Apparatus

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sensors Mode-S transponder

4B1A2E

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JXU · AIRBUS A-320

Hex
4B1A2E
Octal
22615056
Decimal
4,921,902
Country
CH
Tail
HB-JXU
Type
A320
No current signal · last broadcast 6h ago
Flights observed
533
Distinct callsigns
20
Country
CH
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4B1A2E.

Country allocation

The ICAO 24-bit address 4B1A2E 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
EJU92KW easyJet Europe 9 2026-05-18
EJU31ZN easyJet Europe 9 2026-05-18
EJU96KT - 7 2026-05-14
EJU529H - 7 2026-05-18
EJU412C - 7 2026-05-18
EJU82PN - 6 2026-07-13
EZS72MD - 5 2026-07-13
EJU85TQ - 5 2026-05-09
EJU738J easyJet Europe 5 2026-05-17
EJU63KL easyJet Europe 5 2026-05-14
EJU572R easyJet Europe 5 2026-05-18
EJU351H easyJet Europe 5 2026-05-17
EJU169Y easyJet Europe 5 2026-05-18
EZS62HY - 4 2026-06-24
EZS48AX - 4 2026-06-24
EZS25QK - 4 2026-07-13
EJU91HD easyJet Europe 4 2026-05-09
EJU87EB easyJet Europe 4 2026-05-19
EJU845Y easyJet Europe 4 2026-05-20
EJU71GQ easyJet Europe 4 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 EZS25WG MLA → GVA Jul 14, 19:00 UTCJul 14, 21:05 UTC2h 5m
2026-07-14 EZS1573 - Jul 14, 16:25 UTCJul 14, 18:10 UTC1h 45m
2026-07-13 EZS89PM FCO → GVA Jul 13, 19:10 UTCJul 13, 20:20 UTC1h 10m
2026-07-13 EZS61HE GVA → FCO Jul 13, 16:55 UTCJul 13, 17:50 UTC55m
2026-07-13 EJU52WT - Jul 13, 13:45 UTCJul 13, 15:30 UTC1h 45m
2026-07-13 EJU82PN - Jul 13, 10:50 UTCJul 13, 12:45 UTC1h 55m
2026-07-13 EZS72MD OPO → GVA Jul 13, 07:40 UTCJul 13, 09:35 UTC1h 55m
2026-07-13 EZS25QK GVA → OPO Jul 13, 04:40 UTCJul 13, 06:50 UTC2h 10m
2026-07-12 EZS43JB RHO → GVA Jul 12, 17:05 UTCJul 12, 20:01 UTC2h 55m
2026-07-12 EZS62AV GVA → RHO Jul 12, 13:01 UTCJul 12, 15:50 UTC2h 50m
2026-07-12 EZS83TQ - Jul 12, 10:30 UTCJul 12, 11:55 UTC1h 25m
2026-07-12 EZS58ZV GVA → CAG Jul 12, 08:01 UTCJul 12, 09:10 UTC1h 10m
2026-07-12 EZS59XA NCE → GVA Jul 12, 06:10 UTCJul 12, 06:50 UTC40m
2026-07-12 EZS71RV GVA → NCE Jul 12, 04:25 UTCJul 12, 05:05 UTC40m
2026-07-11 EZS78KW FNC → GVA Jul 11, 18:35 UTCJul 11, 21:35 UTC3h 0m
2026-07-11 EZS45RN - Jul 11, 13:55 UTCJul 11, 17:35 UTC3h 40m
2026-07-11 EZS14VF LGW → GVA Jul 11, 11:40 UTCJul 11, 12:45 UTC1h 5m
2026-07-11 EZS91ZE - Jul 11, 09:05 UTCJul 11, 10:15 UTC1h 10m
2026-07-11 EZS59XA - Jul 11, 07:15 UTCJul 11, 07:55 UTC40m
2026-07-11 EZS71RV - Jul 11, 05:20 UTCJul 11, 06:05 UTC45m
