sensors Mode-S transponder
ADD228
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N99VC · operated by CAJUN CAPITAL HOLDINGS LLC
- Hex
- ADD228
- Octal
- 53351050
- Decimal
- 11,391,528
- Country
- US
- Tail
- N99VC
- Type
- GB1
- Flights observed
- 47
- Distinct callsigns
- 1
- Country
- US
- Last broadcast
- 15h ago
Last known position
Country allocation
The ICAO 24-bit address ADD228 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 |
|---|---|---|---|
| N99VC | - | 47 | 2026-07-17 |
Recent flights last 47
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-17 | N99VC | DBQ → AUW | Jul 17, 17:35 UTC | Jul 17, 18:29 UTC | 55m |
| 2026-07-16 | N99VC | - | Jul 16, 20:45 UTC | Jul 16, 22:55 UTC | 2h 10m |
| 2026-07-15 | N99VC | SPZ → SPZ | Jul 15, 12:30 UTC | Jul 15, 13:05 UTC | 35m |
| 2026-07-14 | N99VC | SPZ → SPZ | Jul 14, 22:40 UTC | Jul 14, 23:05 UTC | 24m |
| 2026-07-06 | N99VC | - | Jul 6, 23:00 UTC | Jul 6, 23:25 UTC | 25m |
| 2026-07-06 | N99VC | - | Jul 6, 18:30 UTC | Jul 6, 18:40 UTC | 10m |
| 2026-07-04 | N99VC | - | Jul 4, 00:10 UTC | Jul 4, 00:50 UTC | 40m |
| 2026-07-02 | N99VC | - | Jul 2, 22:20 UTC | Jul 2, 22:40 UTC | 20m |
| 2026-07-01 | N99VC | - | Jul 1, 22:55 UTC | Jul 1, 23:20 UTC | 25m |
| 2026-06-30 | N99VC | - | Jun 30, 12:50 UTC | Jun 30, 13:15 UTC | 25m |
| 2026-06-24 | N99VC | - | Jun 24, 12:34 UTC | Jun 24, 12:54 UTC | 20m |
| 2026-06-19 | N99VC | SPZ → SPZ | Jun 19, 15:54 UTC | Jun 19, 16:25 UTC | 30m |
| 2026-06-17 | N99VC | - | Jun 17, 12:40 UTC | Jun 17, 13:05 UTC | 25m |
| 2026-06-16 | N99VC | - | Jun 16, 22:10 UTC | Jun 16, 22:30 UTC | 20m |
| 2026-06-15 | N99VC | - | Jun 15, 18:20 UTC | Jun 15, 18:45 UTC | 25m |
| 2026-06-12 | N99VC | - | Jun 12, 22:00 UTC | Jun 12, 22:25 UTC | 25m |
| 2026-06-10 | N99VC | - | Jun 10, 12:40 UTC | Jun 10, 12:55 UTC | 15m |
| 2026-06-09 | N99VC | - | Jun 9, 12:50 UTC | Jun 9, 13:15 UTC | 25m |
| 2026-06-06 | N99VC | - | Jun 6, 18:04 UTC | Jun 6, 20:25 UTC | 2h 20m |
| 2026-06-06 | N99VC | - | Jun 6, 14:09 UTC | Jun 6, 14:30 UTC | 20m |
| 2026-06-05 | N99VC | - | Jun 5, 22:30 UTC | Jun 5, 22:50 UTC | 20m |
| 2026-06-05 | N99VC | - | Jun 5, 20:00 UTC | Jun 5, 20:20 UTC | 20m |
| 2026-06-05 | N99VC | - | Jun 5, 16:35 UTC | Jun 5, 16:55 UTC | 20m |
| 2026-06-05 | N99VC | - | Jun 5, 15:05 UTC | Jun 5, 16:00 UTC | 55m |
| 2026-06-03 | N99VC | - | Jun 3, 12:45 UTC | Jun 3, 13:05 UTC | 20m |
| 2026-06-02 | N99VC | SPZ → SPZ | Jun 2, 12:35 UTC | Jun 2, 12:55 UTC | 20m |
| 2026-05-31 | N99VC | - | May 31, 19:50 UTC | May 31, 20:25 UTC | 35m |
| 2026-05-30 | N99VC | - | May 30, 22:15 UTC | May 30, 22:25 UTC | 10m |
| 2026-05-30 | N99VC | - | May 30, 20:05 UTC | May 30, 20:50 UTC | 45m |
| 2026-05-30 | N99VC | - | May 30, 13:30 UTC | May 30, 15:20 UTC | 1h 50m |
| 2026-05-23 | N99VC | - | May 23, 13:55 UTC | May 23, 14:15 UTC | 20m |
| 2026-05-11 | N99VC | MLC → SPZ | May 11, 21:25 UTC | May 11, 22:05 UTC | 40m |
| 2026-05-11 | N99VC | MLC → MLC | May 11, 19:30 UTC | May 11, 20:10 UTC | 40m |
| 2026-05-11 | N99VC | MLC → MLC | May 11, 17:50 UTC | May 11, 18:35 UTC | 45m |
| 2026-05-11 | N99VC | - | May 11, 16:20 UTC | May 11, 16:55 UTC | 35m |
| 2026-05-08 | N99VC | - | May 8, 20:10 UTC | May 8, 20:25 UTC | 15m |
| 2026-05-08 | N99VC | - | May 8, 13:45 UTC | May 8, 14:00 UTC | 15m |
| 2026-05-07 | N99VC | - | May 7, 22:25 UTC | May 7, 22:50 UTC | 25m |
| 2026-04-24 | N99VC | - | Apr 24, 19:05 UTC | Apr 24, 19:20 UTC | 15m |
| 2026-04-20 | N99VC | - | Apr 20, 17:45 UTC | Apr 20, 18:05 UTC | 20m |
| 2026-04-19 | N99VC | - | Apr 19, 19:40 UTC | Apr 19, 20:25 UTC | 45m |
| 2026-04-18 | N99VC | - | Apr 18, 21:30 UTC | Apr 18, 22:55 UTC | 1h 25m |
| 2026-04-18 | N99VC | - | Apr 18, 20:15 UTC | Apr 18, 20:25 UTC | 10m |
| 2026-04-18 | N99VC | - | Apr 18, 12:35 UTC | Apr 18, 13:50 UTC | 1h 15m |
| 2026-04-13 | N99VC | - | Apr 13, 20:55 UTC | Apr 13, 21:05 UTC | 10m |
| 2026-04-13 | N99VC | - | Apr 13, 19:10 UTC | Apr 13, 19:20 UTC | 10m |
| 2026-04-12 | N99VC | - | Apr 12, 18:10 UTC | Apr 12, 20:15 UTC | 2h 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 N99VC page for operator, model, and routing details .