Apparatus

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sensors Mode-S transponder

711477

ICAO 24-bit transponder address · allocated to Saudi Arabia

Currently assigned to HZ-737A · BOEING 737-800

Hex
711477
Octal
34212167
Decimal
7,410,807
Country
SA
Tail
HZ-737A
Type
B738
No current signal · last broadcast 4h ago
Flights observed
42
Distinct callsigns
1
Country
SA
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 711477.

Country allocation

The ICAO 24-bit address 711477 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 1 distinct

Callsign Airline Flights Last seen
HZ737A - 41 2026-06-16

Recent flights last 42

DateFlightRouteTakeoffLandingDuration
2026-06-16 HZ737A - Jun 16, 11:49 UTCJun 16, 12:00 UTC10m
2026-06-14 HZ737A - Jun 14, 12:15 UTCJun 14, 12:45 UTC30m
2026-06-14 HZ737A - Jun 14, 10:20 UTCJun 14, 10:55 UTC35m
2026-06-14 HZ737A - Jun 14, 04:40 UTCJun 14, 04:55 UTC15m
2026-06-06 HZ737A - Jun 6, 15:30 UTCJun 6, 15:44 UTC15m
2026-06-06 HZ737A - Jun 6, 11:30 UTCJun 6, 11:39 UTC10m
2026-06-04 HZ737A - Jun 4, 11:40 UTCJun 4, 12:05 UTC25m
2026-06-04 HZ737A - Jun 4, 09:10 UTCJun 4, 09:35 UTC25m
2026-06-04 HZ737A - Jun 4, 07:45 UTCJun 4, 08:00 UTC15m
2026-06-04 HZ737A - Jun 4, 06:10 UTCJun 4, 06:35 UTC25m
2026-06-04 - - Jun 4, 05:15 UTCJun 4, 05:25 UTC10m
2026-06-03 HZ737A - Jun 3, 14:25 UTCJun 3, 14:40 UTC15m
2026-06-03 HZ737A - Jun 3, 10:30 UTCJun 3, 10:50 UTC20m
2026-06-03 HZ737A - Jun 3, 08:15 UTCJun 3, 08:50 UTC35m
2026-06-03 HZ737A - Jun 3, 03:45 UTCJun 3, 04:05 UTC20m
2026-06-02 HZ737A - Jun 2, 14:55 UTCJun 2, 15:20 UTC25m
2026-06-02 HZ737A - Jun 2, 12:45 UTCJun 2, 13:20 UTC35m
2026-06-02 HZ737A - Jun 2, 03:55 UTCJun 2, 04:40 UTC45m
2026-06-02 HZ737A - Jun 2, 02:40 UTCJun 2, 03:05 UTC25m
2026-05-30 HZ737A - May 30, 11:35 UTCMay 30, 11:45 UTC10m
2026-05-30 HZ737A - May 30, 05:00 UTCMay 30, 05:20 UTC20m
2026-05-25 HZ737A - May 25, 14:20 UTCMay 25, 14:40 UTC20m
2026-05-25 HZ737A - May 25, 12:00 UTCMay 25, 12:40 UTC40m
2026-05-21 HZ737A - May 21, 05:00 UTCMay 21, 05:25 UTC25m
2026-05-19 HZ737A - May 19, 15:05 UTCMay 19, 15:20 UTC15m
2026-05-19 HZ737A - May 19, 14:20 UTCMay 19, 14:30 UTC10m
2026-05-19 HZ737A - May 19, 11:15 UTCMay 19, 11:30 UTC15m
2026-05-14 HZ737A - May 14, 02:50 UTCMay 14, 03:00 UTC10m
2026-05-13 HZ737A - May 13, 06:10 UTCMay 13, 06:20 UTC10m
2026-05-05 HZ737A - May 5, 15:01 UTCMay 5, 15:10 UTC10m
2026-05-05 HZ737A - May 5, 11:00 UTCMay 5, 11:15 UTC15m
2026-05-03 HZ737A - May 3, 14:00 UTCMay 3, 14:10 UTC10m
2026-05-03 HZ737A - May 3, 11:15 UTCMay 3, 11:45 UTC30m
2026-05-03 HZ737A - May 3, 09:10 UTCMay 3, 09:45 UTC35m
2026-05-03 HZ737A - May 3, 05:25 UTCMay 3, 05:35 UTC10m
2026-05-03 HZ737A - May 3, 04:10 UTCMay 3, 04:25 UTC15m
2026-05-02 HZ737A - May 2, 12:55 UTCMay 2, 13:30 UTC35m
2026-05-02 HZ737A - May 2, 11:15 UTCMay 2, 11:50 UTC35m
2026-04-29 HZ737A - Apr 29, 08:10 UTCApr 29, 08:20 UTC10m
2026-04-29 HZ737A - Apr 29, 05:05 UTCApr 29, 05:25 UTC20m
2026-04-29 HZ737A - Apr 29, 03:55 UTCApr 29, 04:05 UTC10m
2026-04-29 HZ737A - Apr 29, 02:55 UTCApr 29, 03:10 UTC15m

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-737A page for operator, model, and routing details .

Mode-S 711477 frequently asked

What is Mode-S code 711477?
711477 is an ICAO 24-bit transponder address. Allocated to Saudi Arabia. Assigned to HZ-737A.
Where is Mode-S 711477 registered?
Mode-S code 711477 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 711477 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 711477, octal 34212167, decimal 7,410,807.
What flights does 711477 operate?
Mode-S 711477 has broadcast 1 distinct callsign, including HZ737A.