sensors Mode-S transponder

7100BF

ICAO 24-bit transponder address · allocated to Saudi Arabia

Currently assigned to HZ-AK31 · BOEING 777-300ER

Hex
7100BF
Octal
34200277
Decimal
7,405,759
Country
SA
Tail
HZ-AK31
Type
B77W
No current signal · last broadcast 1h ago
Flights observed
82
Distinct callsigns
20
Country
SA
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 7100BF.

Country allocation

The ICAO 24-bit address 7100BF 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 20 distinct

Callsign Airline Flights Last seen
SVA808 Saudi Arabian Airlines 4 2026-05-28
SVA341 - 4 2026-04-18
SVA9730 - 3 2026-04-28
SVA9313 - 3 2026-05-19
SVA818 Saudi Arabian Airlines 3 2026-04-19
SVA809 Saudi Arabian Airlines 3 2026-05-28
SVA805 Saudi Arabian Airlines 3 2026-05-16
SVA804 Saudi Arabian Airlines 3 2026-05-15
SVA9513 - 2 2026-05-14
SVA9441 - 2 2026-05-06
SVA9429 - 2 2026-05-05
SVA9413 - 2 2026-05-03
SVA9345 - 2 2026-04-24
SVA9321 - 2 2026-04-23
SVA802 Saudi Arabian Airlines 2 2026-05-15
SVA758 Saudi Arabian Airlines 2 2026-05-29
SVA756 - 2 2026-04-13
SVA734 Saudi Arabian Airlines 2 2026-05-24
SVA726 - 2 2026-04-15
SVA5363 - 2 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SVA759 DEL → JED May 29, 14:55 UTCMay 30, 03:45 UTC12h 50m
2026-05-29 SVA758 JED → DEL May 29, 12:35 UTCMay 29, 13:05 UTC30m
2026-05-29 SVA758 JED → DEL May 29, 08:50 UTCMay 29, 12:00 UTC3h 10m
2026-05-28 SVA809 DAC → JED May 28, 09:55 UTCMay 29, 09:10 UTC23h 15m
2026-05-28 SVA809 DAC → JED May 28, 07:30 UTCMay 28, 10:35 UTC3h 5m
2026-05-28 SVA808 RUH → DAC May 28, 02:25 UTCMay 28, 05:15 UTC2h 50m
2026-05-25 SVA704 JED → KHI May 25, 18:00 UTCMay 25, 18:20 UTC20m
2026-05-24 SVA735 LHE → JED May 24, 07:20 UTCMay 24, 07:50 UTC30m
2026-05-24 SVA734 MED → LHE May 24, 02:45 UTCMay 24, 05:25 UTC2h 40m
2026-05-22 SVA3779 COK → RUH May 22, 08:35 UTCMay 22, 09:05 UTC30m
2026-05-22 SVA3776 RUH → COK May 22, 05:05 UTCMay 22, 06:10 UTC1h 5m
2026-05-21 SVA3776 RUH → COK May 21, 08:25 UTCMay 22, 06:10 UTC21h 45m
2026-05-20 SVA5363 - May 20, 07:50 UTCMay 21, 03:15 UTC19h 25m
2026-05-20 SVA5363 - May 20, 07:25 UTCMay 21, 03:15 UTC19h 50m
2026-05-19 SVA9313 - May 19, 09:50 UTCMay 20, 04:35 UTC18h 45m
2026-05-19 SVA9313 - May 19, 07:00 UTCMay 20, 04:35 UTC21h 35m
2026-05-19 SVA9313 - May 19, 04:25 UTCMay 20, 03:45 UTC23h 20m
2026-05-18 SVA5911 - May 18, 19:35 UTCMay 19, 09:55 UTC14h 20m
2026-05-18 SVA9650 - May 18, 13:45 UTCMay 18, 17:25 UTC3h 40m
2026-05-17 SVA5737 - May 17, 18:35 UTCMay 17, 19:05 UTC30m
