sensors Mode-S transponder

4B187D

ICAO 24-bit transponder address · allocated to Switzerland

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

Hex
4B187D
Octal
22614175
Decimal
4,921,469
Country
CH
Tail
HB-JHD
Type
A333
Transponder active on ground
Flights observed
81
Distinct callsigns
20
Country
CH
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 4B187D.

Country allocation

The ICAO 24-bit address 4B187D 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SWR22D GVA → JFK May 29, 11:40 UTCMay 29, 19:20 UTC7h 40m
2026-05-29 SWR23A JFK → GVA May 29, 00:00 UTCMay 29, 07:05 UTC7h 5m
2026-05-28 SWR14V ZRH → JFK May 28, 11:55 UTCMay 28, 19:45 UTC7h 50m
2026-05-28 SWR4Y BOS → ZRH May 28, 02:20 UTCMay 28, 09:30 UTC7h 10m
2026-05-27 SWR52 ZRH → BOS May 27, 16:30 UTCMay 27, 23:45 UTC7h 15m
2026-05-27 SWR4Y BOS → ZRH May 27, 01:44 UTCMay 27, 09:05 UTC7h 21m
2026-05-26 SWR52 ZRH → BOS May 26, 16:05 UTCMay 26, 23:39 UTC7h 35m
2026-05-26 SWR15X JFK → ZRH May 26, 01:20 UTCMay 26, 08:39 UTC7h 20m
2026-05-25 SWR16F ZRH → JFK May 25, 08:30 UTCMay 25, 16:35 UTC8h 5m
2026-05-25 SWR155 BOM → ZRH May 25, 03:40 UTCMay 25, 04:30 UTC50m
2026-05-24 SWR155 BOM → ZRH May 24, 19:40 UTCMay 25, 03:35 UTC7h 55m
2026-05-24 SWR154 ZRH → BOM May 24, 08:40 UTCMay 24, 17:05 UTC8h 25m
2026-05-23 SWR155 BOM → ZRH May 23, 19:25 UTCMay 24, 04:30 UTC9h 5m
2026-05-23 SWR154 ZRH → BOM May 23, 08:20 UTCMay 23, 16:35 UTC8h 15m
2026-05-22 SWR19C EWR → ZRH May 22, 02:35 UTCMay 22, 09:20 UTC6h 45m
2026-05-21 SWR18P ZRH → EWR May 21, 15:55 UTCMay 22, 00:20 UTC8h 25m
2026-05-21 SWR2647 DEL → ZRH May 21, 03:35 UTCMay 21, 11:35 UTC8h 0m
2026-05-20 SWR2646 ZRH → DEL May 20, 17:45 UTCMay 21, 01:25 UTC7h 40m
2026-05-20 SWR19C EWR → ZRH May 20, 02:50 UTCMay 20, 10:05 UTC7h 16m
2026-05-19 SWR18P ZRH → EWR May 19, 15:50 UTCMay 20, 00:10 UTC8h 20m
2026-05-19 SWR4Y BOS → ZRH May 19, 02:05 UTCMay 19, 08:55 UTC6h 50m
2026-05-18 SWR52 ZRH → BOS May 18, 16:15 UTCMay 18, 23:55 UTC7h 39m
2026-05-18 SWR19C EWR → ZRH May 18, 02:00 UTCMay 18, 09:25 UTC7h 25m
2026-05-17 SWR18P ZRH → EWR May 17, 15:40 UTCMay 18, 00:00 UTC8h 20m
2026-05-17 SWR2YB ARN → ZRH May 17, 11:20 UTCMay 17, 13:31 UTC2h 10m
2026-05-17 SWR5ZM ZRH → ARN May 17, 07:30 UTCMay 17, 09:35 UTC2h 5m
2026-05-16 SWR3W JFK → ZRH May 16, 20:45 UTCMay 17, 04:05 UTC7h 20m
2026-05-16 SWR22D GVA → JFK May 16, 10:11 UTCMay 16, 18:25 UTC8h 15m
2026-05-16 SWR23A JFK → GVA May 16, 00:00 UTCMay 16, 07:01 UTC7h 1m
2026-05-15 SWR14V ZRH → JFK May 15, 12:00 UTCMay 15, 20:20 UTC8h 19m
2026-05-15 SWR2K IAD → ZRH May 15, 00:55 UTCMay 15, 08:30 UTC7h 35m
2026-05-14 SWR72 ZRH → IAD May 14, 11:20 UTCMay 14, 20:20 UTC9h 0m
2026-05-14 SWR15X JFK → ZRH May 14, 01:30 UTCMay 14, 08:40 UTC7h 10m
2026-05-13 SWR16F ZRH → JFK May 13, 08:20 UTCMay 13, 16:45 UTC8h 25m
2026-05-12 SWR5185 BRU → ZRH May 12, 09:15 UTCMay 12, 10:25 UTC1h 10m
2026-04-23 SWR5184 ZRH → LJU Apr 23, 07:20 UTCApr 23, 08:35 UTC1h 15m
2026-04-22 SWR3W JFK → ZRH Apr 22, 20:20 UTCApr 23, 04:10 UTC7h 50m
2026-04-22 SWR22D GVA → JFK Apr 22, 10:00 UTCApr 22, 17:50 UTC7h 50m
2026-04-21 SWR23A JFK → GVA Apr 21, 23:45 UTCApr 22, 07:15 UTC7h 30m
2026-04-21 SWR14V ZRH → JFK Apr 21, 12:50 UTCApr 21, 20:55 UTC8h 5m
2026-04-19 SWR7C ORD → ZRH Apr 19, 20:05 UTCApr 20, 04:05 UTC8h 0m
2026-04-19 SWR6A ZRH → ORD Apr 19, 08:15 UTCApr 19, 17:45 UTC9h 30m
2026-04-18 SWR3W JFK → ZRH Apr 18, 20:55 UTCApr 19, 04:15 UTC7h 20m
2026-04-18 SWR22D GVA → JFK Apr 18, 10:00 UTCApr 18, 18:05 UTC8h 5m
2026-04-18 SWR23A JFK → GVA Apr 18, 05:25 UTCApr 18, 07:20 UTC1h 55m
2026-04-18 SWR23A JFK → GVA Apr 18, 01:25 UTCApr 18, 02:00 UTC35m
2026-04-18 SWR23A JFK → GVA Apr 18, 00:20 UTCApr 18, 01:15 UTC55m
2026-04-17 SWR14V ZRH → JFK Apr 17, 19:25 UTCApr 17, 20:40 UTC1h 15m
2026-04-17 SWR14V ZRH → JFK Apr 17, 18:50 UTCApr 17, 19:20 UTC30m
2026-04-17 SWR14V ZRH → JFK Apr 17, 13:20 UTCApr 17, 14:35 UTC1h 15m

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

Mode-S 4B187D frequently asked

What is Mode-S code 4B187D?
4B187D is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JHD.
Where is Mode-S 4B187D registered?
Mode-S code 4B187D is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B187D broadcasting right now?
Mode-S 4B187D 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 4B187D, octal 22614175, decimal 4,921,469.
What flights does 4B187D operate?
Mode-S 4B187D has broadcast 20 distinct callsigns, including SWR23A, SWR14V, SWR52, SWR4Y, SWR22D.