Apparatus

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sensors Mode-S transponder

4B0274

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-AYE · AIRBUS A-320neo

Hex
4B0274
Octal
22601164
Decimal
4,915,828
Country
CH
Tail
HB-AYE
Type
A20N
Broadcasting now · callsign EZS93EV · 26,650 ft
Flights observed
477
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 13:25 UTC

Current position

4B0274 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B0274 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
EZS72WT Easyjet Switzerland 13 2026-07-23
EZS53DK Easyjet Switzerland 9 2026-07-23
EJU98HB - 7 2026-05-23
EJU54LH easyJet Europe 7 2026-06-21
EJU47HM easyJet Europe 7 2026-05-23
EZS75UD Easyjet Switzerland 6 2026-07-21
EZS68ME - 6 2026-07-22
EZS21RX Easyjet Switzerland 6 2026-05-13
EJU85HR easyJet Europe 6 2026-07-20
EJU85DP easyJet Europe 6 2026-07-20
EZS9070 - 5 2026-06-24
EZS75BQ Easyjet Switzerland 5 2026-05-19
EZS68ZP Easyjet Switzerland 5 2026-05-19
EZS68EP Easyjet Switzerland 5 2026-07-21
EZS683R Easyjet Switzerland 5 2026-05-11
EZS64LP Easyjet Switzerland 5 2026-06-15
EZS52RH - 5 2026-07-15
EZS34EM Easyjet Switzerland 5 2026-05-13
EZS26LA - 5 2026-07-09
EJU16BQ - 5 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EZS41MA NTE → GVA Jul 26, 12:25 UTCJul 26, 13:25 UTC1h 0m
2026-07-26 EJU34EZ ACE → NTE Jul 26, 08:35 UTCJul 26, 11:30 UTC2h 55m
2026-07-26 EJU72BH NTE → ACE Jul 26, 04:15 UTCJul 26, 07:05 UTC2h 51m
2026-07-25 EJU9047 BSL → TLS Jul 25, 16:10 UTCJul 25, 17:00 UTC50m
2026-07-25 EJU792H - Jul 25, 13:15 UTCJul 25, 14:35 UTC1h 20m
2026-07-25 EJU582X CDG → CLY Jul 25, 09:35 UTCJul 25, 11:00 UTC1h 25m
2026-07-25 EJU9073 BER → ORY Jul 25, 06:30 UTCJul 25, 07:55 UTC1h 25m
2026-07-24 EJU9104 BSL → BCN Jul 24, 15:15 UTCJul 24, 16:40 UTC1h 25m
2026-07-23 EZS67CP BER → BSL Jul 23, 19:50 UTCJul 23, 20:45 UTC55m
2026-07-23 EZS83KB BSL → BER Jul 23, 17:30 UTCJul 23, 18:50 UTC1h 20m
2026-07-23 EZS65EW VCE → BSL Jul 23, 15:50 UTCJul 23, 16:40 UTC50m
2026-07-23 EZS83LE BSL → VCE Jul 23, 13:50 UTCJul 23, 14:30 UTC40m
2026-07-23 EZS53DK FNC → BSL Jul 23, 09:10 UTCJul 23, 12:25 UTC3h 15m
2026-07-23 EZS72WT BSL → FNC Jul 23, 04:15 UTCJul 23, 08:05 UTC3h 50m
2026-07-22 EZS71UA RMI → BSL Jul 22, 19:55 UTCJul 22, 21:05 UTC1h 10m
2026-07-22 EZS94WL - Jul 22, 18:10 UTCJul 22, 19:00 UTC50m
2026-07-22 EZS767P - Jul 22, 16:05 UTCJul 22, 17:15 UTC1h 10m
2026-07-22 EZS863R BSL → CLY Jul 22, 14:20 UTCJul 22, 15:20 UTC1h 0m
2026-07-22 EZS68ME - Jul 22, 11:35 UTCJul 22, 13:20 UTC1h 45m
2026-07-22 EZS295B BSL → BIQ Jul 22, 04:15 UTCJul 22, 05:25 UTC1h 10m
