Apparatus

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sensors Mode-S transponder

73828B

ICAO 24-bit transponder address · allocated to Israel

Currently assigned to 4X-ABY · AIRBUS A-320

Hex
73828B
Octal
34701213
Decimal
7,570,059
Country
IL
Tail
4X-ABY
Type
A320
No current signal · last broadcast 8d ago
Flights observed
148
Distinct callsigns
20
Country
IL
Last broadcast
8d ago

Last known position

Most recent position reported by Mode-S 73828B.

Country allocation

The ICAO 24-bit address 73828B falls within the block assigned to Israel (IL) by ICAO Annex 10, Volume III. Every aircraft registered in Israel 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
ISR582 Israir Airlines 6 2026-05-11
ISR053 Israir Airlines 6 2026-05-20
ISR889 Israir Airlines 5 2026-04-26
ISR725 Israir Airlines 5 2026-05-14
ISR583 Israir Airlines 5 2026-05-15
ISR563 Israir Airlines 5 2026-05-20
ISR726 Israir Airlines 4 2026-05-14
ISR584 Israir Airlines 4 2026-05-15
ISR581 Israir Airlines 4 2026-05-11
ISR564 Israir Airlines 4 2026-05-20
ISR339 Israir Airlines 4 2026-04-18
ISR054 Israir Airlines 4 2026-05-18
ISR890 Israir Airlines 3 2026-04-26
ISR056 Israir Airlines 3 2026-05-11
ISR055 Israir Airlines 3 2026-05-18
ISR045 Israir Airlines 3 2026-04-16
ISR043 Israir Airlines 3 2026-05-16
ISR990 - 2 2026-04-13
ISR958 - 2 2026-04-17
ISR724 Israir Airlines 2 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-21 ISR999 ETM → TLV May 21, 19:00 UTCMay 21, 19:40 UTC40m
2026-05-21 ISR592 PFO → TLV May 21, 14:35 UTCMay 21, 15:20 UTC45m
2026-05-21 ISR591 TLV → PFO May 21, 11:50 UTCMay 21, 12:30 UTC40m
2026-05-21 ISR588 LCA → TLV May 21, 09:50 UTCMay 21, 10:30 UTC40m
2026-05-21 ISR587 TLV → LCA May 21, 07:15 UTCMay 21, 07:55 UTC40m
2026-05-20 ISR568 ATH → TLV May 20, 19:45 UTCMay 20, 21:10 UTC1h 25m
2026-05-20 ISR567 TLV → ATH May 20, 16:20 UTCMay 20, 18:10 UTC1h 50m
2026-05-20 ISR564 ATH → TLV May 20, 12:50 UTCMay 20, 14:30 UTC1h 40m
2026-05-20 ISR563 TLV → ATH May 20, 08:00 UTCMay 20, 09:55 UTC1h 55m
2026-05-20 ISR563 TLV → ATH May 20, 05:25 UTCMay 20, 05:50 UTC25m
2026-05-20 ISR053 TLV → ETM May 20, 04:00 UTCMay 20, 04:25 UTC25m
2026-05-19 ISR879 TLV → GYD May 19, 09:25 UTCMay 19, 16:30 UTC7h 5m
2026-05-18 ISR055 TLV → ETM May 18, 19:35 UTCMay 18, 20:00 UTC25m
2026-05-18 ISR598 PFO → TLV May 18, 17:55 UTCMay 18, 18:30 UTC34m
2026-05-18 ISR598 PFO → TLV May 18, 17:40 UTCMay 18, 17:50 UTC10m
2026-05-18 ISR597 TLV → PFO May 18, 15:55 UTCMay 18, 16:40 UTC45m
2026-05-18 ISR054 ETM → TLV May 18, 13:40 UTCMay 18, 14:15 UTC35m
2026-05-18 ISR053 TLV → ETM May 18, 12:15 UTCMay 18, 12:40 UTC25m
2026-05-18 ISR576 SKG → TLV May 18, 08:50 UTCMay 18, 10:45 UTC1h 55m
2026-05-18 ISR575 TLV → SKG May 18, 05:10 UTCMay 18, 07:30 UTC2h 20m
