Apparatus

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sensors Mode-S transponder

88434B

ICAO 24-bit transponder address · allocated to Thailand

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

Hex
88434B
Octal
42041513
Decimal
8,930,123
Country
TH
Tail
HS-PZK
Type
AT76
No current signal · last broadcast 11h ago
Flights observed
321
Distinct callsigns
20
Country
TH
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 88434B.

Country allocation

The ICAO 24-bit address 88434B 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
BKP936 - 13 2026-07-16
BKP150 - 13 2026-07-10
BKP935 - 12 2026-07-16
BKP176 - 12 2026-07-13
BKP127 - 12 2026-07-15
BKP452 - 11 2026-07-16
BKP450 - 11 2026-07-13
BKP305 - 11 2026-07-08
BKP185 - 11 2026-07-10
BKP453 - 10 2026-07-16
BKP451 - 9 2026-07-13
BKP308 - 9 2026-07-10
BKP307 - 9 2026-07-10
BKP306 - 9 2026-07-08
BKP193 - 9 2026-07-17
BKP294 - 8 2026-07-06
BKP282 - 8 2026-07-02
BKP214 - 8 2026-07-17
BKP213 - 8 2026-07-17
BKP115 - 8 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 BKP193 - Jul 17, 13:15 UTCJul 17, 13:29 UTC15m
2026-07-17 BKP214 - Jul 17, 11:39 UTCJul 17, 12:04 UTC25m
2026-07-17 BKP213 - Jul 17, 09:04 UTCJul 17, 09:20 UTC15m
2026-07-17 BKP942 - Jul 17, 07:14 UTCJul 17, 07:35 UTC20m
2026-07-17 BKP941 - Jul 17, 03:05 UTCJul 17, 03:20 UTC15m
2026-07-16 BKP936 - Jul 16, 14:55 UTCJul 16, 15:19 UTC25m
2026-07-16 BKP935 - Jul 16, 11:45 UTCJul 16, 12:00 UTC15m
2026-07-16 BKP158 - Jul 16, 09:40 UTCJul 16, 10:15 UTC35m
2026-07-16 BKP453 - Jul 16, 06:45 UTCJul 16, 07:10 UTC25m
2026-07-16 BKP452 - Jul 16, 05:15 UTCJul 16, 05:40 UTC25m
2026-07-16 BKP115 - Jul 16, 02:20 UTCJul 16, 02:35 UTC15m
2026-07-15 BKP936 - Jul 15, 14:20 UTCJul 15, 14:40 UTC20m
2026-07-15 BKP158 - Jul 15, 09:35 UTCJul 15, 10:10 UTC35m
2026-07-15 BKP127 - Jul 15, 03:40 UTCJul 15, 03:55 UTC15m
2026-07-15 BKP110 - Jul 15, 02:25 UTCJul 15, 02:50 UTC25m
2026-07-14 BKP109 - Jul 14, 23:30 UTCJul 14, 23:50 UTC20m
2026-07-14 BKP936 - Jul 14, 14:20 UTCJul 14, 14:40 UTC20m
2026-07-14 BKP935 - Jul 14, 11:15 UTCJul 14, 11:30 UTC15m
2026-07-14 BKP158 - Jul 14, 09:45 UTCJul 14, 10:20 UTC35m
2026-07-14 BKP127 - Jul 14, 03:50 UTCJul 14, 04:10 UTC20m
2026-07-14 BKP110 - Jul 14, 02:20 UTCJul 14, 02:45 UTC25m
2026-07-13 BKP109 - Jul 13, 23:35 UTCJul 13, 23:55 UTC20m
2026-07-13 BKP176 - Jul 13, 13:05 UTCJul 13, 13:30 UTC25m
2026-07-13 BKP451 - Jul 13, 02:10 UTCJul 13, 02:35 UTC25m
2026-07-13 BKP450 - Jul 13, 00:40 UTCJul 13, 01:10 UTC30m
2026-07-12 BKP193 - Jul 12, 13:10 UTCJul 12, 13:30 UTC20m
2026-07-12 BKP214 - Jul 12, 11:50 UTCJul 12, 12:05 UTC15m
2026-07-12 BKP213 - Jul 12, 09:25 UTCJul 12, 09:40 UTC15m
2026-07-12 BKP942 - Jul 12, 08:10 UTCJul 12, 08:30 UTC20m
2026-07-12 BKP941 - Jul 12, 03:55 UTCJul 12, 04:10 UTC15m
2026-07-12 BKP212 - Jul 12, 02:40 UTCJul 12, 03:01 UTC20m
2026-07-12 BKP211 - Jul 12, 00:10 UTCJul 12, 00:35 UTC25m
2026-07-11 BKP192 - Jul 11, 15:00 UTCJul 11, 15:30 UTC30m
2026-07-10 BKP185 - Jul 10, 13:25 UTCJul 10, 14:10 UTC45m
2026-07-10 BKP308 - Jul 10, 11:55 UTCJul 10, 12:30 UTC35m
2026-07-10 BKP307 - Jul 10, 10:30 UTCJul 10, 10:55 UTC25m
2026-07-10 BKP150 - Jul 10, 09:05 UTCJul 10, 09:35 UTC30m
2026-07-09 BKP453 - Jul 9, 06:25 UTCJul 9, 06:55 UTC30m
2026-07-09 BKP452 - Jul 9, 04:50 UTCJul 9, 05:25 UTC35m
2026-07-08 BKP193 - Jul 8, 13:45 UTCJul 8, 14:30 UTC45m
2026-07-08 BKP214 - Jul 8, 11:45 UTCJul 8, 12:20 UTC35m
2026-07-08 BKP213 - Jul 8, 09:40 UTCJul 8, 10:15 UTC35m
2026-07-08 BKP306 - Jul 8, 08:15 UTCJul 8, 08:55 UTC40m
2026-07-08 BKP305 - Jul 8, 06:55 UTCJul 8, 07:25 UTC30m
2026-07-08 BKP1186 - Jul 8, 05:25 UTCJul 8, 06:05 UTC40m
2026-07-08 BKP1187 - Jul 8, 02:50 UTCJul 8, 03:30 UTC40m
2026-07-08 BKP1196 - Jul 8, 01:35 UTCJul 8, 02:05 UTC30m
2026-07-07 BKP1197 - Jul 7, 22:45 UTCJul 7, 23:20 UTC35m
2026-07-07 BKP908 SAI → BKK Jul 7, 13:25 UTCJul 7, 14:00 UTC35m
2026-07-07 BKP907 - Jul 7, 11:00 UTCJul 7, 11:35 UTC35m

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

Mode-S 88434B frequently asked

What is Mode-S code 88434B?
88434B is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-PZK.
Where is Mode-S 88434B registered?
Mode-S code 88434B is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 88434B broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 88434B, octal 42041513, decimal 8,930,123.
What flights does 88434B operate?
Mode-S 88434B has broadcast 20 distinct callsigns, including BKP936, BKP150, BKP935, BKP176, BKP127.