Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4B181C

ICAO 24-bit transponder address · allocated to Switzerland

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

Hex
4B181C
Octal
22614034
Decimal
4,921,372
Country
CH
Tail
HB-JDK
Type
A20N
Broadcasting now · callsign SWR5YV · 39,025 ft
Flights observed
525
Distinct callsigns
20
Country
CH
Last broadcast
20m ago

Current position

4B181C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B181C 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
SWR5AX - 13 2026-07-11
SWR336L - 13 2026-07-11
SWR49L - 12 2026-07-05
SWR438A Swiss International Air Lines 11 2026-06-09
SWR7DC - 10 2026-07-04
SWR21M Swiss International Air Lines 10 2026-06-09
SWR1886 - 10 2026-07-04
SWR5AM - 9 2026-06-22
SWR39L - 9 2026-07-11
SWR1ZB - 9 2026-06-22
SWR115Y - 9 2026-07-11
SWR8QE - 8 2026-07-04
SWR5YV - 8 2026-07-14
SWR3WL - 8 2026-07-05
SWR262C - 8 2026-07-05
SWR1KV Swiss International Air Lines 8 2026-06-09
SWR98G - 7 2026-07-13
SWR7MV - 7 2026-06-26
SWR1PM Swiss International Air Lines 7 2026-06-10
SWR1HW - 7 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWR5YV - Jul 14, 10:25 UTCJul 14, 11:00 UTC35m
2026-07-14 SWR5PT HAM → ZRH Jul 14, 07:40 UTCJul 14, 08:50 UTC1h 10m
2026-07-14 SWR433Y ZRH → HAM Jul 14, 05:25 UTCJul 14, 06:25 UTC1h 0m
2026-07-13 SWR98G - Jul 13, 14:50 UTCJul 13, 16:55 UTC2h 5m
2026-07-13 SWR5YV ZRH → OTP Jul 13, 11:55 UTCJul 13, 13:45 UTC1h 50m
2026-07-13 SWR2GE - Jul 13, 08:30 UTCJul 13, 09:20 UTC50m
2026-07-13 SWR3PE ZRH → CDG Jul 13, 05:55 UTCJul 13, 06:55 UTC1h 0m
2026-07-12 SWR105W - Jul 12, 18:40 UTCJul 12, 19:45 UTC1h 5m
2026-07-12 SWR9D ZRH → HAM Jul 12, 16:30 UTCJul 12, 17:35 UTC1h 5m
2026-07-12 SWR4TD - Jul 12, 13:55 UTCJul 12, 15:20 UTC1h 25m
2026-07-12 SWR87C ZRH → BCN Jul 12, 11:25 UTCJul 12, 12:45 UTC1h 20m
2026-07-12 SWR2GE - Jul 12, 08:15 UTCJul 12, 09:00 UTC45m
2026-07-12 SWR3PE ZRH → CDG Jul 12, 06:01 UTCJul 12, 07:05 UTC1h 5m
2026-07-11 SWR39L LHR → ZRH Jul 11, 19:30 UTCJul 11, 20:50 UTC1h 20m
2026-07-11 SWR115Y ZRH → LHR Jul 11, 16:50 UTCJul 11, 18:05 UTC1h 15m
2026-07-11 SWR5AX VLC → ZRH Jul 11, 13:20 UTCJul 11, 15:15 UTC1h 55m
2026-07-11 SWR336L ZRH → VLC Jul 11, 10:25 UTCJul 11, 12:10 UTC1h 45m
2026-07-11 SWR52Y BRU → ZRH Jul 11, 08:15 UTCJul 11, 09:10 UTC55m
2026-07-11 SWR756C ZRH → BRU Jul 11, 05:45 UTCJul 11, 06:45 UTC1h 0m
2026-07-10 SWR39L - Jul 10, 19:50 UTCJul 10, 21:15 UTC1h 25m
