Apparatus

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sensors Mode-S transponder

4B1918

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JNC · BOEING 777-300ER

Hex
4B1918
Octal
22614430
Decimal
4,921,624
Country
CH
Tail
HB-JNC
Type
B77W
No current signal · last broadcast 4h ago
Flights observed
108
Distinct callsigns
18
Country
CH
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4B1918.

Country allocation

The ICAO 24-bit address 4B1918 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 18 distinct

Callsign Airline Flights Last seen
SWR176 Swiss International Air Lines 10 2026-05-14
SWR139 Swiss International Air Lines 10 2026-05-26
SWR138 Swiss International Air Lines 10 2026-05-26
SWR65 Swiss International Air Lines 8 2026-05-13
SWR40 Swiss International Air Lines 8 2026-05-20
SWR177 Swiss International Air Lines 8 2026-05-15
SWR41G Swiss International Air Lines 7 2026-05-21
SWR161 Swiss International Air Lines 7 2026-04-28
SWR93 Swiss International Air Lines 6 2026-05-29
SWR92 Swiss International Air Lines 6 2026-05-28
SWR64E Swiss International Air Lines 5 2026-05-12
SWR160 Swiss International Air Lines 5 2026-04-27
SWR39 Swiss International Air Lines 4 2026-05-25
SWR35G Swiss International Air Lines 4 2026-05-24
SWR181 Swiss International Air Lines 4 2026-05-28
SWR180 Swiss International Air Lines 4 2026-05-27
SWR9G Swiss International Air Lines 1 2026-05-17
SWR8T Swiss International Air Lines 1 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SWR93 GRU → ZRH May 29, 22:10 UTCMay 29, 22:35 UTC25m
2026-05-28 SWR92 ZRH → GRU May 28, 21:10 UTCMay 29, 08:20 UTC11h 10m
2026-05-28 SWR181 BKK → ZRH May 28, 06:05 UTCMay 28, 17:45 UTC11h 40m
2026-05-27 SWR180 ZRH → BKK May 27, 16:25 UTCMay 28, 02:20 UTC9h 55m
2026-05-26 SWR139 HKG → ZRH May 26, 21:00 UTCMay 27, 04:09 UTC7h 10m
2026-05-26 SWR139 HKG → ZRH May 26, 15:45 UTCMay 26, 16:00 UTC15m
2026-05-26 SWR138 ZRH → HKG May 26, 07:55 UTCMay 26, 08:39 UTC45m
2026-05-25 SWR138 ZRH → HKG May 25, 20:55 UTCMay 26, 05:54 UTC9h 0m
2026-05-25 SWR39 SFO → ZRH May 25, 02:50 UTCMay 25, 13:25 UTC10h 35m
2026-05-24 SWR35G ZRH → SFO May 24, 12:00 UTCMay 24, 23:30 UTC11h 30m
2026-05-23 SWR93 GRU → ZRH May 23, 21:45 UTCMay 24, 08:40 UTC10h 55m
2026-05-23 SWR93 GRU → ZRH May 23, 16:45 UTCMay 23, 18:50 UTC2h 5m
2026-05-23 SWR92 ZRH → GRU May 23, 11:10 UTCMay 23, 13:45 UTC2h 35m
2026-05-22 SWR92 ZRH → GRU May 22, 21:15 UTCMay 23, 08:30 UTC11h 14m
2026-05-22 SWR181 BKK → ZRH May 22, 06:20 UTCMay 22, 17:30 UTC11h 10m
2026-05-21 SWR180 ZRH → BKK May 21, 16:30 UTCMay 22, 03:00 UTC10h 30m
2026-05-21 SWR41G LAX → ZRH May 21, 03:00 UTCMay 21, 13:15 UTC10h 15m
2026-05-20 SWR40 ZRH → LAX May 20, 11:40 UTCMay 20, 23:15 UTC11h 35m
