sensors Mode-S transponder
C87F21
ICAO 24-bit transponder address
Currently assigned to NZ1401 · BEECHCRAFT T-6 Texan 2
- Hex
- C87F21
- Octal
- 62077441
- Decimal
- 13,139,745
- Tail
- NZ1401
- Type
- TEX2
- Flights observed
- 106
- Distinct callsigns
- 4
- Country
- -
- Last broadcast
- 16d ago
Last known position
Callsign history 4 distinct
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | TEX01 | - | Jul 26, 21:10 UTC | Jul 26, 22:15 UTC | 1h 5m |
| 2026-07-23 | TEX01 | - | Jul 23, 22:15 UTC | Jul 23, 23:45 UTC | 1h 30m |
| 2026-07-23 | TEX01 | - | Jul 23, 02:35 UTC | Jul 23, 04:05 UTC | 1h 30m |
| 2026-07-22 | TEX01 | - | Jul 22, 23:45 UTC | Jul 23, 01:05 UTC | 1h 20m |
| 2026-07-21 | TEX01 | - | Jul 21, 20:40 UTC | Jul 21, 22:00 UTC | 1h 20m |
| 2026-07-21 | TEX01 | - | Jul 21, 02:00 UTC | Jul 21, 03:15 UTC | 1h 15m |
| 2026-07-20 | TEX01 | - | Jul 20, 21:55 UTC | Jul 20, 23:20 UTC | 1h 25m |
| 2026-07-14 | TEX01 | - | Jul 14, 00:45 UTC | Jul 14, 01:40 UTC | 55m |
| 2026-07-12 | TEX01 | - | Jul 12, 21:10 UTC | Jul 12, 22:00 UTC | 50m |
| 2026-07-08 | TEXGLD | - | Jul 8, 00:05 UTC | Jul 8, 00:30 UTC | 25m |
| 2026-07-07 | TEX01 | - | Jul 7, 21:05 UTC | Jul 7, 21:55 UTC | 50m |
| 2026-07-07 | TEXGLD | - | Jul 7, 02:30 UTC | Jul 7, 03:05 UTC | 35m |
| 2026-07-06 | TEXGLD | - | Jul 6, 22:20 UTC | Jul 6, 23:10 UTC | 50m |
| 2026-07-06 | TEXGLD | - | Jul 6, 02:20 UTC | Jul 6, 02:30 UTC | 10m |
| 2026-07-05 | TEXGLD | - | Jul 5, 23:35 UTC | Jul 6, 00:05 UTC | 30m |
| 2026-07-03 | TEXGLD | - | Jul 3, 02:10 UTC | Jul 3, 02:40 UTC | 30m |
| 2026-07-02 | TEX01 | - | Jul 2, 23:50 UTC | Jul 3, 01:20 UTC | 1h 30m |
| 2026-07-02 | TEX01 | - | Jul 2, 21:05 UTC | Jul 2, 22:30 UTC | 1h 25m |
| 2026-07-02 | TEXSIL | - | Jul 2, 02:50 UTC | Jul 2, 03:10 UTC | 20m |
| 2026-07-01 | CDT01 | - | Jul 1, 23:30 UTC | Jul 2, 00:45 UTC | 1h 15m |
| 2026-07-01 | TEX01 | - | Jul 1, 20:45 UTC | Jul 1, 22:05 UTC | 1h 20m |
| 2026-06-30 | TEXSIL | - | Jun 30, 02:30 UTC | Jun 30, 02:45 UTC | 15m |
| 2026-06-29 | TEXSIL | - | Jun 29, 23:29 UTC | Jun 30, 00:35 UTC | 1h 5m |
| 2026-06-29 | TEXSIL | - | Jun 29, 20:44 UTC | Jun 29, 21:05 UTC | 20m |
| 2026-06-29 | TEXSIL | - | Jun 29, 02:14 UTC | Jun 29, 02:39 UTC | 25m |
| 2026-06-24 | TEX01 | - | Jun 24, 23:29 UTC | Jun 24, 23:50 UTC | 20m |
| 2026-06-23 | TEX01 | - | Jun 23, 20:59 UTC | Jun 23, 22:19 UTC | 1h 20m |
| 2026-06-23 | TEX01 | - | Jun 23, 02:24 UTC | Jun 23, 03:39 UTC | 1h 15m |
| 2026-06-22 | CDT01 | - | Jun 22, 23:29 UTC | Jun 23, 00:39 UTC | 1h 10m |
| 2026-06-22 | TEX01 | - | Jun 22, 20:39 UTC | Jun 22, 21:30 UTC | 50m |
| 2026-06-21 | TEX01 | - | Jun 21, 23:40 UTC | Jun 22, 01:00 UTC | 1h 20m |
| 2026-06-21 | TEXSIL | - | Jun 21, 20:50 UTC | Jun 21, 21:34 UTC | 45m |
| 2026-06-19 | TEX01 | - | Jun 19, 01:15 UTC | Jun 19, 02:14 UTC | 1h 0m |
| 2026-06-18 | TEX01 | - | Jun 18, 23:10 UTC | Jun 19, 00:10 UTC | 59m |
| 2026-06-18 | TEXGLD | - | Jun 18, 20:20 UTC | Jun 18, 21:05 UTC | 45m |
| 2026-06-18 | TEX01 | - | Jun 18, 02:00 UTC | Jun 18, 03:15 UTC | 1h 15m |
| 2026-06-17 | TEX01 | - | Jun 17, 21:45 UTC | Jun 17, 22:30 UTC | 45m |
| 2026-06-16 | TEX01 | - | Jun 16, 23:50 UTC | Jun 17, 01:05 UTC | 1h 15m |
| 2026-06-16 | TEX01 | - | Jun 16, 21:25 UTC | Jun 16, 21:55 UTC | 30m |
| 2026-06-16 | TEX01 | - | Jun 16, 02:34 UTC | Jun 16, 03:25 UTC | 50m |
| 2026-06-15 | TEX01 | - | Jun 15, 20:50 UTC | Jun 15, 21:04 UTC | 15m |
| 2026-06-15 | TEX01 | - | Jun 15, 02:24 UTC | Jun 15, 03:40 UTC | 1h 15m |
| 2026-06-15 | TEX01 | - | Jun 15, 00:29 UTC | Jun 15, 01:20 UTC | 50m |
| 2026-06-12 | CDT01 | - | Jun 12, 00:20 UTC | Jun 12, 01:25 UTC | 1h 5m |
| 2026-06-11 | CDT01 | - | Jun 11, 21:45 UTC | Jun 11, 22:50 UTC | 1h 5m |
| 2026-06-11 | TEX01 | - | Jun 11, 02:05 UTC | Jun 11, 03:45 UTC | 1h 40m |
| 2026-06-10 | TEX01 | - | Jun 10, 23:15 UTC | Jun 11, 00:45 UTC | 1h 30m |
| 2026-06-10 | TEX01 | - | Jun 10, 20:50 UTC | Jun 10, 21:30 UTC | 40m |
| 2026-06-10 | CDT01 | - | Jun 10, 02:10 UTC | Jun 10, 03:00 UTC | 50m |
| 2026-06-09 | CDT01 | - | Jun 9, 23:45 UTC | Jun 10, 00:50 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.
Prefer a tail-number view? See the NZ1401 page for operator, model, and routing details .