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sensors Mode-S transponder

4B1A1E

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JXE · AIRBUS A-320

Hex
4B1A1E
Octal
22615036
Decimal
4,921,886
Country
CH
Tail
HB-JXE
Type
A320
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
567
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S 4B1A1E.

Country allocation

The ICAO 24-bit address 4B1A1E 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
EZS81AP Easyjet Switzerland 5 2026-07-23
EZS79ER - 5 2026-07-23
EZS78KD - 5 2026-07-06
EZS75JQ - 5 2026-07-06
EZS31QP - 5 2026-07-18
EJU738J easyJet Europe 5 2026-05-10
EJU71GQ easyJet Europe 5 2026-05-13
EJU68WB easyJet Europe 5 2026-05-13
EJU56ZQ easyJet Europe 5 2026-05-14
EJU351H easyJet Europe 5 2026-05-10
EJU13BV easyJet Europe 5 2026-05-13
EJU12WP easyJet Europe 5 2026-05-14
EZS98NZ - 4 2026-07-15
EZS91HZ - 4 2026-07-23
EZS91DA Easyjet Switzerland 4 2026-07-23
EZS83JY Easyjet Switzerland 4 2026-07-26
EZS81FQ - 4 2026-07-15
EZS72YG - 4 2026-07-23
EZS62TJ - 4 2026-07-17
EZS49JR - 4 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EZS18GT BUD → GVA Jul 26, 20:10 UTCJul 26, 21:30 UTC1h 20m
2026-07-26 EZS83JY GVA → BUD Jul 26, 17:45 UTCJul 26, 19:10 UTC1h 25m
2026-07-26 EZS54RD OPO → GVA Jul 26, 14:50 UTCJul 26, 16:50 UTC2h 0m
2026-07-26 EZS74RG GVA → OPO Jul 26, 12:05 UTCJul 26, 13:50 UTC1h 45m
2026-07-26 EJU17TF SVQ → GVA Jul 26, 07:25 UTCJul 26, 09:25 UTC2h 0m
2026-07-26 EJU91PC GVA → SVQ Jul 26, 04:40 UTCJul 26, 06:25 UTC1h 45m
2026-07-25 EZS51BG NCE → GVA Jul 25, 19:45 UTCJul 25, 20:25 UTC40m
2026-07-25 EZS53VN - Jul 25, 18:15 UTCJul 25, 18:55 UTC40m
2026-07-25 EZS63BD LIS → GVA Jul 25, 14:55 UTCJul 25, 16:55 UTC2h 0m
2026-07-25 EZS79YP GVA → LIS Jul 25, 11:35 UTCJul 25, 13:50 UTC2h 15m
2026-07-25 EZS43RY DJE → GVA Jul 25, 08:10 UTCJul 25, 10:10 UTC2h 0m
2026-07-25 EZS14ZV GVA → DJE Jul 25, 04:45 UTCJul 25, 06:25 UTC1h 40m
2026-07-24 EZS16QR EDI → GVA Jul 24, 20:35 UTCJul 24, 22:20 UTC1h 45m
2026-07-24 EZS62KF GVA → EDI Jul 24, 16:45 UTCJul 24, 18:45 UTC2h 0m
2026-07-24 EZS34AF OPO → GVA Jul 24, 14:15 UTCJul 24, 15:35 UTC1h 20m
2026-07-24 EZS43HQ GVA → PRG Jul 24, 11:30 UTCJul 24, 12:40 UTC1h 10m
2026-07-24 EZS37YZ TNG → GVA Jul 24, 08:10 UTCJul 24, 10:15 UTC2h 5m
2026-07-24 EZS1523 GVA → TOS Jul 24, 04:45 UTCJul 24, 07:05 UTC2h 20m
2026-07-23 EZS81AP OLB → GVA Jul 23, 20:30 UTCJul 23, 21:35 UTC1h 5m
2026-07-23 EZS79ER - Jul 23, 18:10 UTCJul 23, 19:05 UTC55m
2026-07-23 EZS49JR NCE → GVA Jul 23, 16:30 UTCJul 23, 17:05 UTC35m
