Apparatus

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sensors Mode-S transponder

4B18E9

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JLH · BOMBARDIER BD-100 Challenger 350

Hex
4B18E9
Octal
22614351
Decimal
4,921,577
Country
CH
Tail
HB-JLH
Type
CL35
No current signal · last broadcast 2h ago
Flights observed
84
Distinct callsigns
1
Country
CH
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4B18E9.

Country allocation

The ICAO 24-bit address 4B18E9 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 1 distinct

Callsign Airline Flights Last seen
HBJLH - 84 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 HBJLH BCN → STR Jul 18, 15:50 UTCJul 18, 17:15 UTC1h 25m
2026-07-18 HBJLH STR → BCN Jul 18, 11:35 UTCJul 18, 13:10 UTC1h 35m
2026-07-17 HBJLH BCN → STR Jul 17, 14:04 UTCJul 17, 15:25 UTC1h 20m
2026-07-16 HBJLH STR → BCN Jul 16, 08:10 UTCJul 16, 09:50 UTC1h 40m
2026-07-15 HBJLH BCN → STR Jul 15, 16:20 UTCJul 15, 17:40 UTC1h 20m
2026-07-15 HBJLH STR → BCN Jul 15, 13:15 UTCJul 15, 15:05 UTC1h 50m
2026-07-14 HBJLH - Jul 14, 14:00 UTCJul 14, 15:10 UTC1h 10m
2026-07-13 HBJLH STR → BUD Jul 13, 14:20 UTCJul 13, 15:20 UTC1h 0m
2026-07-10 HBJLH QGY → STR Jul 10, 10:25 UTCJul 10, 11:30 UTC1h 5m
2026-07-10 HBJLH - Jul 10, 05:05 UTCJul 10, 06:05 UTC1h 0m
2026-07-09 HBJLH - Jul 9, 11:25 UTCJul 9, 13:50 UTC2h 25m
2026-07-09 HBJLH - Jul 9, 05:50 UTCJul 9, 07:20 UTC1h 30m
2026-07-08 HBJLH LCY → STR Jul 8, 14:15 UTCJul 8, 15:25 UTC1h 10m
2026-07-08 HBJLH STR → LCY Jul 8, 12:05 UTCJul 8, 13:20 UTC1h 15m
2026-07-07 HBJLH BUD → STR Jul 7, 16:00 UTCJul 7, 17:10 UTC1h 10m
2026-07-07 HBJLH STR → BUD Jul 7, 05:35 UTCJul 7, 06:40 UTC1h 5m
2026-07-03 HBJLH BUD → STR Jul 3, 16:50 UTCJul 3, 18:00 UTC1h 10m
2026-07-02 HBJLH - Jul 2, 06:41 UTCJul 2, 07:05 UTC24m
2026-07-02 HBJLH - Jul 2, 04:35 UTCJul 2, 05:55 UTC1h 20m
2026-06-29 HBJLH - Jun 29, 13:30 UTCJun 29, 15:14 UTC1h 45m
2026-06-29 HBJLH - Jun 29, 06:50 UTCJun 29, 07:25 UTC35m
2026-06-29 HBJLH - Jun 29, 04:39 UTCJun 29, 06:09 UTC1h 30m
2026-06-26 HBJLH LIN → STR Jun 26, 10:44 UTCJun 26, 11:20 UTC35m
2026-06-26 HBJLH STR → LIN Jun 26, 06:15 UTCJun 26, 06:54 UTC40m
2026-06-23 HBJLH BER → STR Jun 23, 19:50 UTCJun 23, 20:40 UTC50m
2026-06-23 HBJLH STR → BER Jun 23, 14:49 UTCJun 23, 15:40 UTC50m
2026-06-23 HBJLH BUD → STR Jun 23, 08:15 UTCJun 23, 09:24 UTC1h 10m
2026-06-18 HBJLH STR → BUD Jun 18, 05:40 UTCJun 18, 06:40 UTC1h 0m
2026-06-17 HBJLH - Jun 17, 18:50 UTCJun 17, 19:45 UTC55m
2026-06-17 HBJLH - Jun 17, 04:55 UTCJun 17, 05:50 UTC55m
2026-06-12 HBJLH BER → STR Jun 12, 14:01 UTCJun 12, 14:55 UTC55m
2026-06-12 HBJLH STR → BER Jun 12, 11:20 UTCJun 12, 12:20 UTC1h 0m
2026-06-11 HBJLH - Jun 11, 16:25 UTCJun 11, 17:10 UTC45m
2026-06-11 HBJLH STR → BER Jun 11, 14:45 UTCJun 11, 15:50 UTC1h 5m
2026-06-11 HBJLH BER → STR Jun 11, 13:00 UTCJun 11, 13:50 UTC50m
2026-06-11 HBJLH BWE → BER Jun 11, 10:55 UTCJun 11, 11:30 UTC35m
2026-06-10 HBJLH - Jun 10, 09:05 UTCJun 10, 09:35 UTC30m
2026-06-10 HBJLH STR → BER Jun 10, 07:25 UTCJun 10, 08:15 UTC50m
2026-06-09 HBJLH BER → STR Jun 9, 17:10 UTCJun 9, 18:05 UTC55m
2026-06-09 HBJLH - Jun 9, 15:05 UTCJun 9, 15:50 UTC45m
2026-06-09 HBJLH STR → LBG Jun 9, 06:35 UTCJun 9, 07:30 UTC55m
2026-06-02 HBJLH - Jun 2, 16:05 UTCJun 2, 18:15 UTC2h 10m
2026-06-02 HBJLH STR → OPO Jun 2, 05:00 UTCJun 2, 07:25 UTC2h 25m
2026-05-29 HBJLH - May 29, 15:30 UTCMay 29, 17:00 UTC1h 30m
2026-05-29 HBJLH - May 29, 04:35 UTCMay 29, 06:05 UTC1h 30m
2026-05-28 HBJLH - May 28, 14:40 UTCMay 28, 15:25 UTC45m
2026-05-28 HBJLH STR → DRS May 28, 05:50 UTCMay 28, 06:30 UTC40m
2026-05-26 HBJLH - May 26, 15:05 UTCMay 26, 15:49 UTC45m
2026-05-26 HBJLH STR → DRS May 26, 05:00 UTCMay 26, 05:40 UTC40m
2026-05-22 HBJLH STR → STR May 22, 08:55 UTCMay 22, 10:45 UTC1h 50m

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

Mode-S 4B18E9 frequently asked

What is Mode-S code 4B18E9?
4B18E9 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JLH.
Where is Mode-S 4B18E9 registered?
Mode-S code 4B18E9 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B18E9 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B18E9, octal 22614351, decimal 4,921,577.
What flights does 4B18E9 operate?
Mode-S 4B18E9 has broadcast 1 distinct callsign, including HBJLH.