sensors Mode-S transponder
AA4D77
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N763JB · AIRBUS A-320 · operated by JETBLUE AIRWAYS CORP
- Hex
- AA4D77
- Octal
- 52446567
- Decimal
- 11,160,951
- Country
- US
- Tail
- N763JB
- Type
- A320
- Flights observed
- 315
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- Jul 26, 20:05 UTC
Current position
Country allocation
The ICAO 24-bit address AA4D77 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 |
|---|---|---|---|
| JBU41 | - | 4 | 2026-07-09 |
| JBU350 | JetBlue Airways | 4 | 2026-04-16 |
| JBU1142 | JetBlue Airways | 4 | 2026-06-03 |
| JBU939 | - | 3 | 2026-06-28 |
| JBU880 | JetBlue Airways | 3 | 2026-04-17 |
| JBU66 | - | 3 | 2026-07-01 |
| JBU545 | JetBlue Airways | 3 | 2026-06-02 |
| JBU513 | - | 3 | 2026-07-15 |
| JBU504 | - | 3 | 2026-06-24 |
| JBU390 | JetBlue Airways | 3 | 2026-05-01 |
| JBU304 | JetBlue Airways | 3 | 2026-06-01 |
| JBU272 | JetBlue Airways | 3 | 2026-04-15 |
| JBU2050 | - | 3 | 2026-06-21 |
| JBU1794 | - | 3 | 2026-06-25 |
| JBU1793 | JetBlue Airways | 3 | 2026-04-18 |
| JBU1694 | - | 3 | 2026-06-22 |
| JBU1532 | JetBlue Airways | 3 | 2026-05-21 |
| JBU153 | - | 3 | 2026-06-18 |
| JBU1443 | JetBlue Airways | 3 | 2026-04-17 |
| JBU1264 | JetBlue Airways | 3 | 2026-05-07 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | JBU2582 | BNA → FLL | Jul 25, 21:50 UTC | Jul 26, 20:05 UTC | 22h 16m |
| 2026-07-25 | JBU1593 | FLL → NAS | Jul 25, 14:31 UTC | Jul 26, 13:45 UTC | 23h 15m |
| 2026-07-25 | JBU1798 | MCO → LGA | Jul 25, 01:31 UTC | Jul 25, 23:45 UTC | 22h 14m |
| 2026-07-24 | JBU2020 | FLL → ORH | Jul 24, 16:53 UTC | Jul 25, 14:55 UTC | 22h 2m |
| 2026-07-24 | JBU579 | DCA → FLL | Jul 24, 13:21 UTC | Jul 25, 11:45 UTC | 22h 24m |
| 2026-07-24 | JBU1880 | FLL → DCA | Jul 24, 00:25 UTC | Jul 24, 23:45 UTC | 23h 20m |
| 2026-07-23 | JBU1776 | KIN → FLL | Jul 23, 12:10 UTC | Jul 24, 02:30 UTC | 14h 20m |
| 2026-07-23 | JBU1775 | BOS → SAV | Jul 23, 05:34 UTC | Jul 24, 02:30 UTC | 20h 56m |
| 2026-07-22 | JBU2269 | BOS → FLL | Jul 22, 23:44 UTC | Jul 23, 19:55 UTC | 20h 11m |
| 2026-07-22 | JBU70 | PBI → JFK | Jul 22, 19:34 UTC | Jul 23, 17:25 UTC | 21h 51m |
| 2026-07-22 | JBU54 | PBI → JFK | Jul 22, 15:35 UTC | Jul 22, 15:45 UTC | 10m |
| 2026-07-22 | JBU54 | PBI → JFK | Jul 22, 15:30 UTC | Jul 23, 13:40 UTC | 22h 10m |
| 2026-07-22 | JBU293 | BOS → DEN | Jul 22, 11:40 UTC | Jul 22, 14:15 UTC | 2h 35m |
| 2026-07-22 | JBU293 | BOS → DEN | Jul 22, 11:37 UTC | Jul 23, 06:05 UTC | 18h 28m |
| 2026-07-21 | JBU2583 | JFK → MCO | Jul 21, 02:40 UTC | Jul 21, 04:40 UTC | 2h 0m |
| 2026-07-20 | JBU2984 | MCO → JFK | Jul 20, 21:25 UTC | Jul 21, 00:35 UTC | 3h 9m |
| 2026-07-20 | JBU383 | JFK → MCO | Jul 20, 16:35 UTC | Jul 20, 18:50 UTC | 2h 15m |
