Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 2d ago
Flights observed
138
Distinct callsigns
16
Country
MD
Last broadcast
2d 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 16 distinct

Callsign Airline Flights Last seen
TVR4704 Tavrey Airlines 27 2026-05-22
TVR4702 Tavrey Airlines 21 2026-05-17
TVR4703 Tavrey Airlines 14 2026-05-21
TVR4701 Tavrey Airlines 13 2026-05-17
TVR4717 Tavrey Airlines 9 2026-05-23
TVR4721 - 8 2026-05-17
TVR4718 Tavrey Airlines 7 2026-05-25
TVR4719 Tavrey Airlines 6 2026-05-27
TVR4712 Tavrey Airlines 6 2026-04-18
TVR4722 - 5 2026-05-19
TVR4716 Tavrey Airlines 5 2026-04-28
TVR4714 - 5 2026-04-21
TVR4715 Tavrey Airlines 4 2026-04-21
TVR4705 Tavrey Airlines 4 2026-04-20
TVR4713 Tavrey Airlines 2 2026-04-18
TVR4707 Tavrey Airlines 2 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-27 TVR4719 TLV → HKG May 27, 06:29 UTCMay 27, 13:45 UTC7h 15m
2026-05-25 TVR4718 DWC → TLV May 25, 19:35 UTCMay 26, 13:04 UTC17h 30m
2026-05-25 TVR4718 DWC → TLV May 25, 17:05 UTCMay 26, 13:04 UTC19h 59m
2026-05-24 TVR4718 DWC → TLV May 24, 18:25 UTCMay 24, 21:45 UTC3h 20m
2026-05-23 TVR4717 SYD → HKG May 23, 13:10 UTCMay 23, 16:55 UTC3h 45m
2026-05-22 TVR4704 HKG → DWC May 22, 05:45 UTCMay 22, 09:40 UTC3h 55m
2026-05-22 TVR4704 HKG → DWC May 22, 03:45 UTCMay 22, 04:00 UTC15m
2026-05-21 TVR4703 DWC → HKG May 21, 18:20 UTCMay 22, 00:10 UTC5h 50m
2026-05-21 TVR4703 DWC → HKG May 21, 17:05 UTCMay 21, 17:20 UTC15m
2026-05-21 TVR4704 HKG → DWC May 21, 05:40 UTCMay 21, 09:35 UTC3h 55m
2026-05-21 TVR4704 HKG → DWC May 21, 03:35 UTCMay 21, 03:50 UTC15m
2026-05-20 TVR4703 DWC → HKG May 20, 08:40 UTCMay 21, 00:50 UTC16h 10m
2026-05-20 TVR4704 HKG → DWC May 20, 06:40 UTCMay 20, 06:55 UTC15m
2026-05-19 TVR4703 DWC → HKG May 19, 22:40 UTCMay 20, 04:35 UTC5h 55m
2026-05-19 TVR4722 - May 19, 06:50 UTCMay 19, 14:05 UTC7h 15m
2026-05-17 TVR4721 - May 17, 18:05 UTCMay 18, 12:20 UTC18h 15m
2026-05-17 TVR4721 - May 17, 17:30 UTCMay 18, 12:20 UTC18h 50m
2026-05-17 TVR4721 - May 17, 14:25 UTCMay 18, 12:20 UTC21h 55m
2026-05-17 TVR4702 HKG → HKG May 17, 12:20 UTCMay 17, 12:35 UTC15m
2026-05-17 TVR4701 DMM → DWC May 17, 03:40 UTCMay 17, 09:30 UTC5h 50m
2026-05-14 TVR4722 - May 14, 05:15 UTCMay 14, 21:25 UTC16h 10m
2026-05-13 TVR4722 - May 13, 19:55 UTCMay 14, 05:15 UTC9h 20m
2026-05-13 TVR4721 - May 13, 05:35 UTCMay 13, 20:00 UTC14h 25m
2026-05-12 TVR4721 - May 12, 19:55 UTCMay 13, 05:40 UTC9h 45m
2026-05-11 TVR4721 - May 11, 03:50 UTCMay 11, 19:45 UTC15h 55m
2026-05-10 TVR4722 - May 10, 08:50 UTCMay 10, 22:20 UTC13h 30m
2026-05-09 TVR4722 - May 9, 14:40 UTCMay 10, 08:50 UTC18h 10m
2026-05-09 TVR4721 - May 9, 05:40 UTCMay 9, 10:45 UTC5h 5m
2026-05-09 TVR4721 SHJ → SHJ May 9, 03:35 UTCMay 9, 04:00 UTC25m
2026-05-08 TVR4702 HKG → HKG May 8, 03:24 UTCMay 8, 05:20 UTC1h 55m
2026-05-08 TVR4702 HKG → HKG May 8, 01:24 UTCMay 8, 01:35 UTC10m
2026-05-07 TVR4701 DMM → DWC May 7, 18:30 UTCMay 7, 22:25 UTC3h 55m
2026-05-06 TVR4702 HKG → HKG May 6, 03:20 UTCMay 6, 05:20 UTC2h 0m
2026-05-06 TVR4702 HKG → HKG May 6, 01:20 UTCMay 6, 01:35 UTC15m
2026-05-05 TVR4701 DMM → DWC May 5, 04:35 UTCMay 5, 22:10 UTC17h 35m
2026-05-05 TVR4702 HKG → HKG May 5, 02:30 UTCMay 5, 02:40 UTC10m
2026-05-04 TVR4701 DMM → DWC May 4, 17:35 UTCMay 5, 00:10 UTC6h 36m
2026-05-04 TVR4702 HKG → HKG May 4, 09:00 UTCMay 4, 09:20 UTC20m
2026-05-04 TVR4702 HKG → HKG May 4, 03:35 UTCMay 4, 07:10 UTC3h 35m
2026-05-04 TVR4702 HKG → HKG May 4, 01:35 UTCMay 4, 01:44 UTC10m
2026-05-03 TVR4701 DMM → DWC May 3, 15:25 UTCMay 3, 22:15 UTC6h 50m
2026-05-03 TVR4702 HKG → HKG May 3, 03:50 UTCMay 3, 09:40 UTC5h 50m
2026-05-03 TVR4702 HKG → HKG May 3, 01:50 UTCMay 3, 02:05 UTC15m
2026-05-02 TVR4701 DMM → DWC May 2, 15:10 UTCMay 2, 22:15 UTC7h 5m
2026-05-02 TVR4702 HKG → HKG May 2, 11:20 UTCMay 2, 11:40 UTC20m
2026-05-02 TVR4702 HKG → HKG May 2, 06:00 UTCMay 2, 09:40 UTC3h 40m
2026-05-02 TVR4702 HKG → HKG May 2, 03:55 UTCMay 2, 04:05 UTC10m
2026-05-02 TVR4701 DMM → DWC May 2, 01:25 UTCMay 2, 01:30 UTC5m
2026-05-01 TVR4701 DMM → DWC May 1, 18:00 UTCMay 1, 23:10 UTC5h 10m
2026-05-01 TVR4702 HKG → HKG May 1, 09:40 UTCMay 1, 15:25 UTC5h 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-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 2d 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 16 distinct callsigns, including TVR4704, TVR4702, TVR4703, TVR4701, TVR4717.