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sensors Mode-S transponder

49D5B4

ICAO 24-bit transponder address · allocated to Czech Republic

Currently assigned to OK-ELD · EMBRAER EMB-505 Phenom 300

Hex
49D5B4
Octal
22352664
Decimal
4,838,836
Country
CZ
Tail
OK-ELD
Type
E55P
Broadcasting now · callsign OKELD · 45,000 ft
Flights observed
196
Distinct callsigns
1
Country
CZ
Last broadcast
1h ago

Current position

49D5B4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 49D5B4 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 1 distinct

Callsign Airline Flights Last seen
OKELD - 196 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 OKELD - Jul 14, 08:35 UTCJul 14, 09:00 UTC25m
2026-07-13 OKELD - Jul 13, 14:45 UTCJul 13, 16:25 UTC1h 40m
2026-07-13 OKELD - Jul 13, 08:45 UTCJul 13, 12:25 UTC3h 40m
2026-07-12 OKELD - Jul 12, 15:30 UTCJul 13, 12:25 UTC20h 55m
2026-07-12 OKELD - Jul 12, 13:50 UTCJul 13, 12:25 UTC22h 35m
2026-07-12 OKELD - Jul 12, 11:35 UTCJul 12, 12:40 UTC1h 5m
2026-07-12 OKELD ARN → IBZ Jul 12, 05:40 UTCJul 12, 09:15 UTC3h 35m
2026-07-11 OKELD - Jul 11, 14:45 UTCJul 11, 14:55 UTC10m
2026-07-11 OKELD - Jul 11, 12:10 UTCJul 11, 14:15 UTC2h 5m
2026-07-11 OKELD - Jul 11, 07:20 UTCJul 11, 09:35 UTC2h 15m
2026-07-10 OKELD - Jul 10, 14:50 UTCJul 10, 15:55 UTC1h 5m
2026-07-10 OKELD - Jul 10, 11:15 UTCJul 10, 13:40 UTC2h 25m
2026-07-09 OKELD WRO → BTS Jul 9, 13:45 UTCJul 9, 14:20 UTC35m
2026-07-09 OKELD - Jul 9, 09:10 UTCJul 9, 12:35 UTC3h 25m
2026-07-08 OKELD - Jul 8, 13:10 UTCJul 8, 14:05 UTC55m
2026-07-08 OKELD OMR → IBZ Jul 8, 09:05 UTCJul 8, 11:45 UTC2h 40m
2026-07-07 OKELD ZRH → OMR Jul 7, 14:00 UTCJul 7, 15:20 UTC1h 20m
2026-07-07 OKELD JMK → ZRH Jul 7, 09:25 UTCJul 7, 12:25 UTC3h 0m
2026-07-07 OKELD SKG → JMK Jul 7, 07:55 UTCJul 7, 08:30 UTC35m
2026-07-06 OKELD PAS → SKG Jul 6, 16:40 UTCJul 6, 17:25 UTC45m
2026-07-06 OKELD MXP → PAS Jul 6, 13:40 UTCJul 6, 16:00 UTC2h 20m
2026-07-06 OKELD - Jul 6, 09:50 UTCJul 6, 12:05 UTC2h 15m
2026-07-05 OKELD - Jul 5, 14:00 UTCJul 5, 16:35 UTC2h 35m
2026-07-05 OKELD - Jul 5, 11:05 UTCJul 5, 11:55 UTC50m
2026-07-04 OKELD - Jul 4, 07:20 UTCJul 4, 07:55 UTC35m
2026-07-03 OKELD - Jul 3, 07:15 UTCJul 3, 08:05 UTC50m
2026-07-02 OKELD - Jul 2, 11:45 UTCJul 2, 14:40 UTC2h 55m
2026-07-02 OKELD - Jul 2, 08:30 UTCJul 2, 09:40 UTC1h 10m
2026-07-01 OKELD - Jul 1, 14:20 UTCJul 1, 18:05 UTC3h 45m
2026-07-01 OKELD - Jul 1, 09:00 UTCJul 1, 10:45 UTC1h 45m
2026-06-30 OKELD - Jun 30, 09:30 UTCJun 30, 13:10 UTC3h 40m
2026-06-29 OKELD GRS → LCA Jun 29, 12:20 UTCJun 29, 15:14 UTC2h 55m
2026-06-28 OKELD - Jun 28, 17:04 UTCJun 29, 11:10 UTC18h 5m
2026-06-28 OKELD - Jun 28, 15:34 UTCJun 29, 11:10 UTC19h 35m
2026-06-28 OKELD - Jun 28, 11:39 UTCJun 28, 14:25 UTC2h 45m
2026-06-28 OKELD PRG → WAW Jun 28, 09:10 UTCJun 28, 10:04 UTC55m
2026-06-27 OKELD - Jun 27, 15:45 UTCJun 27, 17:34 UTC1h 50m
2026-06-27 OKELD - Jun 27, 11:39 UTCJun 27, 15:00 UTC3h 20m
2026-06-26 OKELD - Jun 26, 13:24 UTCJun 26, 13:59 UTC35m
2026-06-26 OKELD - Jun 26, 10:25 UTCJun 26, 12:34 UTC2h 10m
2026-06-26 OKELD - Jun 26, 07:30 UTCJun 26, 09:05 UTC1h 35m
2026-06-25 OKELD ATH → LTN Jun 25, 02:59 UTCJun 25, 06:44 UTC3h 45m
2026-06-25 OKELD - Jun 25, 00:59 UTCJun 25, 01:54 UTC55m
2026-06-23 OKELD - Jun 23, 09:45 UTCJun 23, 13:24 UTC3h 40m
2026-06-22 OKELD CAT → LTN Jun 22, 14:29 UTCJun 22, 16:54 UTC2h 25m
2026-06-22 OKELD - Jun 22, 09:40 UTCJun 22, 11:30 UTC1h 50m
2026-06-21 OKELD - Jun 21, 11:20 UTCJun 21, 12:55 UTC1h 35m
2026-06-21 OKELD IBZ → CAT Jun 21, 08:10 UTCJun 21, 09:44 UTC1h 35m
2026-06-20 OKELD BUD → IBZ Jun 20, 13:24 UTCJun 20, 16:00 UTC2h 35m
2026-06-20 OKELD - Jun 20, 11:14 UTCJun 20, 11:44 UTC30m

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

Mode-S 49D5B4 frequently asked

What is Mode-S code 49D5B4?
49D5B4 is an ICAO 24-bit transponder address. Allocated to Czech Republic. Assigned to OK-ELD.
Where is Mode-S 49D5B4 registered?
Mode-S code 49D5B4 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 49D5B4 broadcasting right now?
Yes. Mode-S 49D5B4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 49D5B4, octal 22352664, decimal 4,838,836.
What flights does 49D5B4 operate?
Mode-S 49D5B4 has broadcast 1 distinct callsign, including OKELD.