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 2h ago
Flights observed
218
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

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
THY88 Turkish Airlines 9 2026-07-08
THY73 - 9 2026-06-25
THY77J - 8 2026-07-02
THY99D Turkish Airlines 7 2026-05-29
THY8LV - 6 2026-07-11
THY72 Turkish Airlines 6 2026-06-23
THY6 - 6 2026-07-10
THY5 - 6 2026-07-09
THY26 Turkish Airlines 6 2026-06-07
THY2 - 6 2026-06-28
THY1GJ - 6 2026-07-10
THY1 Turkish Airlines 6 2026-06-27
THY89 Turkish Airlines 5 2026-07-08
THY71 Turkish Airlines 5 2026-07-02
THY85 - 4 2026-07-13
THY84 - 4 2026-07-12
THY55 Turkish Airlines 4 2026-06-30
THY51Q Turkish Airlines 4 2026-04-15
THY27 Turkish Airlines 4 2026-06-09
THY91 Turkish Airlines 3 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THY4 - Jul 14, 17:30 UTCJul 14, 19:00 UTC1h 30m
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
2026-07-07 THY89 PEK → IST Jul 7, 01:20 UTCJul 7, 01:35 UTC15m
2026-07-06 THY89 PEK → IST Jul 6, 16:15 UTCJul 7, 00:35 UTC8h 20m
2026-07-06 THY88 IST → PEK Jul 6, 06:45 UTCJul 6, 06:55 UTC10m
2026-07-05 THY88 IST → PEK Jul 5, 23:00 UTCJul 6, 00:50 UTC1h 50m
2026-07-05 THY6888 - Jul 5, 07:00 UTCJul 5, 17:55 UTC10h 55m
2026-07-02 THY77J - Jul 2, 12:45 UTCJul 3, 00:05 UTC11h 20m
2026-07-02 THY66C - Jul 2, 08:15 UTCJul 2, 09:05 UTC50m
2026-07-02 THY5AB - Jul 2, 05:35 UTCJul 2, 06:25 UTC50m
2026-07-02 THY71 HKG → IST Jul 2, 01:25 UTCJul 2, 01:35 UTC10m
2026-07-01 THY71 HKG → IST Jul 1, 16:10 UTCJul 2, 00:40 UTC8h 30m
2026-07-01 THY71 HKG → IST Jul 1, 15:10 UTCJul 1, 15:25 UTC15m
2026-06-30 THY70 IST → HKG Jun 30, 23:00 UTCJul 1, 08:30 UTC9h 30m
2026-06-30 THY55 SIN → IST Jun 30, 01:50 UTCJun 30, 02:05 UTC15m
2026-06-29 THY55 SIN → IST Jun 29, 15:34 UTCJun 30, 01:09 UTC9h 35m
2026-06-28 THY54 - Jun 28, 23:44 UTCJun 29, 10:04 UTC10h 20m
2026-06-28 THY6TR - Jun 28, 18:25 UTCJun 28, 20:09 UTC1h 45m
2026-06-28 THY2XD - Jun 28, 15:05 UTCJun 28, 16:39 UTC1h 35m
2026-06-28 THY2 - Jun 28, 03:35 UTCJun 28, 12:09 UTC8h 35m
2026-06-27 THY1 IST → JFK Jun 27, 15:00 UTCJun 28, 00:39 UTC9h 40m
2026-06-26 THY352 - Jun 26, 21:59 UTCJun 27, 09:40 UTC11h 40m
2026-06-26 THY7ER - Jun 26, 17:59 UTCJun 26, 18:49 UTC50m
2026-06-26 THY1FC - Jun 26, 15:20 UTCJun 26, 16:09 UTC50m
2026-06-26 THY8LV - Jun 26, 03:05 UTCJun 26, 12:24 UTC9h 20m
2026-06-25 THY1GJ VKO → ESB Jun 25, 14:50 UTCJun 26, 00:39 UTC9h 50m
2026-06-25 THY8NK - Jun 25, 09:05 UTCJun 25, 11:39 UTC2h 35m
2026-06-25 THY7JV - Jun 25, 04:20 UTCJun 25, 06:35 UTC2h 15m
2026-06-25 THY73 - Jun 25, 01:14 UTCJun 25, 01:30 UTC15m
2026-06-24 THY73 - Jun 24, 15:44 UTCJun 25, 00:40 UTC8h 55m
2026-06-23 THY72 IST → CAN Jun 23, 23:59 UTCJun 24, 05:54 UTC5h 55m
2026-06-23 THY72 IST → CAN Jun 23, 22:44 UTCJun 23, 23:10 UTC25m
2026-06-23 THY2AY - Jun 23, 03:00 UTCJun 23, 14:04 UTC11h 5m
2026-06-22 THY5KM IST → IAH Jun 22, 12:10 UTCJun 23, 00:30 UTC12h 20m
2026-06-22 THY2 - Jun 22, 00:20 UTCJun 22, 09:19 UTC9h 0m
2026-06-21 THY1 IST → JFK Jun 21, 11:44 UTCJun 21, 21:34 UTC9h 50m

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 2h ago.
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 THY88, THY73, THY77J, THY99D, THY8LV.