Apparatus

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sensors Mode-S transponder

4B1805

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JCN · AIRBUS A220-300

Hex
4B1805
Octal
22614005
Decimal
4,921,349
Country
CH
Tail
HB-JCN
Type
BCS3
Transponder active on ground
Flights observed
554
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 20:30 UTC

Last known position

Most recent position reported by Mode-S 4B1805.

Country allocation

The ICAO 24-bit address 4B1805 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
SWR5HX - 15 2026-07-10
SWR736 Swiss International Air Lines 11 2026-07-22
SWR1KA - 9 2026-07-10
SWR9TC - 7 2026-07-14
SWR51K Swiss International Air Lines 7 2026-07-24
SWR3CX - 7 2026-07-22
SWR2EZ - 7 2026-07-15
SWR2CY - 7 2026-07-09
SWR9TV - 6 2026-07-09
SWR8CM Swiss International Air Lines 6 2026-07-25
SWR5BW Swiss International Air Lines 6 2026-07-18
SWR59K Swiss International Air Lines 6 2026-07-03
SWR4EY - 6 2026-07-03
SWR47W Swiss International Air Lines 6 2026-07-23
SWR3WG - 6 2026-07-09
SWR3BP - 6 2026-07-17
SWR32F - 6 2026-06-26
SWR2VC Swiss International Air Lines 6 2026-07-25
SWR28L - 6 2026-07-03
SWR24V Swiss International Air Lines 6 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWR8YP BEG → ZRH Jul 26, 18:35 UTCJul 26, 20:10 UTC1h 35m
2026-07-26 SWR2DK ZRH → BEG Jul 26, 15:50 UTCJul 26, 17:20 UTC1h 30m
2026-07-26 SWR2DK ZRH → BEG Jul 26, 13:20 UTCJul 26, 14:05 UTC45m
2026-07-26 SWR1ZM ZRH → VCE Jul 26, 11:35 UTCJul 26, 12:15 UTC40m
2026-07-26 SWR431 LGW → ZRH Jul 26, 09:10 UTCJul 26, 10:25 UTC1h 15m
2026-07-26 SWR5YD ZRH → LGW Jul 26, 06:20 UTCJul 26, 07:35 UTC1h 16m
2026-07-25 SWR8CM AMS → ZRH Jul 25, 18:35 UTCJul 25, 19:35 UTC1h 0m
2026-07-25 SWR2VC ZRH → AMS Jul 25, 16:15 UTCJul 25, 17:25 UTC1h 10m
2026-07-25 SWR4KW ZRH → BCN Jul 25, 14:05 UTCJul 25, 15:05 UTC1h 0m
2026-07-25 SWR8YE ZRH → AMS Jul 25, 11:40 UTCJul 25, 12:45 UTC1h 5m
2026-07-25 SWR2WX CPH → ZRH Jul 25, 08:55 UTCJul 25, 10:30 UTC1h 35m
2026-07-25 SWR193T ZRH → CPH Jul 25, 06:25 UTCJul 25, 07:55 UTC1h 30m
2026-07-24 SWR7DC BRU → ZRH Jul 24, 17:55 UTCJul 24, 18:50 UTC55m
2026-07-24 SWR8QE ZRH → BRU Jul 24, 15:50 UTCJul 24, 16:40 UTC50m
2026-07-24 SWR4LT BUD → ZRH Jul 24, 13:15 UTCJul 24, 14:30 UTC1h 15m
2026-07-24 SWR51K ZRH → LYS Jul 24, 10:45 UTCJul 24, 12:00 UTC1h 15m
2026-07-23 SWR122C DUB → ZRH Jul 23, 17:50 UTCJul 23, 19:40 UTC1h 50m
2026-07-23 SWR404 ZRH → DUB Jul 23, 14:50 UTCJul 23, 16:40 UTC1h 50m
2026-07-23 SWR5GT FCO → ZRH Jul 23, 11:15 UTCJul 23, 12:50 UTC1h 35m
2026-07-23 SWR2EP BCN → ZRH Jul 23, 08:20 UTCJul 23, 09:50 UTC1h 30m
