sensors Mode-S transponder

4B1E69

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-LNL · PIPER PA-31T2-620 Cheyenne 2

Hex
4B1E69
Octal
22617151
Decimal
4,922,985
Country
CH
Tail
HB-LNL
Type
PAY2
No current signal · last broadcast 1d ago
Flights observed
33
Distinct callsigns
1
Country
CH
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4B1E69.

Country allocation

The ICAO 24-bit address 4B1E69 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
HBLNL - 33 2026-07-26

Recent flights last 33

DateFlightRouteTakeoffLandingDuration
2026-07-26 HBLNL - Jul 26, 09:55 UTCJul 26, 10:55 UTC1h 0m
2026-07-24 HBLNL - Jul 24, 10:20 UTCJul 24, 13:15 UTC2h 55m
2026-07-24 HBLNL - Jul 24, 07:50 UTCJul 24, 08:45 UTC55m
2026-07-18 HBLNL - Jul 18, 05:05 UTCJul 18, 07:30 UTC2h 25m
2026-07-16 HBLNL - Jul 16, 08:55 UTCJul 16, 10:15 UTC1h 20m
2026-07-13 HBLNL - Jul 13, 09:35 UTCJul 13, 10:00 UTC25m
2026-07-13 HBLNL - Jul 13, 08:20 UTCJul 13, 08:45 UTC25m
2026-07-08 HBLNL - Jul 8, 13:50 UTCJul 8, 14:55 UTC1h 5m
2026-07-08 HBLNL - Jul 8, 06:15 UTCJul 8, 07:15 UTC1h 0m
2026-07-02 HBLNL - Jul 2, 11:00 UTCJul 2, 14:50 UTC3h 50m
2026-06-23 HBLNL - Jun 23, 07:15 UTCJun 23, 10:35 UTC3h 20m
2026-06-21 HBLNL - Jun 21, 16:04 UTCJun 21, 17:10 UTC1h 5m
2026-06-18 HBLNL - Jun 18, 14:35 UTCJun 18, 15:35 UTC1h 0m
2026-06-14 HBLNL - Jun 14, 15:05 UTCJun 14, 16:10 UTC1h 5m
2026-06-12 HBLNL - Jun 12, 14:55 UTCJun 12, 15:50 UTC55m
2026-06-04 HBLNL - Jun 4, 13:35 UTCJun 4, 13:50 UTC15m
2026-06-04 HBLNL - Jun 4, 06:25 UTCJun 4, 06:35 UTC10m
2026-05-31 HBLNL - May 31, 13:30 UTCMay 31, 14:30 UTC1h 0m
2026-05-29 HBLNL - May 29, 06:50 UTCMay 29, 07:40 UTC50m
2026-05-23 HBLNL - May 23, 16:20 UTCMay 23, 17:20 UTC1h 0m
2026-05-23 HBLNL - May 23, 14:30 UTCMay 23, 15:25 UTC55m
2026-05-23 HBLNL BRN → BRN May 23, 13:10 UTCMay 23, 13:20 UTC10m
2026-05-17 HBLNL - May 17, 14:50 UTCMay 17, 15:05 UTC15m
2026-05-17 HBLNL - May 17, 13:10 UTCMay 17, 14:10 UTC1h 0m
2026-05-13 HBLNL - May 13, 14:15 UTCMay 13, 15:15 UTC1h 0m
2026-05-03 HBLNL - May 3, 16:00 UTCMay 3, 17:00 UTC1h 0m
2026-04-30 HBLNL - Apr 30, 06:30 UTCApr 30, 07:20 UTC50m
2026-04-28 HBLNL - Apr 28, 11:50 UTCApr 28, 12:50 UTC1h 0m
2026-04-28 HBLNL - Apr 28, 06:15 UTCApr 28, 07:15 UTC1h 0m
2026-04-20 HBLNL - Apr 20, 07:20 UTCApr 20, 10:10 UTC2h 50m
2026-04-19 HBLNL - Apr 19, 15:20 UTCApr 19, 16:20 UTC1h 0m
2026-04-17 HBLNL - Apr 17, 15:20 UTCApr 17, 16:00 UTC40m
2026-04-17 HBLNL - Apr 17, 15:05 UTCApr 17, 15:15 UTC10m

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

Mode-S 4B1E69 frequently asked

What is Mode-S code 4B1E69?
4B1E69 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-LNL.
Where is Mode-S 4B1E69 registered?
Mode-S code 4B1E69 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1E69 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1E69, octal 22617151, decimal 4,922,985.
What flights does 4B1E69 operate?
Mode-S 4B1E69 has broadcast 1 distinct callsign, including HBLNL.