2026-07-21 EZS75UD HER → BSL Jul 21, 18:50 UTCJul 21, 21:45 UTC2h 55m
2026-07-21 EZS81MK - Jul 21, 15:00 UTCJul 21, 17:30 UTC2h 30m
2026-07-21 EZS71BM KEF → BSL Jul 21, 10:05 UTCJul 21, 13:25 UTC3h 20m
2026-07-21 EZS68EP BSL → KEF Jul 21, 04:30 UTCJul 21, 08:20 UTC3h 50m
2026-07-20 EZS575A NCE → BSL Jul 20, 23:45 UTCJul 20, 23:55 UTC10m
2026-07-20 EZS575A NCE → BSL Jul 20, 20:25 UTCJul 20, 21:15 UTC50m
2026-07-20 EZS707L BSL → NCE Jul 20, 18:25 UTCJul 20, 19:30 UTC1h 5m
2026-07-20 EZS707L BSL → NCE Jul 20, 17:30 UTCJul 20, 17:40 UTC10m
2026-07-20 EZS124Y AJA → BSL Jul 20, 16:20 UTCJul 20, 17:25 UTC1h 5m
2026-07-20 EZS548Q BSL → AJA Jul 20, 14:20 UTCJul 20, 15:25 UTC1h 5m
2026-07-20 EJU85DP IBZ → BSL Jul 20, 11:40 UTCJul 20, 13:20 UTC1h 40m
2026-07-20 EJU85HR BSL → IBZ Jul 20, 08:40 UTCJul 20, 10:25 UTC1h 45m
2026-07-20 EZS43PZ HAM → BSL Jul 20, 06:30 UTCJul 20, 07:45 UTC1h 15m
2026-07-20 EZS64HZ BSL → HAM Jul 20, 04:25 UTCJul 20, 05:35 UTC1h 10m
2026-07-19 EZS51TE HAM → BSL Jul 19, 19:45 UTCJul 19, 20:50 UTC1h 5m
2026-07-19 EZS82KM - Jul 19, 17:35 UTCJul 19, 18:45 UTC1h 10m
2026-07-19 EZS41BP - Jul 19, 14:00 UTCJul 19, 16:40 UTC2h 40m
2026-07-19 EZS82AW - Jul 19, 10:20 UTCJul 19, 12:45 UTC2h 25m
2026-07-19 EJU85DP IBZ → BSL Jul 19, 06:50 UTCJul 19, 08:25 UTC1h 35m
2026-07-19 EJU85HR BSL → IBZ Jul 19, 04:15 UTCJul 19, 06:00 UTC1h 45m
2026-07-18 EZS53DK - Jul 18, 19:45 UTCJul 18, 22:50 UTC3h 5m
2026-07-18 EZS72WT BSL → FNC Jul 18, 15:10 UTCJul 18, 19:00 UTC3h 50m
2026-07-17 EZS67UZ - Jul 17, 19:40 UTCJul 17, 21:34 UTC1h 55m
2026-07-17 EZS14LD ZRH → PRN Jul 17, 17:05 UTCJul 17, 18:29 UTC1h 25m
2026-07-17 EZS89GX - Jul 17, 13:25 UTCJul 17, 15:15 UTC1h 50m
2026-07-17 EZS29ZA - Jul 17, 10:55 UTCJul 17, 12:15 UTC1h 20m
2026-07-17 EZS51CE - Jul 17, 08:15 UTCJul 17, 09:35 UTC1h 20m
2026-07-17 EZS91JX - Jul 17, 05:35 UTCJul 17, 06:54 UTC1h 20m
2026-07-16 EZS349U BOD → BSL Jul 16, 15:35 UTCJul 16, 17:20 UTC1h 45m
2026-07-16 EZS753A - Jul 16, 13:30 UTCJul 16, 14:40 UTC1h 10m

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

Mode-S 4B0274 frequently asked

What is Mode-S code 4B0274?
4B0274 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-AYE.
Where is Mode-S 4B0274 registered?
Mode-S code 4B0274 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B0274 broadcasting right now?
Yes. Mode-S 4B0274 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B0274, octal 22601164, decimal 4,915,828.
What flights does 4B0274 operate?
Mode-S 4B0274 has broadcast 20 distinct callsigns, including EZS72WT, EZS53DK, EJU98HB, EJU54LH, EJU47HM.