Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

8A0377

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GLN · AIRBUS A-320

Hex
8A0377
Octal
42401567
Decimal
9,044,855
Country
ID
Tail
PK-GLN
Type
A320
No current signal · last broadcast 1d ago
Flights observed
337
Distinct callsigns
20
Country
ID
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 8A0377.

Country allocation

The ICAO 24-bit address 8A0377 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
CTV969 - 8 2026-07-06
CTV979 Escuela De Pilotos Are Aviacion 7 2026-06-26
CTV978 - 6 2026-06-26
CTV935 Escuela De Pilotos Are Aviacion 6 2026-05-04
CTV922 Escuela De Pilotos Are Aviacion 6 2026-05-04
CTV752 - 6 2026-06-26
CTV980 - 5 2026-06-25
CTV968 - 5 2026-07-06
CTV925 Escuela De Pilotos Are Aviacion 5 2026-05-04
CTV924 Escuela De Pilotos Are Aviacion 5 2026-05-04
CTV923 Escuela De Pilotos Are Aviacion 5 2026-05-03
CTV883 - 5 2026-07-03
CTV447 Escuela De Pilotos Are Aviacion 5 2026-06-13
CTV439 Escuela De Pilotos Are Aviacion 5 2026-06-12
CTV437 - 5 2026-06-29
CTV991 - 4 2026-06-14
CTV990 - 4 2026-06-14
CTV943 - 4 2026-06-25
CTV939 - 4 2026-06-14
CTV933 - 4 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CTV212 - Jul 13, 22:15 UTCJul 13, 22:35 UTC20m
2026-07-13 CTV945 - Jul 13, 12:55 UTCJul 13, 14:10 UTC1h 15m
2026-07-13 CTV944 - Jul 13, 10:45 UTCJul 13, 11:45 UTC1h 0m
2026-07-13 CTV213 - Jul 13, 09:15 UTCJul 13, 09:30 UTC15m
2026-07-13 CTV346 - Jul 13, 01:15 UTCJul 13, 01:40 UTC25m
2026-07-12 CTV725 - Jul 12, 23:35 UTCJul 12, 23:50 UTC15m
2026-07-06 CTV726 - Jul 6, 12:15 UTCJul 6, 12:55 UTC40m
2026-07-06 CTV969 - Jul 6, 11:05 UTCJul 6, 11:20 UTC15m
2026-07-06 CTV969 - Jul 6, 10:10 UTCJul 6, 10:25 UTC15m
2026-07-06 CTV968 - Jul 6, 07:45 UTCJul 6, 08:50 UTC1h 5m
2026-07-06 CTV913 - Jul 6, 04:30 UTCJul 6, 06:35 UTC2h 5m
2026-07-06 CTV912 - Jul 6, 01:15 UTCJul 6, 03:05 UTC1h 50m
2026-07-05 CTV987 - Jul 5, 23:50 UTCJul 6, 00:05 UTC15m
2026-07-05 CTV986 - Jul 5, 13:45 UTCJul 5, 14:00 UTC15m
2026-07-05 CTV340 - Jul 5, 07:10 UTCJul 5, 11:55 UTC4h 45m
2026-07-05 CTV719 - Jul 5, 05:30 UTCJul 5, 05:40 UTC10m
2026-07-05 CTV718 - Jul 5, 02:30 UTCJul 5, 03:10 UTC40m
2026-07-05 CTV413 - Jul 5, 00:45 UTCJul 5, 01:05 UTC20m
2026-07-04 CTV967 - Jul 4, 09:15 UTCJul 4, 10:15 UTC1h 0m
2026-07-04 CTV966 - Jul 4, 07:20 UTCJul 4, 08:20 UTC1h 0m
2026-07-04 CTV491 - Jul 4, 05:55 UTCJul 4, 06:15 UTC20m
2026-07-04 CTV301 - Jul 4, 00:45 UTCJul 4, 01:00 UTC15m
2026-07-03 CTV300 - Jul 3, 18:00 UTCJul 3, 18:10 UTC10m
2026-07-03 CTV481 - Jul 3, 13:10 UTCJul 3, 13:25 UTC15m
2026-07-03 CTV737 - Jul 3, 08:20 UTCJul 3, 08:35 UTC15m
2026-07-03 CTV736 - Jul 3, 05:05 UTCJul 3, 05:45 UTC40m
2026-07-03 CTV883 - Jul 3, 02:00 UTCJul 3, 03:50 UTC1h 50m
2026-07-02 CTV910 CGK → KNO Jul 2, 22:40 UTCJul 3, 00:20 UTC1h 40m
2026-07-02 CTV765 - Jul 2, 12:25 UTCJul 2, 12:40 UTC15m
2026-07-02 CTV764 - Jul 2, 10:05 UTCJul 2, 10:40 UTC35m
2026-07-02 CTV453 - Jul 2, 08:45 UTCJul 2, 09:00 UTC15m
2026-07-02 CTV763 - Jul 2, 03:15 UTCJul 2, 04:05 UTC50m
2026-07-02 CTV762 - Jul 2, 01:20 UTCJul 2, 01:45 UTC25m
2026-07-01 CTV911 - Jul 1, 22:20 UTCJul 2, 00:05 UTC1h 45m
2026-07-01 CTV882 CGK → KNO Jul 1, 13:10 UTCJul 1, 14:50 UTC1h 40m
2026-07-01 CTV965 - Jul 1, 11:30 UTCJul 1, 11:45 UTC15m
2026-07-01 CTV965 - Jul 1, 10:50 UTCJul 1, 11:00 UTC10m
2026-07-01 CTV964 - Jul 1, 08:40 UTCJul 1, 09:35 UTC55m
2026-07-01 CTV686 - Jul 1, 03:25 UTCJul 1, 04:05 UTC40m
2026-07-01 CTV211 - Jul 1, 01:45 UTCJul 1, 02:00 UTC15m
2026-06-30 CTV210 - Jun 30, 18:40 UTCJun 30, 19:00 UTC20m
2026-06-30 CTV959 - Jun 30, 11:05 UTCJun 30, 11:15 UTC10m
2026-06-30 CTV959 - Jun 30, 10:00 UTCJun 30, 10:35 UTC35m
2026-06-30 CTV958 - Jun 30, 07:10 UTCJun 30, 08:15 UTC1h 5m
2026-06-30 CTV971 - Jun 30, 05:55 UTCJun 30, 06:10 UTC15m
2026-06-29 CTV493 - Jun 29, 11:35 UTCJun 29, 11:50 UTC15m
2026-06-29 CTV437 - Jun 29, 06:40 UTCJun 29, 06:54 UTC15m
2026-06-28 CTV493 - Jun 28, 11:35 UTCJun 28, 11:50 UTC15m
2026-06-28 CTV437 - Jun 28, 06:40 UTCJun 28, 06:49 UTC10m
2026-06-26 CTV728 CGK → SUB Jun 26, 14:15 UTCJun 26, 14:55 UTC40m

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

Mode-S 8A0377 frequently asked

What is Mode-S code 8A0377?
8A0377 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GLN.
Where is Mode-S 8A0377 registered?
Mode-S code 8A0377 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A0377 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 8A0377, octal 42401567, decimal 9,044,855.
What flights does 8A0377 operate?
Mode-S 8A0377 has broadcast 20 distinct callsigns, including CTV969, CTV979, CTV978, CTV935, CTV922.