sensors Mode-S transponder
AB4F5D
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N828JB · AIRBUS A-320 · operated by JETBLUE AIRWAYS CORP
- Hex
- AB4F5D
- Octal
- 52647535
- Decimal
- 11,226,973
- Country
- US
- Tail
- N828JB
- Type
- A320
- Flights observed
- 149
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address AB4F5D 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 |
|---|---|---|---|
| JBU1241 | JetBlue Airways | 4 | 2026-05-03 |
| JBU2334 | JetBlue Airways | 3 | 2026-05-03 |
| JBU1752 | JetBlue Airways | 3 | 2026-04-24 |
| JBU1288 | JetBlue Airways | 3 | 2026-05-13 |
| JBU1141 | JetBlue Airways | 3 | 2026-05-03 |
| JBU110 | - | 3 | 2026-04-13 |
| JBU929 | JetBlue Airways | 2 | 2026-04-15 |
| JBU872 | JetBlue Airways | 2 | 2026-05-06 |
| JBU854 | JetBlue Airways | 2 | 2026-05-28 |
| JBU814 | JetBlue Airways | 2 | 2026-05-18 |
| JBU583 | JetBlue Airways | 2 | 2026-04-14 |
| JBU569 | JetBlue Airways | 2 | 2026-05-25 |
| JBU559 | JetBlue Airways | 2 | 2026-04-13 |
| JBU534 | JetBlue Airways | 2 | 2026-04-17 |
| JBU433 | JetBlue Airways | 2 | 2026-05-01 |
| JBU297 | JetBlue Airways | 2 | 2026-05-28 |
| JBU2825 | JetBlue Airways | 2 | 2026-04-14 |
| JBU2584 | - | 2 | 2026-04-14 |
| JBU2476 | JetBlue Airways | 2 | 2026-04-22 |
| JBU2475 | JetBlue Airways | 2 | 2026-04-24 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | JBU1419 | BOS → JAX | May 30, 02:55 UTC | May 30, 04:30 UTC | 1h 35m |
| 2026-05-29 | JBU520 | ATL → JFK | May 29, 23:00 UTC | May 30, 00:55 UTC | 1h 55m |
| 2026-05-29 | JBU419 | JFK → ATL | May 29, 19:15 UTC | May 29, 21:30 UTC | 2h 15m |
| 2026-05-28 | JBU297 | BOS → ATL | May 28, 21:25 UTC | May 29, 21:15 UTC | 23h 51m |
| 2026-05-28 | JBU297 | BOS → ATL | May 28, 21:25 UTC | May 29, 21:15 UTC | 23h 51m |
| 2026-05-28 | JBU854 | PBI → JFK | May 28, 12:45 UTC | May 28, 14:55 UTC | 2h 10m |
| 2026-05-28 | JBU854 | PBI → JFK | May 28, 12:41 UTC | May 29, 11:15 UTC | 22h 34m |
| 2026-05-27 | JBU2143 | JFK → LGW | May 27, 15:15 UTC | May 28, 13:15 UTC | 22h 0m |
| 2026-05-27 | JBU2274 | TPA → EWR | May 27, 11:35 UTC | May 27, 13:45 UTC | 2h 10m |
| 2026-05-27 | JBU2274 | TPA → EWR | May 27, 11:35 UTC | May 27, 17:40 UTC | 6h 6m |
| 2026-05-26 | JBU873 | BOS → AUA | May 26, 22:39 UTC | May 27, 01:34 UTC | 2h 55m |
| 2026-05-26 | JBU1230 | CUN → EWR | May 26, 16:59 UTC | May 26, 20:34 UTC | 3h 35m |
| 2026-05-26 | JBU1229 | EWR → CUN | May 26, 11:24 UTC | May 26, 15:05 UTC | 3h 40m |
| 2026-05-25 | JBU569 | BOS → FLL | May 25, 10:20 UTC | May 25, 13:15 UTC | 2h 55m |
| 2026-05-25 | JBU569 | BOS → FLL | May 25, 10:20 UTC | May 26, 03:00 UTC | 16h 40m |
| 2026-05-24 | JBU2170 | FLL → BOS | May 24, 23:10 UTC | May 24, 23:46 UTC | 36m |
| 2026-05-24 | JBU105 | JFK → ORD | May 24, 17:50 UTC | May 24, 20:20 UTC | 2h 30m |
| 2026-05-24 | JBU2890 | SJU → EWR | May 24, 12:30 UTC | May 24, 16:05 UTC | 3h 35m |
