Apparatus

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sensors Mode-S transponder

4B181D

ICAO 24-bit transponder address · allocated to Switzerland

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

Hex
4B181D
Octal
22614035
Decimal
4,921,373
Country
CH
Tail
HB-JDL
Type
A20N
Broadcasting now · callsign SWR7TE · 37,350 ft
Flights observed
165
Distinct callsigns
20
Country
CH
Last broadcast
14d ago

Current position

4B181D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B181D 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
SWR2120 Swiss International Air Lines 8 2026-07-25
SWR1ET Swiss International Air Lines 8 2026-07-26
SWR438A Swiss International Air Lines 5 2026-07-26
SWR21M Swiss International Air Lines 5 2026-07-26
SWR1958 - 5 2026-07-20
SWR8PZ Swiss International Air Lines 4 2026-07-26
SWR8AD Swiss International Air Lines 4 2026-07-18
SWR5MP Swiss International Air Lines 4 2026-07-26
SWR5AM Swiss International Air Lines 4 2026-07-23
SWR44X Swiss International Air Lines 4 2026-07-17
SWR1ZB - 4 2026-07-23
SWR1YL Swiss International Air Lines 4 2026-07-20
SWR5GT Swiss International Air Lines 3 2026-07-22
SWR8QE - 2 2026-06-30
SWR82L - 2 2026-07-10
SWR7MV Swiss International Air Lines 2 2026-07-26
SWR7DC - 2 2026-06-30
SWR5XH - 2 2026-07-12
SWR5TV - 2 2026-07-10
SWR5PT - 2 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWR7MV ZRH → ATH Jul 26, 19:45 UTCJul 26, 21:15 UTC1h 30m
2026-07-26 SWR438A LHR → ZRH Jul 26, 16:40 UTCJul 26, 17:55 UTC1h 15m
2026-07-26 SWR21M ZRH → LHR Jul 26, 13:55 UTCJul 26, 15:25 UTC1h 30m
2026-07-26 SWR5MP LHR → LHR Jul 26, 11:35 UTCJul 26, 12:45 UTC1h 10m
2026-07-26 SWR8PZ ZRH → LHR Jul 26, 08:50 UTCJul 26, 10:10 UTC1h 20m
2026-07-26 SWR1ET AGP → ZRH Jul 26, 04:45 UTCJul 26, 06:50 UTC2h 6m
2026-07-25 SWR2120 ZRH → AGP Jul 25, 20:25 UTCJul 25, 23:10 UTC2h 45m
2026-07-25 SWR262C AGP → ZRH Jul 25, 15:25 UTCJul 25, 17:30 UTC2h 5m
2026-07-25 SWR3WL ZRH → ZRH Jul 25, 11:50 UTCJul 25, 14:15 UTC2h 25m
2026-07-25 SWR4HZ KRK → ZRH Jul 25, 08:20 UTCJul 25, 09:45 UTC1h 25m
2026-07-25 SWR8EX ZRH → KRK Jul 25, 05:55 UTCJul 25, 07:15 UTC1h 20m
2026-07-24 SWR438A LHR → ZRH Jul 24, 16:50 UTCJul 24, 18:05 UTC1h 15m
2026-07-24 SWR21M ZRH → LHR Jul 24, 14:10 UTCJul 24, 15:30 UTC1h 20m
2026-07-24 SWR1ET AGP → ZRH Jul 24, 04:55 UTCJul 24, 07:00 UTC2h 5m
2026-07-23 SWR2120 ZRH → AGP Jul 23, 20:15 UTCJul 23, 22:30 UTC2h 15m
2026-07-23 SWR1ZB ATH → ZRH Jul 23, 14:30 UTCJul 23, 17:10 UTC2h 40m
2026-07-23 SWR5AM ZRH → ATH Jul 23, 10:50 UTCJul 23, 12:55 UTC2h 5m
2026-07-23 SWR2GE CDG → ZRH Jul 23, 08:30 UTCJul 23, 09:20 UTC50m
2026-07-23 SWR3PE ZRH → CDG Jul 23, 05:55 UTCJul 23, 07:00 UTC1h 5m
