Apparatus

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sensors Mode-S transponder

8A064C

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GTA · AIRBUS A-320neo

Hex
8A064C
Octal
42403114
Decimal
9,045,580
Country
ID
Tail
PK-GTA
Type
A20N
No current signal · last broadcast Jul 26, 14:45 UTC
Flights observed
483
Distinct callsigns
20
Country
ID
Last broadcast
Jul 26, 14:45 UTC

Last known position

Most recent position reported by Mode-S 8A064C.

Country allocation

The ICAO 24-bit address 8A064C falls within the block assigned to Indonesia (ID) by ICAO Annex 10, Volume III. Every aircraft registered in Indonesia 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
CTV523 - 49 2026-07-03
CTV513 Escuela De Pilotos Are Aviacion 38 2026-07-03
CTV522 - 30 2026-07-02
CTV512 - 29 2026-07-03
CTV8836 Escuela De Pilotos Are Aviacion 9 2026-06-02
CTV779 - 9 2026-07-13
CTV491 - 9 2026-07-16
CTV527 - 8 2026-06-25
CTV174 Escuela De Pilotos Are Aviacion 8 2026-06-21
CTV778 - 7 2026-06-21
CTV503 - 7 2026-06-17
CTV961 - 6 2026-07-06
CTV960 - 6 2026-07-06
CTV955 - 6 2026-07-15
CTV841 Escuela De Pilotos Are Aviacion 6 2026-06-02
CTV680 - 6 2026-07-17
CTV423 - 6 2026-06-24
CTV301 - 6 2026-07-16
CTV300 - 6 2026-06-20
CTV953 - 5 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CTV171 SUB → CGK Jul 26, 14:05 UTCJul 26, 14:45 UTC40m
2026-07-25 CTV949 BTH → SUB Jul 25, 05:25 UTCJul 25, 05:35 UTC10m
2026-07-22 CTV172 HLP → SUB Jul 22, 13:25 UTCJul 22, 14:05 UTC40m
2026-07-22 CTV173 - Jul 22, 11:45 UTCJul 22, 12:20 UTC35m
2026-07-20 CTV171 - Jul 20, 13:55 UTCJul 20, 14:25 UTC30m
2026-07-19 CTV726 CGK → SUB Jul 19, 12:10 UTCJul 19, 12:50 UTC40m
2026-07-19 CTV969 BTH → CGK Jul 19, 09:50 UTCJul 19, 10:55 UTC1h 5m
2026-07-19 CTV968 CGK → BTH Jul 19, 07:25 UTCJul 19, 08:25 UTC1h 0m
2026-07-19 CTV933 PKU → CGK Jul 19, 04:45 UTCJul 19, 06:15 UTC1h 30m
2026-07-19 CTV932 CGK → PKU Jul 19, 02:35 UTCJul 19, 03:40 UTC1h 5m
2026-07-18 CTV727 SUB → CGK Jul 18, 10:10 UTCJul 18, 13:20 UTC3h 10m
2026-07-17 CTV680 - Jul 17, 21:50 UTCJul 18, 08:55 UTC11h 6m
2026-07-17 CTV217 - Jul 17, 13:45 UTCJul 17, 18:34 UTC4h 50m
2026-07-17 CTV341 - Jul 17, 12:00 UTCJul 17, 12:19 UTC20m
2026-07-17 CTV340 - Jul 17, 07:14 UTCJul 17, 07:50 UTC35m
2026-07-17 CTV719 - Jul 17, 05:39 UTCJul 17, 05:55 UTC15m
2026-07-17 CTV718 - Jul 17, 02:25 UTCJul 17, 05:04 UTC2h 40m
2026-07-17 CTV413 - Jul 17, 01:00 UTCJul 17, 01:20 UTC20m
2026-07-16 CTV967 - Jul 16, 09:35 UTCJul 16, 10:29 UTC55m
