Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

49D276

ICAO 24-bit transponder address · allocated to Czech Republic

Currently assigned to OK-TVU · BOEING 737-800

Hex
49D276
Octal
22351166
Decimal
4,838,006
Country
CZ
Tail
OK-TVU
Type
B738
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
541
Distinct callsigns
20
Country
CZ
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S 49D276.

Country allocation

The ICAO 24-bit address 49D276 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
SEJ194 Spicejet 42 2026-05-23
SEJ193 Spicejet 41 2026-05-23
SEJ767 Spicejet 30 2026-05-23
SEJ768 Spicejet 26 2026-05-23
SEJ506 Spicejet 14 2026-05-26
SEJ505 Spicejet 13 2026-05-26
SEJ690 Spicejet 10 2026-05-26
SEJ168 Spicejet 10 2026-05-25
SEJ691 Spicejet 9 2026-05-26
SEJ163 Spicejet 9 2026-05-25
SEJ692 Spicejet 7 2026-04-19
TVS9BH Smart Wings 4 2026-07-26
TVS9B2 Smart Wings 4 2026-07-26
SEJ693 Spicejet 4 2026-04-19
SEJ462 Spicejet 4 2026-04-24
SEJ461 Spicejet 4 2026-04-23
TVS67M - 3 2026-07-22
TVS67L Smart Wings 3 2026-07-22
TVQ6367 Smart Wings 3 2026-07-25
TVQ6366 Smart Wings 3 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TVQ6245 MAH → BTS Jul 26, 19:50 UTCJul 26, 21:30 UTC1h 40m
2026-07-26 TVQ6244 BTS → MAH Jul 26, 16:20 UTCJul 26, 18:35 UTC2h 15m
2026-07-26 TVS9B2 BOJ → BTS Jul 26, 12:40 UTCJul 26, 14:15 UTC1h 35m
2026-07-26 TVS9BH BTS → BOJ Jul 26, 09:25 UTCJul 26, 10:45 UTC1h 20m
2026-07-26 TVQ6135 ADB → BTS Jul 26, 05:25 UTCJul 26, 07:25 UTC2h 1m
2026-07-26 TVQ6134 BTS → ADB Jul 26, 02:35 UTCJul 26, 04:15 UTC1h 40m
2026-07-25 TVQ6147 AYT → BTS Jul 25, 20:20 UTCJul 25, 22:50 UTC2h 30m
2026-07-25 TVQ6146 BTS → AYT Jul 25, 16:30 UTCJul 25, 19:00 UTC2h 30m
2026-07-25 TVQ6367 GPA → BTS Jul 25, 12:05 UTCJul 25, 13:40 UTC1h 35m
2026-07-25 TVQ6366 BTS → GPA Jul 25, 08:40 UTCJul 25, 10:00 UTC1h 20m
2026-07-24 TVQ6485 MIR → BTS Jul 24, 19:00 UTCJul 24, 21:10 UTC2h 10m
2026-07-24 TVS2810 PRG → MIR Jul 24, 15:30 UTCJul 24, 17:40 UTC2h 10m
2026-07-24 TVS2811 MIR → PRG Jul 24, 11:50 UTCJul 24, 14:15 UTC2h 25m
2026-07-24 TVQ6484 BTS → MIR Jul 24, 08:40 UTCJul 24, 10:35 UTC1h 55m
2026-07-24 TVQ6717 OLB → BTS Jul 24, 05:05 UTCJul 24, 06:40 UTC1h 35m
2026-07-24 TVQ6716 BTS → OLB Jul 24, 02:25 UTCJul 24, 03:40 UTC1h 15m
2026-07-23 TVQ6197 BJV → BTS Jul 23, 21:55 UTCJul 23, 23:55 UTC2h 0m
2026-07-23 TVQ6196 BTS → BJV Jul 23, 18:55 UTCJul 23, 20:50 UTC1h 55m
2026-07-23 TVQ6255 IBZ → BTS Jul 23, 15:30 UTCJul 23, 17:45 UTC2h 15m
2026-07-23 TVQ6254 BTS → IBZ Jul 23, 11:30 UTCJul 23, 14:15 UTC2h 45m
