Apparatus

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sensors Mode-S transponder

4D20EF

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-CAZ · BOEING 777-300ER

Hex
4D20EF
Octal
23220357
Decimal
5,054,703
Country
MT
Tail
9H-CAZ
Type
B77W
No current signal · last broadcast 2h ago
Flights observed
101
Distinct callsigns
20
Country
MT
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4D20EF.

Country allocation

The ICAO 24-bit address 4D20EF falls within the block assigned to Malta (MT) by ICAO Annex 10, Volume III. Every aircraft registered in Malta 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
ICL772 CAL Cargo Air Lines 21 2026-05-18
ICL773 - 15 2026-05-14
ICL702 - 10 2026-07-11
CHG266 - 10 2026-07-10
ICL700 - 5 2026-06-24
CHZ256 - 5 2026-07-07
ICL703 - 4 2026-06-24
CHZ255 - 4 2026-07-07
CHG267 - 4 2026-07-17
ICL986 - 3 2026-06-23
ICL701 - 3 2026-06-27
ICL982 - 2 2026-07-13
ICL981 - 2 2026-07-12
ICL705 - 2 2026-07-15
CHG265 - 2 2026-06-30
ICL992 - 1 2026-07-02
ICL991 CAL Cargo Air Lines 1 2026-06-19
ICL985 - 1 2026-06-21
ICL931 CAL Cargo Air Lines 1 2026-07-02
ICL704 - 1 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CHG267 - Jul 17, 15:20 UTCJul 18, 00:04 UTC8h 45m
2026-07-16 CHZ792 - Jul 16, 18:34 UTCJul 17, 01:09 UTC6h 35m
2026-07-16 CHZ731 - Jul 16, 06:00 UTCJul 16, 13:15 UTC7h 15m
2026-07-15 ICL705 - Jul 15, 03:30 UTCJul 15, 07:45 UTC4h 15m
2026-07-14 CHZ2256 - Jul 14, 15:55 UTCJul 14, 16:30 UTC35m
2026-07-14 CHZ2255 TLV → BOM Jul 14, 00:15 UTCJul 14, 07:50 UTC7h 35m
2026-07-13 ICL982 JFK → TLV Jul 13, 11:10 UTCJul 13, 21:15 UTC10h 5m
2026-07-12 ICL981 TLV → JFK Jul 12, 01:20 UTCJul 12, 12:30 UTC11h 10m
2026-07-11 ICL702 - Jul 11, 12:55 UTCJul 11, 17:15 UTC4h 20m
2026-07-11 ICL702 - Jul 11, 08:45 UTCJul 11, 10:20 UTC1h 35m
2026-07-10 CHG266 - Jul 10, 20:00 UTCJul 11, 02:35 UTC6h 35m
2026-07-10 CHG266 - Jul 10, 15:25 UTCJul 10, 17:40 UTC2h 15m
2026-07-10 CHG267 - Jul 10, 02:20 UTCJul 10, 11:20 UTC9h 0m
2026-07-09 CHG266 - Jul 9, 08:35 UTCJul 9, 15:25 UTC6h 50m
2026-07-09 CHG266 - Jul 9, 04:45 UTCJul 9, 07:05 UTC2h 20m
2026-07-08 CHG267 - Jul 8, 15:15 UTCJul 8, 23:55 UTC8h 40m
2026-07-08 ICL705 - Jul 8, 06:25 UTCJul 8, 10:35 UTC4h 10m
2026-07-07 CHZ256 - Jul 7, 23:55 UTCJul 8, 02:55 UTC3h 0m
2026-07-07 CHZ256 - Jul 7, 19:50 UTCJul 7, 22:05 UTC2h 15m
2026-07-07 CHZ255 - Jul 7, 11:10 UTCJul 7, 13:55 UTC2h 45m
