sensors Mode-S transponder
A35854
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N3142J · AIRBUS A220-300 · operated by JETBLUE AIRWAYS CORP
- Hex
- A35854
- Octal
- 50654124
- Decimal
- 10,704,980
- Country
- US
- Tail
- N3142J
- Type
- BCS3
- Flights observed
- 293
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- Jul 26, 23:00 UTC
Current position
Country allocation
The ICAO 24-bit address A35854 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 |
|---|---|---|---|
| JBU2271 | JetBlue Airways | 5 | 2026-05-16 |
| JBU2230 | - | 5 | 2026-07-09 |
| JBU984 | JetBlue Airways | 4 | 2026-05-11 |
| JBU2229 | - | 4 | 2026-07-09 |
| JBU1596 | JetBlue Airways | 4 | 2026-06-08 |
| JBU1495 | JetBlue Airways | 4 | 2026-05-16 |
| JBU955 | JetBlue Airways | 3 | 2026-07-24 |
| JBU811 | JetBlue Airways | 3 | 2026-05-24 |
| JBU2725 | JetBlue Airways | 3 | 2026-07-25 |
| JBU266 | JetBlue Airways | 3 | 2026-06-09 |
| JBU2626 | JetBlue Airways | 3 | 2026-05-11 |
| JBU259 | JetBlue Airways | 3 | 2026-05-15 |
| JBU254 | JetBlue Airways | 3 | 2026-07-18 |
| JBU2321 | - | 3 | 2026-07-02 |
| JBU2276 | JetBlue Airways | 3 | 2026-05-14 |
| JBU2275 | JetBlue Airways | 3 | 2026-05-14 |
| JBU2272 | JetBlue Airways | 3 | 2026-05-17 |
| JBU226 | JetBlue Airways | 3 | 2026-07-24 |
| JBU2119 | JetBlue Airways | 3 | 2026-05-07 |
| JBU1955 | JetBlue Airways | 3 | 2026-05-28 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | JBU493 | BOS → DEN | Jul 26, 10:37 UTC | Jul 26, 23:00 UTC | 12h 24m |
| 2026-07-26 | JBU560 | PHL → BOS | Jul 26, 01:09 UTC | Jul 26, 23:00 UTC | 21h 52m |
| 2026-07-25 | JBU2459 | BOS → PHL | Jul 25, 22:36 UTC | Jul 26, 20:40 UTC | 22h 5m |
| 2026-07-25 | JBU1806 | BNA → BOS | Jul 25, 18:19 UTC | Jul 26, 17:00 UTC | 22h 42m |
| 2026-07-25 | JBU2725 | JFK → TPA | Jul 25, 01:10 UTC | Jul 26, 00:15 UTC | 23h 5m |
| 2026-07-24 | JBU226 | TPA → JFK | Jul 24, 19:53 UTC | Jul 25, 19:00 UTC | 23h 7m |
| 2026-07-24 | JBU955 | BOS → DCA | Jul 24, 02:10 UTC | Jul 25, 01:00 UTC | 22h 50m |
| 2026-07-23 | JBU342 | SAV → JFK | Jul 23, 05:34 UTC | Jul 24, 03:20 UTC | 21h 46m |
| 2026-07-22 | JBU1736 | - | Jul 22, 18:40 UTC | Jul 22, 20:25 UTC | 1h 45m |
| 2026-07-22 | JBU1736 | STI → JFK | Jul 22, 16:47 UTC | Jul 23, 15:00 UTC | 22h 13m |
| 2026-07-21 | JBU237 | BDL → MCO | Jul 21, 15:25 UTC | Jul 21, 18:00 UTC | 2h 35m |
| 2026-07-21 | JBU884 | MCO → JFK | Jul 21, 01:20 UTC | Jul 21, 03:35 UTC | 2h 15m |
| 2026-07-20 | JBU934 | SJU → MCO | Jul 20, 22:25 UTC | Jul 20, 23:20 UTC | 55m |
| 2026-07-20 | JBU934 | SJU → MCO | Jul 20, 20:40 UTC | Jul 20, 20:50 UTC | 10m |
| 2026-07-19 | JBU803 | JFK → SJU | Jul 19, 23:18 UTC | Jul 20, 23:00 UTC | 23h 43m |
| 2026-07-19 | JBU1382 | LGA → PWM | Jul 19, 17:22 UTC | Jul 20, 03:20 UTC | 9h 59m |
| 2026-07-19 | JBU1381 | JFK → IAH | Jul 19, 12:40 UTC | Jul 20, 03:20 UTC | 14h 41m |
