Apparatus

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sensors Mode-S transponder

504E70

ICAO 24-bit transponder address · allocated to Moldova

Currently assigned to ER-BYK · BOEING 747-400

Hex
504E70
Octal
24047160
Decimal
5,262,960
Country
MD
Tail
ER-BYK
Type
B744
No current signal · last broadcast 1d ago
Flights observed
281
Distinct callsigns
20
Country
MD
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 504E70.

Country allocation

The ICAO 24-bit address 504E70 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 - 47 2026-06-28
TVR4702 - 33 2026-07-12
TVR4703 - 32 2026-07-05
TVR4701 - 22 2026-07-11
TVR4726 - 19 2026-07-07
TVR4725 Tavrey Airlines 19 2026-07-07
TVR4721 Tavrey Airlines 17 2026-06-19
TVR4722 - 15 2026-06-19
TVR4717 Tavrey Airlines 11 2026-06-06
TVR4712 - 10 2026-07-10
TVR4718 Tavrey Airlines 9 2026-06-07
TVR4705 Tavrey Airlines 7 2026-06-13
TVR4719 Tavrey Airlines 6 2026-05-27
TVR4714 Tavrey Airlines 6 2026-05-31
TVR4716 Tavrey Airlines 5 2026-04-28
TVR4708 - 5 2026-07-04
TVR4715 Tavrey Airlines 4 2026-04-21
TVR4711 - 4 2026-07-09
TVR4713 Tavrey Airlines 3 2026-05-31
TVR4728 - 2 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 TVR4702 - Jul 12, 09:40 UTCJul 12, 15:30 UTC5h 50m
2026-07-12 TVR4702 - Jul 12, 08:30 UTCJul 12, 08:45 UTC15m
2026-07-11 TVR4701 - Jul 11, 08:05 UTCJul 11, 16:40 UTC8h 35m
2026-07-10 TVR4712 - Jul 10, 10:50 UTCJul 10, 17:15 UTC6h 25m
2026-07-10 TVR4712 - Jul 10, 09:40 UTCJul 10, 09:55 UTC15m
2026-07-09 TVR4711 - Jul 9, 21:15 UTCJul 10, 05:00 UTC7h 45m
2026-07-09 TVR4711 - Jul 9, 08:05 UTCJul 10, 05:00 UTC20h 55m
2026-07-08 TVR4702 - Jul 8, 22:05 UTCJul 9, 21:20 UTC23h 15m
2026-07-08 TVR4702 - Jul 8, 17:30 UTCJul 9, 09:25 UTC15h 55m
2026-07-08 TVR4712 HKG → HKG Jul 8, 05:25 UTCJul 8, 17:25 UTC12h 0m
2026-07-08 TVR4712 HKG → HKG Jul 8, 04:20 UTCJul 8, 04:35 UTC15m
2026-07-08 TVR4711 RUH → RUH Jul 8, 00:30 UTCJul 8, 00:55 UTC25m
2026-07-07 TVR4711 RUH → RUH Jul 7, 16:50 UTCJul 7, 22:50 UTC6h 0m
2026-07-07 TVR4726 - Jul 7, 06:45 UTCJul 7, 13:35 UTC6h 50m
2026-07-07 TVR4726 - Jul 7, 05:50 UTCJul 7, 06:05 UTC15m
2026-07-07 TVR4725 JNB → HKG Jul 7, 01:45 UTCJul 7, 02:20 UTC35m
2026-07-06 TVR4725 JNB → HKG Jul 6, 17:50 UTCJul 7, 00:00 UTC6h 10m
2026-07-06 TVR4726 - Jul 6, 08:15 UTCJul 6, 15:10 UTC6h 55m
2026-07-06 TVR4726 - Jul 6, 07:25 UTCJul 6, 07:40 UTC15m
2026-07-06 TVR4725 JNB → HKG Jul 6, 04:20 UTCJul 6, 05:05 UTC45m
