Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

710121

ICAO 24-bit transponder address · allocated to Saudi Arabia

Currently assigned to HZ-AK43 · BOEING 777-300ER

Hex
710121
Octal
34200441
Decimal
7,405,857
Country
SA
Tail
HZ-AK43
Type
B77W
No current signal · last broadcast 3d ago
Flights observed
96
Distinct callsigns
17
Country
SA
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 710121.

Country allocation

The ICAO 24-bit address 710121 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 17 distinct

Callsign Airline Flights Last seen
SVA143 Saudi Arabian Airlines 19 2026-05-19
SVA023 Saudi Arabian Airlines 14 2026-05-14
SVA020 Saudi Arabian Airlines 10 2026-04-15
SVA022 Saudi Arabian Airlines 9 2026-05-14
SVA037 Saudi Arabian Airlines 8 2026-05-08
SVA144 Saudi Arabian Airlines 6 2026-05-19
SVA038 Saudi Arabian Airlines 6 2026-05-09
SVA021 Saudi Arabian Airlines 6 2026-04-14
SVA121 Saudi Arabian Airlines 4 2026-05-17
SVA111 Saudi Arabian Airlines 4 2026-04-19
SVA035 Saudi Arabian Airlines 3 2026-05-24
SVA122 Saudi Arabian Airlines 2 2026-05-17
SVA127 Saudi Arabian Airlines 1 2026-05-26
SVA126 Saudi Arabian Airlines 1 2026-05-26
SVA118 Saudi Arabian Airlines 1 2026-05-22
SVA117 Saudi Arabian Airlines 1 2026-05-22
SVA036 Saudi Arabian Airlines 1 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-26 SVA126 CDG → JED May 26, 14:20 UTCMay 26, 17:20 UTC3h 0m
2026-05-26 SVA127 JED → CDG May 26, 08:19 UTCMay 26, 11:30 UTC3h 10m
2026-05-24 SVA036 IAD → JED May 24, 23:10 UTCMay 25, 08:40 UTC9h 30m
2026-05-24 SVA035 JED → IAD May 24, 08:00 UTCMay 24, 19:30 UTC11h 30m
2026-05-23 SVA035 JED → IAD May 23, 16:20 UTCMay 24, 12:55 UTC20h 35m
2026-05-23 SVA035 JED → IAD May 23, 14:20 UTCMay 24, 12:55 UTC22h 35m
2026-05-22 SVA118 LHR → RUH May 22, 21:30 UTCMay 23, 11:40 UTC14h 9m
2026-05-22 SVA117 RUH → LHR May 22, 15:35 UTCMay 22, 19:35 UTC4h 0m
2026-05-19 SVA144 CDG → RUH May 19, 09:55 UTCMay 19, 13:50 UTC3h 55m
2026-05-19 SVA143 RUH → CDG May 19, 01:45 UTCMay 19, 05:30 UTC3h 45m
2026-05-17 SVA122 LHR → RUH May 17, 15:45 UTCMay 17, 19:50 UTC4h 5m
2026-05-17 SVA121 RUH → LHR May 17, 08:50 UTCMay 17, 13:15 UTC4h 25m
2026-05-16 SVA121 RUH → LHR May 16, 12:21 UTCMay 17, 12:15 UTC23h 55m
2026-05-16 SVA144 CDG → RUH May 16, 10:20 UTCMay 17, 10:15 UTC23h 55m
2026-05-16 SVA144 CDG → RUH May 16, 10:05 UTCMay 16, 13:41 UTC3h 35m
2026-05-16 SVA143 RUH → CDG May 16, 00:55 UTCMay 16, 05:51 UTC4h 56m
2026-05-14 SVA022 JFK → RUH May 14, 16:35 UTCMay 15, 01:40 UTC9h 5m
2026-05-14 SVA023 RUH → JFK May 14, 12:15 UTCMay 14, 14:01 UTC1h 45m
2026-05-14 SVA023 RUH → JFK May 14, 03:05 UTCMay 14, 07:35 UTC4h 30m
2026-05-12 SVA144 CDG → RUH May 12, 09:45 UTCMay 12, 13:30 UTC3h 45m
