sensors Mode-S transponder
AD8FA4
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N973JT · AIRBUS A-321 · operated by JETBLUE AIRWAYS CORP
- Hex
- AD8FA4
- Octal
- 53307644
- Decimal
- 11,374,500
- Country
- US
- Tail
- N973JT
- Type
- A321
- Flights observed
- 101
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address AD8FA4 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| JBU909 | JetBlue Airways | 5 | 2026-04-25 |
| JBU509 | JetBlue Airways | 5 | 2026-05-18 |
| JBU2210 | JetBlue Airways | 5 | 2026-05-20 |
| JBU22 | JetBlue Airways | 4 | 2026-05-29 |
| JBU910 | JetBlue Airways | 3 | 2026-04-25 |
| JBU91 | JetBlue Airways | 3 | 2026-04-15 |
| JBU769 | - | 3 | 2026-04-14 |
| JBU761 | JetBlue Airways | 3 | 2026-05-30 |
| JBU470 | JetBlue Airways | 3 | 2026-04-18 |
| JBU269 | JetBlue Airways | 3 | 2026-04-17 |
| JBU2661 | JetBlue Airways | 3 | 2026-04-13 |
| JBU162 | JetBlue Airways | 3 | 2026-04-21 |
| JBU1434 | JetBlue Airways | 3 | 2026-05-28 |
| JBU8616 | JetBlue Airways | 2 | 2026-05-13 |
| JBU721 | JetBlue Airways | 2 | 2026-04-16 |
| JBU592 | - | 2 | 2026-04-15 |
| JBU551 | JetBlue Airways | 2 | 2026-04-26 |
| JBU352 | JetBlue Airways | 2 | 2026-04-23 |
| JBU2903 | JetBlue Airways | 2 | 2026-05-26 |
| JBU2851 | JetBlue Airways | 2 | 2026-05-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | JBU761 | LGA → PBI | May 30, 00:55 UTC | May 30, 01:20 UTC | 25m |
| 2026-05-29 | JBU761 | LGA → PBI | May 29, 22:00 UTC | May 29, 23:35 UTC | 1h 35m |
| 2026-05-29 | JBU761 | LGA → PBI | May 29, 21:56 UTC | May 30, 01:20 UTC | 3h 25m |
| 2026-05-29 | JBU22 | MBJ → MCO | May 29, 17:15 UTC | May 29, 19:55 UTC | 2h 40m |
| 2026-05-29 | JBU21 | MCO → MBJ | May 29, 13:00 UTC | May 29, 15:45 UTC | 2h 45m |
| 2026-05-28 | JBU1434 | SJU → MCO | May 28, 10:50 UTC | May 28, 11:40 UTC | 50m |
| 2026-05-28 | JBU1434 | SJU → MCO | May 28, 09:10 UTC | May 28, 09:20 UTC | 10m |
| 2026-05-28 | JBU1434 | SJU → MCO | May 28, 09:04 UTC | May 29, 03:00 UTC | 17h 56m |
| 2026-05-27 | JBU2851 | FLL → UIO | May 27, 22:25 UTC | May 27, 22:35 UTC | 10m |
| 2026-05-27 | JBU2851 | FLL → UIO | May 27, 19:50 UTC | May 27, 20:50 UTC | 1h 0m |
| 2026-05-27 | JBU791 | BOS → TPA | May 27, 15:20 UTC | May 27, 18:15 UTC | 2h 55m |
| 2026-05-27 | JBU1192 | TPA → BOS | May 27, 11:05 UTC | May 27, 13:40 UTC | 2h 35m |
| 2026-05-26 | JBU452 | MCO → BOS | May 26, 11:54 UTC | May 26, 14:35 UTC | 2h 40m |
| 2026-05-26 | JBU2903 | JFK → SJU | May 26, 02:29 UTC | May 26, 02:49 UTC | 20m |
| 2026-05-25 | JBU2903 | JFK → SJU | May 25, 23:35 UTC | May 26, 00:09 UTC | 35m |
| 2026-05-25 | JBU1008 | JFK → BOS | May 25, 11:20 UTC | May 25, 19:59 UTC | 8h 39m |
| 2026-05-24 | JBU58 | MCO → JFK | May 24, 20:25 UTC | May 24, 20:40 UTC | 15m |
| 2026-05-24 | JBU57 | JFK → AUA | May 24, 14:25 UTC | May 24, 18:25 UTC | 4h 0m |
