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
- 139
- Distinct callsigns
- 20
- Country
- BE
- Last broadcast
- 3h 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| BEL52B | - | 21 | 2026-07-13 |
| BEL1CP | - | 19 | 2026-07-14 |
| BEL27A | - | 18 | 2026-07-08 |
| BEL5YH | - | 14 | 2026-07-12 |
| BEL2FU | - | 11 | 2026-07-12 |
| BEL21W | Brussels Airlines | 9 | 2026-06-05 |
| BEL5RH | - | 6 | 2026-07-10 |
| BEL3YG | - | 5 | 2026-07-11 |
| BEL28A | - | 5 | 2026-07-01 |
| BEL4KE | - | 4 | 2026-06-14 |
| BEL23D | Brussels Airlines | 4 | 2026-05-25 |
| BEL6ZD | Brussels Airlines | 3 | 2026-05-08 |
| BEL24D | Brussels Airlines | 3 | 2026-04-27 |
| BEL1NA | Brussels Airlines | 3 | 2026-06-03 |
| BEL8LE | Brussels Airlines | 2 | 2026-06-03 |
| BEL2LC | Brussels Airlines | 2 | 2026-05-05 |
| BEL1BQ | Brussels Airlines | 2 | 2026-06-15 |
| BEL5TA | Brussels Airlines | 1 | 2026-05-02 |
| BEL4TH | - | 1 | 2026-07-11 |
| BEL2XJ | - | 1 | 2026-07-09 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | BEL1CP | BRU → JFK | Jul 14, 09:00 UTC | Jul 14, 16:20 UTC | 7h 20m |
| 2026-07-13 | BEL52B | - | Jul 13, 22:55 UTC | Jul 14, 05:40 UTC | 6h 45m |
| 2026-07-13 | BEL1CP | BRU → JFK | Jul 13, 09:25 UTC | Jul 13, 16:55 UTC | 7h 30m |
| 2026-07-12 | BEL5YH | IAD → BRU | Jul 12, 23:05 UTC | Jul 13, 06:55 UTC | 7h 50m |
| 2026-07-12 | BEL2FU | BRU → IAD | Jul 12, 09:15 UTC | Jul 12, 17:15 UTC | 8h 0m |
| 2026-07-11 | BEL4TH | BRU → BRU | Jul 11, 11:00 UTC | Jul 12, 03:20 UTC | 16h 20m |
| 2026-07-11 | BEL3YG | - | Jul 11, 02:15 UTC | Jul 11, 04:10 UTC | 1h 55m |
| 2026-07-10 | BEL5RH | - | Jul 10, 09:00 UTC | Jul 10, 11:05 UTC | 2h 5m |
| 2026-07-09 | BEL2XJ | - | Jul 9, 21:25 UTC | Jul 10, 02:55 UTC | 5h 30m |
| 2026-07-09 | BEL2RG | BRU → DSS | Jul 9, 10:55 UTC | Jul 9, 16:35 UTC | 5h 40m |
| 2026-07-08 | BEL27A | - | Jul 8, 10:20 UTC | Jul 9, 04:05 UTC | 17h 45m |
| 2026-07-05 | BEL52B | JFK → BRU | Jul 5, 23:35 UTC | Jul 6, 05:55 UTC | 6h 20m |
| 2026-07-05 | BEL1CP | BRU → JFK | Jul 5, 08:55 UTC | Jul 5, 16:55 UTC | 8h 0m |
| 2026-07-04 | BEL52B | JFK → BRU | Jul 4, 22:50 UTC | Jul 5, 05:20 UTC | 6h 30m |
| 2026-07-04 | BEL1CP | - | Jul 4, 09:25 UTC | Jul 4, 17:35 UTC | 8h 10m |
| 2026-07-02 | BEL52B | JFK → BRU | Jul 2, 22:40 UTC | Jul 3, 05:15 UTC | 6h 35m |
| 2026-07-02 | BEL1CP | - | Jul 2, 09:00 UTC | Jul 2, 17:10 UTC | 8h 10m |
| 2026-07-01 | BEL28A | - | Jul 1, 10:15 UTC | Jul 2, 04:05 UTC | 17h 50m |
| 2026-06-30 | BEL52B | JFK → BRU | Jun 30, 22:45 UTC | Jul 1, 05:25 UTC | 6h 40m |
