Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4B1900

ICAO 24-bit transponder address · allocated to Switzerland

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

Hex
4B1900
Octal
22614400
Decimal
4,921,600
Country
CH
Tail
HB-JME
Type
A343
Broadcasting now · callsign EDW57P · 36,000 ft
Flights observed
183
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 18:15 UTC

Current position

4B1900 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B1900 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
SWR87F - 23 2026-07-19
SWR1LE - 22 2026-07-19
EDW5L - 19 2026-07-14
EDW34N Edelweiss Air 18 2026-07-26
EDW35Y Edelweiss Air 17 2026-07-26
EDW25 - 17 2026-07-11
EDW4K - 15 2026-07-13
EDW86 Edelweiss Air 12 2026-06-11
EDW24 - 12 2026-07-11
EDW87 Edelweiss Air 7 2026-06-11
EDW67 Edelweiss Air 4 2026-07-21
EDW58T - 3 2026-07-17
EDW57P - 2 2026-07-17
EDW66 - 1 2026-07-17
EDW49Q Edelweiss Air 1 2026-04-30
EDW45L Edelweiss Air 1 2026-04-30
EDW3A Edelweiss Air 1 2026-04-22
EDW38TD Edelweiss Air 1 2026-05-27
EDW349E Edelweiss Air 1 2026-05-27
EDW2M Edelweiss Air 1 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EDW34N ZRH → PUJ Jul 26, 16:10 UTCJul 26, 18:15 UTC2h 5m
2026-07-26 EDW35Y PUJ → ZRH Jul 26, 12:55 UTCJul 26, 13:40 UTC45m
2026-07-25 EDW35Y PUJ → ZRH Jul 25, 19:45 UTCJul 26, 11:15 UTC15h 31m
2026-07-25 EDW34N ZRH → PUJ Jul 25, 12:05 UTCJul 26, 11:15 UTC23h 11m
2026-07-25 EDW34N ZRH → PUJ Jul 25, 11:55 UTCJul 26, 03:20 UTC15h 25m
2026-07-24 EDW1300 ZRH → ZRH Jul 24, 14:55 UTCJul 25, 04:55 UTC14h 0m
2026-07-21 EDW67 MLE → ZRH Jul 21, 22:25 UTCJul 22, 17:00 UTC18h 35m
2026-07-21 EDW67 MLE → ZRH Jul 21, 20:05 UTCJul 22, 17:00 UTC20h 55m
2026-07-21 EDW67 MLE → ZRH Jul 21, 19:05 UTCJul 22, 17:00 UTC21h 55m
2026-07-20 EDW201T LPA → ZRH Jul 20, 14:00 UTCJul 20, 17:15 UTC3h 15m
2026-07-20 EDW200E - Jul 20, 07:50 UTCJul 20, 11:35 UTC3h 45m
2026-07-19 SWR87F YUL → ZRH Jul 19, 21:15 UTCJul 20, 04:20 UTC7h 5m
2026-07-19 SWR1LE ZRH → YUL Jul 19, 11:20 UTCJul 19, 19:00 UTC7h 40m
2026-07-18 EDW67 MLE → ZRH Jul 18, 10:15 UTCJul 18, 16:35 UTC6h 20m
2026-07-17 EDW66 - Jul 17, 19:09 UTCJul 18, 01:00 UTC5h 50m
2026-07-17 EDW57P - Jul 17, 12:19 UTCJul 17, 13:50 UTC1h 30m
2026-07-17 EDW58T - Jul 17, 08:54 UTCJul 17, 10:30 UTC1h 35m
2026-07-16 SWR87F YUL → ZRH Jul 16, 22:00 UTCJul 17, 04:54 UTC6h 55m
2026-07-16 SWR1LE ZRH → YUL Jul 16, 12:09 UTCJul 16, 19:40 UTC7h 30m
2026-07-15 SWR87F YUL → ZRH Jul 15, 21:25 UTCJul 16, 04:25 UTC7h 0m
2026-07-15 SWR1LE ZRH → YUL Jul 15, 11:50 UTCJul 15, 19:20 UTC7h 30m
