sensors Mode-S transponder
A1DE8D
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N2199J · AIRBUS A-321neo · operated by JETBLUE AIRWAYS CORP
- Hex
- A1DE8D
- Octal
- 50357215
- Decimal
- 10,608,269
- Country
- US
- Tail
- N2199J
- Type
- A21N
- Flights observed
- 265
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address A1DE8D 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 |
|---|---|---|---|
| JBU353 | - | 18 | 2026-06-29 |
| JBU354 | - | 15 | 2026-06-29 |
| JBU1080 | - | 13 | 2026-07-11 |
| JBU1926 | - | 12 | 2026-07-14 |
| JBU73 | - | 11 | 2026-07-11 |
| JBU2233 | JetBlue Airways | 9 | 2026-04-14 |
| JBU2104 | - | 8 | 2026-07-14 |
| JBU616 | JetBlue Airways | 7 | 2026-05-09 |
| JBU411 | JetBlue Airways | 7 | 2026-06-07 |
| JBU1079 | - | 7 | 2026-07-08 |
| JBU487 | JetBlue Airways | 6 | 2026-06-08 |
| JBU72 | - | 5 | 2026-07-08 |
| JBU323 | - | 5 | 2026-07-03 |
| JBU223 | - | 5 | 2026-07-04 |
| JBU2120 | - | 5 | 2026-07-12 |
| JBU1633 | JetBlue Airways | 5 | 2026-05-19 |
| JBU1524 | - | 5 | 2026-07-03 |
| JBU1515 | JetBlue Airways | 5 | 2026-04-30 |
| JBU734 | JetBlue Airways | 4 | 2026-06-01 |
| JBU623 | JetBlue Airways | 4 | 2026-04-15 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | JBU1926 | LGW → BOS | Jul 14, 12:15 UTC | Jul 14, 13:35 UTC | 1h 21m |
| 2026-07-14 | JBU1926 | - | Jul 14, 12:15 UTC | Jul 14, 13:15 UTC | 1h 0m |
| 2026-07-14 | JBU2104 | - | Jul 14, 02:35 UTC | Jul 14, 09:10 UTC | 6h 35m |
| 2026-07-13 | JBU1926 | LGW → BOS | Jul 13, 12:54 UTC | Jul 14, 11:15 UTC | 22h 22m |
| 2026-07-13 | JBU2104 | BOS → LGW | Jul 13, 03:11 UTC | Jul 14, 01:15 UTC | 22h 5m |
| 2026-07-13 | JBU2104 | BOS → LGW | Jul 13, 03:15 UTC | Jul 13, 09:45 UTC | 6h 30m |
| 2026-07-12 | JBU620 | - | Jul 12, 17:35 UTC | Jul 12, 23:00 UTC | 5h 25m |
| 2026-07-12 | JBU619 | - | Jul 12, 10:35 UTC | Jul 12, 15:40 UTC | 5h 5m |
| 2026-07-12 | JBU2120 | - | Jul 12, 03:45 UTC | Jul 12, 08:55 UTC | 5h 10m |
| 2026-07-11 | JBU1080 | EDI → BOS | Jul 11, 10:59 UTC | Jul 12, 09:10 UTC | 22h 12m |
| 2026-07-11 | JBU73 | JFK → EDI | Jul 11, 01:35 UTC | Jul 11, 23:15 UTC | 21h 41m |
| 2026-07-10 | JBU1024 | - | Jul 10, 06:55 UTC | Jul 10, 11:45 UTC | 4h 50m |
| 2026-07-09 | JBU1387 | - | Jul 9, 23:20 UTC | Jul 10, 05:00 UTC | 5h 40m |
| 2026-07-09 | JBU73 | JFK → EDI | Jul 9, 02:02 UTC | Jul 10, 01:15 UTC | 23h 14m |
| 2026-07-08 | JBU72 | EDI → JFK | Jul 8, 13:23 UTC | Jul 9, 11:40 UTC | 22h 18m |
| 2026-07-08 | JBU1079 | BOS → EDI | Jul 8, 05:19 UTC | Jul 9, 03:40 UTC | 22h 22m |
| 2026-07-07 | JBU219 | BOS → SAN | Jul 7, 13:41 UTC | Jul 8, 13:15 UTC | 23h 34m |
| 2026-07-07 | JBU219 | - | Jul 7, 13:45 UTC | Jul 7, 19:05 UTC | 5h 20m |
