Apparatus

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sensors Mode-S transponder

4B187F

ICAO 24-bit transponder address · allocated to Switzerland

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

Hex
4B187F
Octal
22614177
Decimal
4,921,471
Country
CH
Tail
HB-JHF
Type
A333
Broadcasting now · callsign SWR15X · 41,000 ft
Flights observed
174
Distinct callsigns
20
Country
CH
Last broadcast
4h ago

Current position

4B187F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B187F 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
SWR2K - 14 2026-07-12
SWR72 - 13 2026-07-11
SWR15X - 12 2026-07-14
SWR16F - 11 2026-07-13
SWR155 - 11 2026-07-01
SWR22D Swiss International Air Lines 10 2026-05-27
SWR146 - 10 2026-07-12
SWR147 - 9 2026-07-12
SWR23A Swiss International Air Lines 8 2026-05-26
SWR154 - 8 2026-07-01
SWR2647 - 7 2026-06-26
SWR2646 - 7 2026-06-26
SWR19C - 7 2026-07-10
SWR18P - 7 2026-07-09
SWR14V Swiss International Air Lines 7 2026-05-26
SWR81 Swiss International Air Lines 5 2026-06-21
SWR80 Swiss International Air Lines 5 2026-06-21
SWR52 - 5 2026-07-10
SWR4Y - 5 2026-07-11
SWR8T - 2 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWR15X - Jul 14, 01:05 UTCJul 14, 02:45 UTC1h 40m
2026-07-13 SWR16F ZRH → JFK Jul 13, 09:00 UTCJul 13, 16:50 UTC7h 50m
2026-07-12 SWR147 DEL → ZRH Jul 12, 20:15 UTCJul 13, 04:25 UTC8h 10m
2026-07-12 SWR146 ZRH → DEL Jul 12, 10:55 UTCJul 12, 17:50 UTC6h 55m
2026-07-12 SWR2K IAD → ZRH Jul 12, 00:40 UTCJul 12, 08:15 UTC7h 35m
2026-07-11 SWR72 ZRH → IAD Jul 11, 11:45 UTCJul 11, 20:25 UTC8h 40m
2026-07-11 SWR4Y BOS → ZRH Jul 11, 02:10 UTCJul 11, 09:00 UTC6h 50m
2026-07-10 SWR52 ZRH → BOS Jul 10, 16:10 UTCJul 11, 00:05 UTC7h 55m
2026-07-10 SWR19C EWR → ZRH Jul 10, 03:00 UTCJul 10, 10:10 UTC7h 10m
2026-07-09 SWR18P ZRH → EWR Jul 9, 16:05 UTCJul 10, 00:20 UTC8h 15m
2026-07-09 SWR19C - Jul 9, 02:25 UTCJul 9, 09:50 UTC7h 25m
2026-07-08 SWR18P ZRH → EWR Jul 8, 16:15 UTCJul 9, 00:15 UTC8h 0m
2026-07-08 SWR2K IAD → ZRH Jul 8, 00:35 UTCJul 8, 08:20 UTC7h 45m
2026-07-07 SWR72 ZRH → IAD Jul 7, 11:45 UTCJul 7, 20:20 UTC8h 35m
2026-07-07 SWR4Y BOS → ZRH Jul 7, 02:40 UTCJul 7, 09:25 UTC6h 45m
2026-07-06 SWR52 ZRH → BOS Jul 6, 16:25 UTCJul 7, 00:10 UTC7h 45m
2026-07-06 SWR4Y BOS → ZRH Jul 6, 04:15 UTCJul 6, 10:50 UTC6h 35m
2026-07-05 SWR52 ZRH → BOS Jul 5, 16:35 UTCJul 6, 00:25 UTC7h 50m
2026-07-05 SWR5009 ORD → ZRH Jul 5, 04:25 UTCJul 5, 12:05 UTC7h 40m
2026-07-05 SWR8T - Jul 5, 02:05 UTCJul 5, 02:25 UTC20m
