sensors Mode-S transponder
ACDC6B
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N928FM · RAYTHEON 4000 Hawker Horizon · operated by LIG AIR LLC, GMMK LLC
- Hex
- ACDC6B
- Octal
- 53156153
- Decimal
- 11,328,619
- Country
- US
- Tail
- N928FM
- Type
- HA4T
- Flights observed
- 53
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address ACDC6B falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| N928FM | - | 53 | 2026-07-18 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-18 | N928FM | - | Jul 18, 15:50 UTC | Jul 18, 18:20 UTC | 2h 30m |
| 2026-07-09 | N928FM | - | Jul 9, 14:00 UTC | Jul 9, 16:25 UTC | 2h 25m |
| 2026-07-05 | N928FM | - | Jul 5, 17:05 UTC | Jul 5, 18:20 UTC | 1h 15m |
| 2026-07-03 | N928FM | - | Jul 3, 16:00 UTC | Jul 3, 17:25 UTC | 1h 25m |
| 2026-07-02 | N928FM | - | Jul 2, 18:40 UTC | Jul 2, 19:15 UTC | 35m |
| 2026-07-01 | N928FM | - | Jul 1, 12:15 UTC | Jul 1, 12:50 UTC | 35m |
| 2026-06-28 | N928FM | - | Jun 28, 16:25 UTC | Jun 28, 19:09 UTC | 2h 45m |
| 2026-06-26 | N928FM | BUR → APC | Jun 26, 18:24 UTC | Jun 26, 19:20 UTC | 55m |
| 2026-06-25 | N928FM | - | Jun 25, 17:44 UTC | Jun 25, 20:54 UTC | 3h 10m |
| 2026-06-23 | N928FM | - | Jun 23, 21:24 UTC | Jun 23, 22:15 UTC | 50m |
| 2026-06-22 | N928FM | - | Jun 22, 21:14 UTC | Jun 22, 21:59 UTC | 45m |
| 2026-06-21 | N928FM | - | Jun 21, 20:24 UTC | Jun 21, 21:29 UTC | 1h 5m |
| 2026-06-19 | N928FM | - | Jun 19, 21:49 UTC | Jun 19, 22:45 UTC | 55m |
| 2026-06-18 | N928FM | - | Jun 18, 23:55 UTC | Jun 19, 01:19 UTC | 1h 24m |
| 2026-06-17 | N928FM | - | Jun 17, 20:10 UTC | Jun 17, 21:35 UTC | 1h 25m |
| 2026-06-14 | N928FM | - | Jun 14, 18:15 UTC | Jun 14, 20:50 UTC | 2h 35m |
| 2026-06-14 | N928FM | - | Jun 14, 13:10 UTC | Jun 14, 16:35 UTC | 3h 25m |
| 2026-06-13 | N928FM | - | Jun 13, 16:50 UTC | Jun 13, 19:15 UTC | 2h 25m |
| 2026-06-11 | N928FM | - | Jun 11, 19:50 UTC | Jun 11, 23:00 UTC | 3h 10m |
| 2026-06-10 | N928FM | - | Jun 10, 19:50 UTC | Jun 10, 22:30 UTC | 2h 40m |
| 2026-06-10 | N928FM | - | Jun 10, 15:45 UTC | Jun 10, 19:00 UTC | 3h 15m |
| 2026-06-08 | N928FM | - | Jun 8, 14:40 UTC | Jun 8, 16:00 UTC | 1h 20m |
| 2026-06-06 | N928FM | - | Jun 6, 19:44 UTC | Jun 6, 21:09 UTC | 1h 25m |
| 2026-06-03 | N928FM | - | Jun 3, 14:05 UTC | Jun 3, 15:20 UTC | 1h 15m |
| 2026-05-31 | N928FM | - | May 31, 19:55 UTC | May 31, 22:40 UTC | 2h 45m |
| 2026-05-31 | N928FM | - | May 31, 16:35 UTC | May 31, 19:05 UTC | 2h 30m |
| 2026-05-26 | N928FM | - | May 26, 20:24 UTC | May 26, 21:09 UTC | 45m |
| 2026-05-26 | N928FM | - | May 26, 15:14 UTC | May 26, 15:49 UTC | 35m |
| 2026-05-24 | N928FM | - | May 24, 17:10 UTC | May 24, 19:45 UTC | 2h 35m |
| 2026-05-22 | N928FM | - | May 22, 17:05 UTC | May 22, 19:25 UTC | 2h 20m |
| 2026-05-18 | N928FM | - | May 18, 20:45 UTC | May 19, 00:15 UTC | 3h 30m |
| 2026-05-18 | N928FM | - | May 18, 15:50 UTC | May 18, 19:10 UTC | 3h 19m |
| 2026-05-17 | N928FM | - | May 17, 18:10 UTC | May 17, 20:15 UTC | 2h 5m |
| 2026-05-14 | N928FM | - | May 14, 18:30 UTC | May 14, 20:20 UTC | 1h 50m |
| 2026-05-12 | N928FM | - | May 12, 19:35 UTC | May 12, 20:45 UTC | 1h 10m |
| 2026-05-11 | N928FM | - | May 11, 15:10 UTC | May 11, 16:30 UTC | 1h 20m |
| 2026-05-10 | N928FM | - | May 10, 19:00 UTC | May 10, 21:49 UTC | 2h 50m |
| 2026-05-07 | N928FM | - | May 7, 16:00 UTC | May 7, 19:20 UTC | 3h 20m |
| 2026-05-03 | N928FM | - | May 3, 14:25 UTC | May 3, 15:55 UTC | 1h 30m |
| 2026-05-01 | N928FM | - | May 1, 18:00 UTC | May 1, 19:10 UTC | 1h 10m |
| 2026-04-30 | N928FM | - | Apr 30, 14:25 UTC | Apr 30, 17:20 UTC | 2h 55m |
| 2026-04-26 | N928FM | - | Apr 26, 17:15 UTC | Apr 26, 19:45 UTC | 2h 30m |
| 2026-04-24 | N928FM | - | Apr 24, 17:40 UTC | Apr 24, 19:50 UTC | 2h 10m |
| 2026-04-22 | N928FM | - | Apr 22, 16:35 UTC | Apr 22, 18:30 UTC | 1h 55m |
| 2026-04-19 | N928FM | - | Apr 19, 03:35 UTC | Apr 19, 04:45 UTC | 1h 10m |
| 2026-04-18 | N928FM | - | Apr 18, 19:25 UTC | Apr 18, 20:25 UTC | 1h 0m |
| 2026-04-16 | N928FM | - | Apr 16, 19:50 UTC | Apr 16, 20:25 UTC | 35m |
| 2026-04-15 | N928FM | - | Apr 15, 13:01 UTC | Apr 15, 13:15 UTC | 15m |
| 2026-04-15 | N928FM | - | Apr 15, 12:40 UTC | Apr 15, 12:55 UTC | 15m |
| 2026-04-14 | N928FM | - | Apr 14, 16:55 UTC | Apr 14, 18:45 UTC | 1h 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 N928FM page for operator, model, and routing details .