Apparatus

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sensors Mode-S transponder

4B028D

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-AZD · EMBRAER ERJ-190-300

Hex
4B028D
Octal
22601215
Decimal
4,915,853
Country
CH
Tail
HB-AZD
Type
E290
No current signal · last broadcast Jul 26, 20:55 UTC
Flights observed
631
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 20:55 UTC

Last known position

Most recent position reported by Mode-S 4B028D.

Country allocation

The ICAO 24-bit address 4B028D 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
SWR7DF - 11 2026-07-21
SWR3MD - 11 2026-07-21
SWR8ZB Swiss International Air Lines 10 2026-07-21
SWR880E Swiss International Air Lines 10 2026-06-01
SWR74A Swiss International Air Lines 10 2026-06-02
SWR1108 - 10 2026-07-16
SWR9ZV Swiss International Air Lines 9 2026-07-17
SWR319V - 9 2026-07-12
SWR27Q Swiss International Air Lines 9 2026-07-21
SWR1102 - 9 2026-07-17
SWR9Q - 8 2026-07-12
SWR896B - 8 2026-07-17
SWR3AG - 8 2026-07-14
SWR9YH - 7 2026-07-14
SWR9TC - 7 2026-06-20
SWR84V - 7 2026-07-04
SWR7HL - 7 2026-07-04
SWR5AT - 7 2026-06-23
SWR9MY - 6 2026-07-12
SWR9LK - 6 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 OAW223 PMI → BRN Jul 26, 19:30 UTCJul 26, 20:50 UTC1h 20m
2026-07-26 OAW222 BRN → PMI Jul 26, 16:35 UTCJul 26, 18:15 UTC1h 40m
2026-07-26 OAW323 RHO → BRN Jul 26, 11:55 UTCJul 26, 14:50 UTC2h 55m
2026-07-26 OAW322 BRN → RHO Jul 26, 07:45 UTCJul 26, 10:30 UTC2h 45m
2026-07-25 OAW303 HER → BRN Jul 25, 17:40 UTCJul 25, 20:25 UTC2h 45m
2026-07-25 OAW302 BRN → HER Jul 25, 13:55 UTCJul 25, 16:10 UTC2h 15m
2026-07-24 OAW701 DJE → BRN Jul 24, 16:25 UTCJul 24, 18:30 UTC2h 5m
2026-07-24 OAW700 BRN → DJE Jul 24, 13:10 UTCJul 24, 15:10 UTC2h 0m
2026-07-24 OAW707 MIR → BRN Jul 24, 10:30 UTCJul 24, 12:05 UTC1h 35m
2026-07-24 OAW706 BRN → MIR Jul 24, 06:40 UTCJul 24, 08:20 UTC1h 40m
2026-07-23 OAW223 - Jul 23, 16:25 UTCJul 23, 17:50 UTC1h 25m
2026-07-23 OAW5226 SIR → PMI Jul 23, 13:55 UTCJul 23, 15:05 UTC1h 10m
2026-07-23 OAW5227 PMI → SIR Jul 23, 11:35 UTCJul 23, 12:55 UTC1h 20m
2026-07-23 OAW222 BRN → PMI Jul 23, 08:50 UTCJul 23, 10:10 UTC1h 20m
2026-07-22 OAW303 - Jul 22, 11:10 UTCJul 22, 13:50 UTC2h 40m
2026-07-21 SWR1PX NCE → ZRH Jul 21, 18:30 UTCJul 21, 18:50 UTC20m
2026-07-21 SWR1PX NCE → ZRH Jul 21, 17:30 UTCJul 21, 18:20 UTC50m
2026-07-21 SWR57C ZRH → NCE Jul 21, 15:35 UTCJul 21, 16:20 UTC45m
2026-07-21 SWR7DF - Jul 21, 13:20 UTCJul 21, 14:15 UTC55m
2026-07-21 SWR3MD ZRH → MRS Jul 21, 11:15 UTCJul 21, 12:15 UTC1h 0m
