sensors Mode-S transponder
4B850C
ICAO 24-bit transponder address · allocated to Turkey
Currently assigned to TC-AHL · GULFSTREAM 4
- Hex
- 4B850C
- Octal
- 22702414
- Decimal
- 4,949,260
- Country
- TR
- Tail
- TC-AHL
- Type
- GLF4
- Flights observed
- 32
- Distinct callsigns
- 2
- Country
- TR
- Last broadcast
- 18d ago
Last known position
Country allocation
The ICAO 24-bit address 4B850C falls within the block assigned to Turkey (TR) by ICAO Annex 10, Volume III. Every aircraft registered in Turkey 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 2 distinct
Recent flights last 32
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | BKI606 | - | Jul 26, 13:50 UTC | Jul 26, 14:30 UTC | 40m |
| 2026-07-25 | BKI606 | - | Jul 25, 13:10 UTC | Jul 26, 06:25 UTC | 17h 15m |
| 2026-07-22 | BKI606 | - | Jul 22, 11:15 UTC | Jul 22, 11:55 UTC | 40m |
| 2026-07-21 | BKI606 | - | Jul 21, 10:20 UTC | Jul 22, 04:55 UTC | 18h 35m |
| 2026-07-17 | BKI606 | - | Jul 17, 02:50 UTC | Jul 17, 04:04 UTC | 1h 15m |
| 2026-07-16 | BKI606 | - | Jul 16, 21:45 UTC | Jul 17, 00:25 UTC | 2h 40m |
| 2026-07-16 | BKI606 | - | Jul 16, 18:10 UTC | Jul 16, 20:39 UTC | 2h 30m |
| 2026-07-13 | BKI606 | IBZ → ISL | Jul 13, 19:10 UTC | Jul 13, 22:00 UTC | 2h 50m |
| 2026-07-13 | BKI606 | - | Jul 13, 16:00 UTC | Jul 13, 18:10 UTC | 2h 10m |
| 2026-07-11 | BKI606 | - | Jul 11, 05:20 UTC | Jul 11, 07:25 UTC | 2h 5m |
| 2026-07-11 | BKI606 | - | Jul 11, 02:30 UTC | Jul 11, 04:01 UTC | 1h 30m |
| 2026-07-10 | TCAHL | - | Jul 10, 22:50 UTC | Jul 11, 00:35 UTC | 1h 45m |
| 2026-07-03 | TCAHL | - | Jul 3, 14:20 UTC | Jul 3, 18:50 UTC | 4h 30m |
| 2026-06-30 | TCAHL | - | Jun 30, 13:35 UTC | Jun 30, 18:05 UTC | 4h 30m |
| 2026-06-29 | TCAHL | - | Jun 29, 18:19 UTC | Jun 30, 17:00 UTC | 22h 40m |
| 2026-06-29 | TCAHL | - | Jun 29, 16:44 UTC | Jun 29, 17:40 UTC | 55m |
| 2026-06-28 | TCAHL | - | Jun 28, 16:00 UTC | Jun 28, 16:49 UTC | 50m |
| 2026-06-26 | TCAHL | - | Jun 26, 13:34 UTC | Jun 26, 16:49 UTC | 3h 15m |
| 2026-06-08 | TCAHL | - | Jun 8, 09:45 UTC | Jun 8, 14:15 UTC | 4h 30m |
| 2026-06-01 | TCAHL | - | Jun 1, 02:10 UTC | Jun 1, 06:05 UTC | 3h 55m |
| 2026-05-31 | TCAHL | - | May 31, 22:00 UTC | Jun 1, 00:05 UTC | 2h 5m |
| 2026-05-31 | TCAHL | - | May 31, 14:35 UTC | May 31, 15:55 UTC | 1h 20m |
| 2026-05-29 | TCAHL | AMM → ISL | May 29, 15:00 UTC | May 29, 16:10 UTC | 1h 10m |
| 2026-05-29 | TCAHL | - | May 29, 12:35 UTC | May 29, 12:55 UTC | 20m |
| 2026-05-25 | TCAHL | - | May 25, 07:30 UTC | May 25, 08:00 UTC | 30m |
| 2026-05-25 | TCAHL | - | May 25, 03:45 UTC | May 25, 04:50 UTC | 1h 5m |
| 2026-05-21 | TCAHL | - | May 21, 09:10 UTC | May 21, 09:20 UTC | 10m |
| 2026-05-15 | TCAHL | - | May 15, 13:20 UTC | May 15, 14:50 UTC | 1h 29m |
| 2026-05-11 | TCAHL | - | May 11, 19:45 UTC | May 11, 20:55 UTC | 1h 10m |
| 2026-05-11 | TCAHL | - | May 11, 17:35 UTC | May 11, 18:20 UTC | 45m |
| 2026-05-11 | TCAHL | - | May 11, 16:30 UTC | May 11, 16:55 UTC | 25m |
| 2026-05-09 | TCAHL | - | May 9, 14:30 UTC | May 9, 16:00 UTC | 1h 30m |
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 TC-AHL page for operator, model, and routing details .