Apparatus

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sensors Mode-S transponder

49D41E

ICAO 24-bit transponder address · allocated to Czech Republic

Currently assigned to OK-SWJ · BOEING 737 MAX 8

Hex
49D41E
Octal
22352036
Decimal
4,838,430
Country
CZ
Tail
OK-SWJ
Type
B38M
Broadcasting now · callsign TVS4106 · 37,000 ft
Flights observed
409
Distinct callsigns
20
Country
CZ
Last broadcast
Jul 26, 21:30 UTC

Current position

49D41E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 49D41E falls within the block assigned to Czech Republic (CZ) by ICAO Annex 10, Volume III. Every aircraft registered in Czech Republic 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
TVS3422 Smart Wings 10 2026-05-25
TVS3423 Smart Wings 9 2026-05-25
TVS3418 Smart Wings 8 2026-05-28
TVS3425 Smart Wings 7 2026-05-22
TVS3419 - 7 2026-05-28
TVS3427 Smart Wings 6 2026-05-23
TVS3426 Smart Wings 6 2026-05-23
TVS3424 Smart Wings 6 2026-05-22
TVS3417 Smart Wings 6 2026-05-27
TVS9EK - 5 2026-06-21
TVS4PR - 5 2026-07-14
TVS3PR - 5 2026-07-14
TVS3433 Smart Wings 5 2026-05-26
TVS3432 Smart Wings 5 2026-05-26
TVS3429 Smart Wings 5 2026-05-24
TVS3428 Smart Wings 5 2026-05-24
TVS3416 Smart Wings 5 2026-05-27
TVS2YZ - 5 2026-07-12
TVS91M - 4 2026-07-15
TVS53B - 4 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TVS3BD PRG → TLV Jul 26, 19:50 UTCJul 26, 21:30 UTC1h 40m
2026-07-26 TVS4BD LHR → PRG Jul 26, 16:30 UTCJul 26, 18:35 UTC2h 5m
2026-07-26 TVS2941 BOJ → PRG Jul 26, 12:40 UTCJul 26, 14:35 UTC1h 55m
2026-07-26 TVS2890 PED → BOJ Jul 26, 09:50 UTCJul 26, 11:15 UTC1h 25m
2026-07-26 TVS2891 BOJ → PED Jul 26, 06:55 UTCJul 26, 08:35 UTC1h 40m
2026-07-26 TVS2940 PRG → BOJ Jul 26, 03:40 UTCJul 26, 05:20 UTC1h 40m
2026-07-25 TVS2665 AYT → PRG Jul 25, 21:35 UTCJul 26, 00:25 UTC2h 50m
2026-07-25 TVS2664 PRG → AYT Jul 25, 17:25 UTCJul 25, 20:20 UTC2h 55m
2026-07-25 TVS2215 RHO → PRG Jul 25, 13:10 UTCJul 25, 16:00 UTC2h 50m
2026-07-25 TVS2214 PRG → RHO Jul 25, 09:35 UTCJul 25, 12:00 UTC2h 25m
2026-07-24 TVS2563 HRG → PRG Jul 24, 22:25 UTCJul 25, 07:45 UTC9h 20m
2026-07-24 TVS3217 - Jul 24, 16:55 UTCJul 24, 20:10 UTC3h 15m
2026-07-24 TVS3216 - Jul 24, 15:05 UTCJul 24, 15:15 UTC10m
2026-07-24 TVS3216 - Jul 24, 10:55 UTCJul 24, 14:30 UTC3h 35m
2026-07-24 TVS2893 BOJ → PRG Jul 24, 06:50 UTCJul 24, 08:40 UTC1h 50m
2026-07-24 TVP7056 KTW → VAR Jul 24, 03:35 UTCJul 24, 05:05 UTC1h 30m
2026-07-23 TVP7273 BJV → KTW Jul 23, 20:50 UTCJul 23, 23:05 UTC2h 15m
2026-07-23 TVP7298 RZE → BJV Jul 23, 17:25 UTCJul 23, 19:35 UTC2h 10m
2026-07-23 TVP7299 BJV → RZE Jul 23, 14:05 UTCJul 23, 16:10 UTC2h 5m
2026-07-23 TVP7266 - Jul 23, 10:45 UTCJul 23, 13:05 UTC2h 20m
2026-07-23 TVP7267 BJV → WAW Jul 23, 06:00 UTCJul 23, 08:30 UTC2h 30m