2026-07-23 SWR47W AMS → ZRH Jul 23, 05:30 UTCJul 23, 06:25 UTC55m
2026-07-22 SWR736 ZRH → AMS Jul 22, 19:00 UTCJul 22, 20:05 UTC1h 5m
2026-07-22 SWR736 ZRH → AMS Jul 22, 17:05 UTCJul 22, 17:45 UTC40m
2026-07-22 SWR3CX ZRH → GVA Jul 22, 15:30 UTCJul 22, 16:00 UTC30m
2026-07-22 SWR324G - Jul 22, 13:20 UTCJul 22, 14:20 UTC1h 0m
2026-07-22 SWR9CK - Jul 22, 11:20 UTCJul 22, 12:20 UTC1h 0m
2026-07-21 SWR4VZ BOD → ZRH Jul 21, 20:15 UTCJul 21, 20:30 UTC15m
2026-07-21 SWR4VZ BOD → ZRH Jul 21, 18:40 UTCJul 21, 19:55 UTC1h 15m
2026-07-21 SWR331F ZRH → BOD Jul 21, 16:15 UTCJul 21, 17:35 UTC1h 20m
2026-07-21 SWR4LT - Jul 21, 13:05 UTCJul 21, 14:30 UTC1h 25m
2026-07-21 SWR51K ZRH → LYS Jul 21, 11:00 UTCJul 21, 12:05 UTC1h 5m
2026-07-21 SWR51K ZRH → LYS Jul 21, 08:20 UTCJul 21, 09:15 UTC55m
2026-07-21 SWR883P ZRH → AMS Jul 21, 05:45 UTCJul 21, 06:45 UTC1h 0m
2026-07-20 SWR8YP BEG → ZRH Jul 20, 18:55 UTCJul 20, 20:35 UTC1h 40m
2026-07-20 SWR2DK ZRH → BEG Jul 20, 16:30 UTCJul 20, 17:50 UTC1h 20m
2026-07-20 SWR9WE PMO → ZRH Jul 20, 13:20 UTCJul 20, 15:05 UTC1h 45m
2026-07-20 SWR56Z ZRH → PMO Jul 20, 10:40 UTCJul 20, 12:15 UTC1h 35m
2026-07-20 SWR339H LUX → ZRH Jul 20, 08:50 UTCJul 20, 09:30 UTC40m
2026-07-20 SWR5CV ZRH → LUX Jul 20, 06:55 UTCJul 20, 07:35 UTC40m
2026-07-19 SWR1213 OSL → ZRH Jul 19, 15:45 UTCJul 19, 17:45 UTC2h 0m
2026-07-19 SWR1212 - Jul 19, 12:30 UTCJul 19, 14:45 UTC2h 15m
2026-07-19 SWR731C HAM → ZRH Jul 19, 09:00 UTCJul 19, 10:05 UTC1h 5m
2026-07-19 SWR92W - Jul 19, 06:40 UTCJul 19, 07:50 UTC1h 10m
2026-07-19 SWR12K LHR → GVA Jul 19, 04:30 UTCJul 19, 05:35 UTC1h 5m
2026-07-18 SWR5BW ZRH → PRG Jul 18, 20:40 UTCJul 18, 21:35 UTC55m
2026-07-18 SWR204K MXP → ZRH Jul 18, 17:35 UTCJul 18, 18:15 UTC40m
2026-07-18 SWR7WA - Jul 18, 16:05 UTCJul 18, 16:35 UTC30m
2026-07-18 SWR868L BEG → ZRH Jul 18, 13:15 UTCJul 18, 14:45 UTC1h 30m
2026-07-18 SWR4WG ZRH → BEG Jul 18, 10:35 UTCJul 18, 12:00 UTC1h 25m
2026-07-17 SWR1CW - Jul 17, 18:29 UTCJul 17, 20:04 UTC1h 35m

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

Mode-S 4B1805 frequently asked

What is Mode-S code 4B1805?
4B1805 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JCN.
Where is Mode-S 4B1805 registered?
Mode-S code 4B1805 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1805 broadcasting right now?
Mode-S 4B1805 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1805, octal 22614005, decimal 4,921,349.
What flights does 4B1805 operate?
Mode-S 4B1805 has broadcast 20 distinct callsigns, including SWR5HX, SWR736, SWR1KA, SWR9TC, SWR51K.