sensors Mode-S transponder
A98423
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N712GT · operated by WILMINGTON TRUST CO TRUSTEE
- Hex
- A98423
- Octal
- 52302043
- Decimal
- 11,109,411
- Country
- US
- Tail
- N712GT
- Type
- B77L
- Flights observed
- 100
- Distinct callsigns
- 11
- Country
- US
- Last broadcast
- 8h ago
Last known position
Country allocation
The ICAO 24-bit address A98423 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 11 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| GTI8007 | Atlas Air | 24 | 2026-05-29 |
| GTI8508 | - | 22 | 2026-05-25 |
| GTI8008 | Atlas Air | 17 | 2026-05-26 |
| GTI606 | Atlas Air | 16 | 2026-05-28 |
| GTI8507 | - | 15 | 2026-05-24 |
| GTI9602 | Atlas Air | 1 | 2026-04-29 |
| GTI8002 | Atlas Air | 1 | 2026-04-25 |
| GTI8001 | Atlas Air | 1 | 2026-04-23 |
| GTI7601 | Atlas Air | 1 | 2026-04-28 |
| GTI2311 | Atlas Air | 1 | 2026-04-18 |
| GTI2004 | Atlas Air | 1 | 2026-04-19 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | GTI8007 | HHN → BIF | May 29, 07:55 UTC | May 29, 17:35 UTC | 9h 40m |
| 2026-05-28 | GTI8007 | HHN → BIF | May 28, 12:05 UTC | May 28, 20:00 UTC | 7h 55m |
| 2026-05-28 | GTI606 | LUX → HSV | May 28, 08:25 UTC | May 28, 09:20 UTC | 55m |
| 2026-05-27 | GTI606 | LUX → HSV | May 27, 20:20 UTC | May 28, 04:25 UTC | 8h 5m |
| 2026-05-26 | GTI8008 | PSM → HHN | May 26, 15:54 UTC | May 27, 10:35 UTC | 18h 40m |
| 2026-05-26 | GTI8008 | PSM → HHN | May 26, 12:54 UTC | May 27, 10:35 UTC | 21h 40m |
| 2026-05-26 | GTI8008 | PSM → HHN | May 26, 09:35 UTC | May 27, 08:45 UTC | 23h 11m |
| 2026-05-26 | GTI8007 | HHN → BIF | May 26, 05:54 UTC | May 27, 00:44 UTC | 18h 50m |
| 2026-05-25 | GTI8508 | - | May 25, 04:10 UTC | May 25, 13:25 UTC | 9h 15m |
| 2026-05-24 | GTI8508 | - | May 24, 23:05 UTC | May 24, 23:15 UTC | 10m |
| 2026-05-24 | GTI8507 | - | May 24, 01:20 UTC | May 24, 01:55 UTC | 35m |
| 2026-05-23 | GTI8507 | - | May 23, 14:15 UTC | May 23, 18:20 UTC | 4h 6m |
| 2026-05-23 | GTI8008 | PSM → HHN | May 23, 06:30 UTC | May 23, 10:55 UTC | 4h 25m |
| 2026-05-22 | GTI8008 | PSM → HHN | May 22, 08:50 UTC | May 23, 07:35 UTC | 22h 44m |
| 2026-05-22 | GTI8007 | HHN → BIF | May 22, 06:50 UTC | May 23, 06:45 UTC | 23h 54m |
| 2026-05-22 | GTI8007 | HHN → BIF | May 22, 06:35 UTC | May 22, 10:45 UTC | 4h 10m |
| 2026-05-21 | GTI8007 | HHN → BIF | May 21, 11:30 UTC | May 21, 19:15 UTC | 7h 45m |
| 2026-05-21 | GTI606 | LUX → HSV | May 21, 07:20 UTC | May 21, 08:10 UTC | 50m |
| 2026-05-20 | GTI606 | LUX → HSV | May 20, 18:30 UTC | May 21, 03:35 UTC | 9h 5m |
| 2026-05-20 | GTI8008 | PSM → HHN | May 20, 01:10 UTC | May 20, 10:55 UTC | 9h 46m |
