sensors Mode-S transponder

44D1BA

ICAO 24-bit transponder address · allocated to Belgium

Currently assigned to OO-TMZ · BOEING 737 MAX 8

Hex
44D1BA
Octal
21150672
Decimal
4,510,138
Country
BE
Tail
OO-TMZ
Type
B38M
Broadcasting now · callsign JAF1YV · 38,000 ft
Flights observed
320
Distinct callsigns
20
Country
BE
Last broadcast
2h ago

Current position

44D1BA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 44D1BA falls within the block assigned to Belgium (BE) by ICAO Annex 10, Volume III. Every aircraft registered in Belgium 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
JAF88H - 8 2026-07-13
JAF7HW - 8 2026-06-25
JAF61K - 8 2026-06-27
JAF3NE - 8 2026-07-13
JAF42D - 7 2026-07-06
JAF12M - 7 2026-06-25
JAF9WL Jetairfly 6 2026-06-04
JAF7TJ Jetairfly 6 2026-06-03
JAF66L - 6 2026-06-23
JAF62J - 6 2026-06-30
JAF5HJ - 6 2026-06-27
JAF59L Jetairfly 6 2026-06-06
JAF3HX - 6 2026-06-23
JAF2EV Jetairfly 6 2026-06-07
JAF1PB - 6 2026-07-06
JAF1MX Jetairfly 6 2026-06-14
JAF6NT - 5 2026-06-29
JAF5PC - 5 2026-06-29
JAF5KH - 5 2026-06-30
JAF3VE - 5 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JAF3VE - Jul 14, 04:35 UTCJul 14, 07:20 UTC2h 45m
2026-07-13 JAF3EX - Jul 13, 17:30 UTCJul 13, 20:35 UTC3h 5m
2026-07-13 JAF40W - Jul 13, 16:20 UTCJul 13, 16:30 UTC10m
2026-07-13 JAF40W - Jul 13, 12:40 UTCJul 13, 15:45 UTC3h 5m
2026-07-13 JAF3NE - Jul 13, 09:10 UTCJul 13, 11:20 UTC2h 10m
2026-07-13 JAF88H - Jul 13, 05:15 UTCJul 13, 07:50 UTC2h 35m
2026-07-09 JAF9FB ALC → BRU Jul 9, 17:20 UTCJul 9, 19:25 UTC2h 5m
2026-07-09 JAF6LD BRU → ALC Jul 9, 13:50 UTCJul 9, 16:00 UTC2h 10m
2026-07-09 JAF29J - Jul 9, 09:00 UTCJul 9, 12:20 UTC3h 20m
2026-07-09 JAF14K - Jul 9, 04:20 UTCJul 9, 07:10 UTC2h 50m
2026-07-06 JAF1PB - Jul 6, 23:25 UTCJul 7, 02:00 UTC2h 35m
2026-07-06 JAF42D - Jul 6, 19:50 UTCJul 6, 22:20 UTC2h 30m
2026-07-04 JAF1KW - Jul 4, 18:10 UTCJul 4, 22:55 UTC4h 45m
2026-07-04 JAF2XD - Jul 4, 12:15 UTCJul 4, 16:15 UTC4h 0m
2026-07-04 JAF3MJ LEI → BRU Jul 4, 08:25 UTCJul 4, 10:50 UTC2h 25m
2026-07-04 JAF13J - Jul 4, 04:55 UTCJul 4, 07:10 UTC2h 15m
2026-07-03 JAF18V BRU → ASR Jul 3, 17:10 UTCJul 4, 01:35 UTC8h 25m
2026-07-03 JAF3XV - Jul 3, 13:35 UTCJul 3, 15:45 UTC2h 10m
2026-07-03 JAF6VK - Jul 3, 10:15 UTCJul 3, 11:55 UTC1h 40m
2026-07-03 JAF7XM - Jul 3, 06:05 UTCJul 3, 08:45 UTC2h 40m
2026-07-02 JAF84E - Jul 2, 13:15 UTCJul 2, 15:25 UTC2h 10m