| 2026-05-22 | JBU1593 | FLL → NAS | May 22, 11:14 UTC | May 22, 23:05 UTC | 11h 52m |
| 2026-05-22 | JBU2275 | DCA → BOS | May 22, 00:44 UTC | May 22, 23:05 UTC | 22h 22m |
| 2026-05-21 | JBU2276 | FLL → PHL | May 21, 20:21 UTC | May 22, 17:10 UTC | 20h 50m |
| 2026-05-21 | JBU1473 | JFK → CHS | May 21, 11:15 UTC | May 21, 12:30 UTC | 1h 15m |
| 2026-05-21 | JBU1473 | JFK → CHS | May 21, 11:11 UTC | May 22, 03:05 UTC | 15h 55m |
| 2026-05-20 | JBU1698 | FLL → ATL | May 20, 11:40 UTC | May 21, 11:15 UTC | 23h 36m |
| 2026-05-19 | JBU1398 | BOS → PDX | May 19, 18:49 UTC | May 20, 16:05 UTC | 21h 17m |
| 2026-05-19 | JBU1398 | BOS → PDX | May 19, 16:25 UTC | May 19, 20:05 UTC | 3h 40m |
| 2026-05-18 | JBU213 | HPN → FLL | May 18, 15:00 UTC | May 18, 15:15 UTC | 15m |
| 2026-05-18 | JBU213 | HPN → FLL | May 18, 14:56 UTC | May 19, 00:00 UTC | 9h 4m |
| 2026-05-18 | JBU814 | FLL → HPN | May 18, 11:15 UTC | May 18, 13:45 UTC | 2h 30m |
| 2026-05-18 | JBU814 | FLL → HPN | May 18, 11:11 UTC | May 19, 00:00 UTC | 12h 49m |
| 2026-05-17 | JBU38 | SJO → FLL | May 17, 15:31 UTC | May 17, 22:10 UTC | 6h 40m |
| 2026-05-17 | JBU2282 | DFW → FLL | May 17, 11:20 UTC | May 17, 13:35 UTC | 2h 15m |
| 2026-05-16 | JBU2282 | DFW → FLL | May 16, 11:25 UTC | May 17, 11:15 UTC | 23h 51m |
| 2026-05-16 | JBU2279 | FLL → DFW | May 16, 01:13 UTC | May 16, 22:05 UTC | 20h 53m |
| 2026-05-15 | JBU2427 | FLL → MBJ | May 15, 16:54 UTC | May 16, 15:16 UTC | 22h 22m |
| 2026-05-15 | JBU1327 | FLL → MBJ | May 15, 11:16 UTC | May 16, 04:05 UTC | 16h 49m |
| 2026-05-14 | JBU40 | MDE → FLL | May 14, 18:48 UTC | May 15, 17:15 UTC | 22h 27m |
| 2026-05-14 | JBU1703 | SJU → MDE | May 14, 14:45 UTC | May 15, 11:50 UTC | 21h 6m |
| 2026-05-13 | JBU997 | BOS → JFK | May 13, 17:51 UTC | May 14, 15:05 UTC | 21h 15m |
| 2026-05-13 | JBU1288 | PBI → PVD | May 13, 13:55 UTC | May 13, 16:20 UTC | 2h 25m |
| 2026-05-13 | JBU1288 | PBI → PVD | May 13, 13:51 UTC | May 14, 13:05 UTC | 23h 15m |
| 2026-05-13 | JBU2433 | DCA → PBI | May 13, 10:05 UTC | May 13, 12:25 UTC | 2h 20m |
| 2026-05-12 | JBU967 | JFK → LAX | May 12, 13:04 UTC | May 13, 11:15 UTC | 22h 12m |
| 2026-05-11 | JBU2602 | JFK → BUF | May 11, 21:07 UTC | May 12, 18:55 UTC | 21h 49m |
| 2026-05-11 | JBU2153 | BOS → GND | May 11, 17:16 UTC | May 12, 15:15 UTC | 22h 0m |
| 2026-05-11 | JBU2097 | JFK → PVR | May 11, 14:45 UTC | May 11, 16:05 UTC | 1h 20m |
| 2026-05-11 | JBU2097 | JFK → PVR | May 11, 14:41 UTC | May 12, 13:15 UTC | 22h 35m |
| 2026-05-11 | JBU1698 | FLL → ATL | May 11, 11:45 UTC | May 11, 13:10 UTC | 1h 25m |
| 2026-05-11 | JBU571 | LGA → FLL | May 11, 02:20 UTC | May 11, 04:55 UTC | 2h 35m |
| 2026-05-10 | JBU472 | SJC → BOS | May 10, 22:09 UTC | May 11, 00:45 UTC | 2h 35m |
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 N828JB page for operator, model, and routing details .