Apparatus

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sensors Mode-S transponder

4B181B

ICAO 24-bit transponder address · allocated to Switzerland

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

Hex
4B181B
Octal
22614033
Decimal
4,921,371
Country
CH
Tail
HB-JDJ
Type
A20N
Broadcasting now · callsign SWR1488 · 31,000 ft
Flights observed
478
Distinct callsigns
20
Country
CH
Last broadcast
2h ago

Current position

4B181B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B181B 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
SWR533X Swiss International Air Lines 10 2026-06-15
SWR3PT Swiss International Air Lines 10 2026-06-15
SWR5YV - 9 2026-07-12
SWR49L Swiss International Air Lines 9 2026-05-26
SWR39L - 9 2026-07-09
SWR1886 Swiss International Air Lines 9 2026-05-25
SWR115Y - 9 2026-07-09
SWR98G - 8 2026-07-12
SWR8PZ - 8 2026-06-17
SWR21M Swiss International Air Lines 8 2026-06-01
SWR1PM Swiss International Air Lines 8 2026-06-01
SWR1KV Swiss International Air Lines 8 2026-05-31
SWR438A Swiss International Air Lines 7 2026-06-01
SWR336L - 7 2026-07-09
SWR8QE Swiss International Air Lines 6 2026-06-08
SWR87C - 6 2026-07-10
SWR7DC Swiss International Air Lines 6 2026-06-08
SWR5MP - 6 2026-06-17
SWR5AX - 6 2026-07-09
SWR4TD - 6 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SWR98F SKG → ZRH Jul 14, 10:50 UTCJul 14, 13:05 UTC2h 15m
2026-07-14 SWR79B ZRH → SKG Jul 14, 07:55 UTCJul 14, 09:45 UTC1h 50m
2026-07-14 SWR8AD CPH → ZRH Jul 14, 04:55 UTCJul 14, 06:20 UTC1h 25m
2026-07-13 SWR44X ZRH → CPH Jul 13, 19:55 UTCJul 13, 21:20 UTC1h 25m
2026-07-13 SWR262C - Jul 13, 15:10 UTCJul 13, 17:15 UTC2h 5m
2026-07-13 SWR3WL - Jul 13, 11:35 UTCJul 13, 13:55 UTC2h 20m
2026-07-13 SWR7AK NCE → ZRH Jul 13, 08:30 UTCJul 13, 09:30 UTC1h 0m
2026-07-13 SWR42B ZRH → NCE Jul 13, 06:20 UTCJul 13, 07:15 UTC55m
2026-07-12 SWR1LK FRA → ZRH Jul 12, 19:40 UTCJul 12, 20:15 UTC35m
2026-07-12 SWR4ET ZRH → FRA Jul 12, 17:35 UTCJul 12, 18:15 UTC40m
2026-07-12 SWR98G - Jul 12, 14:30 UTCJul 12, 16:30 UTC2h 0m
2026-07-12 SWR5YV ZRH → OTP Jul 12, 10:55 UTCJul 12, 12:40 UTC1h 45m
2026-07-12 SWR7AK NCE → ZRH Jul 12, 08:15 UTCJul 12, 09:10 UTC55m
2026-07-12 SWR42B ZRH → NCE Jul 12, 06:20 UTCJul 12, 07:10 UTC50m
2026-07-11 SWR1LK - Jul 11, 19:20 UTCJul 11, 19:55 UTC35m
2026-07-11 SWR4ET ZRH → FRA Jul 11, 17:20 UTCJul 11, 17:55 UTC35m
2026-07-11 SWR98G - Jul 11, 13:35 UTCJul 11, 15:40 UTC2h 5m
2026-07-11 SWR5YV - Jul 11, 10:30 UTCJul 11, 12:20 UTC1h 50m
2026-07-11 EDW399L - Jul 11, 07:20 UTCJul 11, 09:15 UTC1h 55m
2026-07-11 EDW398E - Jul 11, 04:10 UTCJul 11, 05:45 UTC1h 35m
