sensors Mode-S transponder
A37FB0
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N3241J · AIRBUS A220-300 · operated by JETBLUE AIRWAYS CORP
- Hex
- A37FB0
- Octal
- 50677660
- Decimal
- 10,715,056
- Country
- US
- Tail
- N3241J
- Type
- BCS3
- Flights observed
- 328
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- Jul 26, 22:00 UTC
Last known position
Country allocation
The ICAO 24-bit address A37FB0 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 |
|---|---|---|---|
| JBU845 | - | 5 | 2026-07-08 |
| JBU109 | JetBlue Airways | 5 | 2026-05-12 |
| JBU400 | JetBlue Airways | 4 | 2026-06-17 |
| JBU312 | JetBlue Airways | 4 | 2026-06-23 |
| JBU2784 | JetBlue Airways | 4 | 2026-05-20 |
| JBU1310 | JetBlue Airways | 4 | 2026-06-06 |
| JBU934 | - | 3 | 2026-06-20 |
| JBU883 | JetBlue Airways | 3 | 2026-05-20 |
| JBU717 | - | 3 | 2026-07-11 |
| JBU618 | JetBlue Airways | 3 | 2026-06-05 |
| JBU541 | JetBlue Airways | 3 | 2026-04-25 |
| JBU53 | - | 3 | 2026-07-06 |
| JBU401 | - | 3 | 2026-06-16 |
| JBU392 | JetBlue Airways | 3 | 2026-04-16 |
| JBU374 | - | 3 | 2026-06-16 |
| JBU311 | - | 3 | 2026-06-23 |
| JBU2783 | JetBlue Airways | 3 | 2026-05-02 |
| JBU2473 | - | 3 | 2026-06-25 |
| JBU2091 | - | 3 | 2026-07-13 |
| JBU2064 | JetBlue Airways | 3 | 2026-04-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | JBU1897 | BOS → LIR | Jul 26, 00:02 UTC | Jul 26, 22:00 UTC | 21h 59m |
| 2026-07-25 | JBU1351 | ACK → BOS | Jul 25, 22:06 UTC | Jul 26, 22:00 UTC | 23h 55m |
| 2026-07-25 | JBU2666 | HPN → ACK | Jul 25, 20:05 UTC | Jul 25, 20:40 UTC | 35m |
| 2026-07-25 | JBU2666 | HPN → ACK | Jul 25, 20:04 UTC | Jul 26, 18:35 UTC | 22h 32m |
| 2026-07-25 | JBU2665 | ACK → HPN | Jul 25, 18:10 UTC | Jul 25, 18:50 UTC | 40m |
| 2026-07-25 | JBU1352 | MCO → BOS | Jul 25, 16:25 UTC | Jul 25, 16:50 UTC | 25m |
| 2026-07-25 | JBU484 | - | Jul 25, 13:35 UTC | Jul 25, 14:55 UTC | 1h 20m |
| 2026-07-25 | JBU1883 | BOS → RDU | Jul 25, 10:45 UTC | Jul 25, 12:25 UTC | 1h 40m |
| 2026-07-25 | JBU1318 | JFK → BOS | Jul 25, 03:55 UTC | Jul 25, 04:35 UTC | 40m |
| 2026-07-25 | JBU817 | BOS → JFK | Jul 25, 00:30 UTC | Jul 25, 01:15 UTC | 45m |
| 2026-07-24 | JBU932 | IAH → BOS | Jul 24, 18:30 UTC | Jul 24, 21:45 UTC | 3h 15m |
| 2026-07-24 | JBU2033 | BOS → IAH | Jul 24, 13:20 UTC | Jul 24, 16:50 UTC | 3h 30m |
| 2026-07-23 | JBU781 | BOS → RIC | Jul 23, 20:20 UTC | Jul 24, 20:00 UTC | 23h 40m |
| 2026-07-23 | JBU204 | BDA → BOS | Jul 23, 16:17 UTC | Jul 24, 16:00 UTC | 23h 43m |
| 2026-07-23 | JBU203 | BOS → BDA | Jul 23, 12:48 UTC | Jul 24, 11:50 UTC | 23h 2m |
| 2026-07-23 | JBU203 | BOS → BDA | Jul 23, 12:50 UTC | Jul 23, 13:25 UTC | 35m |
| 2026-07-22 | JBU1806 | - | Jul 22, 19:10 UTC | Jul 22, 21:25 UTC | 2h 15m |
