Apparatus

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sensors Mode-S transponder

4B18FF

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JMD · AIRBUS A-340-300

Hex
4B18FF
Octal
22614377
Decimal
4,921,599
Country
CH
Tail
HB-JMD
Type
A343
No current signal · last broadcast 2h ago
Flights observed
104
Distinct callsigns
16
Country
CH
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4B18FF.

Country allocation

The ICAO 24-bit address 4B18FF 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 16 distinct

Callsign Airline Flights Last seen
SWR1LE Swiss International Air Lines 22 2026-05-29
SWR87F Swiss International Air Lines 19 2026-05-29
EDW5L Edelweiss Air 12 2026-05-27
EDW4K Edelweiss Air 11 2026-05-26
EDW86 Edelweiss Air 8 2026-05-28
EDW24 Edelweiss Air 8 2026-04-30
EDW25 Edelweiss Air 7 2026-04-30
EDW87 Edelweiss Air 5 2026-05-28
EDW35Y Edelweiss Air 5 2026-05-03
EDW3A Edelweiss Air 1 2026-04-29
EDW38TD Edelweiss Air 1 2026-05-13
EDW34N Edelweiss Air 1 2026-05-02
EDW349E Edelweiss Air 1 2026-05-13
EDW2M Edelweiss Air 1 2026-04-28
EDW135F - 1 2026-04-18
EDW131G Edelweiss Air 1 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SWR87F YUL → ZRH May 29, 22:40 UTCMay 29, 23:50 UTC1h 10m
2026-05-29 SWR1LE ZRH → YUL May 29, 12:20 UTCMay 29, 19:55 UTC7h 35m
2026-05-28 EDW87 CPT → ZRH May 28, 20:55 UTCMay 29, 07:55 UTC11h 0m
2026-05-28 EDW86 ZRH → CPT May 28, 18:45 UTCMay 28, 19:10 UTC25m
2026-05-28 EDW86 ZRH → CPT May 28, 08:05 UTCMay 28, 09:25 UTC1h 20m
2026-05-27 SWR87F YUL → ZRH May 27, 21:45 UTCMay 28, 04:45 UTC7h 0m
2026-05-27 SWR1LE ZRH → YUL May 27, 12:25 UTCMay 27, 19:40 UTC7h 15m
2026-05-27 EDW5L TPA → ZRH May 27, 00:19 UTCMay 27, 09:25 UTC9h 6m
2026-05-26 EDW4K ZRH → TPA May 26, 11:50 UTCMay 26, 21:44 UTC9h 55m
2026-05-25 SWR87F YUL → ZRH May 25, 23:35 UTCMay 26, 06:20 UTC6h 45m
2026-05-25 SWR1LE ZRH → YUL May 25, 13:05 UTCMay 25, 20:40 UTC7h 34m
2026-05-25 EDW5L TPA → ZRH May 25, 02:35 UTCMay 25, 10:05 UTC7h 30m
2026-05-24 EDW4K ZRH → TPA May 24, 12:00 UTCMay 24, 21:45 UTC9h 45m
2026-05-23 EDW5L TPA → ZRH May 23, 00:05 UTCMay 23, 08:55 UTC8h 49m
2026-05-22 EDW4K ZRH → TPA May 22, 12:10 UTCMay 22, 22:10 UTC10h 0m
2026-05-21 SWR87F YUL → ZRH May 21, 21:40 UTCMay 22, 04:10 UTC6h 30m
2026-05-21 SWR1LE ZRH → YUL May 21, 11:25 UTCMay 21, 19:00 UTC7h 35m
2026-05-20 SWR87F YUL → ZRH May 20, 21:20 UTCMay 21, 04:15 UTC6h 55m
2026-05-20 SWR1LE ZRH → YUL May 20, 11:20 UTCMay 20, 19:20 UTC8h 0m
2026-05-19 EDW87 CPT → ZRH May 19, 20:50 UTCMay 20, 07:55 UTC11h 6m
