sensors Mode-S transponder
A8B8BA
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N661JB · AIRBUS A-320 · operated by JETBLUE AIRWAYS CORP
- Hex
- A8B8BA
- Octal
- 52134272
- Decimal
- 11,057,338
- Country
- US
- Tail
- N661JB
- Type
- A320
- Flights observed
- 114
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 15d ago
Last known position
Country allocation
The ICAO 24-bit address A8B8BA 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 | 3 | 2026-04-15 |
| JBU554 | JetBlue Airways | 3 | 2026-04-16 |
| JBU1553 | JetBlue Airways | 3 | 2026-04-30 |
| JBU1468 | JetBlue Airways | 3 | 2026-04-15 |
| JBU994 | JetBlue Airways | 2 | 2026-04-24 |
| JBU968 | JetBlue Airways | 2 | 2026-04-14 |
| JBU936 | JetBlue Airways | 2 | 2026-05-07 |
| JBU8597 | JetBlue Airways | 2 | 2026-05-14 |
| JBU726 | JetBlue Airways | 2 | 2026-04-25 |
| JBU687 | JetBlue Airways | 2 | 2026-04-19 |
| JBU677 | JetBlue Airways | 2 | 2026-05-01 |
| JBU656 | JetBlue Airways | 2 | 2026-04-27 |
| JBU655 | JetBlue Airways | 2 | 2026-04-28 |
| JBU461 | JetBlue Airways | 2 | 2026-04-14 |
| JBU322 | JetBlue Airways | 2 | 2026-04-22 |
| JBU2485 | JetBlue Airways | 2 | 2026-05-08 |
| JBU2476 | JetBlue Airways | 2 | 2026-04-15 |
| JBU2104 | JetBlue Airways | 2 | 2026-05-08 |
| JBU1475 | JetBlue Airways | 2 | 2026-04-16 |
| JBU1334 | JetBlue Airways | 2 | 2026-04-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-14 | JBU8597 | JFK → MLB | May 14, 13:30 UTC | May 14, 18:35 UTC | 5h 5m |
| 2026-05-14 | JBU8597 | JFK → MLB | May 14, 13:28 UTC | May 14, 18:35 UTC | 5h 8m |
| 2026-05-12 | JBU2166 | MCO → BOS | May 12, 18:20 UTC | May 12, 18:30 UTC | 10m |
| 2026-05-12 | JBU1315 | BOS → BUF | May 12, 13:45 UTC | May 12, 16:50 UTC | 3h 5m |
| 2026-05-12 | JBU1315 | BOS → BUF | May 12, 13:45 UTC | May 12, 21:25 UTC | 7h 41m |
| 2026-05-11 | JBU1782 | VPS → BOS | May 11, 21:15 UTC | May 11, 22:35 UTC | 1h 19m |
| 2026-05-11 | JBU1781 | BOS → MCO | May 11, 16:55 UTC | May 11, 19:50 UTC | 2h 56m |
| 2026-05-10 | JBU1462 | SJU → BOS | May 10, 23:34 UTC | May 11, 22:30 UTC | 22h 57m |
| 2026-05-10 | JBU1133 | SYR → JFK | May 10, 19:51 UTC | May 11, 18:30 UTC | 22h 40m |
| 2026-05-10 | JBU1133 | SYR → JFK | May 10, 19:54 UTC | May 10, 22:25 UTC | 2h 30m |
| 2026-05-10 | JBU1527 | EWR → MCO | May 10, 15:49 UTC | May 10, 18:05 UTC | 2h 15m |
| 2026-05-10 | JBU594 | STI → EWR | May 10, 00:39 UTC | May 10, 13:14 UTC | 12h 35m |
| 2026-05-08 | JBU1378 | JFK → SAP | May 8, 23:50 UTC | May 9, 12:45 UTC | 12h 55m |
| 2026-05-08 | JBU2485 | BOS → PIT | May 8, 15:50 UTC | May 8, 16:30 UTC | 40m |
| 2026-05-08 | JBU2485 | BOS → PIT | May 8, 15:50 UTC | May 9, 12:50 UTC | 21h 0m |
| 2026-05-08 | JBU2104 | BOS → LGW | May 8, 13:25 UTC | May 8, 14:10 UTC | 45m |
| 2026-05-08 | JBU2104 | BOS → LGW | May 8, 10:35 UTC | May 8, 10:44 UTC | 10m |
