sensors Mode-S transponder

4B181A

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JDI · AIRBUS A-320neo

Hex
4B181A
Octal
22614032
Decimal
4,921,370
Country
CH
Tail
HB-JDI
Type
A20N
No current signal · last broadcast 3h ago
Flights observed
286
Distinct callsigns
20
Country
CH
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 4B181A.

Country allocation

The ICAO 24-bit address 4B181A 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 SWR40L ZRH → VLC May 29, 20:40 UTCMay 29, 22:10 UTC1h 30m
2026-05-29 SWR2257 BUD → ZRH May 29, 14:00 UTCMay 29, 15:15 UTC1h 15m
2026-05-29 SWR2256 ZRH → BUD May 29, 11:15 UTCMay 29, 12:35 UTC1h 20m
2026-05-29 SWR1PM ARN → ZRH May 29, 04:15 UTCMay 29, 06:20 UTC2h 5m
2026-05-28 SWR1KV ZRH → ARN May 28, 19:45 UTCMay 28, 21:50 UTC2h 5m
2026-05-28 SWR262C AGP → ZRH May 28, 15:15 UTCMay 28, 17:30 UTC2h 15m
2026-05-28 SWR3WL ZRH → ZRH May 28, 11:50 UTCMay 28, 14:00 UTC2h 10m
2026-05-28 SWR241D MAD → ZRH May 28, 08:45 UTCMay 28, 10:25 UTC1h 40m
2026-05-28 SWR430H ZRH → MAD May 28, 05:25 UTCMay 28, 07:15 UTC1h 50m
2026-05-27 SWR39L LHR → ZRH May 27, 19:30 UTCMay 27, 20:45 UTC1h 15m
2026-05-27 SWR115Y ZRH → LHR May 27, 16:50 UTCMay 27, 18:20 UTC1h 30m
2026-05-27 SWR5AX VLC → ZRH May 27, 13:40 UTCMay 27, 15:40 UTC2h 0m
2026-05-27 SWR336L ZRH → VLC May 27, 10:15 UTCMay 27, 12:05 UTC1h 50m
2026-05-27 SWR44E BER → ZRH May 27, 07:45 UTCMay 27, 08:55 UTC1h 10m
2026-05-27 SWR97Y ZRH → BER May 27, 05:29 UTCMay 27, 06:34 UTC1h 5m
2026-05-26 SWR1ZB ATH → ZRH May 26, 14:20 UTCMay 26, 16:35 UTC2h 15m
2026-05-26 SWR5AM ZRH → ATH May 26, 10:34 UTCMay 26, 13:00 UTC2h 25m
2026-05-26 SWR52Y BRU → ZRH May 26, 08:24 UTCMay 26, 09:15 UTC50m
2026-05-26 SWR756C ZRH → BRU May 26, 05:49 UTCMay 26, 06:39 UTC50m
2026-05-25 SWR1LK FRA → ZRH May 25, 19:15 UTCMay 25, 19:54 UTC40m
2026-05-25 SWR4ET ZRH → FRA May 25, 17:10 UTCMay 25, 17:55 UTC45m
2026-05-25 SWR98G OTP → ZRH May 25, 13:40 UTCMay 25, 15:30 UTC1h 50m
2026-05-25 SWR5YV ZRH → NCE May 25, 10:25 UTCMay 25, 12:25 UTC2h 0m
2026-05-25 SWR2XL GVA → ZRH May 25, 08:15 UTCMay 25, 08:45 UTC30m
2026-05-25 SWR915W ZRH → GVA May 25, 06:05 UTCMay 25, 06:35 UTC30m
2026-05-24 SWR1YL BCN → ZRH May 24, 16:55 UTCMay 24, 18:20 UTC1h 25m
2026-05-24 SWR1958 ZRH → BCN May 24, 14:10 UTCMay 24, 15:35 UTC1h 25m
2026-05-24 SWR98F SKG → ZRH May 24, 10:55 UTCMay 24, 12:55 UTC2h 0m
2026-05-24 SWR79B ZRH → SKG May 24, 07:25 UTCMay 24, 09:25 UTC2h 0m
2026-05-24 SWR8AD CPH → ZRH May 24, 04:45 UTCMay 24, 06:10 UTC1h 25m
2026-05-23 SWR44X ZRH → CPH May 23, 19:45 UTCMay 23, 21:10 UTC1h 25m
2026-05-23 SWR438A LHR → ZRH May 23, 16:35 UTCMay 23, 17:50 UTC1h 15m
2026-05-23 SWR21M ZRH → LHR May 23, 14:05 UTCMay 23, 15:25 UTC1h 20m
2026-05-23 SWR98F SKG → ZRH May 23, 10:30 UTCMay 23, 12:30 UTC2h 0m
2026-05-23 SWR79B ZRH → SKG May 23, 07:35 UTCMay 23, 09:30 UTC1h 55m
2026-05-23 SWR8AD CPH → ZRH May 23, 04:40 UTCMay 23, 06:10 UTC1h 30m
2026-05-22 SWR44X ZRH → CPH May 22, 19:45 UTCMay 22, 21:10 UTC1h 25m
2026-05-22 SWR262C AGP → ZRH May 22, 16:05 UTCMay 22, 18:10 UTC2h 5m
2026-05-22 SWR3WL ZRH → ZRH May 22, 11:55 UTCMay 22, 14:10 UTC2h 15m
2026-05-22 SWR731C HAM → ZRH May 22, 09:10 UTCMay 22, 10:20 UTC1h 10m
2026-05-22 SWR92W ZRH → HAM May 22, 06:50 UTCMay 22, 07:55 UTC1h 5m
2026-05-22 SWR4VE GVA → FRA May 22, 04:10 UTCMay 22, 05:35 UTC1h 25m
2026-05-21 SWR4KB ZRH → BCN May 21, 20:10 UTCMay 21, 21:35 UTC1h 25m
2026-05-21 SWR42V CDG → ZRH May 21, 18:05 UTCMay 21, 18:55 UTC50m
2026-05-21 SWR1DE ZRH → CDG May 21, 15:55 UTCMay 21, 16:50 UTC55m
2026-05-21 SWR3PT ZRH → LHR May 21, 13:30 UTCMay 21, 14:05 UTC35m
2026-05-21 SWR533X ZRH → GVA May 21, 11:25 UTCMay 21, 12:00 UTC35m
2026-05-21 SWR9ZA OPO → ZRH May 21, 08:05 UTCMay 21, 10:20 UTC2h 15m
2026-05-21 SWR2LM ZRH → FRA May 21, 04:40 UTCMay 21, 07:00 UTC2h 20m
2026-05-20 SWR9EX KRK → ZRH May 20, 15:30 UTCMay 20, 19:20 UTC3h 50m

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

Mode-S 4B181A frequently asked

What is Mode-S code 4B181A?
4B181A is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JDI.
Where is Mode-S 4B181A registered?
Mode-S code 4B181A is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B181A broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B181A, octal 22614032, decimal 4,921,370.
What flights does 4B181A operate?
Mode-S 4B181A has broadcast 20 distinct callsigns, including SWR9PX, SWR589X, SWR533X, SWR40L, SWR3PT.