2026-05-19 EDW86 ZRH → CPT May 19, 18:10 UTCMay 19, 18:35 UTC25m
2026-05-19 EDW86 ZRH → CPT May 19, 07:55 UTCMay 19, 13:55 UTC6h 0m
2026-05-18 SWR87F YUL → ZRH May 18, 21:15 UTCMay 19, 04:10 UTC6h 55m
2026-05-18 SWR1LE ZRH → YUL May 18, 11:35 UTCMay 18, 19:00 UTC7h 24m
2026-05-17 SWR87F YUL → ZRH May 17, 21:30 UTCMay 18, 04:20 UTC6h 50m
2026-05-17 SWR1LE ZRH → YUL May 17, 11:01 UTCMay 17, 18:50 UTC7h 50m
2026-05-15 EDW5L TPA → ZRH May 15, 23:55 UTCMay 16, 08:51 UTC8h 56m
2026-05-15 EDW4K ZRH → TPA May 15, 11:45 UTCMay 15, 22:00 UTC10h 14m
2026-05-14 SWR87F YUL → ZRH May 14, 21:10 UTCMay 15, 04:05 UTC6h 55m
2026-05-14 SWR1LE ZRH → YUL May 14, 11:05 UTCMay 14, 18:55 UTC7h 50m
2026-05-13 EDW349E HER → ZRH May 13, 11:10 UTCMay 13, 14:00 UTC2h 50m
2026-05-13 EDW38TD ZRH → HER May 13, 07:00 UTCMay 13, 09:15 UTC2h 15m
2026-05-11 EDW5L TPA → ZRH May 11, 00:05 UTCMay 11, 09:10 UTC9h 5m
2026-05-10 EDW4K ZRH → TPA May 10, 11:50 UTCMay 10, 21:59 UTC10h 10m
2026-05-09 EDW87 CPT → ZRH May 9, 20:49 UTCMay 10, 07:55 UTC11h 5m
2026-05-09 EDW86 ZRH → CPT May 9, 18:20 UTCMay 9, 18:45 UTC25m
2026-05-09 EDW86 ZRH → CPT May 9, 07:50 UTCMay 9, 13:40 UTC5h 50m
2026-05-08 SWR87F YUL → ZRH May 8, 21:50 UTCMay 9, 04:45 UTC6h 55m
2026-05-08 SWR1LE ZRH → YUL May 8, 11:44 UTCMay 8, 19:35 UTC7h 50m
2026-05-07 EDW87 CPT → ZRH May 7, 21:00 UTCMay 8, 08:05 UTC11h 4m
2026-05-07 EDW86 ZRH → CPT May 7, 18:30 UTCMay 7, 18:50 UTC20m
2026-05-07 EDW86 ZRH → CPT May 7, 08:00 UTCMay 7, 14:05 UTC6h 5m
2026-05-06 SWR87F YUL → ZRH May 6, 21:15 UTCMay 7, 04:10 UTC6h 55m
2026-05-06 SWR1LE ZRH → YUL May 6, 10:55 UTCMay 6, 18:45 UTC7h 50m
2026-05-05 EDW5L TPA → ZRH May 5, 23:25 UTCMay 6, 08:10 UTC8h 45m
2026-05-05 EDW4K ZRH → TPA May 5, 11:40 UTCMay 5, 21:35 UTC9h 55m
2026-05-03 SWR87F YUL → ZRH May 3, 21:10 UTCMay 4, 04:15 UTC7h 5m
2026-05-03 SWR1LE ZRH → YUL May 3, 11:20 UTCMay 3, 18:55 UTC7h 35m
2026-05-03 EDW35Y PUJ → ZRH May 3, 00:25 UTCMay 3, 08:45 UTC8h 19m
2026-05-02 EDW34N ZRH → PUJ May 2, 11:40 UTCMay 2, 20:40 UTC9h 0m

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

Mode-S 4B18FF frequently asked

What is Mode-S code 4B18FF?
4B18FF is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JMD.
Where is Mode-S 4B18FF registered?
Mode-S code 4B18FF is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B18FF broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B18FF, octal 22614377, decimal 4,921,599.
What flights does 4B18FF operate?
Mode-S 4B18FF has broadcast 16 distinct callsigns, including SWR1LE, SWR87F, EDW5L, EDW4K, EDW86.