sensors Mode-S transponder
A19D0D
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N2029J · AIRBUS A-321neo · operated by JETBLUE AIRWAYS CORP
- Hex
- A19D0D
- Octal
- 50316415
- Decimal
- 10,591,501
- Country
- US
- Tail
- N2029J
- Type
- A21N
- Flights observed
- 120
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 46m ago
Last known position
Country allocation
The ICAO 24-bit address A19D0D 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 |
|---|---|---|---|
| JBU939 | JetBlue Airways | 12 | 2026-05-26 |
| JBU1329 | JetBlue Airways | 8 | 2026-05-20 |
| JBU1328 | JetBlue Airways | 7 | 2026-05-19 |
| JBU938 | JetBlue Airways | 5 | 2026-05-10 |
| JBU881 | JetBlue Airways | 5 | 2026-04-27 |
| JBU528 | JetBlue Airways | 5 | 2026-05-18 |
| JBU1383 | JetBlue Airways | 5 | 2026-05-19 |
| JBU1188 | JetBlue Airways | 5 | 2026-05-24 |
| JBU2210 | JetBlue Airways | 4 | 2026-04-21 |
| JBU610 | JetBlue Airways | 3 | 2026-05-08 |
| JBU569 | JetBlue Airways | 3 | 2026-05-18 |
| JBU470 | JetBlue Airways | 3 | 2026-05-18 |
| JBU2709 | JetBlue Airways | 3 | 2026-05-05 |
| JBU1817 | JetBlue Airways | 3 | 2026-04-17 |
| JBU1255 | JetBlue Airways | 3 | 2026-05-16 |
| JBU989 | JetBlue Airways | 2 | 2026-05-29 |
| JBU882 | JetBlue Airways | 2 | 2026-04-23 |
| JBU58 | JetBlue Airways | 2 | 2026-05-28 |
| JBU57 | JetBlue Airways | 2 | 2026-05-28 |
| JBU509 | - | 2 | 2026-04-21 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | JBU989 | JFK → PUJ | May 29, 11:20 UTC | May 29, 11:55 UTC | 35m |
| 2026-05-29 | JBU989 | JFK → PUJ | May 29, 11:19 UTC | May 30, 05:15 UTC | 17h 57m |
| 2026-05-28 | JBU58 | MCO → JFK | May 28, 21:30 UTC | May 29, 01:00 UTC | 3h 30m |
| 2026-05-28 | JBU58 | MCO → JFK | May 28, 20:35 UTC | May 28, 20:50 UTC | 15m |
| 2026-05-28 | JBU57 | JFK → AUA | May 28, 18:15 UTC | May 28, 18:30 UTC | 15m |
| 2026-05-28 | JBU57 | JFK → AUA | May 28, 14:30 UTC | May 28, 17:35 UTC | 3h 5m |
| 2026-05-28 | JBU264 | SEA → JFK | May 28, 07:20 UTC | May 28, 12:15 UTC | 4h 55m |
| 2026-05-27 | JBU263 | JFK → SEA | May 27, 21:35 UTC | May 28, 03:05 UTC | 5h 30m |
| 2026-05-27 | JBU1179 | JFK → MBJ | May 27, 10:55 UTC | May 27, 18:55 UTC | 8h 0m |
| 2026-05-26 | JBU939 | JFK → SJD | May 26, 13:29 UTC | May 27, 01:19 UTC | 11h 50m |
| 2026-05-25 | JBU2102 | FLL → JFK | May 25, 17:05 UTC | May 25, 19:30 UTC | 2h 24m |
| 2026-05-25 | JBU2102 | FLL → JFK | May 25, 17:03 UTC | May 26, 15:14 UTC | 22h 12m |
| 2026-05-25 | JBU1 | JFK → FLL | May 25, 12:05 UTC | May 25, 14:30 UTC | 2h 25m |
| 2026-05-24 | JBU1188 | SXM → JFK | May 24, 23:00 UTC | May 24, 23:20 UTC | 20m |
| 2026-05-24 | JBU1188 | SXM → JFK | May 24, 20:00 UTC | May 24, 20:15 UTC | 15m |
| 2026-05-24 | JBU887 | LGA → BNA | May 24, 14:20 UTC | May 24, 17:30 UTC | 3h 10m |
| 2026-05-23 | JBU466 | RSW → BOS | May 23, 13:10 UTC | May 24, 00:55 UTC | 11h 46m |