2026-05-16 SVA805 DAC → JED May 16, 21:05 UTCMay 17, 13:55 UTC16h 50m
2026-05-16 SVA805 DAC → JED May 16, 18:50 UTCMay 17, 13:55 UTC19h 5m
2026-05-15 SVA804 JED → DAC May 15, 23:10 UTCMay 16, 16:45 UTC17h 36m
2026-05-15 SVA804 JED → DAC May 15, 20:50 UTCMay 16, 16:45 UTC19h 56m
2026-05-15 SVA802 JED → DAC May 15, 03:10 UTCMay 15, 18:45 UTC15h 34m
2026-05-14 SVA5439 - May 14, 23:30 UTCMay 14, 23:40 UTC10m
2026-05-14 SVA9513 - May 14, 21:15 UTCMay 14, 21:25 UTC10m
2026-05-14 SVA9513 - May 14, 01:50 UTCMay 14, 20:40 UTC18h 50m
2026-05-13 SVA5199 - May 13, 22:05 UTCMay 13, 22:20 UTC15m
2026-05-12 SVA9504 - May 12, 23:15 UTCMay 13, 17:40 UTC18h 25m
2026-05-12 SVA803 DAC → JED May 12, 20:45 UTCMay 13, 17:40 UTC20h 55m
2026-05-12 SVA802 JED → DAC May 12, 02:50 UTCMay 12, 18:35 UTC15h 45m
2026-05-11 SVA807 DAC → RUH May 11, 05:30 UTCMay 11, 22:35 UTC17h 5m
2026-05-10 SVA806 RUH → DAC May 10, 22:55 UTCMay 11, 03:30 UTC4h 35m
2026-05-07 SVA5433 - May 7, 13:50 UTCMay 7, 14:30 UTC40m
2026-05-06 SVA9441 - May 6, 12:40 UTCMay 7, 07:30 UTC18h 49m
2026-05-06 SVA9441 - May 6, 08:30 UTCMay 7, 07:30 UTC22h 59m
2026-05-05 SVA9437 - May 5, 10:55 UTCMay 6, 05:30 UTC18h 35m
2026-05-05 SVA5251 - May 5, 06:45 UTCMay 5, 06:55 UTC10m
2026-05-05 SVA9429 - May 5, 03:45 UTCMay 5, 04:00 UTC15m
2026-05-04 SVA9429 - May 4, 19:50 UTCMay 5, 03:10 UTC7h 20m
2026-05-03 SVA5312 - May 3, 11:30 UTCMay 3, 18:30 UTC7h 0m
2026-05-03 SVA5312 - May 3, 10:40 UTCMay 3, 10:50 UTC10m
2026-05-03 SVA9413 - May 3, 05:35 UTCMay 3, 05:50 UTC15m
2026-05-02 SVA9413 - May 2, 21:50 UTCMay 3, 05:00 UTC7h 9m
2026-05-01 SVA5219 - May 1, 08:40 UTCMay 1, 16:40 UTC8h 0m
2026-04-30 SVA9400 - Apr 30, 21:20 UTCMay 1, 05:25 UTC8h 5m
2026-04-29 SVA5937 - Apr 29, 03:00 UTCApr 29, 06:00 UTC3h 0m
2026-04-28 SVA9730 - Apr 28, 21:15 UTCApr 29, 00:20 UTC3h 5m
2026-04-27 SVA9730 - Apr 27, 23:50 UTCApr 28, 23:45 UTC23h 55m

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-AK31 page for operator, model, and routing details .

Mode-S 7100BF frequently asked

What is Mode-S code 7100BF?
7100BF is an ICAO 24-bit transponder address. Allocated to Saudi Arabia. Assigned to HZ-AK31.
Where is Mode-S 7100BF registered?
Mode-S code 7100BF 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 7100BF 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 7100BF, octal 34200277, decimal 7,405,759.
What flights does 7100BF operate?
Mode-S 7100BF has broadcast 20 distinct callsigns, including SVA808, SVA341, SVA9730, SVA9313, SVA818.