sensors Mode-S transponder
A1BC29
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N2102J · AIRBUS A-321neo · operated by JETBLUE AIRWAYS CORP
- Hex
- A1BC29
- Octal
- 50336051
- Decimal
- 10,599,465
- Country
- US
- Tail
- N2102J
- Type
- A21N
- Flights observed
- 101
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address A1BC29 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 |
|---|---|---|---|
| JBU965 | JetBlue Airways | 14 | 2026-05-15 |
| JBU966 | JetBlue Airways | 13 | 2026-05-12 |
| JBU882 | JetBlue Airways | 9 | 2026-05-03 |
| JBU881 | JetBlue Airways | 7 | 2026-05-03 |
| JBU939 | JetBlue Airways | 6 | 2026-05-01 |
| JBU505 | JetBlue Airways | 6 | 2026-05-20 |
| JBU509 | JetBlue Airways | 4 | 2026-05-08 |
| JBU1929 | JetBlue Airways | 4 | 2026-05-27 |
| JBU1255 | JetBlue Airways | 4 | 2026-05-19 |
| JBU610 | JetBlue Airways | 3 | 2026-05-10 |
| JBU528 | JetBlue Airways | 3 | 2026-05-19 |
| JBU1256 | JetBlue Airways | 3 | 2026-05-16 |
| JBU787 | JetBlue Airways | 2 | 2026-05-23 |
| JBU597 | JetBlue Airways | 2 | 2026-05-19 |
| JBU465 | JetBlue Airways | 2 | 2026-05-29 |
| JBU2210 | JetBlue Airways | 2 | 2026-05-10 |
| JBU1817 | JetBlue Airways | 2 | 2026-04-19 |
| JBU117 | JetBlue Airways | 2 | 2026-05-28 |
| JBU938 | JetBlue Airways | 1 | 2026-04-24 |
| JBU888 | JetBlue Airways | 1 | 2026-05-07 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | JBU465 | BOS → RSW | May 29, 12:51 UTC | May 30, 01:10 UTC | 12h 19m |
| 2026-05-28 | JBU2018 | MIA → BOS | May 28, 19:55 UTC | May 29, 17:20 UTC | 21h 26m |
| 2026-05-28 | JBU117 | BOS → ATL | May 28, 13:20 UTC | May 28, 16:15 UTC | 2h 55m |
| 2026-05-28 | JBU117 | BOS → ATL | May 28, 13:17 UTC | May 29, 00:50 UTC | 11h 33m |
| 2026-05-27 | JBU1929 | BOS → SDQ | May 27, 14:41 UTC | May 28, 13:50 UTC | 23h 9m |
| 2026-05-27 | JBU1929 | BOS → SDQ | May 27, 14:45 UTC | May 27, 16:25 UTC | 1h 40m |
| 2026-05-26 | JBU1930 | SDQ → BOS | May 26, 12:54 UTC | May 26, 22:20 UTC | 9h 25m |
| 2026-05-25 | JBU465 | BOS → RSW | May 25, 12:55 UTC | May 26, 01:14 UTC | 12h 19m |
| 2026-05-24 | JBU1737 | SJU → SDQ | May 24, 20:15 UTC | May 25, 04:05 UTC | 7h 50m |
| 2026-05-24 | JBU1083 | JFK → MCO | May 24, 01:55 UTC | May 24, 20:45 UTC | 18h 51m |
| 2026-05-23 | JBU788 | SXM → JFK | May 23, 16:49 UTC | May 24, 12:55 UTC | 20h 6m |
| 2026-05-23 | JBU787 | JFK → SXM | May 23, 12:05 UTC | May 23, 15:05 UTC | 3h 0m |
| 2026-05-23 | JBU787 | JFK → SXM | May 23, 12:00 UTC | May 24, 10:15 UTC | 22h 15m |
| 2026-05-22 | JBU466 | RSW → BOS | May 22, 13:15 UTC | May 23, 01:00 UTC | 11h 45m |
| 2026-05-21 | JBU1929 | BOS → SDQ | May 21, 14:27 UTC | May 22, 13:45 UTC | 23h 18m |
| 2026-05-21 | JBU1929 | BOS → SDQ | May 21, 14:30 UTC | May 21, 16:10 UTC | 1h 40m |
| 2026-05-21 | JBU470 | FLL → BOS | May 21, 01:10 UTC | May 21, 03:55 UTC | 2h 45m |