2026-05-19 SWR93 GRU → ZRH May 19, 22:10 UTCMay 20, 09:00 UTC10h 51m
2026-05-18 SWR92 ZRH → GRU May 18, 21:05 UTCMay 19, 08:15 UTC11h 10m
2026-05-18 SWR41G LAX → ZRH May 18, 02:55 UTCMay 18, 13:10 UTC10h 15m
2026-05-17 SWR40 ZRH → LAX May 17, 11:45 UTCMay 17, 22:55 UTC11h 10m
2026-05-17 SWR9G ORD → ZRH May 17, 01:15 UTCMay 17, 09:00 UTC7h 45m
2026-05-16 SWR8T ZRH → ORD May 16, 13:25 UTCMay 16, 22:20 UTC8h 54m
2026-05-15 SWR177 SIN → ZRH May 15, 15:55 UTCMay 16, 04:25 UTC12h 30m
2026-05-14 SWR176 ZRH → SIN May 14, 21:10 UTCMay 15, 08:55 UTC11h 45m
2026-05-14 SWR41G LAX → ZRH May 14, 02:45 UTCMay 14, 13:35 UTC10h 50m
2026-05-13 SWR40 ZRH → LAX May 13, 12:05 UTCMay 13, 23:50 UTC11h 45m
2026-05-13 SWR65 MIA → ZRH May 13, 00:25 UTCMay 13, 08:55 UTC8h 30m
2026-05-12 SWR64E ZRH → MIA May 12, 11:20 UTCMay 12, 21:10 UTC9h 50m
2026-05-12 SWR65 MIA → ZRH May 12, 03:10 UTCMay 12, 08:45 UTC5h 35m
2026-05-11 SWR64E ZRH → MIA May 11, 11:55 UTCMay 11, 21:25 UTC9h 31m
2026-05-11 SWR65 MIA → ZRH May 11, 00:19 UTCMay 11, 09:20 UTC9h 0m
2026-05-10 SWR64E ZRH → MIA May 10, 11:25 UTCMay 10, 21:00 UTC9h 35m
2026-05-10 SWR65 MIA → ZRH May 10, 00:00 UTCMay 10, 08:54 UTC8h 55m
2026-05-09 SWR64E ZRH → MIA May 9, 11:30 UTCMay 9, 21:19 UTC9h 50m
2026-05-09 SWR139 HKG → ZRH May 9, 01:20 UTCMay 9, 04:50 UTC3h 30m
2026-05-08 SWR139 HKG → ZRH May 8, 16:10 UTCMay 8, 16:30 UTC20m
2026-05-08 SWR138 ZRH → HKG May 8, 07:29 UTCMay 8, 07:59 UTC30m
2026-05-07 SWR138 ZRH → HKG May 7, 20:50 UTCMay 8, 05:14 UTC8h 25m
2026-05-07 SWR39 SFO → ZRH May 7, 02:50 UTCMay 7, 13:40 UTC10h 50m
2026-05-06 SWR35G ZRH → SFO May 6, 11:40 UTCMay 6, 22:45 UTC11h 4m
2026-05-05 SWR177 SIN → ZRH May 5, 16:00 UTCMay 6, 04:10 UTC12h 10m
2026-05-04 SWR176 ZRH → SIN May 4, 20:55 UTCMay 5, 08:35 UTC11h 40m
2026-05-04 SWR39 SFO → ZRH May 4, 02:54 UTCMay 4, 13:40 UTC10h 45m
2026-05-03 SWR35G ZRH → SFO May 3, 11:45 UTCMay 3, 23:25 UTC11h 40m
2026-05-02 SWR93 GRU → ZRH May 2, 21:55 UTCMay 3, 08:20 UTC10h 24m
2026-05-02 SWR93 GRU → ZRH May 2, 16:40 UTCMay 2, 18:50 UTC2h 10m
2026-05-02 SWR92 GRU → EZE May 2, 11:05 UTCMay 2, 13:45 UTC2h 40m
2026-05-01 SWR92 GRU → EZE May 1, 21:25 UTCMay 2, 08:45 UTC11h 21m

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

Mode-S 4B1918 frequently asked

What is Mode-S code 4B1918?
4B1918 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JNC.
Where is Mode-S 4B1918 registered?
Mode-S code 4B1918 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1918 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1918, octal 22614430, decimal 4,921,624.
What flights does 4B1918 operate?
Mode-S 4B1918 has broadcast 18 distinct callsigns, including SWR176, SWR139, SWR138, SWR65, SWR40.