2026-07-21 SWR8ZB BHX → ZRH Jul 21, 08:35 UTCJul 21, 10:00 UTC1h 25m
2026-07-21 SWR27Q ZRH → BHX Jul 21, 05:40 UTCJul 21, 07:05 UTC1h 25m
2026-07-20 SWR849W - Jul 20, 18:40 UTCJul 20, 19:30 UTC50m
2026-07-20 SWR43E ZRH → DUS Jul 20, 16:45 UTCJul 20, 17:45 UTC1h 0m
2026-07-20 SWR5YW - Jul 20, 14:30 UTCJul 20, 15:40 UTC1h 10m
2026-07-20 SWR5LD - Jul 20, 11:35 UTCJul 20, 12:40 UTC1h 5m
2026-07-20 SWR3VB LCY → ZRH Jul 20, 09:00 UTCJul 20, 10:10 UTC1h 10m
2026-07-20 SWR3EZ ZRH → LCY Jul 20, 06:25 UTCJul 20, 07:50 UTC1h 25m
2026-07-19 SWR979E - Jul 19, 19:15 UTCJul 19, 20:30 UTC1h 15m
2026-07-19 SWR15V ZRH → BER Jul 19, 17:10 UTCJul 19, 18:15 UTC1h 5m
2026-07-19 SWR457 - Jul 19, 15:00 UTCJul 19, 16:05 UTC1h 5m
2026-07-19 SWR4AH ZRH → LCY Jul 19, 12:25 UTCJul 19, 14:00 UTC1h 35m
2026-07-19 SWR78Y VLC → ZRH Jul 19, 08:30 UTCJul 19, 10:10 UTC1h 40m
2026-07-19 SWR245T ZRH → VLC Jul 19, 05:20 UTCJul 19, 07:05 UTC1h 45m
2026-07-18 SWR8CM - Jul 18, 20:00 UTCJul 18, 21:00 UTC1h 0m
2026-07-18 SWR2VC ZRH → AMS Jul 18, 17:45 UTCJul 18, 18:50 UTC1h 5m
2026-07-18 SWR7PZ WAW → ZRH Jul 18, 14:10 UTCJul 18, 16:00 UTC1h 50m
2026-07-18 SWR139K ZRH → WAW Jul 18, 10:35 UTCJul 18, 12:05 UTC1h 30m
2026-07-18 SWR2PH GRZ → ZRH Jul 18, 08:20 UTCJul 18, 09:25 UTC1h 5m
2026-07-18 SWR77M ZRH → GRZ Jul 18, 06:30 UTCJul 18, 07:20 UTC50m
2026-07-17 SWR85D LCY → ZRH Jul 17, 19:49 UTCJul 17, 21:10 UTC1h 20m
2026-07-17 SWR7GK ZRH → LCY Jul 17, 17:09 UTCJul 17, 18:34 UTC1h 25m
2026-07-17 SWR9YP ZRH → LHR Jul 17, 14:44 UTCJul 17, 15:55 UTC1h 10m
2026-07-17 SWR9GE ZRH → BER Jul 17, 12:19 UTCJul 17, 13:25 UTC1h 5m
2026-07-17 SWR896B - Jul 17, 09:35 UTCJul 17, 10:10 UTC35m
2026-07-17 SWR1102 ZRH → MUC Jul 17, 07:55 UTCJul 17, 08:35 UTC40m
2026-07-17 SWR9ZV ZRH → OSL Jul 17, 06:00 UTCJul 17, 06:35 UTC35m
2026-07-16 SWR1108 - Jul 16, 20:19 UTCJul 16, 21:05 UTC45m
2026-07-16 SWR204K MXP → ZRH Jul 16, 18:55 UTCJul 16, 19:25 UTC30m
2026-07-16 SWR7WA ZRH → MXP Jul 16, 16:15 UTCJul 16, 16:49 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-AZD page for operator, model, and routing details .

Mode-S 4B028D frequently asked

What is Mode-S code 4B028D?
4B028D is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-AZD.
Where is Mode-S 4B028D registered?
Mode-S code 4B028D is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B028D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B028D, octal 22601215, decimal 4,915,853.
What flights does 4B028D operate?
Mode-S 4B028D has broadcast 20 distinct callsigns, including SWR7DF, SWR3MD, SWR8ZB, SWR880E, SWR74A.