sensors Mode-S transponder
A7A1E8
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N591JB · AIRBUS A-320 · operated by JETBLUE AIRWAYS CORPORATION
- Hex
- A7A1E8
- Octal
- 51720750
- Decimal
- 10,985,960
- Country
- US
- Tail
- N591JB
- Type
- A320
- Flights observed
- 154
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address A7A1E8 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 |
|---|---|---|---|
| JBU868 | JetBlue Airways | 4 | 2026-04-20 |
| JBU1903 | JetBlue Airways | 4 | 2026-05-07 |
| JBU98 | - | 3 | 2026-04-14 |
| JBU961 | JetBlue Airways | 3 | 2026-04-22 |
| JBU2476 | JetBlue Airways | 3 | 2026-05-18 |
| JBU2390 | JetBlue Airways | 3 | 2026-04-16 |
| JBU1962 | JetBlue Airways | 3 | 2026-04-22 |
| JBU1868 | JetBlue Airways | 3 | 2026-05-17 |
| JBU1367 | JetBlue Airways | 3 | 2026-05-03 |
| JBU1242 | JetBlue Airways | 3 | 2026-04-27 |
| JBU1048 | JetBlue Airways | 3 | 2026-05-20 |
| JBU969 | JetBlue Airways | 2 | 2026-04-16 |
| JBU962 | JetBlue Airways | 2 | 2026-04-22 |
| JBU897 | JetBlue Airways | 2 | 2026-05-25 |
| JBU770 | JetBlue Airways | 2 | 2026-05-27 |
| JBU717 | JetBlue Airways | 2 | 2026-05-16 |
| JBU705 | JetBlue Airways | 2 | 2026-05-12 |
| JBU676 | JetBlue Airways | 2 | 2026-04-28 |
| JBU356 | - | 2 | 2026-04-13 |
| JBU322 | JetBlue Airways | 2 | 2026-04-25 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | JBU38 | SJO → FLL | May 29, 15:45 UTC | May 29, 22:00 UTC | 6h 15m |
| 2026-05-29 | JBU27 | BOS → BWI | May 29, 10:15 UTC | May 29, 12:55 UTC | 2h 40m |
| 2026-05-28 | JBU1719 | JFK → ATL | May 28, 17:46 UTC | May 29, 16:00 UTC | 22h 15m |
| 2026-05-28 | JBU769 | BOS → CUN | May 28, 01:05 UTC | May 28, 02:00 UTC | 55m |
| 2026-05-27 | JBU770 | FLL → BOS | May 27, 22:30 UTC | May 28, 00:05 UTC | 1h 35m |
| 2026-05-27 | JBU770 | FLL → BOS | May 27, 22:27 UTC | May 28, 21:10 UTC | 22h 43m |
| 2026-05-27 | JBU987 | ORH → MCO | May 27, 18:30 UTC | May 27, 21:10 UTC | 2h 40m |
| 2026-05-27 | JBU588 | LAX → BOS | May 27, 14:40 UTC | May 27, 16:50 UTC | 2h 10m |
| 2026-05-27 | JBU351 | BOS → MCO | May 27, 10:30 UTC | May 27, 13:05 UTC | 2h 35m |
| 2026-05-26 | JBU2895 | BOS → PUJ | May 26, 10:47 UTC | May 26, 19:55 UTC | 9h 8m |
| 2026-05-26 | JBU1096 | ATL → BOS | May 26, 01:19 UTC | May 26, 19:55 UTC | 18h 36m |
| 2026-05-25 | JBU897 | BOS → LIR | May 25, 21:28 UTC | May 26, 19:55 UTC | 22h 27m |
| 2026-05-25 | JBU897 | BOS → LIR | May 25, 21:30 UTC | May 25, 23:54 UTC | 2h 25m |
| 2026-05-25 | JBU1118 | JFK → BOS | May 25, 19:15 UTC | May 25, 19:54 UTC | 40m |
| 2026-05-25 | JBU1017 | BOS → JFK | May 25, 17:05 UTC | May 25, 17:50 UTC | 45m |
| 2026-05-24 | JBU2052 | MCO → BOS | May 24, 20:05 UTC | May 25, 19:59 UTC | 23h 55m |
| 2026-05-24 | JBU2052 | MCO → BOS | May 24, 20:05 UTC | May 24, 21:50 UTC | 1h 45m |
| 2026-05-24 | JBU127 | EWR → MCO | May 24, 15:45 UTC | May 24, 18:05 UTC | 2h 20m |