2026-07-10 EZS42UZ - Jul 10, 17:20 UTCJul 10, 18:15 UTC55m
2026-07-10 EZS1421 - Jul 10, 14:30 UTCJul 10, 15:30 UTC1h 0m
2026-07-10 EZS19BN BEG → GVA Jul 10, 11:40 UTCJul 10, 13:25 UTC1h 45m
2026-07-10 EZS92DC GVA → BEG Jul 10, 09:05 UTCJul 10, 10:40 UTC1h 35m
2026-07-10 EZS47HC - Jul 10, 06:50 UTCJul 10, 08:00 UTC1h 10m
2026-07-10 EZS91DA - Jul 10, 04:20 UTCJul 10, 05:25 UTC1h 5m
2026-07-09 EZS17GH BOD → GVA Jul 9, 20:05 UTCJul 9, 21:10 UTC1h 5m
2026-07-09 EZS63WG GVA → BOD Jul 9, 18:15 UTCJul 9, 19:15 UTC1h 0m
2026-07-09 EZS34AF PRG → GVA Jul 9, 16:05 UTCJul 9, 17:15 UTC1h 10m
2026-07-09 EZS43HQ - Jul 9, 14:00 UTCJul 9, 15:10 UTC1h 10m
2026-07-09 EZS43JB RHO → GVA Jul 9, 09:30 UTCJul 9, 12:45 UTC3h 15m
2026-07-09 EZS62AV GVA → RHO Jul 9, 05:00 UTCJul 9, 07:55 UTC2h 55m
2026-07-08 EZS51BG NCE → GVA Jul 8, 20:25 UTCJul 8, 21:10 UTC45m
2026-07-08 EZS53VN GVA → NCE Jul 8, 19:05 UTCJul 8, 19:45 UTC40m
2026-07-08 EZS83TQ - Jul 8, 16:50 UTCJul 8, 18:10 UTC1h 20m
2026-07-08 EZS58ZV - Jul 8, 14:30 UTCJul 8, 15:45 UTC1h 15m
2026-07-08 EZS59MN NCE → GVA Jul 8, 12:15 UTCJul 8, 12:55 UTC40m
2026-07-08 EZS1395 - Jul 8, 10:30 UTCJul 8, 11:15 UTC45m
2026-07-08 EJU34HV - Jul 8, 07:25 UTCJul 8, 09:25 UTC2h 0m
2026-07-08 EJU1317 - Jul 8, 04:30 UTCJul 8, 06:25 UTC1h 55m
2026-07-07 EZS18AR LIS → GVA Jul 7, 19:15 UTCJul 7, 21:30 UTC2h 15m
2026-07-07 EZS62YX GVA → LIS Jul 7, 16:05 UTCJul 7, 18:20 UTC2h 15m
2026-07-07 EZS36FD PMO → GVA Jul 7, 13:20 UTCJul 7, 15:00 UTC1h 40m
2026-07-07 EZS82EN GVA → PMO Jul 7, 10:40 UTCJul 7, 12:10 UTC1h 30m
2026-07-07 EZS1534 DCI → GVA Jul 7, 07:40 UTCJul 7, 09:00 UTC1h 20m
2026-07-07 EZS1533 - Jul 7, 05:15 UTCJul 7, 06:35 UTC1h 20m
2026-07-06 EZS27XP - Jul 6, 20:10 UTCJul 6, 21:20 UTC1h 10m
2026-07-06 EZS59QK - Jul 6, 17:50 UTCJul 6, 18:55 UTC1h 5m
2026-07-06 EZS17GH BOD → GVA Jul 6, 15:45 UTCJul 6, 16:45 UTC1h 0m
2026-07-06 EZS63WG GVA → BOD Jul 6, 13:30 UTCJul 6, 14:25 UTC55m

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

Mode-S 4B1A2E frequently asked

What is Mode-S code 4B1A2E?
4B1A2E is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JXU.
Where is Mode-S 4B1A2E registered?
Mode-S code 4B1A2E is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1A2E broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1A2E, octal 22615056, decimal 4,921,902.
What flights does 4B1A2E operate?
Mode-S 4B1A2E has broadcast 20 distinct callsigns, including EJU92KW, EJU31ZN, EJU96KT, EJU529H, EJU412C.