2026-07-02 JAF8AV - Jul 2, 09:15 UTCJul 2, 11:50 UTC2h 35m
2026-07-02 JAF72J - Jul 2, 05:25 UTCJul 2, 07:50 UTC2h 25m
2026-07-01 JAF38Y BRU → BRU Jul 1, 12:00 UTCJul 1, 19:50 UTC7h 50m
2026-07-01 JAF3NE - Jul 1, 08:00 UTCJul 1, 10:35 UTC2h 35m
2026-07-01 JAF88H - Jul 1, 04:20 UTCJul 1, 06:30 UTC2h 10m
2026-06-30 JAF9TY - Jun 30, 20:20 UTCJun 30, 23:00 UTC2h 40m
2026-06-30 JAF10Y - Jun 30, 16:40 UTCJun 30, 19:10 UTC2h 30m
2026-06-30 JAF5KH KGS → BRU Jun 30, 09:20 UTCJun 30, 12:25 UTC3h 5m
2026-06-30 JAF62J - Jun 30, 04:30 UTCJun 30, 07:40 UTC3h 10m
2026-06-29 JAF5PC - Jun 29, 18:44 UTCJun 29, 20:44 UTC2h 0m
2026-06-29 JAF6NT - Jun 29, 15:19 UTCJun 29, 17:24 UTC2h 5m
2026-06-29 JAF66H - Jun 29, 09:54 UTCJun 29, 13:49 UTC3h 55m
2026-06-29 JAF35D - Jun 29, 04:25 UTCJun 29, 07:59 UTC3h 35m
2026-06-28 JAF6YV - Jun 28, 19:59 UTCJun 28, 22:24 UTC2h 25m
2026-06-28 JAF2PK - Jun 28, 16:05 UTCJun 28, 18:49 UTC2h 45m
2026-06-28 JAF5KH - Jun 28, 10:39 UTCJun 28, 13:45 UTC3h 5m
2026-06-28 JAF62J - Jun 28, 05:45 UTCJun 28, 08:50 UTC3h 5m
2026-06-27 JAF61K - Jun 27, 20:59 UTCJun 27, 21:19 UTC20m
2026-06-27 JAF61K - Jun 27, 17:34 UTCJun 27, 20:55 UTC3h 20m
2026-06-27 JAF5HJ - Jun 27, 11:55 UTCJun 27, 15:49 UTC3h 55m
2026-06-27 JAF92H - Jun 27, 08:14 UTCJun 27, 10:25 UTC2h 10m
2026-06-27 JAF7VD - Jun 27, 04:15 UTCJun 27, 06:50 UTC2h 35m
2026-06-26 JAF8WB - Jun 26, 18:29 UTCJun 26, 20:50 UTC2h 20m
2026-06-26 JAF8WB - Jun 26, 12:39 UTCJun 26, 15:05 UTC2h 25m
2026-06-25 JAF1PB - Jun 25, 19:39 UTCJun 25, 22:10 UTC2h 30m
2026-06-25 JAF42D - Jun 25, 15:10 UTCJun 25, 17:49 UTC2h 40m
2026-06-25 JAF12M - Jun 25, 09:45 UTCJun 25, 13:14 UTC3h 30m
2026-06-25 JAF7HW - Jun 25, 07:25 UTCJun 25, 07:59 UTC35m
2026-06-25 JAF7HW - Jun 25, 04:10 UTCJun 25, 07:00 UTC2h 50m

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 OO-TMZ page for operator, model, and routing details .

Mode-S 44D1BA frequently asked

What is Mode-S code 44D1BA?
44D1BA is an ICAO 24-bit transponder address. Allocated to Belgium. Assigned to OO-TMZ.
Where is Mode-S 44D1BA registered?
Mode-S code 44D1BA is allocated to Belgium (BE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 44D1BA broadcasting right now?
Yes. Mode-S 44D1BA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 44D1BA, octal 21150672, decimal 4,510,138.
What flights does 44D1BA operate?
Mode-S 44D1BA has broadcast 20 distinct callsigns, including JAF88H, JAF7HW, JAF61K, JAF3NE, JAF42D.