2026-07-22 SWR438A LHR → ZRH Jul 22, 16:50 UTCJul 22, 18:05 UTC1h 15m
2026-07-22 SWR21M ZRH → LHR Jul 22, 13:55 UTCJul 22, 15:25 UTC1h 30m
2026-07-22 SWR5GT FCO → ZRH Jul 22, 11:20 UTCJul 22, 12:45 UTC1h 25m
2026-07-22 SWR1ET AGP → ZRH Jul 22, 04:40 UTCJul 22, 05:25 UTC45m
2026-07-21 SWR2120 - Jul 21, 19:40 UTCJul 21, 22:05 UTC2h 25m
2026-07-21 EDW57P - Jul 21, 15:15 UTCJul 21, 16:40 UTC1h 25m
2026-07-21 EDW58T - Jul 21, 12:25 UTCJul 21, 13:45 UTC1h 20m
2026-07-21 SWR4EA NCE → ZRH Jul 21, 09:45 UTCJul 21, 10:45 UTC1h 0m
2026-07-21 SWR564 ZRH → NCE Jul 21, 07:20 UTCJul 21, 08:10 UTC50m
2026-07-21 SWR3ZC GVA → ZRH Jul 21, 05:35 UTCJul 21, 06:05 UTC30m
2026-07-20 SWR4TH ZRH → GVA Jul 20, 23:45 UTCJul 20, 23:55 UTC10m
2026-07-20 SWR4TH ZRH → GVA Jul 20, 20:55 UTCJul 20, 21:25 UTC30m
2026-07-20 SWR1YL BCN → ZRH Jul 20, 18:25 UTCJul 20, 19:50 UTC1h 25m
2026-07-20 SWR1958 - Jul 20, 17:10 UTCJul 20, 18:20 UTC1h 10m
2026-07-20 SWR1958 ZRH → BCN Jul 20, 14:25 UTCJul 20, 15:50 UTC1h 25m
2026-07-20 SWR5MP LHR → LHR Jul 20, 12:00 UTCJul 20, 13:10 UTC1h 10m
2026-07-20 SWR8PZ ZRH → LHR Jul 20, 09:05 UTCJul 20, 10:45 UTC1h 40m
2026-07-20 SWR1ET AGP → ZRH Jul 20, 04:45 UTCJul 20, 06:50 UTC2h 5m
2026-07-19 SWR2120 - Jul 19, 20:00 UTCJul 19, 22:30 UTC2h 30m
2026-07-19 SWR1ZB ATH → ZRH Jul 19, 13:50 UTCJul 19, 16:30 UTC2h 40m
2026-07-19 SWR5AM ZRH → ATH Jul 19, 10:30 UTCJul 19, 12:40 UTC2h 10m
2026-07-19 SWR339H LUX → ZRH Jul 19, 08:35 UTCJul 19, 09:15 UTC40m
2026-07-19 SWR5CV ZRH → LUX Jul 19, 06:45 UTCJul 19, 07:25 UTC40m
2026-07-19 SWR4VE - Jul 19, 04:05 UTCJul 19, 05:25 UTC1h 20m
2026-07-18 SWR4KB ZRH → BCN Jul 18, 20:10 UTCJul 18, 21:35 UTC1h 25m
2026-07-18 SWR1YL BCN → ZRH Jul 18, 16:50 UTCJul 18, 18:15 UTC1h 25m
2026-07-18 SWR1958 ZRH → BCN Jul 18, 14:20 UTCJul 18, 15:40 UTC1h 20m
2026-07-18 SWR78Y VLC → ZRH Jul 18, 11:20 UTCJul 18, 13:00 UTC1h 40m
2026-07-18 SWR245T ZRH → VLC Jul 18, 07:40 UTCJul 18, 09:30 UTC1h 50m
2026-07-18 SWR8AD CPH → ZRH Jul 18, 04:45 UTCJul 18, 06:20 UTC1h 35m
2026-07-17 SWR44X ZRH → CPH Jul 17, 20:04 UTCJul 17, 21:25 UTC1h 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-JDL page for operator, model, and routing details .

Mode-S 4B181D frequently asked

What is Mode-S code 4B181D?
4B181D is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JDL.
Where is Mode-S 4B181D registered?
Mode-S code 4B181D is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B181D broadcasting right now?
Yes. Mode-S 4B181D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B181D, octal 22614035, decimal 4,921,373.
What flights does 4B181D operate?
Mode-S 4B181D has broadcast 20 distinct callsigns, including SWR2120, SWR1ET, SWR438A, SWR21M, SWR1958.