Apparatus

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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 Jul 26, 20:00 UTC
Flights observed
582
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 20:00 UTC

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

Callsign Airline Flights Last seen
SWR39L Swiss International Air Lines 14 2026-07-22
SWR115Y Swiss International Air Lines 13 2026-07-22
SWR3PT Swiss International Air Lines 11 2026-07-23
SWR533X Swiss International Air Lines 10 2026-07-23
SWR438A - 9 2026-07-06
SWR40L Swiss International Air Lines 9 2026-07-19
SWR3AP Swiss International Air Lines 9 2026-07-20
SWR21M - 9 2026-07-06
SWR9PX Swiss International Air Lines 8 2026-04-20
SWR7MV - 8 2026-07-05
SWR7DC - 8 2026-07-19
SWR5AX - 8 2026-07-08
SWR336L - 8 2026-07-08
SWR98G - 7 2026-07-21
SWR5YV Swiss International Air Lines 7 2026-07-21
SWR589X Swiss International Air Lines 7 2026-04-20
SWR1HW - 7 2026-07-06
SWR9ZA Swiss International Air Lines 6 2026-07-25
SWR8QE - 6 2026-07-19
SWR5AM - 6 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWR1T NCE → ZRH Jul 26, 19:05 UTCJul 26, 19:55 UTC50m
2026-07-26 SWR351E ZRH → NCE Jul 26, 17:00 UTCJul 26, 17:55 UTC55m
2026-07-26 SWR2XH AGP → ZRH Jul 26, 13:30 UTCJul 26, 15:50 UTC2h 20m
2026-07-26 SWR98P ZRH → AGP Jul 26, 08:10 UTCJul 26, 10:10 UTC2h 0m
2026-07-25 SWR2089 LIS → ZRH Jul 25, 16:55 UTCJul 25, 19:05 UTC2h 10m
2026-07-25 SWR58H LCY → GVA Jul 25, 13:05 UTCJul 25, 15:40 UTC2h 35m
2026-07-25 SWR9ZA OPO → ZRH Jul 25, 08:50 UTCJul 25, 10:50 UTC2h 0m
2026-07-25 SWR2LM ZRH → FRA Jul 25, 05:30 UTCJul 25, 07:45 UTC2h 15m
2026-07-24 SWR54M - Jul 24, 18:10 UTCJul 24, 20:25 UTC2h 15m
2026-07-24 SWR88C - Jul 24, 15:00 UTCJul 24, 16:50 UTC1h 50m
2026-07-24 SWR2XH AGP → ZRH Jul 24, 11:35 UTCJul 24, 13:40 UTC2h 5m
2026-07-24 SWR98P ZRH → AGP Jul 24, 07:55 UTCJul 24, 10:15 UTC2h 20m
2026-07-24 SWR4VE GVA → FRA Jul 24, 04:10 UTCJul 24, 05:40 UTC1h 30m
2026-07-23 SWR4KB ZRH → BCN Jul 23, 20:25 UTCJul 23, 21:40 UTC1h 15m
2026-07-23 SWR388G HAM → ZRH Jul 23, 17:30 UTCJul 23, 18:30 UTC1h 0m
2026-07-23 SWR1TX ZRH → HAM Jul 23, 15:10 UTCJul 23, 16:30 UTC1h 20m
2026-07-23 SWR3PT ZRH → LHR Jul 23, 13:25 UTCJul 23, 13:50 UTC25m
2026-07-23 SWR533X ZRH → GVA Jul 23, 11:50 UTCJul 23, 12:20 UTC30m
