Apparatus

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sensors Mode-S transponder

4B028B

ICAO 24-bit transponder address · allocated to Switzerland

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

Hex
4B028B
Octal
22601213
Decimal
4,915,851
Country
CH
Tail
HB-AZB
Type
E290
Transponder active on ground
Flights observed
323
Distinct callsigns
20
Country
CH
Last broadcast
54m ago

Last known position

Most recent position reported by Mode-S 4B028B.

Country allocation

The ICAO 24-bit address 4B028B 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
SWR7PW Swiss International Air Lines 7 2026-05-27
SWR166M Swiss International Air Lines 7 2026-05-27
SWR564 Swiss International Air Lines 6 2026-05-20
SWR47D Swiss International Air Lines 6 2026-05-16
SWR44L Swiss International Air Lines 6 2026-05-16
SWR2VF - 6 2026-05-01
SWR880E Swiss International Air Lines 5 2026-05-19
SWR85D Swiss International Air Lines 5 2026-05-12
SWR7DF Swiss International Air Lines 5 2026-05-25
SWR4EA - 5 2026-05-20
SWR3MD Swiss International Air Lines 5 2026-05-25
SWR2WX Swiss International Air Lines 5 2026-05-30
SWR2LE Swiss International Air Lines 5 2026-05-01
SWR9ZV Swiss International Air Lines 4 2026-05-29
SWR9MY Swiss International Air Lines 4 2026-05-24
SWR896B Swiss International Air Lines 4 2026-05-29
SWR7GK Swiss International Air Lines 4 2026-05-12
SWR74A Swiss International Air Lines 4 2026-05-20
SWR51D - 4 2026-05-17
SWR4AH Swiss International Air Lines 4 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SWR2WX CPH → ZRH May 30, 08:05 UTCMay 30, 08:45 UTC40m
2026-05-30 SWR193T ZRH → CPH May 30, 05:40 UTCMay 30, 07:05 UTC1h 25m
2026-05-29 SWR3BY BER → ZRH May 29, 17:20 UTCMay 29, 18:25 UTC1h 5m
2026-05-29 SWR23F ZRH → BER May 29, 14:55 UTCMay 29, 16:05 UTC1h 10m
2026-05-29 SWR896B MUC → ZRH May 29, 09:40 UTCMay 29, 10:25 UTC45m
2026-05-29 SWR1102 ZRH → MUC May 29, 07:45 UTCMay 29, 08:15 UTC30m
2026-05-29 SWR9ZV ZRH → OSL May 29, 06:00 UTCMay 29, 06:35 UTC35m
2026-05-28 SWR1108 ZRH → MUC May 28, 19:25 UTCMay 28, 19:55 UTC30m
2026-05-28 SWR9YH LUX → ZRH May 28, 17:45 UTCMay 28, 18:20 UTC35m
2026-05-28 SWR3AG ZRH → LUX May 28, 16:15 UTCMay 28, 16:55 UTC40m
2026-05-28 SWR3DY STR → ZRH May 28, 13:25 UTCMay 28, 13:50 UTC25m
2026-05-28 SWR1DT ZRH → STR May 28, 11:20 UTCMay 28, 11:45 UTC25m
2026-05-28 SWR9ZA OPO → ZRH May 28, 07:55 UTCMay 28, 10:05 UTC2h 10m
2026-05-28 SWR2LM ZRH → FRA May 28, 04:35 UTCMay 28, 06:40 UTC2h 5m
2026-05-27 SWR9GD - May 27, 17:50 UTCMay 27, 19:30 UTC1h 40m
2026-05-27 SWR3WZ ZRH → WAW May 27, 15:15 UTCMay 27, 16:45 UTC1h 30m
2026-05-27 SWR166M MUC → ZRH May 27, 13:30 UTCMay 27, 14:05 UTC35m
2026-05-27 SWR7PW ZRH → MUC May 27, 11:35 UTCMay 27, 12:10 UTC35m