| 2026-05-20 | JBU505 | EWR → FLL | May 20, 09:40 UTC | May 20, 21:40 UTC | 12h 0m |
| 2026-05-19 | JBU528 | MCO → EWR | May 19, 21:10 UTC | May 20, 20:00 UTC | 22h 51m |
| 2026-05-19 | JBU1255 | FLL → GYE | May 19, 15:16 UTC | May 20, 13:20 UTC | 22h 5m |
| 2026-05-19 | JBU597 | BOS → ATL | May 19, 10:10 UTC | May 19, 12:40 UTC | 2h 30m |
| 2026-05-19 | JBU597 | BOS → ATL | May 19, 10:05 UTC | May 20, 03:35 UTC | 17h 30m |
| 2026-05-18 | JBU505 | EWR → FLL | May 18, 09:40 UTC | May 18, 12:00 UTC | 2h 20m |
| 2026-05-18 | JBU505 | EWR → FLL | May 18, 09:40 UTC | May 19, 03:35 UTC | 17h 55m |
| 2026-05-17 | JBU528 | MCO → EWR | May 17, 16:01 UTC | May 18, 03:40 UTC | 11h 40m |
| 2026-05-17 | JBU596 | PUJ → BOS | May 17, 00:53 UTC | May 17, 16:30 UTC | 15h 38m |
| 2026-05-16 | JBU1256 | GYE → FLL | May 16, 17:35 UTC | May 17, 12:50 UTC | 19h 16m |
| 2026-05-16 | JBU505 | EWR → FLL | May 16, 09:45 UTC | May 16, 12:16 UTC | 2h 30m |
| 2026-05-15 | JBU965 | BOS → RSW | May 15, 14:50 UTC | May 15, 19:40 UTC | 4h 50m |
| 2026-05-15 | JBU965 | BOS → RSW | May 15, 14:50 UTC | May 16, 12:16 UTC | 21h 26m |
| 2026-05-14 | JBU1255 | FLL → GYE | May 14, 15:13 UTC | May 15, 02:50 UTC | 11h 38m |
| 2026-05-13 | JBU1256 | GYE → FLL | May 13, 23:29 UTC | May 14, 17:15 UTC | 17h 47m |
| 2026-05-13 | JBU505 | EWR → FLL | May 13, 09:36 UTC | May 14, 00:20 UTC | 14h 45m |
| 2026-05-12 | JBU966 | BOS → ATL | May 12, 21:00 UTC | May 13, 19:50 UTC | 22h 51m |
| 2026-05-12 | JBU966 | BOS → ATL | May 12, 14:25 UTC | May 13, 02:35 UTC | 12h 10m |
| 2026-05-11 | JBU965 | BOS → RSW | May 11, 11:30 UTC | May 11, 20:35 UTC | 9h 5m |
| 2026-05-10 | JBU2210 | JAX → BOS | May 10, 20:46 UTC | May 11, 20:15 UTC | 23h 30m |
| 2026-05-10 | JBU2210 | JAX → BOS | May 10, 15:45 UTC | May 11, 00:15 UTC | 8h 30m |
| 2026-05-10 | JBU610 | DFW → JFK | May 10, 12:25 UTC | May 10, 13:25 UTC | 1h 0m |
| 2026-05-08 | JBU509 | BOS → SEA | May 8, 14:30 UTC | May 8, 14:55 UTC | 25m |
| 2026-05-08 | JBU509 | BOS → SEA | May 8, 14:28 UTC | May 9, 03:25 UTC | 12h 57m |
| 2026-05-07 | JBU888 | LAX → BOS | May 7, 21:20 UTC | May 8, 00:49 UTC | 3h 29m |
| 2026-05-07 | JBU887 | LGA → BNA | May 7, 15:40 UTC | May 7, 18:40 UTC | 3h 0m |
| 2026-05-06 | JBU966 | BOS → ATL | May 6, 20:54 UTC | May 7, 18:40 UTC | 21h 46m |
| 2026-05-06 | JBU965 | BOS → RSW | May 6, 14:15 UTC | May 6, 18:15 UTC | 4h 0m |
| 2026-05-06 | JBU966 | BOS → ATL | May 6, 14:20 UTC | May 7, 02:35 UTC | 12h 15m |
| 2026-05-05 | JBU966 | BOS → ATL | May 5, 21:22 UTC | May 6, 18:40 UTC | 21h 18m |
| 2026-05-05 | JBU966 | BOS → ATL | May 5, 14:25 UTC | May 6, 02:40 UTC | 12h 15m |
| 2026-05-04 | JBU966 | BOS → ATL | May 4, 14:15 UTC | May 5, 02:50 UTC | 12h 36m |
| 2026-05-03 | JBU882 | UVF → JFK | May 3, 22:54 UTC | May 4, 03:19 UTC | 4h 25m |
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 N2102J page for operator, model, and routing details .