| 2026-05-19 | GTI8007 | HHN → BIF | May 19, 05:45 UTC | May 19, 16:10 UTC | 10h 25m |
| 2026-05-17 | GTI8008 | PSM → HHN | May 17, 15:25 UTC | May 17, 19:40 UTC | 4h 15m |
| 2026-05-16 | GTI8008 | PSM → HHN | May 16, 18:50 UTC | May 17, 18:45 UTC | 23h 55m |
| 2026-05-16 | GTI8007 | HHN → BIF | May 16, 16:50 UTC | May 17, 16:30 UTC | 23h 40m |
| 2026-05-16 | GTI8007 | HHN → BIF | May 16, 15:01 UTC | May 16, 19:35 UTC | 4h 35m |
| 2026-05-16 | GTI8007 | HHN → BIF | May 16, 04:05 UTC | May 16, 12:11 UTC | 8h 6m |
| 2026-05-16 | GTI606 | LUX → HSV | May 16, 00:25 UTC | May 16, 01:15 UTC | 50m |
| 2026-05-15 | GTI606 | LUX → HSV | May 15, 12:10 UTC | May 15, 20:40 UTC | 8h 29m |
| 2026-05-15 | GTI8008 | PSM → HHN | May 15, 04:45 UTC | May 15, 09:15 UTC | 4h 30m |
| 2026-05-14 | GTI8008 | PSM → HHN | May 14, 11:05 UTC | May 15, 09:15 UTC | 22h 10m |
| 2026-05-14 | GTI8008 | PSM → HHN | May 14, 07:40 UTC | May 15, 06:45 UTC | 23h 5m |
| 2026-05-14 | GTI8007 | HHN → BIF | May 14, 04:50 UTC | May 15, 04:45 UTC | 23h 55m |
| 2026-05-14 | GTI8007 | HHN → BIF | May 14, 04:15 UTC | May 14, 11:15 UTC | 7h 0m |
| 2026-05-11 | GTI8508 | - | May 11, 09:45 UTC | May 11, 14:00 UTC | 4h 15m |
| 2026-05-10 | GTI8508 | - | May 10, 23:00 UTC | May 10, 23:15 UTC | 15m |
| 2026-05-09 | GTI8507 | - | May 9, 15:35 UTC | May 10, 03:04 UTC | 11h 30m |
| 2026-05-08 | GTI8008 | PSM → HHN | May 8, 17:35 UTC | May 9, 12:35 UTC | 19h 0m |
| 2026-05-08 | GTI8008 | PSM → HHN | May 8, 14:25 UTC | May 9, 12:35 UTC | 22h 10m |
| 2026-05-08 | GTI8008 | PSM → HHN | May 8, 11:30 UTC | May 9, 10:45 UTC | 23h 15m |
| 2026-05-08 | GTI8007 | HHN → BIF | May 8, 08:49 UTC | May 9, 08:45 UTC | 23h 55m |
| 2026-05-08 | GTI8007 | HHN → BIF | May 8, 07:44 UTC | May 8, 17:55 UTC | 10h 10m |
| 2026-05-07 | GTI8007 | HHN → BIF | May 7, 11:25 UTC | May 7, 19:10 UTC | 7h 45m |
| 2026-05-07 | GTI606 | LUX → HSV | May 7, 07:20 UTC | May 7, 08:30 UTC | 1h 10m |
| 2026-05-06 | GTI606 | LUX → HSV | May 6, 19:50 UTC | May 7, 04:40 UTC | 8h 50m |
| 2026-05-05 | GTI8008 | PSM → HHN | May 5, 17:05 UTC | May 6, 11:15 UTC | 18h 10m |
| 2026-05-05 | GTI8008 | PSM → HHN | May 5, 10:50 UTC | May 6, 10:45 UTC | 23h 55m |
| 2026-05-05 | GTI8007 | HHN → BIF | May 5, 08:50 UTC | May 6, 08:05 UTC | 23h 15m |
| 2026-05-05 | GTI8007 | HHN → BIF | May 5, 07:25 UTC | May 5, 17:15 UTC | 9h 50m |
| 2026-05-04 | GTI8508 | - | May 4, 09:40 UTC | May 4, 14:15 UTC | 4h 35m |
| 2026-05-03 | GTI8508 | - | May 3, 23:04 UTC | May 3, 23:20 UTC | 15m |
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 N712GT page for operator, model, and routing details .