sensors Mode-S transponder
A72373
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N55915 · PIPER PA-28-140/150/160/180 · operated by LONCELLA JAMES G
- Hex
- A72373
- Octal
- 51621563
- Decimal
- 10,953,587
- Country
- US
- Tail
- N55915
- Type
- P28A
- Flights observed
- 36
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- 54m ago
Current position
Country allocation
The ICAO 24-bit address A72373 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 |
|---|---|---|---|
| N55915 | - | 36 | 2026-07-20 |
Recent flights last 36
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-20 | N55915 | - | Jul 20, 18:10 UTC | Jul 20, 18:45 UTC | 35m |
| 2026-07-18 | N55915 | - | Jul 18, 14:30 UTC | Jul 18, 14:50 UTC | 20m |
| 2026-07-18 | N55915 | - | Jul 18, 13:10 UTC | Jul 18, 13:30 UTC | 20m |
| 2026-07-13 | N55915 | - | Jul 13, 17:45 UTC | Jul 13, 20:10 UTC | 2h 25m |
| 2026-07-09 | N55915 | - | Jul 9, 18:50 UTC | Jul 9, 21:30 UTC | 2h 40m |
| 2026-07-03 | N55915 | - | Jul 3, 12:20 UTC | Jul 3, 12:40 UTC | 20m |
| 2026-07-03 | N55915 | - | Jul 3, 11:00 UTC | Jul 3, 11:25 UTC | 25m |
| 2026-06-30 | N55915 | - | Jun 30, 10:45 UTC | Jun 30, 13:00 UTC | 2h 15m |
| 2026-06-29 | N55915 | - | Jun 29, 15:45 UTC | Jun 29, 18:19 UTC | 2h 35m |
| 2026-06-28 | N55915 | - | Jun 28, 16:29 UTC | Jun 28, 16:49 UTC | 20m |
| 2026-06-22 | N55915 | - | Jun 22, 21:14 UTC | Jun 22, 23:50 UTC | 2h 35m |
| 2026-06-22 | N55915 | - | Jun 22, 19:34 UTC | Jun 22, 20:10 UTC | 35m |
| 2026-06-21 | N55915 | - | Jun 21, 20:14 UTC | Jun 21, 20:29 UTC | 15m |
| 2026-06-21 | N55915 | - | Jun 21, 11:49 UTC | Jun 21, 13:00 UTC | 1h 10m |
| 2026-06-20 | N55915 | - | Jun 20, 13:04 UTC | Jun 20, 13:39 UTC | 35m |
| 2026-06-20 | N55915 | - | Jun 20, 11:49 UTC | Jun 20, 12:09 UTC | 20m |
| 2026-06-11 | N55915 | - | Jun 11, 13:25 UTC | Jun 11, 16:05 UTC | 2h 40m |
| 2026-06-06 | N55915 | - | Jun 6, 14:04 UTC | Jun 6, 14:25 UTC | 20m |
| 2026-06-06 | N55915 | - | Jun 6, 11:49 UTC | Jun 6, 12:10 UTC | 20m |
| 2026-06-05 | N55915 | - | Jun 5, 16:00 UTC | Jun 5, 18:15 UTC | 2h 15m |
| 2026-06-04 | N55915 | - | Jun 4, 17:00 UTC | Jun 4, 17:15 UTC | 15m |
| 2026-06-04 | N55915 | - | Jun 4, 15:40 UTC | Jun 4, 15:50 UTC | 10m |
| 2026-05-31 | N55915 | - | May 31, 15:25 UTC | May 31, 15:45 UTC | 20m |
| 2026-05-31 | N55915 | - | May 31, 14:30 UTC | May 31, 14:55 UTC | 25m |
| 2026-05-30 | N55915 | - | May 30, 19:10 UTC | May 30, 22:00 UTC | 2h 50m |
| 2026-05-24 | N55915 | - | May 24, 19:30 UTC | May 24, 21:45 UTC | 2h 15m |
| 2026-05-22 | N55915 | - | May 22, 16:40 UTC | May 22, 19:10 UTC | 2h 30m |
| 2026-05-22 | N55915 | - | May 22, 13:55 UTC | May 22, 16:00 UTC | 2h 5m |
| 2026-05-16 | N55915 | - | May 16, 13:11 UTC | May 16, 13:21 UTC | 10m |
| 2026-05-16 | N55915 | JST → IDI | May 16, 12:01 UTC | May 16, 12:21 UTC | 20m |
| 2026-05-12 | N55915 | - | May 12, 20:01 UTC | May 12, 20:55 UTC | 55m |
| 2026-05-10 | N55915 | - | May 10, 13:44 UTC | May 10, 16:20 UTC | 2h 35m |
| 2026-05-09 | N55915 | - | May 9, 13:00 UTC | May 9, 13:30 UTC | 30m |
| 2026-05-09 | N55915 | - | May 9, 11:30 UTC | May 9, 11:55 UTC | 25m |
| 2026-04-18 | N55915 | - | Apr 18, 12:50 UTC | Apr 18, 13:20 UTC | 30m |
| 2026-04-18 | N55915 | - | Apr 18, 11:20 UTC | Apr 18, 11:40 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 N55915 page for operator, model, and routing details .