Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

498497

ICAO 24-bit transponder address · allocated to Czech Republic

Currently assigned to 0559 · ZLIN Z-42/142/242

Hex
498497
Octal
22302227
Decimal
4,818,071
Country
CZ
Tail
0559
Type
Z42
No current signal · last broadcast 3d ago
Flights observed
121
Distinct callsigns
20
Country
CZ
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 498497.

Country allocation

The ICAO 24-bit address 498497 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
BASIC23 - 7 2026-07-02
BASIC17 - 7 2026-06-17
BASIC13 - 7 2026-07-02
BASIC57 - 6 2026-06-22
BASIC73 - 5 2026-06-30
BASIC63 - 5 2026-06-16
BASIC37 - 5 2026-06-22
BASIC35 - 5 2026-07-13
BASIC27 - 5 2026-06-22
BASIC21 - 5 2026-07-16
BASIC51 - 4 2026-07-02
BASIC31 - 4 2026-06-17
BASIC83 - 3 2026-05-28
BASIC77 - 3 2026-06-18
BASIC61 - 3 2026-07-02
BASIC55 - 3 2026-06-17
BASIC53 - 3 2026-06-30
BASIC47 - 3 2026-06-08
BASIC43 - 3 2026-06-30
BASIC41 - 3 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 BASIC21 - Jul 16, 09:15 UTCJul 16, 10:35 UTC1h 20m
2026-07-16 BASIC11 - Jul 16, 07:20 UTCJul 16, 08:40 UTC1h 20m
2026-07-15 BABY35 - Jul 15, 10:40 UTCJul 15, 11:30 UTC50m
2026-07-15 BABY23 - Jul 15, 08:45 UTCJul 15, 09:55 UTC1h 10m
2026-07-15 BABY15 - Jul 15, 07:20 UTCJul 15, 08:10 UTC50m
2026-07-14 BABY23 - Jul 14, 08:50 UTCJul 14, 09:45 UTC55m
2026-07-14 BABY13 - Jul 14, 07:15 UTCJul 14, 08:05 UTC50m
2026-07-13 BASIC45 PED → PED Jul 13, 15:40 UTCJul 13, 17:05 UTC1h 25m
2026-07-13 BASIC35 - Jul 13, 14:00 UTCJul 13, 14:40 UTC40m
2026-07-13 BASIC05 PED → PED Jul 13, 08:20 UTCJul 13, 09:00 UTC40m
2026-07-02 BASIC61 - Jul 2, 17:20 UTCJul 2, 18:10 UTC50m
2026-07-02 BASIC51 - Jul 2, 15:05 UTCJul 2, 16:30 UTC1h 25m
2026-07-02 BASIC45 - Jul 2, 13:05 UTCJul 2, 14:40 UTC1h 35m
2026-07-02 BASIC23 PED → PED Jul 2, 09:05 UTCJul 2, 10:00 UTC55m
2026-07-02 BASIC13 - Jul 2, 07:15 UTCJul 2, 08:35 UTC1h 20m
2026-07-01 BASIC23 PED → PED Jul 1, 08:55 UTCJul 1, 09:30 UTC35m
2026-07-01 BASIC13 PED → PED Jul 1, 07:05 UTCJul 1, 08:10 UTC1h 5m
2026-06-30 BASIC73 - Jun 30, 17:50 UTCJun 30, 18:45 UTC55m
2026-06-30 BASIC53 - Jun 30, 14:50 UTCJun 30, 17:10 UTC2h 20m
2026-06-30 BASIC43 PED → PED Jun 30, 12:45 UTCJun 30, 14:05 UTC1h 20m
2026-06-30 BASIC21 - Jun 30, 10:00 UTCJun 30, 12:05 UTC2h 5m
2026-06-30 BASIC13 - Jun 30, 07:15 UTCJun 30, 09:20 UTC2h 5m
2026-06-25 BASIC23 PED → PED Jun 25, 09:45 UTCJun 25, 11:04 UTC1h 20m
2026-06-25 BASIC13 PED → PED Jun 25, 07:09 UTCJun 25, 09:14 UTC2h 5m
2026-06-24 BASIC61 - Jun 24, 17:25 UTCJun 24, 18:44 UTC1h 20m
2026-06-24 BASIC51 - Jun 24, 15:35 UTCJun 24, 16:50 UTC1h 15m
2026-06-24 BASIC41 PED → PED Jun 24, 11:09 UTCJun 24, 14:55 UTC3h 45m
2026-06-24 BASIC21 - Jun 24, 08:35 UTCJun 24, 10:35 UTC2h 0m
2026-06-24 BASIC15 - Jun 24, 07:10 UTCJun 24, 07:59 UTC50m
2026-06-23 CEF850 PED → PED Jun 23, 13:24 UTCJun 23, 18:45 UTC5h 20m
2026-06-23 BASIC25 - Jun 23, 08:45 UTCJun 23, 12:29 UTC3h 45m
2026-06-23 BASIC15 PED → PED Jun 23, 07:09 UTCJun 23, 08:09 UTC1h 0m
2026-06-22 BASIC57 - Jun 22, 15:05 UTCJun 22, 17:55 UTC2h 50m
2026-06-22 BASIC37 - Jun 22, 11:50 UTCJun 22, 12:44 UTC55m
2026-06-22 BASIC27 - Jun 22, 10:19 UTCJun 22, 11:19 UTC1h 0m
2026-06-22 BASIC13 - Jun 22, 08:00 UTCJun 22, 09:24 UTC1h 25m
2026-06-18 BASIC77 PED → PED Jun 18, 16:45 UTCJun 18, 18:05 UTC1h 20m
2026-06-18 BASIC51 - Jun 18, 13:10 UTCJun 18, 16:10 UTC3h 0m
2026-06-18 BASIC37 - Jun 18, 11:30 UTCJun 18, 12:25 UTC55m
2026-06-18 BASIC27 PED → PED Jun 18, 09:55 UTCJun 18, 10:50 UTC55m
2026-06-18 BASIC23 - Jun 18, 08:30 UTCJun 18, 09:20 UTC50m
2026-06-18 BASIC15 - Jun 18, 07:05 UTCJun 18, 08:00 UTC55m
2026-06-17 BASIC77 - Jun 17, 16:45 UTCJun 17, 18:05 UTC1h 20m
2026-06-17 BASIC55 - Jun 17, 13:05 UTCJun 17, 15:50 UTC2h 45m
2026-06-17 BASIC31 PED → PED Jun 17, 09:25 UTCJun 17, 09:45 UTC20m
2026-06-17 BASIC17 - Jun 17, 07:05 UTCJun 17, 08:25 UTC1h 20m
2026-06-16 BASIC63 PED → PED Jun 16, 15:09 UTCJun 16, 15:24 UTC15m
2026-06-16 BASIC57 PED → PED Jun 16, 13:00 UTCJun 16, 14:00 UTC1h 0m
2026-06-16 BASIC35 - Jun 16, 10:20 UTCJun 16, 11:05 UTC45m
2026-06-16 BASIC21 - Jun 16, 07:05 UTCJun 16, 09:45 UTC2h 40m

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 0559 page for operator, model, and routing details .

Mode-S 498497 frequently asked

What is Mode-S code 498497?
498497 is an ICAO 24-bit transponder address. Allocated to Czech Republic. Assigned to 0559.
Where is Mode-S 498497 registered?
Mode-S code 498497 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 498497 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 498497, octal 22302227, decimal 4,818,071.
What flights does 498497 operate?
Mode-S 498497 has broadcast 20 distinct callsigns, including BASIC23, BASIC17, BASIC13, BASIC57, BASIC73.