2026-07-04 SWR8T - Jul 4, 11:55 UTCJul 4, 22:35 UTC10h 40m
2026-07-04 SWR2K IAD → ZRH Jul 4, 00:35 UTCJul 4, 08:05 UTC7h 30m
2026-07-03 SWR72 ZRH → IAD Jul 3, 12:05 UTCJul 3, 21:10 UTC9h 5m
2026-07-02 SWR7C - Jul 2, 20:25 UTCJul 3, 04:10 UTC7h 45m
2026-07-02 SWR6A ZRH → ORD Jul 2, 08:20 UTCJul 2, 17:45 UTC9h 25m
2026-07-01 SWR155 - Jul 1, 19:35 UTCJul 2, 04:25 UTC8h 50m
2026-07-01 SWR154 ZRH → BOM Jul 1, 08:50 UTCJul 1, 17:10 UTC8h 20m
2026-06-30 SWR155 - Jun 30, 19:30 UTCJul 1, 04:25 UTC8h 55m
2026-06-30 SWR154 ZRH → BOM Jun 30, 08:20 UTCJun 30, 16:35 UTC8h 15m
2026-06-29 SWR155 - Jun 29, 19:35 UTCJun 30, 04:05 UTC8h 30m
2026-06-29 SWR154 ZRH → BOM Jun 29, 08:09 UTCJun 29, 16:10 UTC8h 0m
2026-06-28 SWR155 - Jun 28, 19:44 UTCJun 29, 04:20 UTC8h 35m
2026-06-28 SWR154 - Jun 28, 08:09 UTCJun 28, 10:30 UTC2h 20m
2026-06-27 SWR155 - Jun 27, 21:19 UTCJun 28, 04:15 UTC6h 55m
2026-06-27 SWR155 - Jun 27, 19:24 UTCJun 27, 19:49 UTC25m
2026-06-27 SWR154 ZRH → BOM Jun 27, 08:35 UTCJun 27, 16:39 UTC8h 5m
2026-06-26 SWR2647 DEL → ZRH Jun 26, 20:40 UTCJun 27, 04:44 UTC8h 5m
2026-06-26 SWR2646 ZRH → DEL Jun 26, 11:14 UTCJun 26, 18:29 UTC7h 15m
2026-06-26 SWR2K IAD → ZRH Jun 26, 00:45 UTCJun 26, 08:15 UTC7h 30m
2026-06-25 SWR72 ZRH → IAD Jun 25, 12:25 UTCJun 25, 20:59 UTC8h 35m
2026-06-23 SWR155 - Jun 23, 20:24 UTCJun 24, 04:30 UTC8h 5m
2026-06-23 SWR154 - Jun 23, 08:15 UTCJun 23, 16:05 UTC7h 50m
2026-06-22 SWR155 - Jun 22, 19:34 UTCJun 23, 04:25 UTC8h 50m
2026-06-22 SWR154 ZRH → BOM Jun 22, 08:15 UTCJun 22, 16:14 UTC8h 0m
2026-06-21 SWR81 YYZ → ZRH Jun 21, 20:54 UTCJun 22, 04:24 UTC7h 30m
2026-06-21 SWR80 ZRH → YYZ Jun 21, 08:40 UTCJun 21, 16:44 UTC8h 5m
2026-06-20 SWR7C ORD → ZRH Jun 20, 20:05 UTCJun 21, 04:14 UTC8h 10m
2026-06-20 SWR6A ZRH → ORD Jun 20, 08:19 UTCJun 20, 17:24 UTC9h 5m
2026-06-19 SWR147 DEL → ZRH Jun 19, 19:59 UTCJun 20, 04:24 UTC8h 25m
2026-06-19 SWR146 ZRH → DEL Jun 19, 10:54 UTCJun 19, 17:59 UTC7h 5m

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

Mode-S 4B187F frequently asked

What is Mode-S code 4B187F?
4B187F is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JHF.
Where is Mode-S 4B187F registered?
Mode-S code 4B187F is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B187F broadcasting right now?
Yes. Mode-S 4B187F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B187F, octal 22614177, decimal 4,921,471.
What flights does 4B187F operate?
Mode-S 4B187F has broadcast 20 distinct callsigns, including SWR2K, SWR72, SWR15X, SWR16F, SWR155.