| 2026-05-07 | JBU936 | SJU → STT | May 7, 15:50 UTC | May 7, 16:00 UTC | 10m |
| 2026-05-07 | JBU936 | SJU → STT | May 7, 15:48 UTC | May 8, 14:10 UTC | 22h 22m |
| 2026-05-07 | JBU1638 | SDQ → SJU | May 7, 14:05 UTC | May 7, 14:20 UTC | 15m |
| 2026-05-07 | JBU1637 | SJU → SDQ | May 7, 11:35 UTC | May 7, 11:45 UTC | 10m |
| 2026-05-06 | JBU433 | BTV → JFK | May 6, 22:40 UTC | May 7, 01:00 UTC | 2h 20m |
| 2026-05-06 | JBU987 | ORH → MCO | May 6, 18:05 UTC | May 6, 20:30 UTC | 2h 25m |
| 2026-05-06 | JBU588 | LAX → BOS | May 6, 14:35 UTC | May 6, 17:00 UTC | 2h 25m |
| 2026-05-06 | JBU1443 | MHT → MCO | May 6, 10:25 UTC | May 6, 13:00 UTC | 2h 35m |
| 2026-05-05 | JBU1144 | MCO → EWR | May 5, 16:20 UTC | May 5, 18:55 UTC | 2h 35m |
| 2026-05-05 | JBU1144 | MCO → EWR | May 5, 16:15 UTC | May 6, 14:30 UTC | 22h 16m |
| 2026-05-05 | JBU851 | JFK → CUN | May 5, 11:45 UTC | May 5, 14:20 UTC | 2h 35m |
| 2026-05-05 | JBU250 | LGB → OAK | May 5, 01:25 UTC | May 5, 03:20 UTC | 1h 55m |
| 2026-05-04 | JBU349 | BOS → SAV | May 4, 21:05 UTC | May 4, 23:20 UTC | 2h 15m |
| 2026-05-04 | JBU516 | RSW → BOS | May 4, 18:40 UTC | May 4, 19:50 UTC | 1h 10m |
| 2026-05-04 | JBU1115 | BOS → DFW | May 4, 16:05 UTC | May 4, 17:15 UTC | 1h 10m |
| 2026-05-04 | JBU2840 | SRQ → BOS | May 4, 10:20 UTC | May 4, 13:15 UTC | 2h 55m |
| 2026-05-03 | JBU2041 | BOS → CLE | May 3, 22:54 UTC | May 4, 01:55 UTC | 3h 0m |
| 2026-05-03 | JBU2896 | PUJ → BOS | May 3, 12:00 UTC | May 3, 20:49 UTC | 8h 50m |
| 2026-05-02 | JBU366 | RSW → BOS | May 2, 10:15 UTC | May 2, 13:00 UTC | 2h 45m |
| 2026-05-01 | JBU677 | JFK → JAX | May 1, 12:15 UTC | May 1, 14:20 UTC | 2h 5m |
| 2026-05-01 | JBU677 | JFK → JAX | May 1, 12:12 UTC | May 2, 10:30 UTC | 22h 19m |
| 2026-05-01 | JBU1129 | PVD → JFK | May 1, 10:00 UTC | May 1, 10:30 UTC | 30m |
| 2026-04-30 | JBU526 | MCO → EWR | Apr 30, 20:25 UTC | Apr 30, 23:50 UTC | 3h 25m |
| 2026-04-30 | JBU1553 | FLL → SJU | Apr 30, 18:55 UTC | Apr 30, 19:05 UTC | 10m |
| 2026-04-30 | JBU1553 | FLL → SJU | Apr 30, 16:55 UTC | Apr 30, 17:20 UTC | 25m |
| 2026-04-30 | JBU1071 | BOS → JFK | Apr 30, 11:40 UTC | Apr 30, 14:10 UTC | 2h 30m |
| 2026-04-29 | JBU1172 | SLC → JFK | Apr 29, 22:25 UTC | Apr 30, 00:55 UTC | 2h 29m |
| 2026-04-29 | JBU1101 | JFK → FLL | Apr 29, 16:00 UTC | Apr 29, 18:30 UTC | 2h 30m |
| 2026-04-28 | JBU1168 | PBI → HPN | Apr 28, 20:05 UTC | Apr 29, 18:30 UTC | 22h 26m |
| 2026-04-28 | JBU1169 | BOS → FLL | Apr 28, 15:05 UTC | Apr 28, 15:45 UTC | 40m |
| 2026-04-28 | JBU1169 | BOS → FLL | Apr 28, 15:02 UTC | Apr 29, 12:15 UTC | 21h 14m |
| 2026-04-28 | JBU1084 | MCO → ISP | Apr 28, 11:10 UTC | Apr 28, 13:20 UTC | 2h 10m |
| 2026-04-28 | JBU655 | SYR → MCO | Apr 28, 00:50 UTC | Apr 28, 03:00 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 N661JB page for operator, model, and routing details .