Apparatus

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sensors Mode-S transponder

4B15EF

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-IHZ · AIRBUS A-320

Hex
4B15EF
Octal
22612757
Decimal
4,920,815
Country
CH
Tail
HB-IHZ
Type
A320
No current signal · last broadcast 1h ago
Flights observed
394
Distinct callsigns
20
Country
CH
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4B15EF.

Country allocation

The ICAO 24-bit address 4B15EF 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
EDW370L - 14 2026-07-12
EDW49Q - 12 2026-07-11
EDW91CD - 11 2026-07-13
EDW371 - 11 2026-07-12
EDW36BD - 11 2026-07-13
EDW45L - 10 2026-07-11
EDW398E - 10 2026-07-13
EDW214A - 10 2026-06-26
EDW200E - 10 2026-07-11
EDW58T - 9 2026-07-14
EDW57P - 9 2026-07-14
EDW399L - 9 2026-07-13
EDW201T - 8 2026-07-11
EDW89PE Edelweiss Air 7 2026-06-09
EDW89P - 7 2026-07-10
EDW894T - 7 2026-06-09
EDW88Z - 7 2026-07-10
EDW69A Edelweiss Air 7 2026-06-22
EDW394 - 7 2026-07-10
EDW36J - 7 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EDW435 - Jul 14, 19:35 UTCJul 14, 20:30 UTC55m
2026-07-14 EDW434 - Jul 14, 17:35 UTCJul 14, 18:30 UTC55m
2026-07-14 EDW57P - Jul 14, 14:40 UTCJul 14, 16:10 UTC1h 30m
2026-07-14 EDW58T - Jul 14, 11:35 UTCJul 14, 13:05 UTC1h 30m
2026-07-14 EDW339 EFL → ZRH Jul 14, 08:00 UTCJul 14, 10:15 UTC2h 15m
2026-07-14 EDW338 ZRH → EFL Jul 14, 04:35 UTCJul 14, 06:45 UTC2h 10m
2026-07-13 EDW399L - Jul 13, 19:30 UTCJul 13, 21:10 UTC1h 40m
2026-07-13 EDW398E - Jul 13, 16:45 UTCJul 13, 18:20 UTC1h 35m
2026-07-13 EDW33CW - Jul 13, 13:10 UTCJul 13, 15:00 UTC1h 50m
2026-07-13 EDW332 - Jul 13, 09:50 UTCJul 13, 11:15 UTC1h 25m
2026-07-13 EDW91CD - Jul 13, 07:20 UTCJul 13, 08:35 UTC1h 15m
2026-07-13 EDW36BD - Jul 13, 04:45 UTCJul 13, 05:45 UTC1h 0m
2026-07-13 EDW36BD ZRH → ZRH Jul 13, 04:30 UTCJul 13, 04:35 UTC5m
2026-07-12 EDW598C JMK → ZRH Jul 12, 17:30 UTCJul 12, 20:05 UTC2h 35m
2026-07-12 EDW55Q ZRH → JMK Jul 12, 14:15 UTCJul 12, 16:35 UTC2h 20m
2026-07-12 EDW371 - Jul 12, 09:20 UTCJul 12, 12:55 UTC3h 35m
2026-07-12 EDW370L - Jul 12, 04:50 UTCJul 12, 08:01 UTC3h 10m
2026-07-11 EDW45L - Jul 11, 19:05 UTCJul 11, 20:50 UTC1h 45m
2026-07-11 EDW49Q - Jul 11, 16:40 UTCJul 11, 18:00 UTC1h 20m
2026-07-11 EDW201T - Jul 11, 11:30 UTCJul 11, 14:55 UTC3h 25m
2026-07-11 EDW200E - Jul 11, 05:55 UTCJul 11, 09:40 UTC3h 45m
