sensors Mode-S transponder
A1F88C
ICAO 24-bit transponder address · allocated to United States
Currently assigned to A226NW · PILATUS PC-12
- Hex
- A1F88C
- Octal
- 50374214
- Decimal
- 10,614,924
- Country
- US
- Tail
- A226NW
- Type
- PC12
- Flights observed
- 40
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- 2h ago
Current position
Country allocation
The ICAO 24-bit address A1F88C 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 |
|---|---|---|---|
| N226NW | - | 40 | 2026-07-19 |
Recent flights last 40
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-19 | N226NW | - | Jul 19, 15:25 UTC | Jul 19, 18:20 UTC | 2h 55m |
| 2026-07-19 | N226NW | - | Jul 19, 14:20 UTC | Jul 19, 14:45 UTC | 25m |
| 2026-07-19 | N226NW | - | Jul 19, 13:00 UTC | Jul 19, 13:25 UTC | 25m |
| 2026-07-18 | N226NW | - | Jul 18, 17:45 UTC | Jul 18, 18:10 UTC | 25m |
| 2026-07-18 | N226NW | - | Jul 18, 15:55 UTC | Jul 18, 17:10 UTC | 1h 15m |
| 2026-07-16 | N226NW | - | Jul 16, 20:55 UTC | Jul 16, 22:10 UTC | 1h 15m |
| 2026-07-16 | N226NW | - | Jul 16, 17:05 UTC | Jul 16, 20:25 UTC | 3h 20m |
| 2026-07-10 | N226NW | - | Jul 10, 17:40 UTC | Jul 10, 20:10 UTC | 2h 30m |
| 2026-07-10 | N226NW | - | Jul 10, 15:40 UTC | Jul 10, 16:55 UTC | 1h 15m |
| 2026-07-06 | N226NW | - | Jul 6, 21:35 UTC | Jul 6, 22:50 UTC | 1h 15m |
| 2026-07-01 | N226NW | - | Jul 1, 22:50 UTC | Jul 2, 00:00 UTC | 1h 10m |
| 2026-06-25 | N226NW | - | Jun 25, 18:00 UTC | Jun 25, 19:09 UTC | 1h 10m |
| 2026-06-22 | N226NW | - | Jun 22, 21:35 UTC | Jun 22, 22:40 UTC | 1h 5m |
| 2026-06-22 | N226NW | COE → BLI | Jun 22, 18:04 UTC | Jun 22, 19:14 UTC | 1h 10m |
| 2026-06-21 | N226NW | BOI → COE | Jun 21, 22:34 UTC | Jun 21, 23:50 UTC | 1h 15m |
| 2026-06-18 | N226NW | - | Jun 18, 21:30 UTC | Jun 18, 22:00 UTC | 30m |
| 2026-05-11 | N226NW | - | May 11, 21:05 UTC | May 11, 21:15 UTC | 10m |
| 2026-05-11 | N226NW | - | May 11, 19:20 UTC | May 11, 20:30 UTC | 1h 10m |
| 2026-05-11 | N226NW | - | May 11, 18:00 UTC | May 11, 18:25 UTC | 25m |
| 2026-05-08 | N226NW | - | May 8, 21:50 UTC | May 8, 22:45 UTC | 55m |
| 2026-05-08 | N226NW | - | May 8, 20:30 UTC | May 8, 21:05 UTC | 35m |
| 2026-05-08 | N226NW | - | May 8, 19:00 UTC | May 8, 19:20 UTC | 20m |
| 2026-05-08 | N226NW | - | May 8, 17:40 UTC | May 8, 18:25 UTC | 45m |
| 2026-05-08 | N226NW | - | May 8, 16:05 UTC | May 8, 16:35 UTC | 30m |
| 2026-05-08 | N226NW | - | May 8, 14:25 UTC | May 8, 15:25 UTC | 1h 0m |
| 2026-04-27 | N226NW | - | Apr 27, 20:10 UTC | Apr 27, 21:20 UTC | 1h 10m |
| 2026-04-27 | N226NW | - | Apr 27, 13:00 UTC | Apr 27, 14:40 UTC | 1h 40m |
| 2026-04-26 | N226NW | - | Apr 26, 15:50 UTC | Apr 26, 16:30 UTC | 40m |
| 2026-04-25 | N226NW | - | Apr 25, 15:40 UTC | Apr 25, 15:55 UTC | 15m |
| 2026-04-19 | N226NW | - | Apr 19, 20:15 UTC | Apr 19, 21:15 UTC | 1h 0m |
| 2026-04-19 | N226NW | - | Apr 19, 16:45 UTC | Apr 19, 19:20 UTC | 2h 35m |
| 2026-04-19 | N226NW | - | Apr 19, 12:40 UTC | Apr 19, 15:50 UTC | 3h 10m |
| 2026-04-19 | N226NW | - | Apr 19, 10:55 UTC | Apr 19, 12:00 UTC | 1h 5m |
| 2026-04-16 | N226NW | - | Apr 16, 13:15 UTC | Apr 16, 15:05 UTC | 1h 50m |
| 2026-04-16 | N226NW | - | Apr 16, 12:14 UTC | Apr 16, 13:05 UTC | 50m |
| 2026-04-14 | N226NW | - | Apr 14, 20:55 UTC | Apr 14, 21:55 UTC | 1h 0m |
| 2026-04-14 | N226NW | - | Apr 14, 19:45 UTC | Apr 14, 20:50 UTC | 1h 5m |
| 2026-04-14 | N226NW | - | Apr 14, 16:50 UTC | Apr 14, 17:10 UTC | 20m |
| 2026-04-14 | N226NW | - | Apr 14, 14:50 UTC | Apr 14, 16:45 UTC | 1h 55m |
| 2026-04-14 | N226NW | - | Apr 14, 12:55 UTC | Apr 14, 14:45 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 A226NW page for operator, model, and routing details .