Apparatus

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sensors Mode-S transponder

4B1817

ICAO 24-bit transponder address · allocated to Switzerland

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

Hex
4B1817
Octal
22614027
Decimal
4,921,367
Country
CH
Tail
HB-JDF
Type
A20N
Broadcasting now · callsign EDW752X · 17,750 ft
Flights observed
592
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 21:45 UTC

Current position

4B1817 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B1817 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
SWR49L Swiss International Air Lines 21 2026-07-25
SWR1886 Swiss International Air Lines 20 2026-07-24
SWR7VE - 11 2026-07-12
SWR26W - 11 2026-07-12
SWR438A Swiss International Air Lines 10 2026-07-20
SWR21M Swiss International Air Lines 9 2026-07-20
SWR4VE - 8 2026-07-16
SWR4KB - 8 2026-07-15
SWR8QE - 7 2026-06-18
SWR7DC - 7 2026-06-18
SWR5YV - 7 2026-07-18
SWR4ET Swiss International Air Lines 7 2026-07-18
SWR1LK Swiss International Air Lines 7 2026-07-18
SWR98G - 6 2026-07-18
SWR87C Swiss International Air Lines 6 2026-07-26
SWR5EZ - 6 2026-06-18
SWR4TD Swiss International Air Lines 6 2026-07-26
SWR40L - 6 2026-06-17
SWR3AP - 6 2026-06-18
SWR39L - 6 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWR96B ZRH → GVA Jul 26, 21:20 UTCJul 26, 21:45 UTC25m
2026-07-26 SWR105W HAM → ZRH Jul 26, 19:10 UTCJul 26, 20:15 UTC1h 5m
2026-07-26 SWR9D ZRH → HAM Jul 26, 16:40 UTCJul 26, 18:00 UTC1h 20m
2026-07-26 SWR4TD BCN → ZRH Jul 26, 13:35 UTCJul 26, 15:00 UTC1h 25m
2026-07-26 SWR87C ZRH → BCN Jul 26, 10:50 UTCJul 26, 12:05 UTC1h 15m
2026-07-26 SWR4CX BEG → ZRH Jul 26, 07:30 UTCJul 26, 09:00 UTC1h 30m
2026-07-26 SWR464L ZRH → BEG Jul 26, 05:05 UTCJul 26, 06:20 UTC1h 15m
2026-07-25 SWR3HY GVA → ZRH Jul 25, 09:25 UTCJul 25, 10:00 UTC35m
2026-07-25 SWR291X ZRH → GVA Jul 25, 07:35 UTCJul 25, 08:05 UTC30m
2026-07-25 SWR49L OTP → ZRH Jul 25, 03:40 UTCJul 25, 05:50 UTC2h 10m
2026-07-24 SWR1886 ZRH → OTP Jul 24, 20:25 UTCJul 24, 22:15 UTC1h 50m
2026-07-24 SWR388G HAM → ZRH Jul 24, 17:55 UTCJul 24, 18:55 UTC1h 0m
2026-07-24 SWR1TX ZRH → HAM Jul 24, 15:20 UTCJul 24, 16:35 UTC1h 15m
2026-07-24 SWR3PT ZRH → LHR Jul 24, 13:15 UTCJul 24, 13:50 UTC35m
2026-07-24 SWR533X ZRH → GVA Jul 24, 11:35 UTCJul 24, 12:10 UTC35m
2026-07-24 SWR3AV MAN → ZRH Jul 24, 08:40 UTCJul 24, 10:20 UTC1h 40m
2026-07-24 SWR5P ZRH → MAN Jul 24, 05:40 UTCJul 24, 07:15 UTC1h 35m
2026-07-23 SWR4Q - Jul 23, 17:05 UTCJul 23, 18:05 UTC1h 0m
2026-07-23 SWR841C - Jul 23, 14:45 UTCJul 23, 15:40 UTC55m
2026-07-23 SWR5MP LHR → LHR Jul 23, 11:35 UTCJul 23, 12:50 UTC1h 15m