| 2026-06-30 | BEL1CP | - | Jun 30, 09:05 UTC | Jun 30, 16:30 UTC | 7h 25m |
| 2026-06-29 | BEL3YG | - | Jun 29, 10:34 UTC | Jun 30, 05:10 UTC | 18h 35m |
| 2026-06-29 | BEL5RH | - | Jun 29, 10:20 UTC | Jun 30, 05:10 UTC | 18h 50m |
| 2026-06-28 | BEL27A | - | Jun 28, 10:44 UTC | Jun 29, 04:14 UTC | 17h 30m |
| 2026-06-27 | BEL5YH | IAD → BRU | Jun 27, 22:04 UTC | Jun 28, 05:04 UTC | 7h 0m |
| 2026-06-27 | BEL2FU | - | Jun 27, 09:40 UTC | Jun 27, 17:34 UTC | 7h 55m |
| 2026-06-26 | BEL52B | JFK → BRU | Jun 26, 22:40 UTC | Jun 27, 05:10 UTC | 6h 30m |
| 2026-06-26 | BEL1CP | - | Jun 26, 10:25 UTC | Jun 26, 18:09 UTC | 7h 45m |
| 2026-06-25 | BEL27A | BRU → BRU | Jun 25, 10:50 UTC | Jun 26, 04:34 UTC | 17h 45m |
| 2026-06-24 | BEL5YH | IAD → BRU | Jun 24, 22:10 UTC | Jun 25, 05:00 UTC | 6h 50m |
| 2026-06-24 | BEL2FU | - | Jun 24, 09:24 UTC | Jun 24, 17:40 UTC | 8h 15m |
| 2026-06-23 | BEL27A | - | Jun 23, 10:49 UTC | Jun 24, 04:15 UTC | 17h 25m |
| 2026-06-23 | BEL3YG | - | Jun 23, 01:50 UTC | Jun 23, 04:29 UTC | 2h 40m |
| 2026-06-22 | BEL5RH | - | Jun 22, 09:19 UTC | Jun 22, 11:04 UTC | 1h 45m |
| 2026-06-21 | BEL27A | - | Jun 21, 10:49 UTC | Jun 22, 04:19 UTC | 17h 30m |
| 2026-06-20 | BEL52B | JFK → BRU | Jun 20, 22:30 UTC | Jun 21, 04:49 UTC | 6h 20m |
| 2026-06-20 | BEL1CP | BRU → JFK | Jun 20, 09:34 UTC | Jun 20, 17:14 UTC | 7h 40m |
| 2026-06-17 | BEL3YG | - | Jun 17, 02:15 UTC | Jun 17, 04:15 UTC | 2h 0m |
| 2026-06-16 | BEL5RH | BRU → EBB | Jun 16, 09:00 UTC | Jun 16, 11:05 UTC | 2h 5m |
| 2026-06-15 | BEL1BQ | HER → BRU | Jun 15, 11:34 UTC | Jun 16, 03:50 UTC | 16h 15m |
| 2026-06-14 | BEL27A | BRU → ACC | Jun 14, 10:25 UTC | Jun 15, 04:25 UTC | 17h 59m |
| 2026-06-14 | BEL4KE | - | Jun 14, 02:40 UTC | Jun 14, 04:35 UTC | 1h 55m |
| 2026-06-13 | BEL4KE | - | Jun 13, 08:50 UTC | Jun 14, 04:35 UTC | 19h 46m |
| 2026-06-11 | BEL28A | ACC → BRU | Jun 11, 10:30 UTC | Jun 12, 04:10 UTC | 17h 40m |
| 2026-06-10 | BEL5YH | IAD → BRU | Jun 10, 22:30 UTC | Jun 11, 05:45 UTC | 7h 15m |
| 2026-06-10 | BEL2FU | BRU → HER | Jun 10, 09:10 UTC | Jun 10, 17:10 UTC | 8h 0m |
| 2026-06-09 | BEL4KE | EBB → BRU | Jun 9, 10:35 UTC | Jun 10, 04:35 UTC | 18h 0m |
| 2026-06-09 | BEL4KE | EBB → BRU | Jun 9, 08:50 UTC | Jun 10, 04:35 UTC | 19h 45m |
| 2026-06-08 | BEL1BQ | HER → BRU | Jun 8, 11:15 UTC | Jun 9, 03:25 UTC | 16h 10m |
| 2026-06-07 | BEL52B | JFK → BRU | Jun 7, 22:40 UTC | Jun 8, 05:25 UTC | 6h 45m |
| 2026-06-07 | BEL1CP | BRU → JFK | Jun 7, 09:10 UTC | Jun 7, 16:45 UTC | 7h 35m |
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 .