Apparatus

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sensors Mode-S transponder

88434A

ICAO 24-bit transponder address · allocated to Thailand

Currently assigned to HS-PZJ · ATR-72-600

Hex
88434A
Octal
42041512
Decimal
8,930,122
Country
TH
Tail
HS-PZJ
Type
AT76
No current signal · last broadcast 1h ago
Flights observed
179
Distinct callsigns
20
Country
TH
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 88434A.

Country allocation

The ICAO 24-bit address 88434A falls within the block assigned to Thailand (TH) by ICAO Annex 10, Volume III. Every aircraft registered in Thailand 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
BKP306 Bangkok Airways 7 2026-07-19
BKP305 Bangkok Airways 7 2026-07-19
BKP188 - 7 2026-07-19
BKP906 - 6 2026-07-18
BKP905 - 6 2026-07-18
BKP212 - 6 2026-07-18
BKP211 - 6 2026-07-18
BKP157 Bangkok Airways 6 2026-07-19
BKP924 Bangkok Airways 5 2026-07-19
BKP907 - 5 2026-07-16
BKP903 Bangkok Airways 5 2026-07-19
BKP192 - 5 2026-07-09
BKP127 - 5 2026-07-16
BKP115 - 5 2026-07-13
BKP908 - 4 2026-07-16
BKP455 - 4 2026-07-17
BKP454 - 4 2026-07-17
BKP453 - 4 2026-07-13
BKP452 - 4 2026-07-13
BKP451 Bangkok Airways 4 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 BKP282 - Jul 21, 09:00 UTCJul 21, 09:40 UTC40m
2026-07-21 BKP281 - Jul 21, 06:05 UTCJul 21, 07:00 UTC55m
2026-07-21 BKP293 USM → UTP Jul 21, 05:00 UTCJul 21, 05:20 UTC20m
2026-07-21 BKP451 DMK → USM Jul 21, 02:20 UTCJul 21, 02:55 UTC35m
2026-07-21 BKP450 USM → DMK Jul 21, 00:15 UTCJul 21, 01:20 UTC1h 5m
2026-07-20 BKP193 - Jul 20, 13:15 UTCJul 20, 14:00 UTC45m
2026-07-20 BKP214 - Jul 20, 11:20 UTCJul 20, 11:50 UTC30m
2026-07-20 BKP213 - Jul 20, 09:05 UTCJul 20, 09:40 UTC35m
2026-07-20 BKP942 LPQ → BKK Jul 20, 07:05 UTCJul 20, 07:20 UTC15m
2026-07-20 BKP941 BKK → LPQ Jul 20, 02:55 UTCJul 20, 03:25 UTC30m
2026-07-19 BKP188 - Jul 19, 13:50 UTCJul 19, 14:20 UTC30m
2026-07-19 BKP157 BKK → USM Jul 19, 08:05 UTCJul 19, 08:25 UTC20m
2026-07-19 BKP306 TDX → BKK Jul 19, 06:35 UTCJul 19, 07:00 UTC25m
2026-07-19 BKP305 BKK → TDX Jul 19, 04:45 UTCJul 19, 05:00 UTC15m
2026-07-19 BKP924 SAI → BKK Jul 19, 03:25 UTCJul 19, 03:45 UTC20m
2026-07-19 BKP903 BKK → SAI Jul 19, 00:35 UTCJul 19, 00:50 UTC15m
2026-07-18 BKP188 - Jul 18, 13:40 UTCJul 18, 14:00 UTC20m
2026-07-18 BKP157 BKK → USM Jul 18, 08:10 UTCJul 18, 08:30 UTC20m
2026-07-18 BKP906 - Jul 18, 06:25 UTCJul 18, 06:45 UTC20m
2026-07-18 BKP905 - Jul 18, 03:55 UTCJul 18, 04:05 UTC10m
2026-07-18 BKP212 - Jul 18, 02:35 UTCJul 18, 03:00 UTC26m
2026-07-18 BKP211 - Jul 18, 00:04 UTCJul 18, 00:35 UTC30m
2026-07-17 BKP196 - Jul 17, 14:55 UTCJul 17, 15:15 UTC20m
2026-07-17 BKP455 - Jul 17, 11:25 UTCJul 17, 11:50 UTC25m
2026-07-17 BKP454 - Jul 17, 09:50 UTCJul 17, 10:10 UTC20m
2026-07-17 BKP149 - Jul 17, 06:54 UTCJul 17, 07:05 UTC10m
2026-07-17 BKP1186 - Jul 17, 05:30 UTCJul 17, 05:55 UTC25m
2026-07-17 BKP1187 - Jul 17, 02:45 UTCJul 17, 02:54 UTC10m
2026-07-17 BKP1196 - Jul 17, 01:29 UTCJul 17, 01:55 UTC25m
2026-07-16 BKP1197 - Jul 16, 22:40 UTCJul 16, 22:59 UTC20m
2026-07-16 BKP908 - Jul 16, 14:10 UTCJul 16, 14:40 UTC30m
2026-07-16 BKP907 - Jul 16, 11:40 UTCJul 16, 11:54 UTC15m
2026-07-16 BKP150 - Jul 16, 09:25 UTCJul 16, 09:50 UTC25m
2026-07-16 BKP127 - Jul 16, 03:30 UTCJul 16, 03:45 UTC15m
2026-07-14 BKP150 - Jul 14, 09:35 UTCJul 14, 10:10 UTC35m
2026-07-13 BKP453 - Jul 13, 06:50 UTCJul 13, 07:15 UTC25m
2026-07-13 BKP452 - Jul 13, 05:15 UTCJul 13, 05:40 UTC25m
2026-07-13 BKP115 - Jul 13, 02:15 UTCJul 13, 02:30 UTC15m
2026-07-12 BKP188 - Jul 12, 14:01 UTCJul 12, 14:25 UTC25m
2026-07-12 BKP157 - Jul 12, 08:15 UTCJul 12, 08:30 UTC15m
2026-07-12 BKP306 - Jul 12, 06:45 UTCJul 12, 07:10 UTC25m
2026-07-12 BKP305 - Jul 12, 04:45 UTCJul 12, 05:01 UTC15m
2026-07-12 BKP924 - Jul 12, 03:10 UTCJul 12, 03:30 UTC20m
2026-07-12 BKP903 - Jul 12, 00:35 UTCJul 12, 00:45 UTC10m
2026-07-11 BKP176 - Jul 11, 13:00 UTCJul 11, 13:25 UTC25m
2026-07-11 BKP451 - Jul 11, 02:10 UTCJul 11, 02:40 UTC30m
2026-07-11 BKP450 - Jul 11, 00:30 UTCJul 11, 01:10 UTC40m
2026-07-10 BKP193 - Jul 10, 13:30 UTCJul 10, 14:00 UTC30m
2026-07-10 BKP214 - Jul 10, 12:10 UTCJul 10, 12:35 UTC25m
2026-07-10 BKP213 - Jul 10, 09:45 UTCJul 10, 10:25 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 HS-PZJ page for operator, model, and routing details .

Mode-S 88434A frequently asked

What is Mode-S code 88434A?
88434A is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-PZJ.
Where is Mode-S 88434A registered?
Mode-S code 88434A is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88434A broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88434A, octal 42041512, decimal 8,930,122.
What flights does 88434A operate?
Mode-S 88434A has broadcast 20 distinct callsigns, including BKP306, BKP305, BKP188, BKP906, BKP905.