2026-07-23 SWR8PZ ZRH → LHR Jul 23, 08:45 UTCJul 23, 10:15 UTC1h 30m
2026-07-23 SWR1ET AGP → ZRH Jul 23, 04:45 UTCJul 23, 06:50 UTC2h 5m
2026-07-22 SWR2120 ZRH → AGP Jul 22, 19:55 UTCJul 22, 22:15 UTC2h 20m
2026-07-22 SWR9YH LUX → ZRH Jul 22, 17:40 UTCJul 22, 18:25 UTC45m
2026-07-22 SWR3AG ZRH → LUX Jul 22, 16:10 UTCJul 22, 16:45 UTC35m
2026-07-22 SWR4TD - Jul 22, 13:50 UTCJul 22, 15:05 UTC1h 15m
2026-07-22 SWR87C ZRH → BCN Jul 22, 11:10 UTCJul 22, 12:20 UTC1h 10m
2026-07-21 SWR9VE ZRH → OPO Jul 21, 18:30 UTCJul 21, 19:50 UTC1h 20m
2026-07-21 SWR3GH ZRH → BCN Jul 21, 16:15 UTCJul 21, 17:35 UTC1h 20m
2026-07-21 SWR5CB BER → ZRH Jul 21, 14:00 UTCJul 21, 15:00 UTC1h 0m
2026-07-21 SWR1PL ZRH → BER Jul 21, 11:35 UTCJul 21, 12:40 UTC1h 5m
2026-07-21 SWR1HW ATH → ZRH Jul 21, 04:15 UTCJul 21, 06:50 UTC2h 35m
2026-07-20 SWR7MV ZRH → ATH Jul 20, 19:45 UTCJul 20, 21:50 UTC2h 5m
2026-07-20 SWR438A LHR → ZRH Jul 20, 16:40 UTCJul 20, 17:50 UTC1h 10m
2026-07-20 SWR21M ZRH → LHR Jul 20, 13:50 UTCJul 20, 15:25 UTC1h 35m
2026-07-20 SWR4KT - Jul 20, 09:10 UTCJul 20, 10:05 UTC55m
2026-07-20 SWR3VL - Jul 20, 07:15 UTCJul 20, 08:00 UTC45m
2026-07-20 SWR49L - Jul 20, 03:40 UTCJul 20, 06:00 UTC2h 20m
2026-07-19 SWR1886 ZRH → OTP Jul 19, 20:10 UTCJul 19, 21:55 UTC1h 45m
2026-07-19 SWR4TD BCN → ZRH Jul 19, 14:15 UTCJul 19, 15:40 UTC1h 25m
2026-07-19 SWR87C ZRH → BCN Jul 19, 11:15 UTCJul 19, 12:40 UTC1h 25m
2026-07-19 SWR5DA SJJ → ZRH Jul 19, 08:25 UTCJul 19, 09:45 UTC1h 20m
2026-07-19 SWR4PC ZRH → SJJ Jul 19, 06:10 UTCJul 19, 07:10 UTC1h 0m
2026-07-18 SWR1LK FRA → ZRH Jul 18, 19:15 UTCJul 18, 19:45 UTC30m
2026-07-18 SWR4ET ZRH → FRA Jul 18, 17:10 UTCJul 18, 18:10 UTC1h 0m
2026-07-18 SWR98G - Jul 18, 13:35 UTCJul 18, 16:00 UTC2h 25m
2026-07-18 SWR5YV - Jul 18, 10:20 UTCJul 18, 12:10 UTC1h 50m
2026-07-18 SWR2XL GVA → ZRH Jul 18, 08:25 UTCJul 18, 09:05 UTC40m
2026-07-18 SWR915W ZRH → GVA Jul 18, 06:05 UTCJul 18, 06:30 UTC25m
2026-07-17 SWR1LK FRA → ZRH Jul 17, 19:20 UTCJul 17, 19:55 UTC35m

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

Mode-S 4B1817 frequently asked

What is Mode-S code 4B1817?
4B1817 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JDF.
Where is Mode-S 4B1817 registered?
Mode-S code 4B1817 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1817 broadcasting right now?
Yes. Mode-S 4B1817 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1817, octal 22614027, decimal 4,921,367.
What flights does 4B1817 operate?
Mode-S 4B1817 has broadcast 20 distinct callsigns, including SWR49L, SWR1886, SWR7VE, SWR26W, SWR438A.