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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
482
Distinct callsigns
20
Country
CH
Last broadcast
15h ago

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
SWR1KA - 9 2026-07-10
SWR736 - 8 2026-07-09
SWR2CY - 7 2026-07-09
SWR9TV - 6 2026-07-09
SWR9TC Swiss International Air Lines 6 2026-05-30
SWR59K Swiss International Air Lines 6 2026-07-03
SWR4EY - 6 2026-07-03
SWR3WG - 6 2026-07-09
SWR32F - 6 2026-06-26
SWR2EZ - 6 2026-07-09
SWR28L - 6 2026-07-03
SWR24V Swiss International Air Lines 6 2026-06-04
SWR104C - 6 2026-07-09
SWR8YB - 5 2026-06-26
SWR8CM - 5 2026-07-01
SWR5BW - 5 2026-07-11
SWR57B - 5 2026-07-04
SWR4TH - 5 2026-07-05
SWR47W - 5 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SWR15Y BRU → ZRH Jul 13, 14:55 UTCJul 13, 15:40 UTC45m
2026-07-13 SWR74D - Jul 13, 12:30 UTCJul 13, 13:35 UTC1h 5m
2026-07-13 SWR5MW - Jul 13, 08:40 UTCJul 13, 10:45 UTC2h 5m
2026-07-13 SWR89T - Jul 13, 05:31 UTCJul 13, 06:45 UTC1h 15m
2026-07-12 SWR9GD - Jul 12, 19:10 UTCJul 12, 20:50 UTC1h 40m
2026-07-12 SWR3WZ ZRH → WAW Jul 12, 16:25 UTCJul 12, 18:05 UTC1h 40m
2026-07-12 SWR4EA NCE → ZRH Jul 12, 10:20 UTCJul 12, 11:10 UTC50m
2026-07-12 SWR564 - Jul 12, 07:01 UTCJul 12, 08:01 UTC1h 0m
2026-07-12 SWR12K PRG → ZRH Jul 12, 04:30 UTCJul 12, 05:30 UTC1h 0m
2026-07-11 SWR5BW - Jul 11, 20:30 UTCJul 11, 21:30 UTC1h 0m
2026-07-11 SWR204K MXP → ZRH Jul 11, 18:30 UTCJul 11, 19:05 UTC35m
2026-07-11 SWR7WA ZRH → MXP Jul 11, 16:40 UTCJul 11, 17:15 UTC35m
2026-07-11 EDW21W - Jul 11, 09:30 UTCJul 11, 10:55 UTC1h 25m
2026-07-11 EDW23X - Jul 11, 06:05 UTCJul 11, 07:20 UTC1h 15m
2026-07-11 SWR2069 OPO → ZRH Jul 11, 02:30 UTCJul 11, 04:35 UTC2h 5m
2026-07-10 SWR2068 ZRH → OPO Jul 10, 21:25 UTCJul 10, 23:45 UTC2h 20m
2026-07-10 SWR259T - Jul 10, 19:15 UTCJul 10, 20:25 UTC1h 10m
2026-07-10 SWR9BL - Jul 10, 16:45 UTCJul 10, 17:50 UTC1h 5m
2026-07-10 SWR1KA - Jul 10, 13:25 UTCJul 10, 14:20 UTC55m
2026-07-10 SWR5HX ZRH → PRG Jul 10, 11:00 UTCJul 10, 12:00 UTC1h 0m
2026-07-10 SWR9MH STR → ZRH Jul 10, 08:45 UTCJul 10, 09:20 UTC35m
2026-07-10 SWR1FP - Jul 10, 07:30 UTCJul 10, 07:55 UTC25m
2026-07-10 SWR47W AMS → ZRH Jul 10, 05:20 UTCJul 10, 06:25 UTC1h 5m
2026-07-09 SWR736 - Jul 9, 18:50 UTCJul 9, 19:55 UTC1h 5m
2026-07-09 SWR2EZ GVA → ZRH Jul 9, 17:15 UTCJul 9, 17:45 UTC30m
2026-07-09 SWR3CX - Jul 9, 15:40 UTCJul 9, 16:15 UTC35m
2026-07-09 SWISS GVA → ZRH Jul 9, 12:55 UTCJul 9, 13:25 UTC30m
2026-07-09 SWR9TV FRA → GVA Jul 9, 10:55 UTCJul 9, 11:50 UTC55m
2026-07-09 SWR2CY - Jul 9, 08:30 UTCJul 9, 09:25 UTC55m
2026-07-09 SWR3WG FRA → GVA Jul 9, 06:30 UTCJul 9, 07:20 UTC50m
2026-07-09 SWR104C GVA → FRA Jul 9, 04:20 UTCJul 9, 05:20 UTC1h 0m
2026-07-08 SWR357 - Jul 8, 19:35 UTCJul 8, 20:50 UTC1h 15m
2026-07-08 SWR316T GVA → LHR Jul 8, 16:40 UTCJul 8, 17:55 UTC1h 15m
2026-07-08 SWR218L - Jul 8, 11:10 UTCJul 8, 12:15 UTC1h 5m
2026-07-08 SWR35L GVA → OLB Jul 8, 09:00 UTCJul 8, 10:35 UTC1h 35m
2026-07-07 SWR8KM FAO → GVA Jul 7, 17:40 UTCJul 7, 20:00 UTC2h 20m
2026-07-07 SWR273M - Jul 7, 14:15 UTCJul 7, 16:30 UTC2h 15m
2026-07-07 SWR237E - Jul 7, 08:30 UTCJul 7, 10:20 UTC1h 50m
2026-07-07 SWR9DF - Jul 7, 05:05 UTCJul 7, 06:50 UTC1h 45m
2026-07-06 SWR218Q VLC → GVA Jul 6, 19:35 UTCJul 6, 21:10 UTC1h 35m
2026-07-06 SWR2HV GVA → VLC Jul 6, 16:40 UTCJul 6, 18:10 UTC1h 30m
2026-07-06 SWR13Y - Jul 6, 14:05 UTCJul 6, 15:10 UTC1h 5m
2026-07-06 SWR29K GVA → LHR Jul 6, 11:25 UTCJul 6, 13:00 UTC1h 35m
2026-07-06 SWR8MV LHR → GVA Jul 6, 08:40 UTCJul 6, 09:50 UTC1h 10m
2026-07-06 SWR49M GVA → LHR Jul 6, 06:05 UTCJul 6, 07:25 UTC1h 20m
2026-07-05 SWR4TH - Jul 5, 20:00 UTCJul 5, 20:35 UTC35m
2026-07-05 SWR4TH ZRH → ZRH Jul 5, 18:35 UTCJul 5, 18:55 UTC20m
2026-07-05 SWR2EZ GVA → ZRH Jul 5, 17:45 UTCJul 5, 18:20 UTC35m
2026-07-05 SWR3CX - Jul 5, 15:45 UTCJul 5, 16:20 UTC35m
2026-07-05 SWR1KA - Jul 5, 13:40 UTCJul 5, 14:35 UTC55m

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, SWR1KA, SWR736, SWR2CY, SWR9TV.