| 2026-07-19 | JBU1381 | - | Jul 19, 12:40 UTC | Jul 19, 15:45 UTC | 3h 5m |
| 2026-07-18 | JBU254 | DCA → BOS | Jul 18, 12:48 UTC | Jul 18, 18:25 UTC | 5h 38m |
| 2026-07-18 | JBU254 | DCA → BOS | Jul 18, 12:50 UTC | Jul 18, 13:45 UTC | 55m |
| 2026-07-17 | JBU1497 | JFK → DEN | Jul 17, 14:50 UTC | Jul 17, 18:29 UTC | 3h 40m |
| 2026-07-17 | JBU1497 | JFK → DEN | Jul 17, 14:49 UTC | Jul 18, 13:00 UTC | 22h 12m |
| 2026-07-17 | JBU854 | - | Jul 17, 10:55 UTC | Jul 17, 13:10 UTC | 2h 15m |
| 2026-07-16 | JBU1053 | - | Jul 16, 23:35 UTC | Jul 17, 02:15 UTC | 2h 40m |
| 2026-07-16 | JBU845 | - | Jul 16, 02:10 UTC | Jul 16, 02:50 UTC | 40m |
| 2026-07-16 | JBU845 | BOS → SYR | Jul 16, 02:06 UTC | Jul 17, 00:25 UTC | 22h 19m |
| 2026-07-15 | JBU772 | CUN → BOS | Jul 15, 20:20 UTC | Jul 16, 00:10 UTC | 3h 50m |
| 2026-07-15 | JBU771 | BOS → CUN | Jul 15, 14:15 UTC | Jul 15, 18:00 UTC | 3h 45m |
| 2026-07-14 | JBU1351 | ACK → BOS | Jul 14, 22:09 UTC | Jul 15, 20:55 UTC | 22h 46m |
| 2026-07-11 | JBU1351 | ACK → BOS | Jul 11, 22:49 UTC | Jul 12, 00:50 UTC | 2h 2m |
| 2026-07-11 | JBU1352 | BOS → ACK | Jul 11, 17:05 UTC | Jul 12, 00:50 UTC | 7h 46m |
| 2026-07-11 | JBU1883 | BOS → RDU | Jul 11, 11:05 UTC | Jul 12, 00:50 UTC | 13h 46m |
| 2026-07-10 | JBU1351 | ACK → BOS | Jul 10, 23:06 UTC | Jul 11, 23:00 UTC | 23h 55m |
| 2026-07-10 | JBU1352 | BOS → ACK | Jul 10, 16:21 UTC | Jul 11, 15:00 UTC | 22h 40m |
| 2026-07-10 | JBU484 | - | Jul 10, 13:35 UTC | Jul 10, 15:05 UTC | 1h 30m |
| 2026-07-09 | JBU1595 | - | Jul 9, 19:05 UTC | Jul 9, 20:50 UTC | 1h 45m |
| 2026-07-09 | JBU1595 | BOS → PUJ | Jul 9, 19:05 UTC | Jul 10, 18:40 UTC | 23h 36m |
| 2026-07-09 | JBU2230 | - | Jul 9, 14:35 UTC | Jul 9, 16:25 UTC | 1h 50m |
| 2026-07-09 | JBU2229 | - | Jul 9, 11:20 UTC | Jul 9, 13:20 UTC | 2h 0m |
| 2026-07-08 | JBU1595 | BOS → PUJ | Jul 8, 18:12 UTC | Jul 9, 17:00 UTC | 22h 49m |
| 2026-07-08 | JBU150 | SAV → BOS | Jul 8, 14:23 UTC | Jul 9, 13:00 UTC | 22h 38m |
| 2026-07-08 | JBU741 | JFK → SAV | Jul 8, 11:40 UTC | Jul 8, 13:15 UTC | 1h 35m |
| 2026-07-07 | JBU1716 | - | Jul 7, 18:40 UTC | Jul 7, 20:45 UTC | 2h 5m |
| 2026-07-07 | JBU1716 | VRB → JFK | Jul 7, 18:36 UTC | Jul 8, 17:00 UTC | 22h 25m |
| 2026-07-07 | JBU1715 | - | Jul 7, 14:35 UTC | Jul 7, 16:50 UTC | 2h 15m |
| 2026-07-07 | JBU1206 | ORD → JFK | Jul 7, 11:15 UTC | Jul 7, 12:55 UTC | 1h 40m |
| 2026-07-06 | JBU405 | JFK → ORD | Jul 6, 20:30 UTC | Jul 6, 22:25 UTC | 1h 55m |
| 2026-07-05 | JBU176 | - | Jul 5, 18:05 UTC | Jul 5, 20:50 UTC | 2h 45m |
| 2026-07-05 | JBU75 | JFK → MSY | Jul 5, 13:45 UTC | Jul 5, 16:20 UTC | 2h 35m |
| 2026-07-04 | JBU1497 | JFK → DEN | Jul 4, 16:11 UTC | Jul 5, 15:00 UTC | 22h 50m |
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 N3142J page for operator, model, and routing details .