sensors Mode-S transponder

742838

ICAO 24-bit transponder address · allocated to Jordan

Currently assigned to JY-JAX · BOEING 737-300

Hex
742838
Octal
35024070
Decimal
7,612,472
Country
JO
Tail
JY-JAX
Type
B733
No current signal · last broadcast 15h ago
Flights observed
1
Distinct callsigns
1
Country
JO
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 742838.

Country allocation

The ICAO 24-bit address 742838 falls within the block assigned to Jordan (JO) by ICAO Annex 10, Volume III. Every aircraft registered in Jordan 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
JAV271 Jordan Aviation 1 2026-04-14

Recent flights last 1

DateFlightRouteTakeoffLandingDuration
2026-04-14 JAV271 AMM → IST Apr 14, 10:35 UTCApr 14, 11:05 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 JY-JAX page for operator, model, and routing details .

Mode-S 742838 frequently asked

What is Mode-S code 742838?
742838 is an ICAO 24-bit transponder address. Allocated to Jordan. Assigned to JY-JAX.
Where is Mode-S 742838 registered?
Mode-S code 742838 is allocated to Jordan (JO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 742838 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 742838, octal 35024070, decimal 7,612,472.
What flights does 742838 operate?
Mode-S 742838 has broadcast 1 distinct callsign, including JAV271.