sensors Mode-S transponder

4D23BB

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-MMO · AIRBUS A-320

Hex
4D23BB
Octal
23221673
Decimal
5,055,419
Country
MT
Tail
9H-MMO
Type
A320
No current signal · last broadcast 11h ago
Flights observed
129
Distinct callsigns
20
Country
MT
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 4D23BB.

Country allocation

The ICAO 24-bit address 4D23BB 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
LBT770 Nouvelair 11 2026-05-29
LBT7667 Nouvelair 8 2026-05-21
LBT763 Nouvelair 7 2026-05-28
LBT2608 Nouvelair 7 2026-05-22
LBT736 Nouvelair 6 2026-05-23
LBT555 Nouvelair 6 2026-05-25
LBT2609 Nouvelair 6 2026-05-23
LBT762 Nouvelair 5 2026-05-28
LBT574 Nouvelair 5 2026-05-21
LBT554 Nouvelair 5 2026-05-24
LBT7666 Nouvelair 4 2026-05-21
LBT7631 Nouvelair 4 2026-05-28
LBT7630 Nouvelair 4 2026-05-28
LBT712 Nouvelair 4 2026-05-20
LBT702 Nouvelair 4 2026-05-09
LBT575 Nouvelair 4 2026-04-28
LBT508 Nouvelair 4 2026-04-27
LBT737 Nouvelair 3 2026-05-16
LBT713 Nouvelair 3 2026-05-27
LBT385 Nouvelair 3 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 LBT771 BOD → DJE May 29, 13:50 UTCMay 29, 15:10 UTC1h 20m
2026-05-29 LBT770 DJE → BOD May 29, 11:10 UTCMay 29, 12:45 UTC1h 35m
2026-05-29 LBT7655 KTW → DJE May 29, 06:00 UTCMay 29, 08:20 UTC2h 20m
2026-05-29 LBT7654 DJE → KTW May 29, 02:10 UTCMay 29, 04:50 UTC2h 40m
2026-05-28 LBT763 LIL → DJE May 28, 14:10 UTCMay 28, 16:10 UTC2h 0m
2026-05-28 LBT762 DJE → LIL May 28, 10:50 UTCMay 28, 12:55 UTC2h 5m
2026-05-28 LBT7631 POZ → DJE May 28, 05:45 UTCMay 28, 08:10 UTC2h 25m
2026-05-28 LBT7630 DJE → POZ May 28, 01:30 UTCMay 28, 04:20 UTC2h 50m
2026-05-27 LBT713 SXB → DJE May 27, 08:45 UTCMay 27, 10:40 UTC1h 55m
2026-05-26 LBT385 BRU → DJE May 26, 16:40 UTCMay 27, 07:30 UTC14h 51m
2026-05-26 LBT384 DJE → BRU May 26, 12:54 UTCMay 26, 14:55 UTC2h 0m
2026-05-25 LBT555 CDG → DJE May 25, 10:20 UTCMay 25, 12:35 UTC2h 15m
2026-05-24 LBT554 DJE → CDG May 24, 14:55 UTCMay 25, 08:45 UTC17h 50m
2026-05-24 LBT704 DJE → NTE May 24, 11:55 UTCMay 24, 13:40 UTC1h 45m
2026-05-24 LBT7647 WAW → DJE May 24, 06:50 UTCMay 24, 09:15 UTC2h 25m
2026-05-23 LBT7646 DJE → WAW May 23, 17:00 UTCMay 24, 05:30 UTC12h 31m
2026-05-23 LBT736 DJE → NTE May 23, 14:00 UTCMay 23, 15:45 UTC1h 45m
2026-05-23 LBT2609 DUS → DJE May 23, 09:20 UTCMay 23, 11:10 UTC1h 50m
2026-05-22 LBT2608 DJE → FRA May 22, 17:30 UTCMay 23, 07:50 UTC14h 19m
2026-05-22 LBT2872 BOD → STR May 22, 10:10 UTCMay 22, 16:00 UTC5h 50m
2026-05-21 LBT770 DJE → BOD May 21, 14:10 UTCMay 22, 08:45 UTC18h 35m
