sensors Mode-S transponder
44CCCA
ICAO 24-bit transponder address · allocated to Belgium
Currently assigned to OO-SFJ · AIRBUS A-330-300
- Hex
- 44CCCA
- Octal
- 21146312
- Decimal
- 4,508,874
- Country
- BE
- Tail
- OO-SFJ
- Type
- A333
- Flights observed
- 79
- Distinct callsigns
- 18
- Country
- BE
- Last broadcast
- 5h ago
Last known position
Country allocation
The ICAO 24-bit address 44CCCA 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 18 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| BEL52B | Brussels Airlines | 13 | 2026-05-29 |
| BEL27A | Brussels Airlines | 11 | 2026-05-28 |
| BEL1CP | Brussels Airlines | 10 | 2026-05-29 |
| BEL5YH | Brussels Airlines | 9 | 2026-05-27 |
| BEL21W | Brussels Airlines | 8 | 2026-05-20 |
| BEL2FU | Brussels Airlines | 6 | 2026-05-26 |
| BEL23D | Brussels Airlines | 4 | 2026-05-25 |
| BEL6ZD | Brussels Airlines | 3 | 2026-05-08 |
| BEL28A | Brussels Airlines | 3 | 2026-05-26 |
| BEL24D | Brussels Airlines | 3 | 2026-04-27 |
| BEL2LC | Brussels Airlines | 2 | 2026-05-05 |
| BEL5TA | Brussels Airlines | 1 | 2026-05-02 |
| BEL5RH | Brussels Airlines | 1 | 2026-05-09 |
| BEL3YG | Brussels Airlines | 1 | 2026-05-10 |
| BEL1NA | Brussels Airlines | 1 | 2026-05-15 |
| BEL1319 | Brussels Airlines | 1 | 2026-05-13 |
| BEL1229 | Brussels Airlines | 1 | 2026-05-11 |
| BEL 1W | - | 1 | 2026-04-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | BEL52B | JFK → BRU | May 29, 22:25 UTC | May 30, 05:20 UTC | 6h 55m |
| 2026-05-29 | BEL1CP | BRU → JFK | May 29, 08:55 UTC | May 29, 16:20 UTC | 7h 26m |
| 2026-05-28 | BEL27A | BRU → ACC | May 28, 09:55 UTC | May 29, 03:30 UTC | 17h 35m |
| 2026-05-27 | BEL27A | BRU → ACC | May 27, 10:00 UTC | May 28, 03:25 UTC | 17h 25m |
| 2026-05-27 | BEL5YH | IAD → BRU | May 27, 03:39 UTC | May 27, 05:19 UTC | 1h 40m |
| 2026-05-26 | BEL5YH | IAD → BRU | May 26, 22:05 UTC | May 27, 00:00 UTC | 1h 55m |
| 2026-05-26 | BEL2FU | BRU → HER | May 26, 09:09 UTC | May 26, 17:20 UTC | 8h 10m |
| 2026-05-26 | BEL28A | ACC → BRU | May 26, 01:14 UTC | May 26, 03:19 UTC | 2h 5m |
| 2026-05-25 | BEL23D | BRU → DSS | May 25, 16:30 UTC | May 25, 16:40 UTC | 10m |
| 2026-05-25 | BEL27A | BRU → ACC | May 25, 10:15 UTC | May 25, 12:25 UTC | 2h 10m |
| 2026-05-20 | BEL21W | BRU → FNA | May 20, 11:15 UTC | May 21, 04:15 UTC | 17h 0m |
| 2026-05-19 | BEL5YH | IAD → BRU | May 19, 22:15 UTC | May 20, 05:30 UTC | 7h 16m |
| 2026-05-19 | BEL2FU | BRU → HER | May 19, 09:10 UTC | May 19, 17:15 UTC | 8h 5m |
| 2026-05-18 | BEL52B | JFK → BRU | May 18, 22:30 UTC | May 19, 05:20 UTC | 6h 50m |
| 2026-05-18 | BEL1CP | BRU → JFK | May 18, 09:00 UTC | May 18, 16:30 UTC | 7h 30m |
| 2026-05-17 | BEL52B | JFK → BRU | May 17, 22:40 UTC | May 18, 05:30 UTC | 6h 50m |
| 2026-05-17 | BEL1CP | BRU → JFK | May 17, 08:50 UTC | May 17, 16:30 UTC | 7h 40m |