2026-05-11 SVA143 RUH → CDG May 11, 10:20 UTCMay 12, 06:05 UTC19h 45m
2026-05-11 SVA143 RUH → CDG May 11, 10:10 UTCMay 12, 06:05 UTC19h 56m
2026-05-10 SVA143 RUH → CDG May 10, 10:19 UTCMay 11, 05:20 UTC19h 0m
2026-05-10 SVA143 RUH → CDG May 10, 09:45 UTCMay 11, 05:20 UTC19h 35m
2026-05-10 SVA143 RUH → CDG May 10, 01:00 UTCMay 10, 05:34 UTC4h 35m
2026-05-09 SVA143 RUH → CDG May 9, 08:20 UTCMay 10, 05:34 UTC21h 15m
2026-05-09 SVA143 RUH → CDG May 9, 06:20 UTCMay 10, 05:34 UTC23h 15m
2026-05-09 SVA038 IAD → RUH May 9, 05:00 UTCMay 10, 04:15 UTC23h 15m
2026-05-08 SVA038 IAD → RUH May 8, 23:05 UTCMay 9, 08:35 UTC9h 30m
2026-05-08 SVA037 RUH → IAD May 8, 07:29 UTCMay 8, 19:05 UTC11h 35m
2026-05-07 SVA037 RUH → IAD May 7, 12:20 UTCMay 8, 12:14 UTC23h 55m
2026-05-07 SVA037 RUH → IAD May 7, 10:20 UTCMay 8, 10:14 UTC23h 54m
2026-05-07 SVA144 CDG → RUH May 7, 10:00 UTCMay 8, 08:05 UTC22h 5m
2026-05-06 SVA143 RUH → CDG May 6, 10:20 UTCMay 7, 05:30 UTC19h 9m
2026-05-06 SVA143 RUH → CDG May 6, 10:01 UTCMay 7, 05:30 UTC19h 29m
2026-05-06 SVA143 RUH → CDG May 6, 00:50 UTCMay 6, 05:30 UTC4h 40m
2026-05-05 SVA143 RUH → CDG May 5, 08:30 UTCMay 6, 05:30 UTC21h 0m
2026-05-05 SVA143 RUH → CDG May 5, 06:20 UTCMay 6, 05:30 UTC23h 10m
2026-05-05 SVA038 IAD → RUH May 5, 04:25 UTCMay 6, 04:15 UTC23h 50m
2026-05-04 SVA038 IAD → RUH May 4, 23:10 UTCMay 5, 08:30 UTC9h 20m
2026-05-04 SVA037 RUH → IAD May 4, 08:20 UTCMay 4, 18:40 UTC10h 21m
2026-05-03 SVA037 RUH → IAD May 3, 18:20 UTCMay 4, 18:15 UTC23h 55m
2026-05-03 SVA037 RUH → IAD May 3, 16:20 UTCMay 4, 12:35 UTC20h 15m
2026-05-03 SVA037 RUH → IAD May 3, 15:35 UTCMay 4, 12:35 UTC21h 0m
2026-05-02 SVA022 JFK → RUH May 2, 21:30 UTCMay 3, 12:50 UTC15h 19m
2026-05-02 SVA022 JFK → RUH May 2, 16:20 UTCMay 3, 12:50 UTC20h 29m
2026-05-02 SVA023 RUH → JFK May 2, 02:50 UTCMay 2, 13:20 UTC10h 30m
2026-04-30 SVA022 JFK → RUH Apr 30, 16:20 UTCMay 1, 02:20 UTC10h 0m
2026-04-30 SVA023 RUH → JFK Apr 30, 03:00 UTCApr 30, 13:55 UTC10h 55m
2026-04-27 SVA144 CDG → RUH Apr 27, 09:55 UTCApr 27, 12:55 UTC3h 0m

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-AK43 page for operator, model, and routing details .

Mode-S 710121 frequently asked

What is Mode-S code 710121?
710121 is an ICAO 24-bit transponder address. Allocated to Saudi Arabia. Assigned to HZ-AK43.
Where is Mode-S 710121 registered?
Mode-S code 710121 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 710121 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 710121, octal 34200441, decimal 7,405,857.
What flights does 710121 operate?
Mode-S 710121 has broadcast 17 distinct callsigns, including SVA143, SVA023, SVA020, SVA022, SVA037.