sensors Mode-S transponder
ADF128
ICAO 24-bit transponder address · allocated to United States
Currently assigned to N998JE · AIRBUS A-321 · operated by JETBLUE AIRWAYS CORP
- Hex
- ADF128
- Octal
- 53370450
- Decimal
- 11,399,464
- Country
- US
- Tail
- N998JE
- Type
- A321
- Flights observed
- 126
- Distinct callsigns
- 20
- Country
- US
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address ADF128 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 |
|---|---|---|---|
| JBU774 | JetBlue Airways | 4 | 2026-04-17 |
| JBU651 | JetBlue Airways | 4 | 2026-05-13 |
| JBU474 | JetBlue Airways | 4 | 2026-05-16 |
| JBU1347 | JetBlue Airways | 4 | 2026-05-04 |
| JBU771 | JetBlue Airways | 3 | 2026-05-07 |
| JBU73 | JetBlue Airways | 3 | 2026-04-17 |
| JBU454 | JetBlue Airways | 3 | 2026-05-28 |
| JBU373 | JetBlue Airways | 3 | 2026-05-16 |
| JBU322 | JetBlue Airways | 3 | 2026-05-13 |
| JBU1817 | - | 3 | 2026-04-13 |
| JBU172 | JetBlue Airways | 3 | 2026-04-14 |
| JBU171 | JetBlue Airways | 3 | 2026-04-14 |
| JBU165 | JetBlue Airways | 3 | 2026-04-16 |
| JBU1348 | JetBlue Airways | 3 | 2026-05-04 |
| JBU993 | JetBlue Airways | 2 | 2026-05-02 |
| JBU92 | JetBlue Airways | 2 | 2026-04-23 |
| JBU910 | JetBlue Airways | 2 | 2026-05-09 |
| JBU91 | JetBlue Airways | 2 | 2026-04-27 |
| JBU909 | JetBlue Airways | 2 | 2026-05-09 |
| JBU852 | JetBlue Airways | 2 | 2026-04-16 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | JBU1682 | UVF → JFK | May 29, 12:35 UTC | May 29, 23:05 UTC | 10h 31m |
| 2026-05-28 | JBU938 | SJD → JFK | May 28, 20:37 UTC | May 29, 19:35 UTC | 22h 58m |
| 2026-05-28 | JBU939 | JFK → SJD | May 28, 13:30 UTC | May 29, 01:40 UTC | 12h 10m |
| 2026-05-28 | JBU454 | PBI → JFK | May 28, 06:00 UTC | May 28, 10:45 UTC | 4h 45m |
| 2026-05-27 | JBU355 | JFK → ONT | May 27, 22:20 UTC | May 28, 03:50 UTC | 5h 30m |
| 2026-05-27 | JBU1008 | JFK → BOS | May 27, 11:15 UTC | May 27, 19:50 UTC | 8h 35m |
| 2026-05-27 | JBU1802 | FLL → JFK | May 27, 01:05 UTC | May 27, 03:20 UTC | 2h 15m |
| 2026-05-26 | JBU2096 | CUN → FLL | May 26, 21:40 UTC | May 26, 23:05 UTC | 1h 25m |
| 2026-05-26 | JBU2095 | FLL → CUN | May 26, 12:10 UTC | May 26, 13:40 UTC | 1h 30m |
| 2026-05-25 | JBU1801 | JFK → NAS | May 25, 22:00 UTC | May 26, 00:24 UTC | 2h 25m |
| 2026-05-25 | JBU1936 | STI → JFK | May 25, 01:50 UTC | May 26, 00:00 UTC | 22h 10m |
| 2026-05-24 | JBU2952 | MCO → BOS | May 24, 15:25 UTC | May 24, 16:00 UTC | 35m |
| 2026-05-24 | JBU2951 | BOS → MCO | May 24, 10:30 UTC | May 24, 14:05 UTC | 3h 35m |
| 2026-05-24 | JBU2951 | BOS → MCO | May 24, 10:27 UTC | May 25, 05:00 UTC | 18h 34m |