2026-07-07 CHZ255 - Jul 7, 05:10 UTCJul 7, 08:25 UTC3h 15m
2026-07-06 ICL982 JFK → TLV Jul 6, 16:35 UTCJul 7, 02:10 UTC9h 35m
2026-07-06 ICL981 TLV → JFK Jul 6, 00:40 UTCJul 6, 11:55 UTC11h 15m
2026-07-05 ICL702 - Jul 5, 15:20 UTCJul 5, 19:35 UTC4h 15m
2026-07-05 ICL702 - Jul 5, 10:30 UTCJul 5, 12:05 UTC1h 35m
2026-07-05 CHG266 - Jul 5, 01:00 UTCJul 5, 04:05 UTC3h 5m
2026-07-04 CHG266 - Jul 4, 18:50 UTCJul 4, 19:15 UTC25m
2026-07-04 CHG266 - Jul 4, 16:55 UTCJul 4, 17:30 UTC35m
2026-07-04 CHG267 - Jul 4, 02:05 UTCJul 4, 10:50 UTC8h 45m
2026-07-02 ICL992 JFK → LGG Jul 2, 21:45 UTCJul 3, 04:10 UTC6h 25m
2026-07-02 ICL931 LGG → JFK Jul 2, 09:50 UTCJul 2, 17:20 UTC7h 30m
2026-07-01 CHG266 - Jul 1, 11:35 UTCJul 1, 18:05 UTC6h 30m
2026-07-01 CHG266 - Jul 1, 08:40 UTCJul 1, 09:00 UTC20m
2026-07-01 CHG266 - Jul 1, 06:40 UTCJul 1, 07:10 UTC30m
2026-06-30 CHG265 - Jun 30, 21:20 UTCJul 1, 00:10 UTC2h 50m
2026-06-30 CHG265 TLV → DWC Jun 30, 05:00 UTCJun 30, 08:10 UTC3h 10m
2026-06-29 CHZ256 - Jun 29, 23:14 UTCJun 30, 02:20 UTC3h 6m
2026-06-29 CHZ256 - Jun 29, 21:05 UTCJun 29, 21:24 UTC20m
2026-06-29 CHZ256 - Jun 29, 19:15 UTCJun 29, 19:39 UTC25m
2026-06-29 CHZ255 - Jun 29, 08:54 UTCJun 29, 11:39 UTC2h 45m
2026-06-29 CHZ255 - Jun 29, 03:39 UTCJun 29, 06:54 UTC3h 15m
2026-06-28 ICL704 - Jun 28, 19:34 UTCJun 28, 23:29 UTC3h 55m
2026-06-27 ICL701 - Jun 27, 22:09 UTCJun 28, 02:05 UTC3h 55m
2026-06-27 ICL702 - Jun 27, 13:00 UTCJun 27, 17:20 UTC4h 20m
2026-06-27 ICL702 - Jun 27, 09:09 UTCJun 27, 09:44 UTC35m
2026-06-24 ICL703 - Jun 24, 07:40 UTCJun 24, 11:39 UTC4h 0m
2026-06-24 ICL700 LGG → TLV Jun 24, 00:44 UTCJun 24, 04:24 UTC3h 40m
2026-06-23 ICL701 TLV → LGG Jun 23, 18:10 UTCJun 23, 22:10 UTC4h 0m
2026-06-23 ICL986 JFK → TLV Jun 23, 04:00 UTCJun 23, 14:15 UTC10h 15m
2026-06-21 ICL985 TLV → JFK Jun 21, 22:29 UTCJun 22, 09:24 UTC10h 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 9H-CAZ page for operator, model, and routing details .

Mode-S 4D20EF frequently asked

What is Mode-S code 4D20EF?
4D20EF is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-CAZ.
Where is Mode-S 4D20EF registered?
Mode-S code 4D20EF is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D20EF broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D20EF, octal 23220357, decimal 5,054,703.
What flights does 4D20EF operate?
Mode-S 4D20EF has broadcast 20 distinct callsigns, including ICL772, ICL773, ICL702, CHG266, ICL700.