sensors Mode-S transponder
AA8B40
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N779JB · AIRBUS A-320 · operated by JETBLUE AIRWAYS CORP
- Hex
- AA8B40
- Octal
- 52505500
- Decimal
- 11,176,768
- Country
- US
- Tail
- N779JB
- Type
- A320
- Flights observed
- 267
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address AA8B40 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 |
|---|---|---|---|
| JBU813 | JetBlue Airways | 5 | 2026-04-23 |
| JBU39 | JetBlue Airways | 4 | 2026-04-25 |
| JBU326 | - | 4 | 2026-06-16 |
| JBU791 | JetBlue Airways | 3 | 2026-05-19 |
| JBU571 | JetBlue Airways | 3 | 2026-06-17 |
| JBU38 | JetBlue Airways | 3 | 2026-04-19 |
| JBU306 | - | 3 | 2026-07-06 |
| JBU2602 | JetBlue Airways | 3 | 2026-05-04 |
| JBU2282 | JetBlue Airways | 3 | 2026-04-25 |
| JBU2028 | - | 3 | 2026-07-04 |
| JBU192 | JetBlue Airways | 3 | 2026-05-20 |
| JBU1698 | - | 3 | 2026-06-25 |
| JBU1529 | JetBlue Airways | 3 | 2026-05-21 |
| JBU1453 | - | 3 | 2026-07-10 |
| JBU1193 | - | 3 | 2026-06-21 |
| JBU1138 | JetBlue Airways | 3 | 2026-05-02 |
| JBU1134 | JetBlue Airways | 3 | 2026-06-23 |
| JBU1039 | JetBlue Airways | 3 | 2026-06-12 |
| JBU891 | - | 2 | 2026-06-22 |
| JBU868 | JetBlue Airways | 2 | 2026-04-13 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | JBU2510 | SDQ → JFK | Jul 13, 20:05 UTC | Jul 14, 12:45 UTC | 16h 41m |
| 2026-07-13 | JBU1009 | - | Jul 13, 14:35 UTC | Jul 13, 15:50 UTC | 1h 15m |
| 2026-07-13 | JBU1009 | JFK → SDQ | Jul 13, 14:31 UTC | Jul 14, 12:45 UTC | 22h 15m |
| 2026-07-13 | JBU1678 | - | Jul 13, 10:20 UTC | Jul 13, 12:15 UTC | 1h 55m |
| 2026-07-12 | JBU1383 | - | Jul 12, 16:20 UTC | Jul 12, 16:25 UTC | 5m |
| 2026-07-12 | JBU1380 | - | Jul 12, 14:10 UTC | Jul 12, 15:40 UTC | 1h 30m |
| 2026-07-12 | JBU1380 | FLL → GUA | Jul 12, 14:06 UTC | Jul 13, 13:20 UTC | 23h 15m |
| 2026-07-11 | JBU1474 | PUJ → FLL | Jul 11, 17:54 UTC | Jul 12, 15:40 UTC | 21h 47m |
| 2026-07-11 | JBU193 | EWR → STI | Jul 11, 03:43 UTC | Jul 12, 01:40 UTC | 21h 58m |
| 2026-07-10 | JBU1453 | - | Jul 10, 19:40 UTC | Jul 10, 19:50 UTC | 10m |
| 2026-07-10 | JBU1453 | - | Jul 10, 17:40 UTC | Jul 10, 18:10 UTC | 30m |
| 2026-07-10 | JBU1453 | FLL → SJU | Jul 10, 17:35 UTC | Jul 11, 15:45 UTC | 22h 11m |
| 2026-07-10 | JBU664 | ORD → FLL | Jul 10, 12:35 UTC | Jul 10, 15:05 UTC | 2h 30m |
| 2026-07-09 | JBU790 | FLL → DTW | Jul 9, 16:11 UTC | Jul 10, 15:05 UTC | 22h 54m |
| 2026-07-09 | JBU706 | FLL → EWR | Jul 9, 03:06 UTC | Jul 10, 02:00 UTC | 22h 54m |
| 2026-07-08 | JBU1976 | KIN → FLL | Jul 8, 23:43 UTC | Jul 9, 22:00 UTC | 22h 17m |
| 2026-07-08 | JBU1975 | - | Jul 8, 20:55 UTC | Jul 8, 21:25 UTC | 30m |
