Apparatus

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sensors Mode-S transponder

4B193A

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JOK · AIRBUS A-320

Hex
4B193A
Octal
22614472
Decimal
4,921,658
Country
CH
Tail
HB-JOK
Type
A320
No current signal · last broadcast 5h ago
Flights observed
437
Distinct callsigns
20
Country
CH
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 4B193A.

Country allocation

The ICAO 24-bit address 4B193A falls within the block assigned to Switzerland (CH) by ICAO Annex 10, Volume III. Every aircraft registered in Switzerland 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
CSW3PR - 38 2026-07-14
CSW2KP - 36 2026-07-14
CSW1PM - 33 2026-07-14
CSW1EP - 32 2026-07-14
CSW631 - 28 2026-07-13
CSW630 - 28 2026-07-13
CSW1PR - 28 2026-07-08
CSW6KP - 27 2026-07-14
CSW615 - 22 2026-07-09
ENT2621 DAT Enterprise Limited 21 2026-07-11
ENT2620 DAT Enterprise Limited 21 2026-07-11
CSW612 - 19 2026-07-10
CSW129 Worldwide Air Charter Systems 14 2026-05-26
CSW445 - 13 2026-07-13
CSW444 - 12 2026-07-03
CSW128 Worldwide Air Charter Systems 10 2026-05-19
CSW639 - 6 2026-07-12
CSW638 - 6 2026-07-12
CSW610 - 6 2026-07-10
CSW447 - 5 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CSW3PR - Jul 14, 17:45 UTCJul 14, 19:25 UTC1h 40m
2026-07-14 CSW2KP - Jul 14, 15:05 UTCJul 14, 16:25 UTC1h 20m
2026-07-14 CSW1PM - Jul 14, 12:25 UTCJul 14, 13:55 UTC1h 30m
2026-07-14 CSW1EP - Jul 14, 09:55 UTCJul 14, 11:20 UTC1h 25m
2026-07-14 CSW5601 - Jul 14, 06:45 UTCJul 14, 08:45 UTC2h 0m
2026-07-14 CSW6KP - Jul 14, 04:05 UTCJul 14, 05:25 UTC1h 20m
2026-07-13 CSW631 - Jul 13, 18:50 UTCJul 13, 20:35 UTC1h 45m
2026-07-13 CSW630 - Jul 13, 15:55 UTCJul 13, 17:15 UTC1h 20m
2026-07-13 CSW445 ZRH → ZRH Jul 13, 04:55 UTCJul 13, 14:25 UTC9h 30m
2026-07-12 CSW1PM - Jul 12, 15:40 UTCJul 12, 17:10 UTC1h 30m
2026-07-12 CSW1EP - Jul 12, 12:35 UTCJul 12, 14:10 UTC1h 35m
2026-07-12 CSW639 - Jul 12, 09:30 UTCJul 12, 11:15 UTC1h 45m
2026-07-12 CSW638 - Jul 12, 06:30 UTCJul 12, 08:05 UTC1h 35m
2026-07-11 CSW3PR - Jul 11, 18:30 UTCJul 11, 20:05 UTC1h 35m
2026-07-11 ENT2621 STR → STR Jul 11, 15:35 UTCJul 11, 17:15 UTC1h 40m
2026-07-11 ENT2620 STR → STR Jul 11, 10:00 UTCJul 11, 14:25 UTC4h 25m
2026-07-11 CSW611 - Jul 11, 06:45 UTCJul 11, 08:30 UTC1h 45m
2026-07-11 CSW6KP - Jul 11, 04:05 UTCJul 11, 05:25 UTC1h 20m
2026-07-10 CSW3PR - Jul 10, 19:20 UTCJul 10, 21:05 UTC1h 46m
2026-07-10 ENT2621 STR → STR Jul 10, 16:40 UTCJul 10, 18:00 UTC1h 20m
