sensors Mode-S transponder
AD8C1F
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N972LT · PIPER PA-28R-180/200/201 · operated by UNIVERSITY OF LA SYSTEM DBA, LOUISIANA TECH UNIVERSITY, DEPT OF PROFESSIONAL AVIATION
- Hex
- AD8C1F
- Octal
- 53306037
- Decimal
- 11,373,599
- Country
- US
- Tail
- N972LT
- Type
- P28R
- Flights observed
- 44
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- Jul 20, 16:00 UTC
Last known position
Country allocation
The ICAO 24-bit address AD8C1F 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 |
|---|---|---|---|
| N972LT | - | 44 | 2026-07-20 |
Recent flights last 44
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-20 | N972LT | - | Jul 20, 15:45 UTC | Jul 20, 16:00 UTC | 15m |
| 2026-07-17 | N972LT | - | Jul 17, 23:10 UTC | Jul 18, 00:04 UTC | 55m |
| 2026-07-17 | N972LT | NEW → NEW | Jul 17, 20:44 UTC | Jul 17, 22:15 UTC | 1h 30m |
| 2026-07-17 | N972LT | - | Jul 17, 17:09 UTC | Jul 17, 17:25 UTC | 15m |
| 2026-07-17 | N972LT | - | Jul 17, 16:00 UTC | Jul 17, 16:34 UTC | 35m |
| 2026-07-17 | N972LT | - | Jul 17, 11:35 UTC | Jul 17, 12:25 UTC | 50m |
| 2026-07-17 | N972LT | - | Jul 17, 10:50 UTC | Jul 17, 11:04 UTC | 15m |
| 2026-07-16 | N972LT | - | Jul 16, 22:45 UTC | Jul 16, 23:05 UTC | 20m |
| 2026-07-16 | N972LT | - | Jul 16, 20:09 UTC | Jul 16, 21:10 UTC | 1h 0m |
| 2026-07-16 | N972LT | BTR → BTR | Jul 16, 16:09 UTC | Jul 16, 17:30 UTC | 1h 20m |
| 2026-07-16 | N972LT | - | Jul 16, 11:20 UTC | Jul 16, 12:25 UTC | 1h 5m |
| 2026-07-15 | N972LT | - | Jul 15, 19:55 UTC | Jul 15, 20:05 UTC | 10m |
| 2026-07-15 | N972LT | - | Jul 15, 15:50 UTC | Jul 15, 16:05 UTC | 15m |
| 2026-07-12 | N972LT | - | Jul 12, 21:45 UTC | Jul 12, 22:00 UTC | 15m |
| 2026-07-09 | N972LT | - | Jul 9, 15:40 UTC | Jul 9, 15:50 UTC | 10m |
| 2026-07-07 | N972LT | - | Jul 7, 19:30 UTC | Jul 7, 20:00 UTC | 30m |
| 2026-07-06 | N972LT | - | Jul 6, 15:25 UTC | Jul 6, 15:50 UTC | 25m |
| 2026-06-30 | N972LT | - | Jun 30, 15:25 UTC | Jun 30, 15:55 UTC | 30m |
| 2026-06-30 | N972LT | - | Jun 30, 13:25 UTC | Jun 30, 13:55 UTC | 30m |
| 2026-06-29 | N972LT | - | Jun 29, 22:49 UTC | Jun 29, 23:05 UTC | 15m |
| 2026-06-26 | N972LT | - | Jun 26, 15:54 UTC | Jun 26, 16:05 UTC | 10m |
| 2026-06-23 | N972LT | - | Jun 23, 21:24 UTC | Jun 23, 21:54 UTC | 30m |
| 2026-06-22 | N972LT | - | Jun 22, 23:35 UTC | Jun 22, 23:50 UTC | 15m |
| 2026-06-22 | N972LT | - | Jun 22, 00:20 UTC | Jun 22, 00:50 UTC | 30m |
| 2026-06-14 | N972LT | - | Jun 14, 22:40 UTC | Jun 14, 23:00 UTC | 20m |
| 2026-06-13 | N972LT | - | Jun 13, 20:20 UTC | Jun 13, 20:55 UTC | 35m |
| 2026-06-09 | N972LT | - | Jun 9, 17:05 UTC | Jun 9, 18:10 UTC | 1h 5m |
| 2026-06-05 | N972LT | - | Jun 5, 13:40 UTC | Jun 5, 13:50 UTC | 10m |
| 2026-05-22 | N972LT | - | May 22, 20:20 UTC | May 22, 20:30 UTC | 10m |
| 2026-05-20 | N972LT | - | May 20, 22:35 UTC | May 20, 23:05 UTC | 30m |
| 2026-05-18 | N972LT | - | May 18, 23:25 UTC | May 18, 23:50 UTC | 25m |
| 2026-05-18 | N972LT | - | May 18, 21:35 UTC | May 18, 21:50 UTC | 15m |
| 2026-05-17 | N972LT | - | May 17, 21:30 UTC | May 17, 22:01 UTC | 30m |
| 2026-05-15 | N972LT | - | May 15, 19:20 UTC | May 15, 19:30 UTC | 10m |
| 2026-05-11 | N972LT | - | May 11, 21:35 UTC | May 11, 22:00 UTC | 25m |
| 2026-05-08 | N972LT | - | May 8, 19:20 UTC | May 8, 19:55 UTC | 35m |
| 2026-05-08 | N972LT | - | May 8, 17:35 UTC | May 8, 17:45 UTC | 10m |
| 2026-05-08 | N972LT | - | May 8, 15:20 UTC | May 8, 15:40 UTC | 20m |
| 2026-05-07 | N972LT | - | May 7, 20:35 UTC | May 7, 21:05 UTC | 30m |
| 2026-05-07 | N972LT | - | May 7, 14:20 UTC | May 7, 14:30 UTC | 10m |
| 2026-05-06 | N972LT | - | May 6, 15:50 UTC | May 6, 16:30 UTC | 40m |
| 2026-05-06 | N972LT | - | May 6, 13:20 UTC | May 6, 13:50 UTC | 30m |
| 2026-04-17 | N972LT | - | Apr 17, 15:20 UTC | Apr 17, 15:45 UTC | 25m |
| 2026-04-16 | N972LT | - | Apr 16, 23:45 UTC | Apr 17, 00:05 UTC | 20m |
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 N972LT page for operator, model, and routing details .