| 2026-05-15 | BEL1NA | EBB → BRU | May 15, 08:45 UTC | May 16, 04:30 UTC | 19h 44m |
| 2026-05-14 | BEL27A | BRU → ACC | May 14, 09:55 UTC | May 15, 03:25 UTC | 17h 30m |
| 2026-05-13 | BEL27A | BRU → ACC | May 13, 09:55 UTC | May 14, 03:10 UTC | 17h 15m |
| 2026-05-13 | BEL1319 | COO → BRU | May 13, 01:15 UTC | May 13, 03:05 UTC | 1h 50m |
| 2026-05-11 | BEL1229 | BRU → LFW | May 11, 09:50 UTC | May 11, 12:15 UTC | 2h 25m |
| 2026-05-10 | BEL3YG | NBO → BRU | May 10, 02:55 UTC | May 10, 04:45 UTC | 1h 50m |
| 2026-05-09 | BEL5RH | BRU → EBB | May 9, 09:30 UTC | May 9, 11:35 UTC | 2h 5m |
| 2026-05-08 | BEL6ZD | BRU → OUA | May 8, 09:09 UTC | May 9, 03:30 UTC | 18h 20m |
| 2026-05-07 | BEL27A | BRU → ACC | May 7, 09:40 UTC | May 8, 03:04 UTC | 17h 25m |
| 2026-05-06 | BEL6ZD | BRU → OUA | May 6, 09:20 UTC | May 7, 03:35 UTC | 18h 14m |
| 2026-05-05 | BEL2LC | BRU → ABJ | May 5, 10:15 UTC | May 6, 03:45 UTC | 17h 30m |
| 2026-05-03 | BEL52B | JFK → BRU | May 3, 22:39 UTC | May 4, 05:30 UTC | 6h 50m |
| 2026-05-03 | BEL1CP | BRU → JFK | May 3, 08:55 UTC | May 3, 16:30 UTC | 7h 35m |
| 2026-05-02 | BEL5TA | BRU → ABJ | May 2, 09:55 UTC | May 3, 02:55 UTC | 17h 0m |
| 2026-05-01 | BEL5YH | IAD → BRU | May 1, 23:45 UTC | May 2, 05:15 UTC | 5h 31m |
| 2026-05-01 | BEL5YH | IAD → BRU | May 1, 21:55 UTC | May 1, 23:40 UTC | 1h 45m |
| 2026-05-01 | BEL2FU | BRU → HER | May 1, 09:00 UTC | May 1, 17:00 UTC | 8h 0m |
| 2026-04-30 | BEL5YH | IAD → BRU | Apr 30, 22:15 UTC | May 1, 05:30 UTC | 7h 15m |
| 2026-04-30 | BEL2FU | BRU → HER | Apr 30, 09:30 UTC | Apr 30, 17:25 UTC | 7h 55m |
| 2026-04-29 | BEL6ZD | BRU → OUA | Apr 29, 08:55 UTC | Apr 30, 03:10 UTC | 18h 15m |
| 2026-04-28 | BEL5YH | IAD → BRU | Apr 28, 23:40 UTC | Apr 29, 05:35 UTC | 5h 55m |
| 2026-04-28 | BEL5YH | IAD → BRU | Apr 28, 21:55 UTC | Apr 28, 23:35 UTC | 1h 40m |
| 2026-04-28 | BEL2FU | BRU → HER | Apr 28, 09:35 UTC | Apr 28, 17:20 UTC | 7h 45m |
| 2026-04-27 | BEL24D | DSS → BRU | Apr 27, 21:30 UTC | Apr 28, 02:45 UTC | 5h 15m |
| 2026-04-27 | BEL24D | DSS → BRU | Apr 27, 19:50 UTC | Apr 27, 20:10 UTC | 20m |
| 2026-04-27 | BEL23D | BRU → DSS | Apr 27, 17:50 UTC | Apr 27, 18:20 UTC | 30m |
| 2026-04-27 | BEL23D | BRU → DSS | Apr 27, 11:05 UTC | Apr 27, 17:00 UTC | 5h 55m |
| 2026-04-26 | BEL5YH | IAD → BRU | Apr 26, 21:50 UTC | Apr 27, 05:20 UTC | 7h 30m |
| 2026-04-26 | BEL2FU | BRU → HER | Apr 26, 09:20 UTC | Apr 26, 17:10 UTC | 7h 50m |
| 2026-04-25 | BEL27A | BRU → ACC | Apr 25, 10:20 UTC | Apr 26, 03:30 UTC | 17h 10m |
| 2026-04-24 | BEL52B | JFK → BRU | Apr 24, 22:40 UTC | Apr 25, 05:45 UTC | 7h 5m |
| 2026-04-24 | BEL1CP | BRU → JFK | Apr 24, 09:15 UTC | Apr 24, 16:10 UTC | 6h 55m |
| 2026-04-23 | BEL27A | BRU → ACC | Apr 23, 09:55 UTC | Apr 24, 03:35 UTC | 17h 39m |
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-SFJ page for operator, model, and routing details .