Apparatus

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sensors Mode-S transponder

4B1884

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JHK · AIRBUS A-330-300

Hex
4B1884
Octal
22614204
Decimal
4,921,476
Country
CH
Tail
HB-JHK
Type
A333
Broadcasting now · callsign SWR18P · 36,000 ft
Flights observed
152
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 22:45 UTC

Current position

4B1884 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B1884 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
SWR4Y - 16 2026-07-18
SWR67G Swiss International Air Lines 15 2026-04-24
SWR52 Swiss International Air Lines 14 2026-07-17
SWR66C Swiss International Air Lines 13 2026-04-24
SWR18P Swiss International Air Lines 9 2026-07-16
SWR19C - 8 2026-07-17
SWR7C Swiss International Air Lines 6 2026-07-26
SWR6A Swiss International Air Lines 6 2026-07-26
SWR2647 - 6 2026-06-30
SWR2646 - 6 2026-06-30
SWR23A - 6 2026-07-08
SWR22D - 5 2026-07-08
SWR155 Swiss International Air Lines 5 2026-07-25
SWR72 - 4 2026-07-05
SWR3W - 4 2026-07-08
SWR2K - 4 2026-07-06
SWR14V - 4 2026-07-07
SWR146 Swiss International Air Lines 4 2026-07-24
SWR154 Swiss International Air Lines 3 2026-07-25
SWR147 Swiss International Air Lines 3 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWR7C ORD → ZRH Jul 26, 19:55 UTCJul 26, 22:45 UTC2h 50m
2026-07-26 SWR6A ZRH → ORD Jul 26, 08:25 UTCJul 26, 17:30 UTC9h 5m
2026-07-25 SWR155 BOM → ZRH Jul 25, 21:30 UTCJul 26, 04:20 UTC6h 50m
2026-07-25 SWR155 BOM → ZRH Jul 25, 19:35 UTCJul 25, 19:55 UTC20m
2026-07-25 SWR154 ZRH → BOM Jul 25, 08:20 UTCJul 25, 16:25 UTC8h 5m
2026-07-24 SWR147 DEL → ZRH Jul 24, 20:10 UTCJul 25, 04:20 UTC8h 10m
2026-07-24 SWR146 ZRH → DEL Jul 24, 10:50 UTCJul 24, 17:55 UTC7h 5m
2026-07-23 SWR7C ORD → ZRH Jul 23, 20:25 UTCJul 24, 04:20 UTC7h 55m
2026-07-23 SWR6A ZRH → ORD Jul 23, 08:15 UTCJul 23, 17:25 UTC9h 10m
2026-07-22 SWR155 BOM → ZRH Jul 22, 19:25 UTCJul 23, 04:15 UTC8h 50m
2026-07-22 SWR154 ZRH → BOM Jul 22, 11:10 UTCJul 22, 16:30 UTC5h 20m
2026-07-21 SWR81 YYZ → ZRH Jul 21, 21:10 UTCJul 22, 04:50 UTC7h 40m
2026-07-21 SWR80 ZRH → YYZ Jul 21, 08:40 UTCJul 21, 16:55 UTC8h 15m
2026-07-20 SWR7C ORD → ZRH Jul 20, 20:10 UTCJul 21, 04:20 UTC8h 10m
2026-07-20 SWR6A ZRH → ORD Jul 20, 08:15 UTCJul 20, 17:10 UTC8h 55m
2026-07-19 SWR7C ORD → ZRH Jul 19, 20:00 UTCJul 20, 04:20 UTC8h 20m
2026-07-19 SWR6A ZRH → ORD Jul 19, 08:05 UTCJul 19, 17:10 UTC9h 5m
2026-07-18 SWR4Y BOS → ZRH Jul 18, 02:14 UTCJul 18, 09:15 UTC7h 1m
2026-07-17 SWR52 ZRH → BOS Jul 17, 16:40 UTCJul 18, 00:04 UTC7h 25m