| 2026-05-23 | JBU263 | JFK → SEA | May 23, 22:08 UTC | May 24, 20:40 UTC | 22h 32m |
| 2026-05-23 | JBU263 | JFK → SEA | May 23, 22:10 UTC | May 24, 03:35 UTC | 5h 25m |
| 2026-05-23 | JBU869 | JFK → DEN | May 23, 10:10 UTC | May 23, 18:40 UTC | 8h 30m |
| 2026-05-23 | JBU2184 | RDU → BOS | May 23, 01:30 UTC | May 23, 03:35 UTC | 2h 5m |
| 2026-05-22 | JBU483 | EWR → SFO | May 22, 21:15 UTC | May 22, 23:20 UTC | 2h 5m |
| 2026-05-22 | JBU710 | JAX → BOS | May 22, 10:15 UTC | May 22, 18:45 UTC | 8h 30m |
| 2026-05-21 | JBU268 | PUJ → JFK | May 21, 15:20 UTC | May 22, 10:55 UTC | 19h 35m |
| 2026-05-20 | JBU2210 | JAX → BOS | May 20, 19:46 UTC | May 21, 18:50 UTC | 23h 5m |
| 2026-05-20 | JBU264 | SEA → JFK | May 20, 07:04 UTC | May 21, 04:10 UTC | 21h 7m |
| 2026-05-20 | JBU264 | SEA → JFK | May 20, 07:05 UTC | May 20, 11:50 UTC | 4h 45m |
| 2026-05-19 | JBU151 | JFK → TPA | May 19, 10:09 UTC | May 20, 09:00 UTC | 22h 52m |
| 2026-05-18 | JBU2210 | JAX → BOS | May 18, 20:08 UTC | May 19, 19:00 UTC | 22h 52m |
| 2026-05-18 | JBU509 | BOS → SEA | May 18, 14:55 UTC | May 18, 15:55 UTC | 1h 0m |
| 2026-05-18 | JBU509 | BOS → SEA | May 18, 14:53 UTC | May 19, 13:00 UTC | 22h 7m |
| 2026-05-17 | JBU509 | BOS → SEA | May 17, 15:10 UTC | May 18, 15:00 UTC | 23h 51m |
| 2026-05-16 | JBU2210 | JAX → BOS | May 16, 20:20 UTC | May 17, 15:45 UTC | 19h 26m |
| 2026-05-16 | JBU2210 | JAX → BOS | May 16, 14:35 UTC | May 17, 00:10 UTC | 9h 35m |
| 2026-05-15 | JBU1584 | MCO → JFK | May 15, 15:07 UTC | May 16, 15:01 UTC | 23h 54m |
| 2026-05-14 | JBU2210 | JAX → BOS | May 14, 20:51 UTC | May 15, 17:20 UTC | 20h 29m |
| 2026-05-14 | JBU509 | BOS → SEA | May 14, 15:15 UTC | May 15, 15:00 UTC | 23h 45m |
| 2026-05-14 | JBU509 | BOS → SEA | May 14, 15:15 UTC | May 14, 17:25 UTC | 2h 10m |
| 2026-05-13 | JBU8616 | SAL → BOS | May 13, 16:40 UTC | May 13, 21:00 UTC | 4h 20m |
| 2026-05-13 | JBU8616 | SAL → BOS | May 13, 16:27 UTC | May 14, 15:01 UTC | 22h 34m |
| 2026-05-01 | JBU8452 | BDL → BOS | May 1, 18:35 UTC | May 1, 23:05 UTC | 4h 30m |
| 2026-04-28 | JBU2151 | BOS → MCO | Apr 28, 15:50 UTC | Apr 28, 23:20 UTC | 7h 30m |
| 2026-04-27 | JBU274 | AUA → BOS | Apr 27, 20:24 UTC | Apr 28, 18:40 UTC | 22h 16m |
| 2026-04-27 | JBU1323 | BOS → PBI | Apr 27, 03:06 UTC | Apr 28, 01:05 UTC | 21h 59m |
| 2026-04-26 | JBU652 | RDU → BOS | Apr 26, 21:56 UTC | Apr 27, 20:40 UTC | 22h 44m |
| 2026-04-26 | JBU551 | BOS → MCO | Apr 26, 17:38 UTC | Apr 27, 15:15 UTC | 21h 38m |
| 2026-04-26 | JBU551 | BOS → MCO | Apr 26, 17:40 UTC | Apr 26, 20:20 UTC | 2h 40m |
| 2026-04-26 | JBU870 | KIN → JFK | Apr 26, 10:35 UTC | Apr 26, 13:30 UTC | 2h 55m |
| 2026-04-25 | JBU910 | NAS → BOS | Apr 25, 15:35 UTC | Apr 26, 13:35 UTC | 22h 0m |
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 N973JT page for operator, model, and routing details .