| 2026-07-08 | JBU1975 | FLL → KIN | Jul 8, 20:50 UTC | Jul 9, 18:50 UTC | 22h 0m |
| 2026-07-08 | JBU1245 | - | Jul 8, 17:15 UTC | Jul 8, 19:10 UTC | 1h 55m |
| 2026-07-08 | JBU1246 | - | Jul 8, 14:20 UTC | Jul 8, 16:05 UTC | 1h 45m |
| 2026-07-07 | JBU1157 | FLL → LIR | Jul 7, 19:11 UTC | Jul 8, 18:00 UTC | 22h 50m |
| 2026-07-07 | JBU579 | DCA → FLL | Jul 7, 15:20 UTC | Jul 7, 17:25 UTC | 2h 5m |
| 2026-07-07 | JBU579 | DCA → FLL | Jul 7, 15:20 UTC | Jul 8, 12:50 UTC | 21h 31m |
| 2026-07-06 | JBU306 | - | Jul 6, 12:00 UTC | Jul 6, 15:30 UTC | 3h 30m |
| 2026-07-06 | JBU306 | FLL → EWR | Jul 6, 11:59 UTC | Jul 7, 01:15 UTC | 13h 16m |
| 2026-07-05 | JBU2117 | JAX → FLL | Jul 5, 13:46 UTC | Jul 6, 12:00 UTC | 22h 14m |
| 2026-07-05 | JBU2118 | FLL → JAX | Jul 5, 11:41 UTC | Jul 5, 14:40 UTC | 3h 0m |
| 2026-07-05 | JBU613 | HPN → FLL | Jul 5, 03:51 UTC | Jul 5, 14:40 UTC | 10h 50m |
| 2026-07-04 | JBU1694 | - | Jul 4, 23:35 UTC | Jul 5, 00:00 UTC | 25m |
| 2026-07-04 | JBU1827 | EWR → MCO | Jul 4, 18:51 UTC | Jul 5, 14:40 UTC | 19h 50m |
| 2026-07-04 | JBU1827 | - | Jul 4, 18:55 UTC | Jul 4, 21:45 UTC | 2h 50m |
| 2026-07-04 | JBU2028 | - | Jul 4, 14:15 UTC | Jul 4, 17:15 UTC | 3h 0m |
| 2026-07-04 | JBU769 | - | Jul 4, 10:20 UTC | Jul 4, 11:55 UTC | 1h 35m |
| 2026-07-03 | JBU1142 | - | Jul 3, 14:40 UTC | Jul 3, 17:00 UTC | 2h 20m |
| 2026-07-03 | JBU1142 | PBI → BDL | Jul 3, 14:37 UTC | Jul 4, 14:00 UTC | 23h 24m |
| 2026-07-03 | JBU1067 | - | Jul 3, 11:00 UTC | Jul 3, 13:20 UTC | 2h 20m |
| 2026-07-02 | JBU545 | - | Jul 2, 17:45 UTC | Jul 2, 20:10 UTC | 2h 25m |
| 2026-07-02 | JBU545 | ISP → PBI | Jul 2, 17:43 UTC | Jul 3, 13:20 UTC | 19h 37m |
| 2026-07-02 | JBU444 | - | Jul 2, 14:25 UTC | Jul 2, 16:40 UTC | 2h 15m |
| 2026-07-02 | JBU445 | - | Jul 2, 10:40 UTC | Jul 2, 13:05 UTC | 2h 25m |
| 2026-07-02 | JBU846 | - | Jul 2, 00:45 UTC | Jul 2, 02:55 UTC | 2h 10m |
| 2026-07-01 | JBU1014 | - | Jul 1, 20:40 UTC | Jul 1, 22:20 UTC | 1h 40m |
| 2026-07-01 | JBU1013 | - | Jul 1, 17:55 UTC | Jul 1, 19:30 UTC | 1h 35m |
| 2026-07-01 | JBU1044 | - | Jul 1, 13:00 UTC | Jul 1, 15:25 UTC | 2h 25m |
| 2026-06-30 | JBU1133 | SYR → JFK | Jun 30, 23:10 UTC | Jun 30, 23:25 UTC | 15m |
| 2026-06-30 | JBU1133 | SYR → JFK | Jun 30, 21:00 UTC | Jun 30, 21:35 UTC | 35m |
| 2026-06-30 | JBU2695 | - | Jun 30, 14:35 UTC | Jun 30, 16:50 UTC | 2h 15m |
| 2026-06-29 | JBU618 | JFK → BOS | Jun 29, 20:39 UTC | Jun 30, 20:00 UTC | 23h 22m |
| 2026-06-29 | JBU164 | - | Jun 29, 16:19 UTC | Jun 29, 18:39 UTC | 2h 20m |
| 2026-06-29 | JBU164 | SRQ → JFK | Jun 29, 16:17 UTC | Jun 30, 16:00 UTC | 23h 44m |
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 N779JB page for operator, model, and routing details .