2026-07-10 SWR1LK FRA → ZRH Jul 10, 19:30 UTCJul 10, 20:10 UTC40m
2026-07-10 SWR4ET ZRH → FRA Jul 10, 17:20 UTCJul 10, 17:55 UTC35m
2026-07-10 SWR4TD BCN → ZRH Jul 10, 14:10 UTCJul 10, 15:35 UTC1h 25m
2026-07-10 SWR87C ZRH → BCN Jul 10, 11:10 UTCJul 10, 12:45 UTC1h 35m
2026-07-10 SWR2WX CPH → ZRH Jul 10, 08:10 UTCJul 10, 09:35 UTC1h 25m
2026-07-10 SWR193T ZRH → CPH Jul 10, 05:30 UTCJul 10, 06:55 UTC1h 25m
2026-07-09 SWR39L - Jul 9, 19:25 UTCJul 9, 20:50 UTC1h 25m
2026-07-09 SWR115Y ZRH → LHR Jul 9, 16:45 UTCJul 9, 18:10 UTC1h 25m
2026-07-09 SWR5AX VLC → ZRH Jul 9, 13:40 UTCJul 9, 15:25 UTC1h 45m
2026-07-09 SWR336L - Jul 9, 10:25 UTCJul 9, 12:10 UTC1h 45m
2026-07-09 SWR336L ZRH → ZRH Jul 9, 10:10 UTCJul 9, 10:15 UTC5m
2026-07-09 SWR52Y BRU → ZRH Jul 9, 08:10 UTCJul 9, 09:05 UTC55m
2026-07-09 SWR756C ZRH → BRU Jul 9, 05:50 UTCJul 9, 06:40 UTC50m
2026-07-08 SWR465Y ALC → ZRH Jul 8, 18:50 UTCJul 8, 20:45 UTC1h 55m
2026-07-08 SWR374P ZRH → ALC Jul 8, 15:25 UTCJul 8, 17:15 UTC1h 50m
2026-07-08 SWR2XH - Jul 8, 11:30 UTCJul 8, 13:50 UTC2h 20m
2026-07-08 SWR98P - Jul 8, 07:55 UTCJul 8, 10:05 UTC2h 10m
2026-07-07 SWR4TD BCN → ZRH Jul 7, 13:55 UTCJul 7, 15:25 UTC1h 30m
2026-07-07 SWR87C ZRH → BCN Jul 7, 10:50 UTCJul 7, 12:15 UTC1h 25m
2026-07-07 SWR4CX BEG → ZRH Jul 7, 07:50 UTCJul 7, 09:25 UTC1h 35m
2026-07-07 SWR464L ZRH → BEG Jul 7, 05:20 UTCJul 7, 06:35 UTC1h 15m
2026-07-06 SWR1LK FRA → ZRH Jul 6, 19:10 UTCJul 6, 19:50 UTC40m
2026-07-06 SWR4ET ZRH → FRA Jul 6, 17:15 UTCJul 6, 17:55 UTC40m
2026-07-06 SWR98G - Jul 6, 13:45 UTCJul 6, 15:45 UTC2h 0m
2026-07-06 SWR5YV - Jul 6, 10:30 UTCJul 6, 12:20 UTC1h 50m
2026-07-06 SWR2XL - Jul 6, 08:30 UTCJul 6, 08:55 UTC25m
2026-07-06 SWR915W ZRH → GVA Jul 6, 06:20 UTCJul 6, 07:05 UTC45m
2026-07-05 SWR9TP GVA → ZRH Jul 5, 18:55 UTCJul 5, 19:25 UTC30m
2026-07-05 SWR3ZK ZRH → GVA Jul 5, 17:10 UTCJul 5, 17:50 UTC40m
2026-07-05 SWR98G - Jul 5, 13:40 UTCJul 5, 15:50 UTC2h 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-JDJ page for operator, model, and routing details .

Mode-S 4B181B frequently asked

What is Mode-S code 4B181B?
4B181B is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JDJ.
Where is Mode-S 4B181B registered?
Mode-S code 4B181B is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B181B broadcasting right now?
Yes. Mode-S 4B181B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B181B, octal 22614033, decimal 4,921,371.
What flights does 4B181B operate?
Mode-S 4B181B has broadcast 20 distinct callsigns, including SWR533X, SWR3PT, SWR5YV, SWR49L, SWR39L.