Apparatus

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sensors Mode-S transponder

4B1A26

ICAO 24-bit transponder address · allocated to Switzerland

Currently assigned to HB-JXM · AIRBUS A-320

Hex
4B1A26
Octal
22615046
Decimal
4,921,894
Country
CH
Tail
HB-JXM
Type
A320
No current signal · last broadcast Jul 26, 18:10 UTC
Flights observed
634
Distinct callsigns
20
Country
CH
Last broadcast
Jul 26, 18:10 UTC

Last known position

Most recent position reported by Mode-S 4B1A26.

Country allocation

The ICAO 24-bit address 4B1A26 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
EZS51JQ - 7 2026-07-20
EJU91PC - 7 2026-05-27
EZS83JY Easyjet Switzerland 6 2026-05-27
EZS79YP Easyjet Switzerland 6 2026-05-20
EZS68ME - 6 2026-07-09
EZS64QE - 6 2026-07-18
EZS63BD - 6 2026-05-20
EZS59MQ - 6 2026-07-23
EZS52RH - 6 2026-07-09
EZS45MR - 6 2026-07-09
EZS35JU Easyjet Switzerland 6 2026-05-25
EZS27FR Easyjet Switzerland 6 2026-05-25
EZS27BL Easyjet Switzerland 6 2026-07-18
EZS23YH - 6 2026-07-23
EZS18GT Easyjet Switzerland 6 2026-05-27
EZS13BL - 6 2026-05-28
EJU17TF - 6 2026-05-27
EZS89GX - 5 2026-07-08
EZS82KM Easyjet Switzerland 5 2026-06-23
EZS62TJ Easyjet Switzerland 5 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 EJU17CF IBZ → NTE Jul 26, 16:40 UTCJul 26, 18:10 UTC1h 30m
2026-07-26 EJU4769 NTE → TFS Jul 26, 13:45 UTCJul 26, 15:10 UTC1h 25m
2026-07-26 EZS62TJ GVA → NTE Jul 26, 09:15 UTCJul 26, 10:20 UTC1h 5m
2026-07-26 EZS84LU BOD → GVA Jul 26, 07:10 UTCJul 26, 08:20 UTC1h 10m
2026-07-26 EZS46NT GVA → BOD Jul 26, 05:30 UTCJul 26, 06:20 UTC50m
2026-07-25 EJU85PK ALC → GVA Jul 25, 19:45 UTCJul 25, 21:20 UTC1h 35m
2026-07-25 EJU81HV GVA → ALC Jul 25, 16:05 UTCJul 25, 17:55 UTC1h 50m
2026-07-25 EZS1510 SPU → GVA Jul 25, 14:00 UTCJul 25, 15:15 UTC1h 15m
2026-07-25 EZS1509 - Jul 25, 11:45 UTCJul 25, 12:50 UTC1h 5m
2026-07-25 EJU52WT SCQ → GVA Jul 25, 08:30 UTCJul 25, 10:20 UTC1h 50m
2026-07-25 EJU82PN GVA → SCQ Jul 25, 05:35 UTCJul 25, 07:30 UTC1h 55m
2026-07-24 EZS1356 LPA → GVA Jul 24, 18:55 UTCJul 24, 19:40 UTC45m
2026-07-24 EZS53XR - Jul 24, 18:05 UTCJul 24, 18:15 UTC10m
2026-07-24 EZS53XR GVA → NCE Jul 24, 17:10 UTCJul 24, 17:55 UTC45m
2026-07-24 EZS79FT CHQ → GVA Jul 24, 13:15 UTCJul 24, 16:05 UTC2h 50m
2026-07-24 EZS49PB GVA → CHQ Jul 24, 09:45 UTCJul 24, 12:05 UTC2h 20m
2026-07-24 EZS27XP BIO → GVA Jul 24, 06:50 UTCJul 24, 08:00 UTC1h 10m
2026-07-24 EZS59QK GVA → BIO Jul 24, 04:30 UTCJul 24, 05:35 UTC1h 5m
2026-07-23 EZS59MQ LGW → GVA Jul 23, 19:30 UTCJul 23, 20:35 UTC1h 5m
2026-07-23 EZS23YH GVA → LGW Jul 23, 17:20 UTCJul 23, 18:35 UTC1h 15m
2026-07-23 EZS82UP - Jul 23, 14:20 UTCJul 23, 16:20 UTC2h 0m