2026-05-21 LBT574 DJE → LYS May 21, 11:25 UTCMay 21, 12:45 UTC1h 20m
2026-05-21 LBT7667 WAW → DJE May 21, 06:45 UTCMay 21, 09:15 UTC2h 30m
2026-05-21 LBT7666 DJE → WAW May 21, 01:50 UTCMay 21, 04:40 UTC2h 50m
2026-05-20 LBT713 SXB → DJE May 20, 09:10 UTCMay 20, 11:00 UTC1h 50m
2026-05-20 LBT712 DJE → SXB May 20, 05:55 UTCMay 20, 07:40 UTC1h 45m
2026-05-19 LBT385 BRU → DJE May 19, 16:55 UTCMay 19, 19:00 UTC2h 5m
2026-05-19 LBT384 DJE → BRU May 19, 13:05 UTCMay 19, 15:10 UTC2h 5m
2026-05-18 LBT555 CDG → DJE May 18, 10:10 UTCMay 18, 11:50 UTC1h 40m
2026-05-17 LBT763 LIL → DJE May 17, 15:01 UTCMay 18, 08:45 UTC17h 45m
2026-05-17 LBT762 DJE → LIL May 17, 11:50 UTCMay 17, 13:50 UTC2h 0m
2026-05-17 LBT7647 WAW → DJE May 17, 07:00 UTCMay 17, 09:40 UTC2h 40m
2026-05-17 LBT7646 DJE → WAW May 17, 02:40 UTCMay 17, 05:20 UTC2h 40m
2026-05-16 LBT737 NTE → DJE May 16, 17:20 UTCMay 16, 18:50 UTC1h 30m
2026-05-16 LBT736 DJE → NTE May 16, 13:51 UTCMay 16, 15:45 UTC1h 55m
2026-05-16 LBT2609 DUS → DJE May 16, 09:31 UTCMay 16, 11:25 UTC1h 55m
2026-05-16 LBT2608 DJE → FRA May 16, 05:35 UTCMay 16, 07:45 UTC2h 11m
2026-05-15 LBT2341 - May 15, 14:10 UTCMay 15, 16:40 UTC2h 29m
2026-05-15 LBT2340 DJE → DUS May 15, 10:30 UTCMay 15, 12:30 UTC2h 0m
2026-05-14 LBT7671 WRO → DJE May 14, 21:10 UTCMay 14, 23:45 UTC2h 35m
2026-05-14 LBT7670 DJE → WRO May 14, 17:15 UTCMay 14, 19:45 UTC2h 30m
2026-05-14 LBT737 NTE → DJE May 14, 13:30 UTCMay 14, 15:05 UTC1h 35m
2026-05-14 LBT736 DJE → NTE May 14, 10:35 UTCMay 14, 12:30 UTC1h 55m
2026-05-14 LBT7631 POZ → DJE May 14, 05:45 UTCMay 14, 08:25 UTC2h 40m
2026-05-13 LBT7630 DJE → POZ May 13, 08:55 UTCMay 14, 04:10 UTC19h 15m
2026-05-13 LBT712 DJE → SXB May 13, 05:15 UTCMay 13, 07:25 UTC2h 10m
2026-05-12 LBT712 DJE → SXB May 12, 09:15 UTCMay 13, 07:25 UTC22h 10m
2026-05-12 LBT770 DJE → BOD May 12, 06:25 UTCMay 12, 08:05 UTC1h 40m
2026-05-11 LBT2047 FRA → DJE May 11, 09:15 UTCMay 11, 11:25 UTC2h 10m
2026-05-10 LBT2046 DJE → FRA May 10, 17:49 UTCMay 11, 07:30 UTC13h 40m

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

Mode-S 4D23BB frequently asked

What is Mode-S code 4D23BB?
4D23BB is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-MMO.
Where is Mode-S 4D23BB registered?
Mode-S code 4D23BB is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D23BB broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D23BB, octal 23221673, decimal 5,055,419.
What flights does 4D23BB operate?
Mode-S 4D23BB has broadcast 20 distinct callsigns, including LBT770, LBT7667, LBT763, LBT2608, LBT736.