Apparatus

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sensors Mode-S transponder

4BA947

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JJG · BOEING 777-300ER

Hex
4BA947
Octal
22724507
Decimal
4,958,535
Country
TR
Tail
TC-JJG
Type
B77W
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
252
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S 4BA947.

Country allocation

The ICAO 24-bit address 4BA947 falls within the block assigned to Turkey (TR) by ICAO Annex 10, Volume III. Every aircraft registered in Turkey 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
THY73 Turkish Airlines 11 2026-07-23
THY88 Turkish Airlines 9 2026-07-08
THY77J - 8 2026-07-02
THY26 - 8 2026-07-15
THY99D Turkish Airlines 7 2026-05-29
THY72 Turkish Airlines 7 2026-07-22
THY71 - 7 2026-07-19
THY8LV - 6 2026-07-11
THY6 - 6 2026-07-10
THY5 - 6 2026-07-09
THY2 - 6 2026-06-28
THY1GJ - 6 2026-07-10
THY1 Turkish Airlines 6 2026-06-27
THY89 Turkish Airlines 5 2026-07-08
THY70 - 5 2026-07-18
THY27 - 5 2026-07-16
THY85 - 4 2026-07-13
THY84 - 4 2026-07-12
THY55 Turkish Airlines 4 2026-06-30
THY51Q Turkish Airlines 4 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY11 IST → JFK Jul 26, 17:05 UTCJul 26, 21:45 UTC4h 40m
2026-07-26 THY2AY IAH → IST Jul 26, 03:05 UTCJul 26, 14:15 UTC11h 11m
2026-07-25 THY5KM IST → IAH Jul 25, 12:35 UTCJul 26, 00:50 UTC12h 15m
2026-07-25 THY6KL ATH → IST Jul 25, 08:10 UTCJul 25, 09:20 UTC1h 10m
2026-07-25 THY8FW IST → ATH Jul 25, 05:00 UTCJul 25, 06:00 UTC1h 0m
2026-07-24 THY6915 - Jul 24, 17:15 UTCJul 25, 01:45 UTC8h 30m
2026-07-24 THY6FL NOP → IST Jul 24, 10:05 UTCJul 24, 12:45 UTC2h 40m
2026-07-24 THY7WT DUB → IST Jul 24, 05:00 UTCJul 24, 08:10 UTC3h 10m
2026-07-23 THY73 CAN → IST Jul 23, 18:05 UTCJul 24, 01:05 UTC7h 0m
2026-07-23 THY73 CAN → IST Jul 23, 15:55 UTCJul 23, 16:10 UTC15m
2026-07-22 THY72 IST → CAN Jul 22, 22:35 UTCJul 23, 06:00 UTC7h 25m
2026-07-22 THY21 PEK → IST Jul 22, 10:20 UTCJul 22, 12:05 UTC1h 45m
2026-07-22 THY21 PEK → IST Jul 22, 01:35 UTCJul 22, 02:00 UTC25m
2026-07-21 THY20 IST → ICN Jul 21, 22:45 UTCJul 21, 23:10 UTC25m
2026-07-21 THY20 IST → ICN Jul 21, 14:10 UTCJul 21, 21:55 UTC7h 45m
2026-07-21 THY281 PVG → IST Jul 21, 11:05 UTCJul 21, 11:25 UTC20m
2026-07-21 THY281 PVG → IST Jul 21, 01:50 UTCJul 21, 10:25 UTC8h 35m
2026-07-20 THY281 PVG → IST Jul 20, 14:20 UTCJul 21, 10:25 UTC20h 5m
2026-07-20 THY281 PVG → IST Jul 20, 12:40 UTCJul 21, 10:25 UTC21h 45m
2026-07-19 THY71 - Jul 19, 17:35 UTCJul 20, 00:40 UTC7h 5m
2026-07-19 THY71 - Jul 19, 15:25 UTCJul 19, 15:40 UTC15m
2026-07-18 THY70 - Jul 18, 23:55 UTCJul 19, 08:40 UTC8h 45m
2026-07-18 THY70 - Jul 18, 22:45 UTCJul 18, 23:10 UTC25m
2026-07-18 THY4YH - Jul 18, 19:05 UTCJul 18, 19:45 UTC40m
2026-07-18 THY80E - Jul 18, 16:30 UTCJul 18, 17:10 UTC40m
2026-07-18 THY8 IAD → IST Jul 18, 02:00 UTCJul 18, 11:30 UTC9h 31m
2026-07-17 THY7 - Jul 17, 13:35 UTCJul 17, 23:50 UTC10h 15m
2026-07-17 THY6KL - Jul 17, 07:40 UTCJul 17, 08:40 UTC1h 0m
2026-07-17 THY8FW - Jul 17, 04:49 UTCJul 17, 05:50 UTC1h 0m
2026-07-16 THY27 - Jul 16, 16:19 UTCJul 17, 00:55 UTC8h 35m
2026-07-15 THY26 - Jul 15, 23:50 UTCJul 16, 23:44 UTC23h 55m
2026-07-15 THY26 - Jul 15, 22:55 UTCJul 16, 16:40 UTC17h 45m
2026-07-15 THY3MJ - Jul 15, 11:00 UTCJul 15, 13:55 UTC2h 55m
2026-07-15 THY30S - Jul 15, 05:15 UTCJul 15, 08:55 UTC3h 40m
2026-07-14 THY4 - Jul 14, 17:30 UTCJul 15, 02:35 UTC9h 4m
2026-07-14 THY3 - Jul 14, 04:45 UTCJul 14, 14:15 UTC9h 30m
2026-07-13 THY85 - Jul 13, 13:55 UTCJul 14, 01:35 UTC11h 40m
2026-07-12 THY84 - Jul 12, 23:40 UTCJul 13, 10:30 UTC10h 50m
2026-07-12 THY12 - Jul 12, 05:35 UTCJul 12, 14:40 UTC9h 5m
2026-07-11 THY11 - Jul 11, 16:35 UTCJul 12, 02:25 UTC9h 50m
2026-07-11 THY8LV - Jul 11, 03:01 UTCJul 11, 11:55 UTC8h 55m
2026-07-10 THY1GJ - Jul 10, 14:30 UTCJul 11, 00:40 UTC10h 10m
2026-07-10 THY6 - Jul 10, 01:45 UTCJul 10, 11:20 UTC9h 35m
2026-07-09 THY5 - Jul 9, 12:10 UTCJul 9, 22:55 UTC10h 45m
2026-07-09 THY2RC - Jul 9, 06:55 UTCJul 9, 07:45 UTC50m
2026-07-09 THY5JA - Jul 9, 04:25 UTCJul 9, 05:15 UTC50m
2026-07-08 THY89 - Jul 8, 23:20 UTCJul 9, 01:40 UTC2h 20m
2026-07-08 THY89 PEK → IST Jul 8, 16:15 UTCJul 8, 16:25 UTC10m
2026-07-08 THY88 IST → PEK Jul 8, 06:40 UTCJul 8, 07:00 UTC20m
2026-07-07 THY88 IST → PEK Jul 7, 23:25 UTCJul 8, 00:55 UTC1h 30m

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 TC-JJG page for operator, model, and routing details .

Mode-S 4BA947 frequently asked

What is Mode-S code 4BA947?
4BA947 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JJG.
Where is Mode-S 4BA947 registered?
Mode-S code 4BA947 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA947 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA947, octal 22724507, decimal 4,958,535.
What flights does 4BA947 operate?
Mode-S 4BA947 has broadcast 20 distinct callsigns, including THY73, THY88, THY77J, THY26, THY99D.