2026-07-22 SWR39L LHR → ZRH Jul 22, 19:30 UTCJul 22, 20:55 UTC1h 25m
2026-07-22 SWR115Y ZRH → LHR Jul 22, 16:45 UTCJul 22, 18:10 UTC1h 25m
2026-07-22 SWR5CB - Jul 22, 13:55 UTCJul 22, 15:00 UTC1h 5m
2026-07-22 SWR1PL ZRH → BER Jul 22, 11:30 UTCJul 22, 12:40 UTC1h 10m
2026-07-22 SWR2WX - Jul 22, 11:10 UTCJul 22, 11:25 UTC15m
2026-07-21 SWR1LK FRA → ZRH Jul 21, 19:05 UTCJul 21, 19:40 UTC35m
2026-07-21 SWR4ET ZRH → FRA Jul 21, 17:20 UTCJul 21, 18:00 UTC40m
2026-07-21 SWR98G - Jul 21, 13:55 UTCJul 21, 16:05 UTC2h 10m
2026-07-21 SWR5YV ZRH → NCE Jul 21, 11:00 UTCJul 21, 12:40 UTC1h 40m
2026-07-21 SWR2XL GVA → ZRH Jul 21, 08:55 UTCJul 21, 09:30 UTC35m
2026-07-21 SWR915W ZRH → GVA Jul 21, 06:00 UTCJul 21, 06:40 UTC40m
2026-07-20 SWR39L LHR → ZRH Jul 20, 23:30 UTCJul 20, 23:55 UTC24m
2026-07-20 SWR39L LHR → ZRH Jul 20, 19:45 UTCJul 20, 21:10 UTC1h 25m
2026-07-20 SWR115Y ZRH → LHR Jul 20, 17:00 UTCJul 20, 18:30 UTC1h 30m
2026-07-20 SWR3PT - Jul 20, 13:50 UTCJul 20, 15:10 UTC1h 20m
2026-07-20 SWR3PT GVA → ZRH Jul 20, 13:15 UTCJul 20, 13:45 UTC30m
2026-07-20 SWR533X ZRH → GVA Jul 20, 11:35 UTCJul 20, 12:05 UTC30m
2026-07-20 SWR3HY GVA → ZRH Jul 20, 09:40 UTCJul 20, 10:10 UTC30m
2026-07-20 SWR291X ZRH → GVA Jul 20, 07:40 UTCJul 20, 08:10 UTC30m
2026-07-20 SWR3AP VLC → ZRH Jul 20, 04:20 UTCJul 20, 06:05 UTC1h 45m
2026-07-19 SWR40L ZRH → VLC Jul 19, 20:35 UTCJul 19, 22:15 UTC1h 40m
2026-07-19 SWR7DC BRU → ZRH Jul 19, 17:50 UTCJul 19, 18:45 UTC55m
2026-07-19 SWR8QE ZRH → BRU Jul 19, 15:35 UTCJul 19, 16:35 UTC1h 0m
2026-07-19 SWR1253 ARN → ZRH Jul 19, 08:55 UTCJul 19, 11:00 UTC2h 5m
2026-07-19 SWR1252 ZRH → ARN Jul 19, 05:55 UTCJul 19, 07:45 UTC1h 50m
2026-07-18 SWR2089 LIS → ZRH Jul 18, 16:35 UTCJul 18, 18:45 UTC2h 10m
2026-07-18 SWR58H ZRH → LIS Jul 18, 12:45 UTCJul 18, 15:30 UTC2h 45m
2026-07-17 SWR1ZB ATH → ZRH Jul 17, 14:24 UTCJul 17, 16:55 UTC2h 30m
2026-07-17 SWR5AM ZRH → ATH Jul 17, 10:40 UTCJul 17, 12:45 UTC2h 5m
2026-07-17 SWR52Y - Jul 17, 08:20 UTCJul 17, 09:10 UTC50m
2026-07-17 SWR756C ZRH → BRU Jul 17, 06:10 UTCJul 17, 07:05 UTC55m
2026-07-16 SWR388G - Jul 16, 17:54 UTCJul 16, 19:05 UTC1h 10m

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 Jul 26, 20:00 UTC.
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 SWR39L, SWR115Y, SWR3PT, SWR533X, SWR438A.