| 2026-05-22 | JBU117 | BOS → ATL | May 22, 13:30 UTC | May 23, 00:50 UTC | 11h 20m |
| 2026-05-21 | JBU361 | JFK → BGI | May 21, 12:35 UTC | May 21, 22:50 UTC | 10h 15m |
| 2026-05-20 | JBU1329 | GUA → JFK | May 20, 20:35 UTC | May 21, 01:30 UTC | 4h 55m |
| 2026-05-20 | JBU1329 | GUA → JFK | May 20, 20:31 UTC | May 21, 19:15 UTC | 22h 45m |
| 2026-05-20 | JBU1329 | GUA → JFK | May 20, 15:55 UTC | May 20, 18:10 UTC | 2h 15m |
| 2026-05-19 | JBU1383 | PWM → LGA | May 19, 18:50 UTC | May 19, 21:05 UTC | 2h 15m |
| 2026-05-19 | JBU1383 | PWM → LGA | May 19, 18:46 UTC | May 20, 17:15 UTC | 22h 30m |
| 2026-05-19 | JBU1328 | JFK → GUA | May 19, 12:05 UTC | May 19, 16:15 UTC | 4h 10m |
| 2026-05-18 | JBU528 | MCO → EWR | May 18, 15:40 UTC | May 19, 03:25 UTC | 11h 44m |
| 2026-05-18 | JBU569 | BOS → FLL | May 18, 10:25 UTC | May 18, 13:10 UTC | 2h 45m |
| 2026-05-18 | JBU470 | FLL → BOS | May 18, 01:15 UTC | May 18, 04:05 UTC | 2h 50m |
| 2026-05-17 | JBU1383 | PWM → LGA | May 17, 18:20 UTC | May 17, 20:45 UTC | 2h 25m |
| 2026-05-16 | JBU528 | MCO → EWR | May 16, 21:50 UTC | May 17, 20:45 UTC | 22h 56m |
| 2026-05-16 | JBU528 | MCO → EWR | May 16, 21:50 UTC | May 17, 20:45 UTC | 22h 56m |
| 2026-05-16 | JBU1255 | FLL → GYE | May 16, 15:20 UTC | May 16, 15:50 UTC | 30m |
| 2026-05-16 | JBU1255 | FLL → GYE | May 16, 15:20 UTC | May 17, 15:15 UTC | 23h 56m |
| 2026-05-16 | JBU569 | BOS → FLL | May 16, 10:20 UTC | May 16, 13:05 UTC | 2h 45m |
| 2026-05-16 | JBU470 | FLL → BOS | May 16, 01:30 UTC | May 16, 04:15 UTC | 2h 45m |
| 2026-05-15 | JBU383B | GUA → FLL | May 15, 19:00 UTC | May 15, 21:15 UTC | 2h 15m |
| 2026-05-15 | JBU1328 | JFK → GUA | May 15, 12:05 UTC | May 15, 16:10 UTC | 4h 4m |
| 2026-05-14 | JBU939 | JFK → SJD | May 14, 13:20 UTC | May 15, 01:35 UTC | 12h 15m |
| 2026-05-13 | JBU939 | JFK → SJD | May 13, 13:31 UTC | May 14, 01:55 UTC | 12h 25m |
| 2026-05-12 | JBU939 | JFK → SJD | May 12, 13:15 UTC | May 13, 01:40 UTC | 12h 25m |
| 2026-05-10 | JBU938 | SJD → JFK | May 10, 20:48 UTC | May 11, 01:25 UTC | 4h 37m |
| 2026-05-10 | JBU939 | JFK → SJD | May 10, 13:25 UTC | May 10, 23:15 UTC | 9h 50m |
| 2026-05-09 | JBU938 | SJD → JFK | May 9, 20:39 UTC | May 10, 18:05 UTC | 21h 26m |
| 2026-05-09 | JBU939 | JFK → SJD | May 9, 13:20 UTC | May 9, 17:40 UTC | 4h 20m |
| 2026-05-09 | JBU939 | JFK → SJD | May 9, 13:16 UTC | May 10, 01:45 UTC | 12h 29m |
| 2026-05-08 | JBU610 | DFW → JFK | May 8, 11:05 UTC | May 9, 01:45 UTC | 14h 40m |
| 2026-05-08 | JBU610 | DFW → JFK | May 8, 02:59 UTC | May 8, 14:40 UTC | 11h 40m |
| 2026-05-07 | JBU1329 | GUA → JFK | May 7, 20:15 UTC | May 8, 00:34 UTC | 4h 20m |
| 2026-05-07 | JBU1380 | FLL → GUA | May 7, 16:05 UTC | May 7, 18:20 UTC | 2h 15m |
| 2026-05-06 | JBU1383 | PWM → LGA | May 6, 18:30 UTC | May 6, 20:50 UTC | 2h 20m |
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 N2029J page for operator, model, and routing details .