sensors Mode-S transponder
A693D7
ICAO 24-bit transponder address · allocated to United States
- Hex
- A693D7
- Octal
- 51511727
- Decimal
- 10,916,823
- Country
- US
- Flights observed
- 33
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- 24d ago
Last known position
Country allocation
The ICAO 24-bit address A693D7 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 |
|---|---|---|---|
| N5228L | - | 33 | 2026-07-18 |
Recent flights last 33
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-18 | N5228L | - | Jul 18, 22:20 UTC | Jul 18, 23:00 UTC | 40m |
| 2026-07-18 | N5228L | - | Jul 18, 20:05 UTC | Jul 18, 20:45 UTC | 40m |
| 2026-07-18 | N5228L | IWS → IWS | Jul 18, 00:50 UTC | Jul 18, 01:15 UTC | 25m |
| 2026-07-05 | N5228L | CLL → IWS | Jul 5, 18:30 UTC | Jul 5, 19:15 UTC | 45m |
| 2026-07-05 | N5228L | - | Jul 5, 16:20 UTC | Jul 5, 17:00 UTC | 40m |
| 2026-07-03 | N5228L | - | Jul 3, 17:05 UTC | Jul 3, 17:20 UTC | 15m |
| 2026-06-27 | N5228L | - | Jun 27, 23:39 UTC | Jun 28, 00:15 UTC | 35m |
| 2026-06-27 | N5228L | - | Jun 27, 21:40 UTC | Jun 27, 22:04 UTC | 25m |
| 2026-06-26 | N5228L | - | Jun 26, 00:05 UTC | Jun 26, 00:55 UTC | 50m |
| 2026-06-25 | N5228L | - | Jun 25, 22:29 UTC | Jun 25, 23:19 UTC | 50m |
| 2026-06-24 | N5228L | - | Jun 24, 00:55 UTC | Jun 24, 01:39 UTC | 45m |
| 2026-06-23 | N5228L | - | Jun 23, 23:05 UTC | Jun 23, 23:59 UTC | 55m |
| 2026-06-19 | N5228L | - | Jun 19, 00:10 UTC | Jun 19, 00:34 UTC | 25m |
| 2026-06-13 | N5228L | - | Jun 13, 23:50 UTC | Jun 14, 00:30 UTC | 40m |
| 2026-06-13 | N5228L | - | Jun 13, 21:55 UTC | Jun 13, 22:25 UTC | 30m |
| 2026-06-12 | N5228L | - | Jun 12, 00:40 UTC | Jun 12, 00:55 UTC | 15m |
| 2026-06-10 | N5228L | - | Jun 10, 23:30 UTC | Jun 11, 00:05 UTC | 35m |
| 2026-06-07 | N5228L | - | Jun 7, 21:55 UTC | Jun 7, 23:25 UTC | 1h 30m |
| 2026-06-07 | N5228L | - | Jun 7, 20:00 UTC | Jun 7, 21:00 UTC | 1h 0m |
| 2026-06-05 | N5228L | - | Jun 5, 00:30 UTC | Jun 5, 01:40 UTC | 1h 10m |
| 2026-06-04 | N5228L | - | Jun 4, 22:30 UTC | Jun 4, 23:40 UTC | 1h 10m |
| 2026-06-02 | N5228L | - | Jun 2, 00:40 UTC | Jun 2, 02:15 UTC | 1h 35m |
| 2026-06-01 | N5228L | - | Jun 1, 22:45 UTC | Jun 1, 23:50 UTC | 1h 5m |
| 2026-05-29 | N5228L | - | May 29, 00:15 UTC | May 29, 01:40 UTC | 1h 25m |
| 2026-05-28 | N5228L | - | May 28, 23:05 UTC | May 28, 23:30 UTC | 25m |
| 2026-05-26 | N5228L | - | May 26, 22:44 UTC | May 27, 00:49 UTC | 2h 5m |
| 2026-05-20 | N5228L | - | May 20, 01:55 UTC | May 20, 02:25 UTC | 30m |
| 2026-05-19 | N5228L | - | May 19, 23:05 UTC | May 19, 23:55 UTC | 50m |
| 2026-05-08 | N5228L | - | May 8, 01:35 UTC | May 8, 02:04 UTC | 30m |
| 2026-05-07 | N5228L | - | May 7, 23:49 UTC | May 8, 00:25 UTC | 35m |
| 2026-04-24 | N5228L | - | Apr 24, 23:25 UTC | Apr 24, 23:50 UTC | 25m |
| 2026-04-24 | N5228L | - | Apr 24, 21:15 UTC | Apr 24, 22:10 UTC | 55m |
| 2026-04-24 | N5228L | - | Apr 24, 00:00 UTC | Apr 24, 01:05 UTC | 1h 5m |
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.