Apparatus

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sensors Mode-S transponder

8A05CD

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-NAU · BOEING 737-500

Hex
8A05CD
Octal
42402715
Decimal
9,045,453
Country
ID
Tail
PK-NAU
Type
B735
No current signal · last broadcast 4h ago
Flights observed
186
Distinct callsigns
20
Country
ID
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 8A05CD.

Country allocation

The ICAO 24-bit address 8A05CD 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
LKN280 - 30 2026-07-09
LKN191 - 30 2026-07-14
LKN091 - 24 2026-07-05
LKN190 - 21 2026-07-14
LKN079 - 17 2026-07-14
LKN090 - 14 2026-07-01
LKN281 Lankair 13 2026-06-12
LKN171 - 12 2026-07-05
LKN170 - 5 2026-06-23
LKN033 - 5 2026-07-11
LKN032 - 3 2026-07-11
LKN7073 - 2 2026-05-19
LKN7055 - 2 2026-05-19
LKN078 - 2 2026-06-16
LKO090 - 1 2026-07-05
LKN7273 - 1 2026-06-14
LKN7272 Lankair 1 2026-06-14
LKN7185 - 1 2026-05-18
LKN7054 - 1 2026-05-18
LKN19 - 1 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 LKN190 - Jul 14, 22:50 UTCJul 14, 23:00 UTC10m
2026-07-14 LKN079 - Jul 14, 11:20 UTCJul 14, 11:30 UTC10m
2026-07-14 LKN191 - Jul 14, 07:50 UTCJul 14, 08:00 UTC10m
2026-07-13 LKN191 - Jul 13, 11:30 UTCJul 13, 11:50 UTC20m
2026-07-11 LKN033 - Jul 11, 11:55 UTCJul 11, 12:10 UTC15m
2026-07-11 LKN033 - Jul 11, 10:55 UTCJul 11, 11:20 UTC25m
2026-07-11 LKN032 - Jul 11, 04:40 UTCJul 11, 05:50 UTC1h 10m
2026-07-09 LKN280 - Jul 9, 23:20 UTCJul 10, 00:05 UTC45m
2026-07-08 LKN280 - Jul 8, 22:40 UTCJul 9, 14:05 UTC15h 25m
2026-07-08 LKN079 - Jul 8, 12:00 UTCJul 8, 12:15 UTC15m
2026-07-08 LKN191 - Jul 8, 08:20 UTCJul 8, 08:30 UTC10m
2026-07-07 LKN190 - Jul 7, 22:55 UTCJul 7, 23:05 UTC10m
2026-07-07 LKN079 - Jul 7, 11:40 UTCJul 7, 11:55 UTC15m
2026-07-07 LKN191 - Jul 7, 08:05 UTCJul 7, 08:20 UTC15m
2026-07-06 LKN190 - Jul 6, 22:55 UTCJul 6, 23:05 UTC10m
2026-07-06 LKN079 - Jul 6, 11:35 UTCJul 6, 11:50 UTC15m
2026-07-06 LKN191 - Jul 6, 07:50 UTCJul 6, 08:00 UTC10m
2026-07-05 LKN19 - Jul 5, 22:50 UTCJul 5, 23:00 UTC10m
2026-07-05 LKN091 - Jul 5, 10:30 UTCJul 5, 10:45 UTC15m
2026-07-05 LKN091 - Jul 5, 09:35 UTCJul 5, 09:50 UTC15m
2026-07-05 LKO090 - Jul 5, 07:55 UTCJul 5, 08:55 UTC1h 0m
2026-07-05 LKN171 - Jul 5, 05:55 UTCJul 5, 06:05 UTC10m
2026-07-04 LKN191 - Jul 4, 10:30 UTCJul 4, 10:45 UTC15m
2026-07-03 LKN079 - Jul 3, 11:25 UTCJul 3, 11:45 UTC20m
2026-07-03 LKN191 - Jul 3, 08:00 UTCJul 3, 08:10 UTC10m
2026-07-02 LKN079 - Jul 2, 11:55 UTCJul 2, 12:15 UTC20m
2026-07-02 LKN191 - Jul 2, 07:45 UTCJul 2, 08:05 UTC20m
2026-07-01 LKN190 - Jul 1, 22:40 UTCJul 1, 22:50 UTC10m
2026-07-01 LKN091 - Jul 1, 12:20 UTCJul 1, 12:30 UTC10m
2026-07-01 LKN091 - Jul 1, 11:15 UTCJul 1, 11:35 UTC20m
2026-07-01 LKN090 - Jul 1, 10:15 UTCJul 1, 10:35 UTC20m
2026-07-01 LKN090 - Jul 1, 09:30 UTCJul 1, 09:45 UTC15m
2026-06-30 LKN191 - Jun 30, 07:35 UTCJun 30, 07:50 UTC15m
2026-06-29 LKN079 - Jun 29, 11:39 UTCJun 29, 11:55 UTC15m
2026-06-29 LKN171 - Jun 29, 05:45 UTCJun 29, 06:14 UTC30m
2026-06-28 LKN091 - Jun 28, 10:35 UTCJun 28, 10:50 UTC15m
2026-06-28 LKN091 - Jun 28, 09:34 UTCJun 28, 10:00 UTC25m
2026-06-28 LKN090 - Jun 28, 07:44 UTCJun 28, 08:44 UTC1h 0m
2026-06-28 LKN171 - Jun 28, 06:00 UTCJun 28, 06:15 UTC15m
2026-06-27 LKN079 - Jun 27, 11:55 UTCJun 27, 12:09 UTC15m
2026-06-27 LKN191 - Jun 27, 08:05 UTCJun 27, 08:20 UTC15m
2026-06-26 LKN091 - Jun 26, 10:30 UTCJun 26, 10:44 UTC15m
2026-06-26 LKN091 - Jun 26, 09:24 UTCJun 26, 09:45 UTC20m
2026-06-26 LKN090 - Jun 26, 07:35 UTCJun 26, 08:34 UTC1h 0m
2026-06-26 LKN171 - Jun 26, 06:00 UTCJun 26, 06:15 UTC15m
2026-06-25 LKN171 - Jun 25, 05:55 UTCJun 25, 06:14 UTC20m
2026-06-24 LKN171 - Jun 24, 05:49 UTCJun 24, 06:10 UTC20m
2026-06-23 LKN170 - Jun 23, 23:24 UTCJun 23, 23:34 UTC10m
2026-06-23 LKN033 - Jun 23, 11:04 UTCJun 23, 11:19 UTC15m
2026-06-23 LKN032 - Jun 23, 04:19 UTCJun 23, 05:20 UTC1h 0m

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

Mode-S 8A05CD frequently asked

What is Mode-S code 8A05CD?
8A05CD is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-NAU.
Where is Mode-S 8A05CD registered?
Mode-S code 8A05CD is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A05CD broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A05CD, octal 42402715, decimal 9,045,453.
What flights does 8A05CD operate?
Mode-S 8A05CD has broadcast 20 distinct callsigns, including LKN280, LKN191, LKN091, LKN190, LKN079.