| 2026-07-20 | JBU1017 | BOS → JFK | Jul 20, 13:45 UTC | Jul 20, 14:35 UTC | 50m |
| 2026-07-20 | JBU2718 | JFK → BOS | Jul 20, 10:30 UTC | Jul 20, 11:10 UTC | 40m |
| 2026-07-19 | JBU938 | JFK → JFK | Jul 19, 13:35 UTC | Jul 20, 01:20 UTC | 11h 45m |
| 2026-07-18 | JBU320 | SAN → BOS | Jul 18, 10:43 UTC | Jul 19, 01:10 UTC | 14h 28m |
| 2026-07-17 | JBU790 | FLL → DTW | Jul 17, 16:40 UTC | Jul 18, 12:45 UTC | 20h 6m |
| 2026-07-16 | JBU174 | PUJ → FLL | Jul 16, 20:47 UTC | Jul 17, 19:09 UTC | 22h 23m |
| 2026-07-16 | JBU470 | - | Jul 16, 02:10 UTC | Jul 16, 04:50 UTC | 2h 40m |
| 2026-07-16 | JBU470 | FLL → BOS | Jul 16, 02:06 UTC | Jul 17, 01:45 UTC | 23h 39m |
| 2026-07-15 | JBU864 | - | Jul 15, 20:00 UTC | Jul 15, 22:35 UTC | 2h 35m |
| 2026-07-15 | JBU663 | - | Jul 15, 15:15 UTC | Jul 15, 17:55 UTC | 2h 40m |
| 2026-07-15 | JBU513 | - | Jul 15, 10:00 UTC | Jul 15, 12:20 UTC | 2h 20m |
| 2026-07-14 | JBU1754 | - | Jul 14, 12:45 UTC | Jul 14, 13:20 UTC | 35m |
| 2026-07-14 | JBU1754 | SJU → FLL | Jul 14, 11:04 UTC | Jul 15, 00:20 UTC | 13h 16m |
| 2026-07-13 | JBU1717 | PSE → FLL | Jul 13, 09:05 UTC | Jul 14, 02:55 UTC | 17h 51m |
| 2026-07-13 | JBU1714 | - | Jul 13, 02:45 UTC | Jul 13, 03:10 UTC | 25m |
| 2026-07-13 | JBU1714 | FLL → PSE | Jul 13, 02:45 UTC | Jul 14, 00:35 UTC | 21h 51m |
| 2026-07-12 | JBU1501 | JFK → FLL | Jul 12, 22:55 UTC | Jul 13, 01:30 UTC | 2h 35m |
| 2026-07-12 | JBU2032 | - | Jul 12, 15:20 UTC | Jul 12, 20:50 UTC | 5h 30m |
| 2026-07-12 | JBU1184 | MCO → JFK | Jul 12, 11:20 UTC | Jul 12, 13:25 UTC | 2h 5m |
| 2026-07-11 | JBU2201 | JFK → FLL | Jul 11, 17:10 UTC | Jul 11, 19:25 UTC | 2h 15m |
| 2026-07-11 | JBU2201 | JFK → FLL | Jul 11, 17:06 UTC | Jul 12, 15:45 UTC | 22h 40m |
| 2026-07-10 | JBU2154 | SJU → FLL | Jul 10, 15:33 UTC | Jul 11, 08:05 UTC | 16h 33m |
| 2026-07-10 | JBU1233 | MCO → SJU | Jul 10, 09:18 UTC | Jul 11, 07:45 UTC | 22h 28m |
| 2026-07-10 | JBU1334 | - | Jul 10, 00:45 UTC | Jul 10, 03:20 UTC | 2h 35m |
| 2026-07-10 | JBU1334 | SJU → MCO | Jul 10, 00:44 UTC | Jul 10, 22:25 UTC | 21h 42m |
| 2026-07-09 | JBU41 | - | Jul 9, 18:55 UTC | Jul 9, 19:05 UTC | 10m |
| 2026-07-09 | JBU41 | - | Jul 9, 16:15 UTC | Jul 9, 16:45 UTC | 30m |
| 2026-07-09 | JBU1471 | LGA → FLL | Jul 9, 11:45 UTC | Jul 9, 14:20 UTC | 2h 35m |
| 2026-07-08 | JBU2761 | FLL → SXM | Jul 8, 15:25 UTC | Jul 9, 03:45 UTC | 12h 21m |
| 2026-07-08 | JBU460 | FLL → BDL | Jul 8, 01:20 UTC | Jul 8, 22:25 UTC | 21h 5m |
| 2026-07-07 | JBU1131 | CHS → FLL | Jul 7, 22:42 UTC | Jul 8, 20:55 UTC | 22h 14m |
| 2026-07-07 | JBU105 | EWR → FLL | Jul 7, 16:39 UTC | Jul 8, 15:45 UTC | 23h 7m |
| 2026-07-07 | JBU193 | EWR → STI | Jul 7, 04:25 UTC | Jul 8, 03:45 UTC | 23h 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 N763JB page for operator, model, and routing details .