| 2026-07-21 | JBU1236 | MSP → BOS | Jul 21, 11:45 UTC | Jul 21, 19:00 UTC | 7h 15m |
| 2026-07-21 | JBU820 | SDQ → JFK | Jul 21, 03:10 UTC | Jul 21, 03:15 UTC | 5m |
| 2026-07-21 | JBU1498 | - | Jul 21, 00:40 UTC | Jul 21, 03:05 UTC | 2h 25m |
| 2026-07-21 | JBU1498 | MCI → JFK | Jul 21, 00:38 UTC | Jul 21, 19:00 UTC | 18h 22m |
| 2026-07-20 | JBU1498 | - | Jul 20, 22:25 UTC | Jul 20, 23:35 UTC | 1h 10m |
| 2026-07-20 | JBU1497 | - | Jul 20, 17:10 UTC | Jul 20, 20:40 UTC | 3h 30m |
| 2026-07-19 | JBU2510 | SDQ → JFK | Jul 19, 20:57 UTC | Jul 20, 20:00 UTC | 23h 4m |
| 2026-07-19 | JBU1009 | - | Jul 19, 15:50 UTC | Jul 19, 17:10 UTC | 1h 20m |
| 2026-07-19 | JBU1009 | JFK → SDQ | Jul 19, 15:49 UTC | Jul 20, 14:00 UTC | 22h 12m |
| 2026-07-17 | JBU36 | STI → JFK | Jul 17, 19:05 UTC | Jul 17, 23:55 UTC | 4h 50m |
| 2026-07-17 | JBU254 | DCA → JFK | Jul 17, 10:33 UTC | Jul 17, 23:55 UTC | 13h 22m |
| 2026-07-16 | JBU1497 | JFK → DEN | Jul 16, 14:52 UTC | Jul 17, 14:00 UTC | 23h 8m |
| 2026-07-16 | JBU135 | JFK → PHX | Jul 16, 02:17 UTC | Jul 16, 23:49 UTC | 21h 33m |
| 2026-07-15 | JBU2285 | JFK → RDU | Jul 15, 12:36 UTC | Jul 16, 12:00 UTC | 23h 24m |
| 2026-07-14 | JBU2901 | - | Jul 14, 20:10 UTC | Jul 14, 21:10 UTC | 1h 0m |
| 2026-07-14 | JBU2901 | BUF → JFK | Jul 14, 20:06 UTC | Jul 15, 20:00 UTC | 23h 54m |
| 2026-07-14 | JBU2902 | JFK → BUF | Jul 14, 17:35 UTC | Jul 14, 18:30 UTC | 55m |
| 2026-07-14 | JBU2786 | - | Jul 14, 15:10 UTC | Jul 14, 16:20 UTC | 1h 10m |
| 2026-07-13 | JBU1963 | - | Jul 13, 21:05 UTC | Jul 13, 21:50 UTC | 45m |
| 2026-07-13 | JBU1963 | HYA → JFK | Jul 13, 21:04 UTC | Jul 14, 18:30 UTC | 21h 27m |
| 2026-07-13 | JBU1964 | - | Jul 13, 18:35 UTC | Jul 13, 19:20 UTC | 45m |
| 2026-07-13 | JBU92 | - | Jul 13, 16:10 UTC | Jul 13, 16:45 UTC | 35m |
| 2026-07-13 | JBU2091 | - | Jul 13, 14:05 UTC | Jul 13, 14:45 UTC | 40m |
| 2026-07-13 | JBU286 | - | Jul 13, 10:55 UTC | Jul 13, 12:05 UTC | 1h 10m |
| 2026-07-13 | JBU185 | JFK → RDU | Jul 13, 01:55 UTC | Jul 13, 03:05 UTC | 1h 10m |
| 2026-07-12 | JBU36 | - | Jul 12, 14:45 UTC | Jul 12, 22:50 UTC | 8h 5m |
| 2026-07-11 | JBU1173 | JFK → BNA | Jul 11, 20:49 UTC | Jul 12, 15:25 UTC | 18h 37m |
| 2026-07-11 | JBU717 | - | Jul 11, 17:45 UTC | Jul 11, 18:40 UTC | 55m |
| 2026-07-11 | JBU717 | BOS → JFK | Jul 11, 17:45 UTC | Jul 12, 15:25 UTC | 21h 41m |
| 2026-07-11 | JBU1192 | TPA → BOS | Jul 11, 10:35 UTC | Jul 11, 13:15 UTC | 2h 40m |
| 2026-07-10 | JBU625 | JFK → TPA | Jul 10, 19:20 UTC | Jul 10, 21:40 UTC | 2h 20m |
| 2026-07-10 | JBU2012 | - | Jul 10, 15:00 UTC | Jul 10, 17:05 UTC | 2h 5m |
| 2026-07-10 | JBU2011 | - | Jul 10, 11:30 UTC | Jul 10, 13:40 UTC | 2h 10m |
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 N3241J page for operator, model, and routing details .