - Jul 1, 17:00 UTCJul 2, 01:00 UTC8h 0m
2026-07-01 TVR4708 - Jul 1, 07:15 UTCJul 1, 14:00 UTC6h 45m
2026-07-01 TVR4708 - Jul 1, 06:25 UTCJul 1, 06:40 UTC15m
2026-06-30 TVR4707 - Jun 30, 16:40 UTCJul 1, 00:25 UTC7h 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-BAS page for operator, model, and routing details .

Mode-S 504E6C frequently asked

What is Mode-S code 504E6C?
504E6C is an ICAO 24-bit transponder address. Allocated to Moldova. Assigned to ER-BAS.
Where is Mode-S 504E6C registered?
Mode-S code 504E6C is allocated to Moldova (MD). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 504E6C broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 504E6C, octal 24047154, decimal 5,262,956.
What flights does 504E6C operate?
Mode-S 504E6C has broadcast 20 distinct callsigns, including TVR4704, TVR4703, TVR4702, TVR4701, TVR4705.