2026-07-23 TVQ6137 - Jul 23, 07:55 UTCJul 23, 09:50 UTC1h 55m
2026-07-23 TVQ6148 - Jul 23, 05:05 UTCJul 23, 06:40 UTC1h 35m
2026-07-23 TVQ6149 ADB → KSC Jul 23, 01:50 UTCJul 23, 03:40 UTC1h 50m
2026-07-22 TVQ6136 - Jul 22, 22:35 UTCJul 23, 00:10 UTC1h 35m
2026-07-22 TVQ6467 - Jul 22, 19:10 UTCJul 22, 21:05 UTC1h 55m
2026-07-22 TVQ6466 BTS → MIR Jul 22, 15:50 UTCJul 22, 17:40 UTC1h 50m
2026-07-22 TVS67M - Jul 22, 12:30 UTCJul 22, 14:35 UTC2h 5m
2026-07-22 TVS67L BTS → HER Jul 22, 02:30 UTCJul 22, 04:20 UTC1h 50m
2026-07-21 TVQ6161 AYT → BTS Jul 21, 20:00 UTCJul 21, 22:30 UTC2h 30m
2026-07-21 TVQ6162 KSC → AYT Jul 21, 16:50 UTCJul 21, 18:50 UTC2h 0m
2026-07-21 TVQ6163 AYT → KSC Jul 21, 13:00 UTCJul 21, 15:20 UTC2h 20m
2026-07-21 TVQ6160 BTS → AYT Jul 21, 09:30 UTCJul 21, 11:50 UTC2h 20m
2026-07-21 TVQ6317 PVK → BTS Jul 21, 05:50 UTCJul 21, 07:25 UTC1h 35m
2026-07-21 TVQ6316 BTS → PVK Jul 21, 03:10 UTCJul 21, 04:20 UTC1h 10m
2026-07-20 TVS78S LCA → BTS Jul 20, 20:55 UTCJul 20, 23:40 UTC2h 45m
2026-07-20 TVS1RS - Jul 20, 17:05 UTCJul 20, 19:30 UTC2h 25m
2026-07-20 TVS2RS LCA → KSC Jul 20, 13:10 UTCJul 20, 15:55 UTC2h 45m
2026-07-20 TVS78N BTS → LCA Jul 20, 09:10 UTCJul 20, 11:45 UTC2h 35m
2026-07-20 TVQ6019 MUH → BTS Jul 20, 04:25 UTCJul 20, 07:05 UTC2h 40m
2026-07-20 TVQ6018 BTS → MUH Jul 20, 00:10 UTCJul 20, 02:15 UTC2h 5m
2026-07-19 TVQ6245 MAH → BTS Jul 19, 18:15 UTCJul 19, 20:10 UTC1h 55m
2026-07-19 TVQ6244 BTS → MAH Jul 19, 14:55 UTCJul 19, 17:15 UTC2h 20m
2026-07-19 TVS9B2 - Jul 19, 12:05 UTCJul 19, 13:40 UTC1h 35m
2026-07-19 TVS9BH - Jul 19, 09:25 UTCJul 19, 10:45 UTC1h 20m
2026-07-18 TVQ6080 BTS → RMF Jul 18, 23:05 UTCJul 19, 07:50 UTC8h 45m
2026-07-18 TVQ6147 AYT → BTS Jul 18, 19:10 UTCJul 18, 21:35 UTC2h 25m
2026-07-18 TVQ6146 BTS → AYT Jul 18, 15:30 UTCJul 18, 17:50 UTC2h 20m
2026-07-18 TVQ6367 GPA → BTS Jul 18, 11:50 UTCJul 18, 13:20 UTC1h 30m
2026-07-18 TVQ6366 BTS → GPA Jul 18, 08:45 UTCJul 18, 10:15 UTC1h 30m
2026-07-17 TVQ6485 MIR → BTS Jul 17, 19:35 UTCJul 17, 21:20 UTC1h 45m

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

Mode-S 49D276 frequently asked

What is Mode-S code 49D276?
49D276 is an ICAO 24-bit transponder address. Allocated to Czech Republic. Assigned to OK-TVU.
Where is Mode-S 49D276 registered?
Mode-S code 49D276 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 49D276 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 49D276, octal 22351166, decimal 4,838,006.
What flights does 49D276 operate?
Mode-S 49D276 has broadcast 20 distinct callsigns, including SEJ194, SEJ193, SEJ767, SEJ768, SEJ506.