2026-07-16 CTV966 - Jul 16, 07:35 UTCJul 16, 08:30 UTC55m
2026-07-16 CTV491 - Jul 16, 06:10 UTCJul 16, 06:25 UTC15m
2026-07-16 CTV301 - Jul 16, 00:50 UTCJul 16, 01:05 UTC15m
2026-07-15 CTV955 - Jul 15, 12:40 UTCJul 15, 14:10 UTC1h 30m
2026-07-15 CTV954 - Jul 15, 10:15 UTCJul 15, 11:20 UTC1h 5m
2026-07-15 CTV681 - Jul 15, 08:50 UTCJul 15, 09:05 UTC15m
2026-07-14 CTV680 - Jul 14, 21:50 UTCJul 14, 22:30 UTC40m
2026-07-14 CTV955 - Jul 14, 10:25 UTCJul 14, 14:05 UTC3h 40m
2026-07-14 CTV681 - Jul 14, 08:40 UTCJul 14, 09:00 UTC20m
2026-07-13 CTV680 - Jul 13, 21:50 UTCJul 13, 22:30 UTC40m
2026-07-13 CTV427 - Jul 13, 15:20 UTCJul 13, 15:40 UTC20m
2026-07-13 CTV426 - Jul 13, 10:50 UTCJul 13, 11:10 UTC20m
2026-07-13 CTV779 - Jul 13, 07:01 UTCJul 13, 09:35 UTC2h 35m
2026-07-13 CTV985 - Jul 13, 05:25 UTCJul 13, 05:45 UTC20m
2026-07-13 CTV984 - Jul 13, 03:01 UTCJul 13, 03:20 UTC20m
2026-07-13 CTV175 - Jul 13, 01:35 UTCJul 13, 01:50 UTC15m
2026-07-12 CTV170 - Jul 12, 22:15 UTCJul 12, 22:55 UTC40m
2026-07-12 CTV945 - Jul 12, 14:01 UTCJul 12, 14:15 UTC15m
2026-07-12 CTV945 - Jul 12, 12:55 UTCJul 12, 13:25 UTC30m
2026-07-12 CTV944 - Jul 12, 10:50 UTCJul 12, 12:01 UTC1h 10m
2026-07-12 CTV213 - Jul 12, 09:25 UTCJul 12, 09:45 UTC20m
2026-07-11 CTV212 - Jul 11, 22:10 UTCJul 11, 22:45 UTC35m
2026-07-11 CTV947 - Jul 11, 14:45 UTCJul 11, 16:00 UTC1h 15m
2026-07-11 CTV946 - Jul 11, 12:35 UTCJul 11, 13:50 UTC1h 15m
2026-07-11 CTV646 - Jul 11, 07:25 UTCJul 11, 11:35 UTC4h 10m
2026-07-11 CTV752 - Jul 11, 02:45 UTCJul 11, 06:05 UTC3h 20m
2026-07-11 CTV981 - Jul 11, 01:20 UTCJul 11, 01:30 UTC10m
2026-07-10 CTV980 - Jul 10, 23:15 UTCJul 10, 23:35 UTC20m
2026-07-10 CTV481 - Jul 10, 13:00 UTCJul 10, 13:10 UTC10m
2026-07-10 CTV492 - Jul 10, 09:25 UTCJul 10, 09:40 UTC15m
2026-07-10 CTV717 - Jul 10, 08:05 UTCJul 10, 08:20 UTC15m

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 PK-GTA page for operator, model, and routing details .

Mode-S 8A064C frequently asked

What is Mode-S code 8A064C?
8A064C is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GTA.
Where is Mode-S 8A064C registered?
Mode-S code 8A064C is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A064C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 14:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A064C, octal 42403114, decimal 9,045,580.
What flights does 8A064C operate?
Mode-S 8A064C has broadcast 20 distinct callsigns, including CTV523, CTV513, CTV522, CTV512, CTV8836.