2026-07-14 EDW35Y - Jul 14, 14:05 UTCJul 15, 08:50 UTC18h 44m
2026-07-14 EDW34N ZRH → PUJ Jul 14, 12:25 UTCJul 15, 08:50 UTC20h 24m
2026-07-14 EDW5L TPA → ZRH Jul 14, 00:05 UTCJul 14, 09:00 UTC8h 55m
2026-07-13 EDW4K ZRH → TPA Jul 13, 12:25 UTCJul 13, 22:10 UTC9h 45m
2026-07-13 EDW35Y - Jul 13, 00:30 UTCJul 13, 09:15 UTC8h 45m
2026-07-12 EDW34N ZRH → PUJ Jul 12, 12:50 UTCJul 12, 21:15 UTC8h 25m
2026-07-11 EDW25 CUN → ZRH Jul 11, 23:40 UTCJul 12, 09:35 UTC9h 55m
2026-07-11 EDW24 ZRH → CUN Jul 11, 11:25 UTCJul 11, 21:45 UTC10h 20m
2026-07-11 SWR87F - Jul 11, 02:05 UTCJul 11, 04:15 UTC2h 10m
2026-07-10 SWR87F - Jul 10, 21:25 UTCJul 10, 22:25 UTC1h 0m
2026-07-10 SWR1LE ZRH → YUL Jul 10, 11:15 UTCJul 10, 19:00 UTC7h 45m
2026-07-07 EDW5L TPA → ZRH Jul 7, 00:35 UTCJul 7, 09:30 UTC8h 55m
2026-07-06 EDW4K ZRH → TPA Jul 6, 12:10 UTCJul 6, 22:00 UTC9h 50m
2026-07-05 EDW35Y - Jul 5, 14:05 UTCJul 6, 08:40 UTC18h 35m
2026-07-05 EDW34N ZRH → PUJ Jul 5, 13:05 UTCJul 6, 08:40 UTC19h 35m
2026-07-04 EDW25 CUN → ZRH Jul 4, 23:40 UTCJul 5, 09:35 UTC9h 55m
2026-07-04 EDW24 ZRH → CUN Jul 4, 11:00 UTCJul 4, 21:35 UTC10h 35m
2026-07-03 SWR87F YUL → ZRH Jul 3, 22:30 UTCJul 4, 05:15 UTC6h 45m
2026-07-03 SWR1LE ZRH → YUL Jul 3, 12:20 UTCJul 3, 20:20 UTC8h 0m
2026-07-03 EDW5L TPA → ZRH Jul 3, 00:20 UTCJul 3, 09:05 UTC8h 45m
2026-07-02 EDW4K ZRH → TPA Jul 2, 12:25 UTCJul 2, 22:20 UTC9h 55m
2026-07-01 EDW25 CUN → ZRH Jul 1, 00:10 UTCJul 1, 10:10 UTC10h 0m
2026-06-30 EDW24 ZRH → CUN Jun 30, 11:10 UTCJun 30, 21:55 UTC10h 45m
2026-06-28 SWR87F YUL → ZRH Jun 28, 22:45 UTCJun 29, 05:09 UTC6h 25m
2026-06-28 SWR1LE ZRH → YUL Jun 28, 13:00 UTCJun 28, 20:39 UTC7h 40m
2026-06-27 EDW5L TPA → ZRH Jun 27, 01:35 UTCJun 27, 10:00 UTC8h 25m
2026-06-26 EDW4K ZRH → TPA Jun 26, 13:04 UTCJun 26, 23:00 UTC9h 55m
2026-06-26 EDW5L TPA → ZRH Jun 26, 02:00 UTCJun 26, 10:39 UTC8h 40m
2026-06-25 EDW4K ZRH → TPA Jun 25, 13:29 UTCJun 25, 23:19 UTC9h 50m

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

Mode-S 4B1900 frequently asked

What is Mode-S code 4B1900?
4B1900 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JME.
Where is Mode-S 4B1900 registered?
Mode-S code 4B1900 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1900 broadcasting right now?
Yes. Mode-S 4B1900 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1900, octal 22614400, decimal 4,921,600.
What flights does 4B1900 operate?
Mode-S 4B1900 has broadcast 20 distinct callsigns, including SWR87F, SWR1LE, EDW5L, EDW34N, EDW35Y.