2026-05-17 ISR712 VAR → TLV May 17, 21:01 UTCMay 17, 22:45 UTC1h 45m
2026-05-17 ISR711 TLV → VAR May 17, 17:40 UTCMay 17, 19:50 UTC2h 10m
2026-05-17 ISR512 RHO → TLV May 17, 15:10 UTCMay 17, 16:15 UTC1h 5m
2026-05-17 ISR511 TLV → RHO May 17, 11:25 UTCMay 17, 12:45 UTC1h 20m
2026-05-17 ISR050 ETM → TLV May 17, 08:30 UTCMay 17, 08:55 UTC25m
2026-05-17 ISR049 TLV → ETM May 17, 06:40 UTCMay 17, 07:00 UTC20m
2026-05-16 ISR044 ETM → TLV May 16, 17:15 UTCMay 16, 17:50 UTC35m
2026-05-16 ISR043 TLV → ETM May 16, 15:05 UTCMay 16, 15:31 UTC25m
2026-05-16 ISR544 ATH → ETM May 16, 07:25 UTCMay 16, 09:01 UTC1h 35m
2026-05-16 ISR543 ETM → ATH May 16, 03:20 UTCMay 16, 05:40 UTC2h 20m
2026-05-15 ISR048 ETM → TLV May 15, 14:05 UTCMay 15, 14:35 UTC30m
2026-05-15 ISR047 TLV → ETM May 15, 12:45 UTCMay 15, 13:05 UTC20m
2026-05-15 ISR047 TLV → ETM May 15, 11:55 UTCMay 15, 12:00 UTC5m
2026-05-15 ISR584 LCA → TLV May 15, 10:25 UTCMay 15, 11:10 UTC45m
2026-05-15 ISR583 TLV → LCA May 15, 07:55 UTCMay 15, 08:40 UTC45m
2026-05-14 ISR726 BUD → TLV May 14, 17:50 UTCMay 14, 21:00 UTC3h 10m
2026-05-14 ISR725 TLV → BUD May 14, 13:30 UTCMay 14, 16:40 UTC3h 10m
2026-05-14 ISR878 GYD → TLV May 14, 04:45 UTCMay 14, 11:55 UTC7h 10m
2026-05-13 ISR596 PFO → TLV May 13, 15:00 UTCMay 13, 15:40 UTC40m
2026-05-13 ISR595 TLV → PFO May 13, 13:10 UTCMay 13, 13:55 UTC45m
2026-05-13 ISR884 BUS → TLV May 13, 09:25 UTCMay 13, 11:30 UTC2h 5m
2026-05-13 ISR883 TLV → BUS May 13, 06:10 UTCMay 13, 08:10 UTC2h 0m
2026-05-12 ISR170 TIA → TLV May 12, 16:30 UTCMay 12, 18:25 UTC1h 55m
2026-05-12 ISR169 TLV → TIA May 12, 12:25 UTCMay 12, 14:50 UTC2h 25m
2026-05-12 ISR054 ETM → TLV May 12, 07:10 UTCMay 12, 07:40 UTC30m
2026-05-11 ISR053 TLV → ETM May 11, 19:15 UTCMay 11, 19:35 UTC20m
2026-05-11 ISR562 ATH → TLV May 11, 16:40 UTCMay 11, 18:05 UTC1h 26m
2026-05-11 ISR561 TLV → ATH May 11, 12:55 UTCMay 11, 14:45 UTC1h 50m
2026-05-11 ISR582 LCA → TLV May 11, 10:00 UTCMay 11, 10:45 UTC45m
2026-05-11 ISR581 TLV → LCA May 11, 08:00 UTCMay 11, 08:45 UTC45m

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 4X-ABY page for operator, model, and routing details .

Mode-S 73828B frequently asked

What is Mode-S code 73828B?
73828B is an ICAO 24-bit transponder address. Allocated to Israel. Assigned to 4X-ABY.
Where is Mode-S 73828B registered?
Mode-S code 73828B is allocated to Israel (IL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 73828B broadcasting right now?
No active broadcast right now. Last signal was 8d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 73828B, octal 34701213, decimal 7,570,059.
What flights does 73828B operate?
Mode-S 73828B has broadcast 20 distinct callsigns, including ISR582, ISR053, ISR889, ISR725, ISR583.