2026-05-27 SWR241D MAD → ZRH May 27, 08:50 UTCMay 27, 10:30 UTC1h 40m
2026-05-27 SWR430H ZRH → MAD May 27, 05:19 UTCMay 27, 07:10 UTC1h 50m
2026-05-26 SWR7TE MLA → ZRH May 26, 18:05 UTCMay 26, 20:00 UTC1h 55m
2026-05-26 SWR1794 ZRH → MLA May 26, 15:09 UTCMay 26, 17:04 UTC1h 55m
2026-05-26 SWR457 LCY → ZRH May 26, 12:24 UTCMay 26, 13:40 UTC1h 15m
2026-05-26 SWR4AH ZRH → LCY May 26, 10:14 UTCMay 26, 11:24 UTC1h 10m
2026-05-26 SWR917 DRS → ZRH May 26, 07:49 UTCMay 26, 08:50 UTC1h 0m
2026-05-26 SWR207L ZRH → DRS May 26, 05:49 UTCMay 26, 06:44 UTC55m
2026-05-25 SWR9GD - May 25, 18:05 UTCMay 25, 19:40 UTC1h 34m
2026-05-25 SWR3WZ ZRH → WAW May 25, 15:30 UTCMay 25, 17:00 UTC1h 30m
2026-05-25 SWR7DF MRS → ZRH May 25, 13:10 UTCMay 25, 14:05 UTC55m
2026-05-25 SWR3MD ZRH → MRS May 25, 11:15 UTCMay 25, 12:05 UTC50m
2026-05-25 SWR326W BRE → ZRH May 25, 08:40 UTCMay 25, 09:40 UTC1h 0m
2026-05-25 SWR850 ZRH → BRE May 25, 05:55 UTCMay 25, 06:55 UTC1h 0m
2026-05-24 SWR9MY BHX → ZRH May 24, 19:00 UTCMay 24, 20:35 UTC1h 35m
2026-05-24 SWR7T ZRH → BHX May 24, 16:30 UTCMay 24, 17:55 UTC1h 25m
2026-05-24 SWR166M MUC → ZRH May 24, 14:30 UTCMay 24, 15:05 UTC35m
2026-05-24 SWR7PW ZRH → MUC May 24, 12:30 UTCMay 24, 13:10 UTC40m
2026-05-24 SWR1841 ATH → ZRH May 24, 08:30 UTCMay 24, 10:55 UTC2h 25m
2026-05-24 SWR4ZH ZRH → ATH May 24, 05:00 UTCMay 24, 07:20 UTC2h 20m
2026-05-23 SWR5VL BLQ → ZRH May 23, 18:05 UTCMay 23, 18:50 UTC45m
2026-05-23 SWR2CP ZRH → BLQ May 23, 16:35 UTCMay 23, 17:15 UTC40m
2026-05-23 SWR15Y BRU → ZRH May 23, 14:15 UTCMay 23, 15:00 UTC45m
2026-05-23 SWR74D ZRH → BRU May 23, 12:20 UTCMay 23, 13:10 UTC50m
2026-05-23 SWR896B MUC → ZRH May 23, 10:05 UTCMay 23, 10:40 UTC35m
2026-05-23 SWR1102 ZRH → MUC May 23, 08:15 UTCMay 23, 08:50 UTC35m
2026-05-23 SWR9ZV ZRH → OSL May 23, 06:00 UTCMay 23, 06:45 UTC45m
2026-05-22 SWR1108 ZRH → MUC May 22, 20:00 UTCMay 22, 20:35 UTC35m
2026-05-22 SWR204K MXP → ZRH May 22, 18:30 UTCMay 22, 19:00 UTC30m
2026-05-22 SWR7WA ZRH → MXP May 22, 16:25 UTCMay 22, 17:00 UTC35m
2026-05-22 SWR7ZX WRO → ZRH May 22, 13:25 UTCMay 22, 14:35 UTC1h 10m
2026-05-22 SWR5TQ ZRH → WRO May 22, 10:55 UTCMay 22, 12:15 UTC1h 20m

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

Mode-S 4B028B frequently asked

What is Mode-S code 4B028B?
4B028B is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-AZB.
Where is Mode-S 4B028B registered?
Mode-S code 4B028B is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B028B broadcasting right now?
Mode-S 4B028B is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B028B, octal 22601213, decimal 4,915,851.
What flights does 4B028B operate?
Mode-S 4B028B has broadcast 20 distinct callsigns, including SWR7PW, SWR166M, SWR564, SWR47D, SWR44L.