2026-07-23 EZS19CP GVA → CFU Jul 23, 11:00 UTCJul 23, 12:30 UTC1h 30m
2026-07-23 EJU52WT SCQ → GVA Jul 23, 07:15 UTCJul 23, 08:55 UTC1h 40m
2026-07-23 EJU82PN GVA → SCQ Jul 23, 04:15 UTCJul 23, 06:20 UTC2h 5m
2026-07-22 EZS78GR VLC → GVA Jul 22, 18:55 UTCJul 22, 20:25 UTC1h 30m
2026-07-22 EZS14EZ GVA → VLC Jul 22, 16:20 UTCJul 22, 17:55 UTC1h 35m
2026-07-22 EZS54RD OPO → GVA Jul 22, 13:35 UTCJul 22, 15:25 UTC1h 50m
2026-07-22 EZS74RG GVA → OPO Jul 22, 11:40 UTCJul 22, 12:40 UTC1h 0m
2026-07-22 EJU53LX GVA → ALC Jul 22, 04:10 UTCJul 22, 10:25 UTC6h 15m
2026-07-21 EZS67AR RAK → GVA Jul 21, 17:40 UTCJul 21, 20:15 UTC2h 35m
2026-07-21 EZS58KB GVA → RAK Jul 21, 13:50 UTCJul 21, 16:25 UTC2h 35m
2026-07-21 EZS47HC - Jul 21, 10:35 UTCJul 21, 12:00 UTC1h 25m
2026-07-21 EZS91DA GVA → SPU Jul 21, 07:55 UTCJul 21, 08:55 UTC1h 0m
2026-07-21 EZS1386 NCE → GVA Jul 21, 06:10 UTCJul 21, 06:55 UTC45m
2026-07-21 EZS12VL GVA → NCE Jul 21, 04:30 UTCJul 21, 05:10 UTC40m
2026-07-20 EZS18AR LIS → GVA Jul 20, 19:05 UTCJul 20, 20:55 UTC1h 50m
2026-07-20 EZS62YX GVA → LIS Jul 20, 15:30 UTCJul 20, 17:55 UTC2h 25m
2026-07-20 EZS49HP CPH → GVA Jul 20, 12:30 UTCJul 20, 14:15 UTC1h 45m
2026-07-20 EZS1537 GVA → CPH Jul 20, 10:00 UTCJul 20, 11:40 UTC1h 40m
2026-07-20 EZS51JQ LGW → GVA Jul 20, 07:55 UTCJul 20, 09:05 UTC1h 10m
2026-07-20 EZS29KH BSL → LGW Jul 20, 05:05 UTCJul 20, 06:20 UTC1h 15m
2026-07-19 EZS575A NCE → BSL Jul 19, 21:20 UTCJul 19, 22:05 UTC45m
2026-07-19 EZS707L BSL → NCE Jul 19, 19:30 UTCJul 19, 20:20 UTC50m
2026-07-19 EZS952B - Jul 19, 17:45 UTCJul 19, 18:45 UTC1h 0m
2026-07-19 EZS473H BSL → TLS Jul 19, 14:20 UTCJul 19, 15:30 UTC1h 10m
2026-07-19 EZS56RW BSL → FUE Jul 19, 04:25 UTCJul 19, 12:55 UTC8h 30m
2026-07-18 EZS64LP - Jul 18, 20:05 UTCJul 18, 22:50 UTC2h 45m
2026-07-18 EZS34KT - Jul 18, 15:45 UTCJul 18, 18:50 UTC3h 5m
2026-07-18 EZS64QE PMO → BSL Jul 18, 11:25 UTCJul 18, 13:05 UTC1h 40m
2026-07-18 EZS27BL BSL → PMO Jul 18, 08:30 UTCJul 18, 10:05 UTC1h 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-JXM page for operator, model, and routing details .

Mode-S 4B1A26 frequently asked

What is Mode-S code 4B1A26?
4B1A26 is an ICAO 24-bit transponder address. Allocated to Switzerland. Assigned to HB-JXM.
Where is Mode-S 4B1A26 registered?
Mode-S code 4B1A26 is allocated to Switzerland (CH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B1A26 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B1A26, octal 22615046, decimal 4,921,894.
What flights does 4B1A26 operate?
Mode-S 4B1A26 has broadcast 20 distinct callsigns, including EZS51JQ, EJU91PC, EZS83JY, EZS79YP, EZS68ME.