sensors Mode-S transponder

7100BD

ICAO 24-bit transponder address · allocated to Saudi Arabia

Currently assigned to HZ-AQ19 · AIRBUS A-330-300

Hex
7100BD
Octal
34200275
Decimal
7,405,757
Country
SA
Tail
HZ-AQ19
Type
A333
No current signal · last broadcast 1h ago
Flights observed
5
Distinct callsigns
5
Country
SA
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 7100BD.

Country allocation

The ICAO 24-bit address 7100BD falls within the block assigned to Saudi Arabia (SA) by ICAO Annex 10, Volume III. Every aircraft registered in Saudi Arabia 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 5 distinct

Callsign Airline Flights Last seen
SVA796 Saudi Arabian Airlines 1 2026-04-26
SVA596 Saudi Arabian Airlines 1 2026-05-15
SVA589 Saudi Arabian Airlines 1 2026-04-29
SVA588 Saudi Arabian Airlines 1 2026-04-29
SVA301 Saudi Arabian Airlines 1 2026-05-07

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-05-15 SVA596 MED → DXB May 15, 06:55 UTCMay 15, 07:55 UTC1h 0m
2026-05-07 SVA301 JED → CAI May 7, 07:30 UTCMay 7, 07:45 UTC15m
2026-04-29 SVA589 DXB → JED Apr 29, 14:00 UTCApr 29, 15:10 UTC1h 10m
2026-04-29 SVA588 JED → DXB Apr 29, 10:40 UTCApr 29, 11:45 UTC1h 5m
2026-04-26 SVA796 JED → PEW Apr 26, 02:50 UTCApr 26, 03:55 UTC1h 5m

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 HZ-AQ19 page for operator, model, and routing details .

Mode-S 7100BD frequently asked

What is Mode-S code 7100BD?
7100BD is an ICAO 24-bit transponder address. Allocated to Saudi Arabia. Assigned to HZ-AQ19.
Where is Mode-S 7100BD registered?
Mode-S code 7100BD is allocated to Saudi Arabia (SA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7100BD broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7100BD, octal 34200275, decimal 7,405,757.
What flights does 7100BD operate?
Mode-S 7100BD has broadcast 5 distinct callsigns, including SVA796, SVA596, SVA589, SVA588, SVA301.