2026-07-10 EDW36J - Jul 10, 17:30 UTCJul 10, 19:00 UTC1h 30m
2026-07-10 EDW394 - Jul 10, 14:55 UTCJul 10, 16:25 UTC1h 30m
2026-07-10 EDW89P CAG → ZRH Jul 10, 12:30 UTCJul 10, 13:50 UTC1h 20m
2026-07-10 EDW88Z - Jul 10, 10:00 UTCJul 10, 11:10 UTC1h 10m
2026-07-10 EDW7331 - Jul 10, 02:15 UTCJul 10, 04:30 UTC2h 15m
2026-07-09 EDW330Z - Jul 9, 21:05 UTCJul 9, 23:05 UTC2h 0m
2026-07-09 EDW371 - Jul 9, 08:25 UTCJul 9, 12:00 UTC3h 35m
2026-07-09 EDW370L - Jul 9, 04:05 UTCJul 9, 07:10 UTC3h 5m
2026-07-08 EDW315D BGO → ZRH Jul 8, 16:05 UTCJul 8, 17:50 UTC1h 45m
2026-07-08 EDW38N ZRH → BGO Jul 8, 12:45 UTCJul 8, 15:00 UTC2h 15m
2026-07-08 EDW195 - Jul 8, 08:00 UTCJul 8, 10:50 UTC2h 50m
2026-07-08 EDW194 - Jul 8, 04:20 UTCJul 8, 06:55 UTC2h 35m
2026-07-07 EDW445 - Jul 7, 18:15 UTCJul 7, 20:30 UTC2h 15m
2026-07-07 EDW45W ZRH → VAR Jul 7, 15:15 UTCJul 7, 17:10 UTC1h 55m
2026-07-07 EDW131G ZRH → ZRH Jul 7, 04:15 UTCJul 7, 13:50 UTC9h 35m
2026-07-06 EDW223X - Jul 6, 19:25 UTCJul 6, 20:55 UTC1h 30m
2026-07-06 EDW721D - Jul 6, 16:45 UTCJul 6, 18:00 UTC1h 15m
2026-07-06 EDW33CW - Jul 6, 13:15 UTCJul 6, 15:00 UTC1h 45m
2026-07-06 EDW332 - Jul 6, 10:00 UTCJul 6, 11:45 UTC1h 45m
2026-07-06 EDW91CD OLB → ZRH Jul 6, 06:50 UTCJul 6, 08:00 UTC1h 10m
2026-07-06 EDW36BD ZRH → OLB Jul 6, 04:30 UTCJul 6, 05:35 UTC1h 5m
2026-07-05 EDW31U - Jul 5, 18:10 UTCJul 5, 20:55 UTC2h 45m
2026-07-05 EDW97F - Jul 5, 14:35 UTCJul 5, 16:55 UTC2h 20m
2026-07-05 SWR5EZ ALC → ZRH Jul 5, 11:10 UTCJul 5, 13:05 UTC1h 55m
2026-07-05 SWR1V ZRH → ALC Jul 5, 07:50 UTCJul 5, 09:50 UTC2h 0m
2026-07-05 EDW171 TBS → ZRH Jul 5, 02:15 UTCJul 5, 06:35 UTC4h 20m
2026-07-04 EDW170 - Jul 4, 21:10 UTCJul 5, 00:45 UTC3h 35m
2026-07-04 EDW435 - Jul 4, 18:35 UTCJul 4, 19:30 UTC55m
2026-07-04 EDW434 - Jul 4, 16:40 UTCJul 4, 17:30 UTC50m

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

Mode-S 4B15EF frequently asked

What is Mode-S code 4B15EF?
4B15EF is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-IHZ.
Where is Mode-S 4B15EF registered?
Mode-S code 4B15EF is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B15EF broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B15EF, octal 22612757, decimal 4,920,815.
What flights does 4B15EF operate?
Mode-S 4B15EF has broadcast 20 distinct callsigns, including EDW370L, EDW49Q, EDW91CD, EDW371, EDW36BD.