2026-07-05 TVR4725 JNB → HKG Jul 5, 21:20 UTCJul 6, 02:35 UTC5h 15m
2026-07-05 TVR4702 - Jul 5, 07:35 UTCJul 5, 13:55 UTC6h 20m
2026-07-05 TVR4702 - Jul 5, 06:45 UTCJul 5, 07:00 UTC15m
2026-07-05 TVR4703 - Jul 5, 03:25 UTCJul 5, 03:55 UTC30m
2026-07-04 TVR4703 - Jul 4, 19:55 UTCJul 5, 01:40 UTC5h 45m
2026-07-04 TVR4708 - Jul 4, 09:30 UTCJul 4, 16:35 UTC7h 5m
2026-07-04 TVR4708 - Jul 4, 08:25 UTCJul 4, 08:40 UTC15m
2026-07-04 TVR4701 DMM → DWC Jul 4, 04:15 UTCJul 4, 04:40 UTC25m
2026-07-03 TVR4701 DMM → DWC Jul 3, 20:35 UTCJul 4, 03:30 UTC6h 55m
2026-07-03 TVR4728 - Jul 3, 11:25 UTCJul 3, 18:10 UTC6h 45m
2026-07-03 TVR4728 - Jul 3, 10:30 UTCJul 3, 10:40 UTC10m
2026-07-02 TVR4727 - Jul 2, 16:55 UTCJul 3, 01:00 UTC8h 5m
2026-07-02 TVR4726 - Jul 2, 05:20 UTCJul 2, 12:05 UTC6h 45m
2026-07-02 TVR4726 - Jul 2, 04:25 UTCJul 2, 04:40 UTC15m
2026-07-02 TVR4725 JNB → HKG Jul 2, 01:55 UTCJul 2, 02:15 UTC20m
2026-07-01 TVR4725 JNB → HKG Jul 1, 18:20 UTCJul 2, 01:10 UTC6h 50m
2026-07-01 TVR4726 - Jul 1, 08:40 UTCJul 1, 15:25 UTC6h 45m
2026-07-01 TVR4726 - Jul 1, 07:50 UTCJul 1, 08:00 UTC10m
2026-07-01 TVR4725 JNB → HKG Jul 1, 04:00 UTCJul 1, 04:25 UTC25m
2026-06-30 TVR4725 JNB → HKG Jun 30, 20:25 UTCJul 1, 03:15 UTC6h 50m
2026-06-30 TVR4726 - Jun 30, 05:35 UTCJun 30, 12:20 UTC6h 45m
2026-06-30 TVR4726 - Jun 30, 04:35 UTCJun 30, 04:50 UTC15m
2026-06-29 TVR4725 JNB → HKG Jun 29, 16:44 UTCJun 30, 00:55 UTC8h 10m
2026-06-29 TVR4726 - Jun 29, 07:25 UTCJun 29, 14:14 UTC6h 50m
2026-06-29 TVR4726 - Jun 29, 06:34 UTCJun 29, 06:50 UTC15m
2026-06-29 TVR4725 JNB → HKG Jun 29, 02:59 UTCJun 29, 03:29 UTC30m
2026-06-28 TVR4725 JNB → HKG Jun 28, 19:49 UTCJun 29, 02:09 UTC6h 20m
2026-06-28 TVR4704 - Jun 28, 08:59 UTCJun 28, 15:24 UTC6h 25m
2026-06-28 TVR4704 - Jun 28, 08:14 UTCJun 28, 08:29 UTC15m
2026-06-28 TVR4703 - Jun 28, 00:35 UTCJun 28, 01:04 UTC30m

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

Mode-S 504E70 frequently asked

What is Mode-S code 504E70?
504E70 is an ICAO 24-bit transponder address. Allocated to Moldova. Assigned to ER-BYK.
Where is Mode-S 504E70 registered?
Mode-S code 504E70 is allocated to Moldova (MD). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 504E70 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 504E70, octal 24047160, decimal 5,262,960.
What flights does 504E70 operate?
Mode-S 504E70 has broadcast 20 distinct callsigns, including TVR4704, TVR4702, TVR4703, TVR4701, TVR4726.