2026-07-10 SWR115Y ZRH → LHR Jul 10, 16:55 UTCJul 10, 18:25 UTC1h 30m
2026-07-10 SWR5AX VLC → ZRH Jul 10, 13:20 UTCJul 10, 15:10 UTC1h 50m
2026-07-10 SWR336L ZRH → VLC Jul 10, 10:30 UTCJul 10, 12:15 UTC1h 45m
2026-07-10 SWR1ET - Jul 10, 04:50 UTCJul 10, 07:00 UTC2h 10m
2026-07-09 SWR2120 - Jul 9, 19:45 UTCJul 9, 22:05 UTC2h 20m
2026-07-09 SWR5XH - Jul 9, 16:40 UTCJul 9, 18:15 UTC1h 35m
2026-07-09 SWR2EG - Jul 9, 14:00 UTCJul 9, 15:25 UTC1h 25m
2026-07-09 SWR5GT - Jul 9, 11:10 UTCJul 9, 12:45 UTC1h 35m
2026-07-09 SWR2EP - Jul 9, 08:20 UTCJul 9, 09:55 UTC1h 35m
2026-07-09 SWR1ET - Jul 9, 04:30 UTCJul 9, 06:50 UTC2h 20m
2026-07-08 SWR2120 - Jul 8, 20:00 UTCJul 8, 22:05 UTC2h 5m
2026-07-08 SWR204K MXP → ZRH Jul 8, 17:40 UTCJul 8, 18:10 UTC30m
2026-07-08 SWR7WA ZRH → MXP Jul 8, 16:10 UTCJul 8, 16:40 UTC30m
2026-07-08 SWR4TD BCN → ZRH Jul 8, 13:25 UTCJul 8, 14:45 UTC1h 20m
2026-07-08 SWR87C ZRH → BCN Jul 8, 11:00 UTCJul 8, 12:15 UTC1h 15m
2026-07-08 SWR96M BCN → ZRH Jul 8, 08:20 UTCJul 8, 09:45 UTC1h 25m
2026-07-08 SWR44Y ZRH → BCN Jul 8, 05:30 UTCJul 8, 06:50 UTC1h 20m
2026-07-07 SWR1LK FRA → ZRH Jul 7, 19:05 UTCJul 7, 19:40 UTC35m
2026-07-07 SWR4ET ZRH → FRA Jul 7, 17:10 UTCJul 7, 17:45 UTC35m
2026-07-07 SWR98G - Jul 7, 13:25 UTCJul 7, 15:35 UTC2h 10m
2026-07-07 SWR5YV - Jul 7, 10:20 UTCJul 7, 12:15 UTC1h 55m
2026-07-07 SWR2083 LIS → ZRH Jul 7, 05:05 UTCJul 7, 07:30 UTC2h 25m
2026-07-06 SWR755L ZRH → LIS Jul 6, 20:00 UTCJul 6, 22:25 UTC2h 25m
2026-07-06 SWR1AM FRA → ZRH Jul 6, 17:15 UTCJul 6, 17:55 UTC40m
2026-07-06 SWR4B ZRH → FRA Jul 6, 15:25 UTCJul 6, 16:10 UTC45m
2026-07-06 SWR2XH - Jul 6, 11:35 UTCJul 6, 13:50 UTC2h 15m
2026-07-06 SWR98P - Jul 6, 08:05 UTCJul 6, 10:25 UTC2h 20m
2026-07-06 SWR5XL - Jul 6, 05:25 UTCJul 6, 06:30 UTC1h 5m
2026-07-05 SWR9LC ZRH → BER Jul 5, 19:35 UTCJul 5, 20:45 UTC1h 10m
2026-07-05 SWR262C - Jul 5, 15:30 UTCJul 5, 17:50 UTC2h 20m

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

Mode-S 4B181C frequently asked

What is Mode-S code 4B181C?
4B181C is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JDK.
Where is Mode-S 4B181C registered?
Mode-S code 4B181C is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B181C broadcasting right now?
Yes. Mode-S 4B181C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B181C, octal 22614034, decimal 4,921,372.
What flights does 4B181C operate?
Mode-S 4B181C has broadcast 20 distinct callsigns, including SWR5AX, SWR336L, SWR49L, SWR438A, SWR7DC.