2026-07-17 SWR19C EWR → ZRH Jul 17, 02:59 UTCJul 17, 10:05 UTC7h 5m
2026-07-16 SWR18P ZRH → EWR Jul 16, 15:55 UTCJul 17, 00:14 UTC8h 20m
2026-07-16 SWR19C EWR → ZRH Jul 16, 04:10 UTCJul 16, 11:10 UTC7h 0m
2026-07-15 SWR18P ZRH → EWR Jul 15, 18:10 UTCJul 16, 02:05 UTC7h 55m
2026-07-14 SWR7C - Jul 14, 20:45 UTCJul 15, 04:55 UTC8h 9m
2026-07-14 SWR6A ZRH → ORD Jul 14, 08:20 UTCJul 14, 17:10 UTC8h 50m
2026-07-13 SWR4Y BOS → ZRH Jul 13, 02:05 UTCJul 13, 09:05 UTC7h 0m
2026-07-12 SWR52 ZRH → BOS Jul 12, 16:30 UTCJul 13, 00:01 UTC7h 30m
2026-07-12 SWR19C EWR → ZRH Jul 12, 03:10 UTCJul 12, 10:10 UTC7h 0m
2026-07-11 SWR18P - Jul 11, 23:15 UTCJul 12, 01:10 UTC1h 55m
2026-07-11 SWR18P - Jul 11, 17:05 UTCJul 11, 19:05 UTC2h 0m
2026-07-10 SWR147 DEL → ZRH Jul 10, 20:25 UTCJul 11, 04:30 UTC8h 5m
2026-07-10 SWR146 ZRH → DEL Jul 10, 10:45 UTCJul 10, 18:00 UTC7h 15m
2026-07-09 SWR147 DEL → ZRH Jul 9, 20:20 UTCJul 10, 04:20 UTC8h 0m
2026-07-09 SWR146 ZRH → DEL Jul 9, 11:00 UTCJul 9, 18:10 UTC7h 10m
2026-07-08 SWR3W JFK → ZRH Jul 8, 20:50 UTCJul 9, 04:10 UTC7h 20m
2026-07-08 SWR22D - Jul 8, 10:05 UTCJul 8, 17:55 UTC7h 50m
2026-07-08 SWR23A JFK → GVA Jul 8, 00:05 UTCJul 8, 07:15 UTC7h 10m
2026-07-07 SWR14V ZRH → JFK Jul 7, 12:35 UTCJul 7, 20:40 UTC8h 5m
2026-07-07 SWR19C EWR → ZRH Jul 7, 03:10 UTCJul 7, 10:10 UTC7h 0m
2026-07-06 SWR18P - Jul 6, 15:50 UTCJul 7, 00:15 UTC8h 25m
2026-07-06 SWR2K IAD → ZRH Jul 6, 03:55 UTCJul 6, 11:15 UTC7h 20m
2026-07-05 SWR72 ZRH → IAD Jul 5, 13:00 UTCJul 5, 21:45 UTC8h 45m
2026-07-05 SWR4Y BOS → ZRH Jul 5, 02:50 UTCJul 5, 09:25 UTC6h 35m
2026-07-04 SWR52 ZRH → BOS Jul 4, 16:10 UTCJul 5, 00:45 UTC8h 35m
2026-07-03 SWR7C ORD → ZRH Jul 3, 21:10 UTCJul 4, 04:50 UTC7h 40m
2026-07-03 SWR6A ZRH → ORD Jul 3, 08:25 UTCJul 3, 17:45 UTC9h 20m
2026-07-02 SWR3W JFK → ZRH Jul 2, 21:00 UTCJul 3, 04:05 UTC7h 5m
2026-07-02 SWR22D - Jul 2, 09:55 UTCJul 2, 18:05 UTC8h 10m
2026-07-02 SWR23A JFK → GVA Jul 2, 00:10 UTCJul 2, 07:10 UTC7h 0m
2026-07-01 SWR16F ZRH → JFK Jul 1, 08:50 UTCJul 1, 17:15 UTC8h 25m

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

Mode-S 4B1884 frequently asked

What is Mode-S code 4B1884?
4B1884 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JHK.
Where is Mode-S 4B1884 registered?
Mode-S code 4B1884 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1884 broadcasting right now?
Yes. Mode-S 4B1884 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1884, octal 22614204, decimal 4,921,476.
What flights does 4B1884 operate?
Mode-S 4B1884 has broadcast 20 distinct callsigns, including SWR4Y, SWR67G, SWR52, SWR66C, SWR18P.