| 2026-05-24 | JBU193 | JFK → MCO | May 24, 02:50 UTC | May 24, 13:20 UTC | 10h 30m |
| 2026-05-23 | JBU2521 | BOS → PBI | May 23, 15:15 UTC | May 24, 13:30 UTC | 22h 15m |
| 2026-05-23 | JBU553 | FLL → SJU | May 23, 01:59 UTC | May 24, 00:00 UTC | 22h 2m |
| 2026-05-22 | JBU369 | BOS → FLL | May 22, 21:43 UTC | May 23, 20:00 UTC | 22h 18m |
| 2026-05-22 | JBU2896 | PUJ → BOS | May 22, 15:51 UTC | May 23, 13:20 UTC | 21h 29m |
| 2026-05-22 | JBU2895 | BOS → PUJ | May 22, 10:55 UTC | May 22, 19:25 UTC | 8h 30m |
| 2026-05-21 | JBU566 | RSW → BOS | May 21, 22:10 UTC | May 22, 00:50 UTC | 2h 40m |
| 2026-05-21 | JBU1911 | EWR → RSW | May 21, 18:05 UTC | May 21, 20:40 UTC | 2h 35m |
| 2026-05-21 | JBU2890 | SJU → EWR | May 21, 12:35 UTC | May 21, 16:05 UTC | 3h 30m |
| 2026-05-20 | JBU1047 | BOS → JFK | May 20, 16:10 UTC | May 20, 19:35 UTC | 3h 25m |
| 2026-05-20 | JBU1048 | SJU → PHL | May 20, 11:05 UTC | May 20, 14:25 UTC | 3h 20m |
| 2026-05-19 | JBU1475 | BDL → SJU | May 19, 01:40 UTC | May 19, 02:00 UTC | 20m |
| 2026-05-18 | JBU2476 | SJU → BDL | May 18, 22:50 UTC | May 19, 00:20 UTC | 1h 30m |
| 2026-05-18 | JBU2476 | SJU → BDL | May 18, 20:25 UTC | May 18, 20:40 UTC | 15m |
| 2026-05-18 | JBU2476 | SJU → BDL | May 18, 20:20 UTC | May 19, 05:40 UTC | 9h 20m |
| 2026-05-18 | JBU8375 | BOS → SYR | May 18, 15:20 UTC | May 18, 18:50 UTC | 3h 29m |
| 2026-05-17 | JBU1568 | PUJ → JFK | May 17, 18:44 UTC | May 18, 17:10 UTC | 22h 27m |
| 2026-05-17 | JBU1868 | PBI → HPN | May 17, 15:02 UTC | May 18, 06:05 UTC | 15h 4m |
| 2026-05-16 | JBU717 | BOS → JFK | May 16, 21:47 UTC | May 17, 19:50 UTC | 22h 4m |
| 2026-05-16 | JBU192 | TPA → BOS | May 16, 12:05 UTC | May 16, 14:46 UTC | 2h 40m |
| 2026-05-16 | JBU192 | TPA → BOS | May 16, 12:03 UTC | May 17, 09:45 UTC | 21h 43m |
| 2026-05-15 | JBU1569 | JFK → PUJ | May 15, 15:05 UTC | May 15, 15:55 UTC | 50m |
| 2026-05-15 | JBU1569 | JFK → PUJ | May 15, 15:01 UTC | May 16, 14:01 UTC | 23h 0m |
| 2026-05-14 | JBU1111 | JFK → CUR | May 14, 13:09 UTC | May 15, 00:15 UTC | 11h 7m |
| 2026-05-14 | JBU1510 | SDQ → JFK | May 14, 06:59 UTC | May 15, 00:15 UTC | 17h 17m |
| 2026-05-13 | JBU1009 | BOS → JFK | May 13, 20:09 UTC | May 14, 17:50 UTC | 21h 42m |
| 2026-05-13 | JBU1449 | FLL → STI | May 13, 10:52 UTC | May 14, 10:00 UTC | 23h 9m |
| 2026-05-12 | JBU705 | BOS → SAN | May 12, 22:45 UTC | May 13, 01:25 UTC | 2h 40m |
| 2026-05-12 | JBU705 | BOS → SAN | May 12, 22:45 UTC | May 13, 20:45 UTC | 22h 1m |
| 2026-05-12 | JBU1229 | EWR → CUN | May 12, 11:35 UTC | May 12, 20:10 UTC | 8h 35m |
| 2026-05-11 | JBU1287 | PVD → PBI | May 11, 18:15 UTC | May 11, 21:21 UTC | 3h 5m |
| 2026-05-11 | JBU1288 | PBI → PVD | May 11, 14:45 UTC | May 11, 17:00 UTC | 2h 16m |
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 N591JB page for operator, model, and routing details .