2026-07-23 TVP7272 KTW → BJV Jul 23, 02:35 UTCJul 23, 04:40 UTC2h 5m
2026-07-22 TVP7493 CHQ → KTW Jul 22, 23:10 UTCJul 23, 01:30 UTC2h 20m
2026-07-22 TVP7466 WAW → CHQ Jul 22, 19:30 UTCJul 22, 21:50 UTC2h 20m
2026-07-22 TVP7467 CHQ → WAW Jul 22, 14:35 UTCJul 22, 17:10 UTC2h 35m
2026-07-22 TVP7492 KTW → CHQ Jul 22, 11:10 UTCJul 22, 13:05 UTC1h 55m
2026-07-22 TVP7486 KTW → SKG Jul 22, 03:35 UTCJul 22, 05:15 UTC1h 40m
2026-07-21 TVP7731 TGD → KTW Jul 21, 18:40 UTCJul 21, 19:55 UTC1h 15m
2026-07-21 TVP7730 KTW → TGD Jul 21, 15:30 UTCJul 21, 16:45 UTC1h 15m
2026-07-21 TVP7049 CND → KTW Jul 21, 12:30 UTCJul 21, 13:55 UTC1h 25m
2026-07-21 TVP7048 KTW → CND Jul 21, 09:55 UTCJul 21, 11:10 UTC1h 15m
2026-07-21 TVP7787 - Jul 21, 07:00 UTCJul 21, 08:20 UTC1h 20m
2026-07-21 TVP7786 - Jul 21, 04:10 UTCJul 21, 05:35 UTC1h 25m
2026-07-21 TVP7775 DLM → KTW Jul 21, 00:30 UTCJul 21, 02:45 UTC2h 15m
2026-07-20 TVP7058 WAW → DLM Jul 20, 20:50 UTCJul 20, 23:15 UTC2h 25m
2026-07-20 TVP7059 DLM → WAW Jul 20, 15:05 UTCJul 20, 17:30 UTC2h 25m
2026-07-20 TVP7774 KTW → DLM Jul 20, 11:25 UTCJul 20, 13:30 UTC2h 5m
2026-07-20 TVP7533 TBJ → KTW Jul 20, 04:10 UTCJul 20, 10:15 UTC6h 5m
2026-07-19 TVP7273 BJV → KTW Jul 19, 23:15 UTCJul 20, 01:30 UTC2h 15m
2026-07-19 TVP7272 KTW → BJV Jul 19, 20:00 UTCJul 19, 22:15 UTC2h 15m
2026-07-19 TVP7269 AYT → KTW Jul 19, 13:50 UTCJul 19, 16:25 UTC2h 35m
2026-07-19 TVP7406 - Jul 19, 09:50 UTCJul 19, 12:05 UTC2h 15m
2026-07-19 TVP7407 - Jul 19, 06:10 UTCJul 19, 08:25 UTC2h 15m
2026-07-19 TVP7268 KTW → AYT Jul 19, 02:30 UTCJul 19, 04:50 UTC2h 20m
2026-07-18 TVP7233 AYT → KTW Jul 18, 22:00 UTCJul 19, 00:30 UTC2h 30m
2026-07-18 TVP7270 POZ → AYT Jul 18, 18:10 UTCJul 18, 20:45 UTC2h 35m
2026-07-18 TVP7271 AYT → POZ Jul 18, 14:00 UTCJul 18, 16:50 UTC2h 50m
2026-07-18 TVP7278 WRO → AYT Jul 18, 10:15 UTCJul 18, 12:50 UTC2h 35m
2026-07-18 TVP7279 AYT → WRO Jul 18, 06:05 UTCJul 18, 08:50 UTC2h 45m
2026-07-18 TVP7232 KTW → AYT Jul 18, 02:25 UTCJul 18, 04:40 UTC2h 16m

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 OK-SWJ page for operator, model, and routing details .

Mode-S 49D41E frequently asked

What is Mode-S code 49D41E?
49D41E is an ICAO 24-bit transponder address. Allocated to Czech Republic. Assigned to OK-SWJ.
Where is Mode-S 49D41E registered?
Mode-S code 49D41E is allocated to Czech Republic (CZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 49D41E broadcasting right now?
Yes. Mode-S 49D41E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 49D41E, octal 22352036, decimal 4,838,430.
What flights does 49D41E operate?
Mode-S 49D41E has broadcast 20 distinct callsigns, including TVS3422, TVS3423, TVS3418, TVS3425, TVS3419.