2026-07-23 EZS91HZ GVA → NCE Jul 23, 14:30 UTCJul 23, 15:05 UTC35m
2026-07-23 EZS42JW LGW → GVA Jul 23, 11:55 UTCJul 23, 13:00 UTC1h 5m
2026-07-23 EZS72YG GVA → LGW Jul 23, 09:05 UTCJul 23, 10:25 UTC1h 20m
2026-07-23 EZS47HC SPU → GVA Jul 23, 06:45 UTCJul 23, 08:05 UTC1h 20m
2026-07-23 EZS91DA GVA → SPU Jul 23, 04:25 UTCJul 23, 05:30 UTC1h 5m
2026-07-22 EZS91PX CPH → GVA Jul 22, 19:05 UTCJul 22, 20:45 UTC1h 40m
2026-07-22 EZS41MU GVA → CPH Jul 22, 16:35 UTCJul 22, 18:15 UTC1h 40m
2026-07-22 EZS1506 AQJ → GVA Jul 22, 13:35 UTCJul 22, 15:15 UTC1h 40m
2026-07-22 EZS38RU - Jul 22, 11:10 UTCJul 22, 12:35 UTC1h 25m
2026-07-22 EJU82PN GVA → SCQ Jul 22, 05:15 UTCJul 22, 05:25 UTC10m
2026-07-21 EZS18AR LIS → GVA Jul 21, 18:40 UTCJul 21, 20:40 UTC2h 0m
2026-07-21 EZS62YX GVA → LIS Jul 21, 15:20 UTCJul 21, 17:45 UTC2h 25m
2026-07-21 EZS43RY - Jul 21, 11:50 UTCJul 21, 13:45 UTC1h 55m
2026-07-21 EZS14ZV - Jul 21, 08:30 UTCJul 21, 10:15 UTC1h 45m
2026-07-20 EZS45GJ GVA → AMS Jul 20, 15:45 UTCJul 20, 16:40 UTC55m
2026-07-20 EZS49KR GVA → BIA Jul 20, 13:00 UTCJul 20, 13:55 UTC55m
2026-07-20 EZS47HC - Jul 20, 10:20 UTCJul 20, 11:35 UTC1h 15m
2026-07-20 EZS91DA GVA → SPU Jul 20, 04:25 UTCJul 20, 05:30 UTC1h 5m
2026-07-19 EZS91PX CPH → GVA Jul 19, 19:15 UTCJul 19, 20:50 UTC1h 35m
2026-07-19 EZS41MU GVA → CPH Jul 19, 16:45 UTCJul 19, 18:20 UTC1h 35m
2026-07-19 EZS19BN BEG → GVA Jul 19, 13:55 UTCJul 19, 15:45 UTC1h 50m
2026-07-19 EZS92DC GVA → BEG Jul 19, 11:05 UTCJul 19, 12:30 UTC1h 25m
2026-07-19 EZS81DV - Jul 19, 08:15 UTCJul 19, 09:45 UTC1h 30m
2026-07-19 EZS12DC - Jul 19, 05:15 UTCJul 19, 06:35 UTC1h 20m
2026-07-18 EJU79CA IBZ → GVA Jul 18, 19:20 UTCJul 18, 20:45 UTC1h 25m
2026-07-18 EJU85QE GVA → IBZ Jul 18, 16:50 UTCJul 18, 18:20 UTC1h 30m
2026-07-18 EZS32AW LGW → GVA Jul 18, 14:45 UTCJul 18, 15:55 UTC1h 10m
2026-07-18 EZS72YG - Jul 18, 11:55 UTCJul 18, 13:15 UTC1h 20m
2026-07-18 EZS31QP ATH → GVA Jul 18, 08:10 UTCJul 18, 10:45 UTC2h 35m

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

Mode-S 4B1A1E frequently asked

What is Mode-S code 4B1A1E?
4B1A1E is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JXE.
Where is Mode-S 4B1A1E registered?
Mode-S code 4B1A1E is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1A1E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1A1E, octal 22615036, decimal 4,921,886.
What flights does 4B1A1E operate?
Mode-S 4B1A1E has broadcast 20 distinct callsigns, including EZS81AP, EZS79ER, EZS78KD, EZS75JQ, EZS31QP.