| 2026-07-07 | JBU488 | - | Jul 7, 05:20 UTC | Jul 7, 10:25 UTC | 5h 5m |
| 2026-07-06 | JBU1080 | EDI → BOS | Jul 6, 11:19 UTC | Jul 7, 10:50 UTC | 23h 32m |
| 2026-07-06 | JBU73 | - | Jul 6, 03:20 UTC | Jul 6, 09:25 UTC | 6h 5m |
| 2026-07-05 | JBU1548 | LAS → JFK | Jul 5, 17:40 UTC | Jul 5, 22:30 UTC | 4h 50m |
| 2026-07-04 | JBU224 | LAX → JFK | Jul 4, 23:20 UTC | Jul 5, 23:00 UTC | 23h 41m |
| 2026-07-04 | JBU223 | JFK → LAX | Jul 4, 12:38 UTC | Jul 5, 11:15 UTC | 22h 37m |
| 2026-07-04 | JBU223 | - | Jul 4, 12:40 UTC | Jul 4, 18:05 UTC | 5h 25m |
| 2026-07-04 | JBU224 | - | Jul 4, 03:45 UTC | Jul 4, 04:30 UTC | 45m |
| 2026-07-03 | JBU224 | - | Jul 3, 20:05 UTC | Jul 4, 01:15 UTC | 5h 10m |
| 2026-07-03 | JBU323 | - | Jul 3, 13:25 UTC | Jul 3, 18:35 UTC | 5h 10m |
| 2026-07-03 | JBU1524 | - | Jul 3, 04:25 UTC | Jul 3, 09:20 UTC | 4h 55m |
| 2026-07-02 | JBU72 | - | Jul 2, 11:45 UTC | Jul 2, 12:25 UTC | 40m |
| 2026-07-02 | JBU72 | EDI → JFK | Jul 2, 11:45 UTC | Jul 3, 09:25 UTC | 21h 40m |
| 2026-07-02 | JBU1079 | - | Jul 2, 02:50 UTC | Jul 2, 08:35 UTC | 5h 45m |
| 2026-07-02 | JBU1079 | BOS → BOS | Jul 2, 02:05 UTC | Jul 2, 02:10 UTC | 5m |
| 2026-07-01 | JBU1926 | LGW → BOS | Jul 1, 11:40 UTC | Jul 1, 19:05 UTC | 7h 25m |
| 2026-07-01 | JBU2104 | BOS → LGW | Jul 1, 02:30 UTC | Jul 1, 08:30 UTC | 6h 0m |
| 2026-06-30 | JBU1080 | EDI → BOS | Jun 30, 10:42 UTC | Jul 1, 08:40 UTC | 21h 59m |
| 2026-06-30 | JBU1080 | - | Jun 30, 10:45 UTC | Jun 30, 11:10 UTC | 25m |
| 2026-06-30 | JBU1079 | BOS → EDI | Jun 30, 02:45 UTC | Jun 30, 08:35 UTC | 5h 50m |
| 2026-06-29 | JBU354 | DUB → BOS | Jun 29, 09:52 UTC | Jun 30, 08:40 UTC | 22h 49m |
| 2026-06-29 | JBU354 | DUB → BOS | Jun 29, 09:52 UTC | Jun 30, 08:40 UTC | 22h 49m |
| 2026-06-29 | JBU353 | - | Jun 29, 01:14 UTC | Jun 29, 06:50 UTC | 5h 35m |
| 2026-06-29 | JBU353 | BOS → DUB | Jun 29, 01:12 UTC | Jun 29, 16:29 UTC | 15h 18m |
| 2026-06-28 | JBU620 | - | Jun 28, 17:44 UTC | Jun 28, 22:55 UTC | 5h 10m |
| 2026-06-28 | JBU619 | BOS → SAN | Jun 28, 10:15 UTC | Jun 28, 15:55 UTC | 5h 40m |
| 2026-06-28 | JBU474 | - | Jun 28, 00:20 UTC | Jun 28, 00:59 UTC | 40m |
| 2026-06-27 | JBU474 | - | Jun 27, 20:44 UTC | Jun 27, 20:55 UTC | 10m |
| 2026-06-27 | JBU474 | AUA → BOS | Jun 27, 20:41 UTC | Jun 28, 19:14 UTC | 22h 34m |
| 2026-06-27 | JBU373 | BOS → AUA | Jun 27, 14:35 UTC | Jun 27, 18:45 UTC | 4h 10m |
| 2026-06-26 | JBU733 | BOS → SFO | Jun 26, 22:13 UTC | Jun 27, 20:55 UTC | 22h 42m |
| 2026-06-26 | JBU1926 | LGW → BOS | Jun 26, 12:03 UTC | Jun 27, 11:00 UTC | 22h 57m |
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 N2199J page for operator, model, and routing details .