2026-07-10 ENT2620 STR → STR Jul 10, 13:10 UTCJul 10, 14:45 UTC1h 35m
2026-07-10 CSW612 - Jul 10, 10:20 UTCJul 10, 11:50 UTC1h 30m
2026-07-10 CSW5611 - Jul 10, 06:45 UTCJul 10, 08:30 UTC1h 45m
2026-07-10 CSW610 - Jul 10, 04:10 UTCJul 10, 05:35 UTC1h 25m
2026-07-09 CSW615 - Jul 9, 19:35 UTCJul 9, 21:20 UTC1h 45m
2026-07-09 ENT2621 STR → STR Jul 9, 17:10 UTCJul 9, 18:25 UTC1h 15m
2026-07-09 ENT2620 STR → STR Jul 9, 14:30 UTCJul 9, 16:10 UTC1h 40m
2026-07-09 CSW620 - Jul 9, 11:40 UTCJul 9, 13:05 UTC1h 25m
2026-07-09 CSW5621 - Jul 9, 08:40 UTCJul 9, 10:35 UTC1h 55m
2026-07-09 CSW606 - Jul 9, 06:00 UTCJul 9, 07:20 UTC1h 20m
2026-07-08 CSW631 - Jul 8, 19:05 UTCJul 8, 21:00 UTC1h 55m
2026-07-08 CSW630 - Jul 8, 16:20 UTCJul 8, 17:45 UTC1h 25m
2026-07-08 CSW1PM - Jul 8, 12:50 UTCJul 8, 14:25 UTC1h 35m
2026-07-08 CSW1EP - Jul 8, 10:00 UTCJul 8, 11:20 UTC1h 20m
2026-07-08 CSW1PR - Jul 8, 07:00 UTCJul 8, 08:55 UTC1h 55m
2026-07-08 CSW610 - Jul 8, 04:20 UTCJul 8, 05:45 UTC1h 25m
2026-07-07 CSW615 - Jul 7, 18:55 UTCJul 7, 20:40 UTC1h 45m
2026-07-07 ENT2621 STR → STR Jul 7, 16:10 UTCJul 7, 17:35 UTC1h 25m
2026-07-07 ENT2620 STR → STR Jul 7, 13:00 UTCJul 7, 14:40 UTC1h 40m
2026-07-07 CSW612 - Jul 7, 09:55 UTCJul 7, 11:20 UTC1h 25m
2026-07-07 CSW5611 - Jul 7, 07:00 UTCJul 7, 08:45 UTC1h 45m
2026-07-07 CSW610 - Jul 7, 04:20 UTCJul 7, 05:50 UTC1h 30m
2026-07-06 CSW615 - Jul 6, 18:20 UTCJul 6, 20:05 UTC1h 45m
2026-07-06 CSW2KP - Jul 6, 15:35 UTCJul 6, 17:00 UTC1h 25m
2026-07-06 CSW1PM - Jul 6, 12:50 UTCJul 6, 14:25 UTC1h 35m
2026-07-06 CSW1EP - Jul 6, 09:50 UTCJul 6, 11:15 UTC1h 25m
2026-07-06 CSW1PR - Jul 6, 06:55 UTCJul 6, 08:40 UTC1h 45m
2026-07-06 CSW610 - Jul 6, 04:15 UTCJul 6, 05:35 UTC1h 20m
2026-07-05 CSW615 - Jul 5, 19:10 UTCJul 5, 20:50 UTC1h 40m
2026-07-05 CSW614 ZRH → PRN Jul 5, 16:25 UTCJul 5, 17:50 UTC1h 25m

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 HB-JOK page for operator, model, and routing details .

Mode-S 4B193A frequently asked

What is Mode-S code 4B193A?
4B193A is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JOK.
Where is Mode-S 4B193A registered?
Mode-S code 4B193A is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B193A broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B193A, octal 22614472, decimal 4,921,658.
What flights does 4B193A operate?
Mode-S 4B193A has broadcast 20 distinct callsigns, including CSW3PR, CSW2KP, CSW1PM, CSW1EP, CSW631.