| 2026-05-23 | JBU264 | SEA → JFK | May 23, 07:28 UTC | May 23, 21:30 UTC | 14h 3m |
| 2026-05-22 | JBU380 | MBJ → JFK | May 22, 15:46 UTC | May 23, 12:20 UTC | 20h 34m |
| 2026-05-22 | JBU1179 | JFK → MBJ | May 22, 10:51 UTC | May 23, 10:00 UTC | 23h 9m |
| 2026-05-21 | JBU454 | PBI → JFK | May 21, 18:30 UTC | May 21, 23:20 UTC | 4h 50m |
| 2026-05-21 | JBU454 | PBI → JFK | May 21, 18:28 UTC | May 22, 18:00 UTC | 23h 33m |
| 2026-05-20 | JBU1584 | MCO → JFK | May 20, 14:55 UTC | May 20, 17:00 UTC | 2h 5m |
| 2026-05-20 | JBU1584 | MCO → JFK | May 20, 14:52 UTC | May 21, 09:10 UTC | 18h 19m |
| 2026-05-19 | JBU451 | BOS → MCO | May 19, 21:05 UTC | May 19, 23:30 UTC | 2h 25m |
| 2026-05-19 | JBU2252 | MCO → BOS | May 19, 16:25 UTC | May 19, 19:00 UTC | 2h 35m |
| 2026-05-19 | JBU851 | JFK → CUN | May 19, 11:50 UTC | May 19, 14:15 UTC | 2h 25m |
| 2026-05-18 | JBU1152 | MCO → BOS | May 18, 21:50 UTC | May 19, 00:25 UTC | 2h 35m |
| 2026-05-18 | JBU2251 | BOS → MCO | May 18, 16:50 UTC | May 18, 19:15 UTC | 2h 24m |
| 2026-05-18 | JBU776 | MSY → JFK | May 18, 11:30 UTC | May 18, 14:10 UTC | 2h 40m |
| 2026-05-17 | JBU1315 | BOS → BUF | May 17, 12:05 UTC | May 17, 15:01 UTC | 2h 55m |
| 2026-05-16 | JBU474 | LAX → BOS | May 16, 20:30 UTC | May 17, 00:40 UTC | 4h 10m |
| 2026-05-16 | JBU373 | BOS → AUA | May 16, 18:50 UTC | May 16, 19:05 UTC | 15m |
| 2026-05-16 | JBU373 | BOS → AUA | May 16, 14:31 UTC | May 16, 18:05 UTC | 3h 35m |
| 2026-05-15 | JBU2152 | MCO → BOS | May 15, 14:49 UTC | May 16, 04:35 UTC | 13h 46m |
| 2026-05-15 | JBU2152 | MCO → BOS | May 15, 14:50 UTC | May 15, 17:30 UTC | 2h 40m |
| 2026-05-14 | JBU1827 | EWR → MCO | May 14, 01:21 UTC | May 14, 03:55 UTC | 2h 35m |
| 2026-05-13 | JBU651 | BOS → MCO | May 13, 14:19 UTC | May 14, 03:55 UTC | 13h 37m |
| 2026-05-13 | JBU322 | PBI → BOS | May 13, 10:00 UTC | May 13, 12:40 UTC | 2h 40m |
| 2026-05-13 | JBU322 | PBI → BOS | May 13, 09:57 UTC | May 14, 03:55 UTC | 17h 59m |
| 2026-05-12 | JBU2321 | BOS → PBI | May 12, 22:40 UTC | May 13, 01:55 UTC | 3h 15m |
| 2026-05-12 | JBU466 | RSW → BOS | May 12, 14:50 UTC | May 12, 17:25 UTC | 2h 35m |
| 2026-05-11 | JBU466 | RSW → BOS | May 11, 14:40 UTC | May 12, 10:10 UTC | 19h 31m |
| 2026-05-11 | JBU474 | LAX → BOS | May 11, 00:30 UTC | May 11, 01:20 UTC | 50m |
| 2026-05-10 | JBU474 | LAX → BOS | May 10, 20:54 UTC | May 10, 21:14 UTC | 20m |
| 2026-05-10 | JBU474 | LAX → BOS | May 10, 20:54 UTC | May 11, 20:00 UTC | 23h 7m |
| 2026-05-10 | JBU373 | BOS → AUA | May 10, 14:59 UTC | May 10, 19:24 UTC | 4h 25m |
| 2026-05-10 | JBU690 | FLL → BOS | May 10, 10:15 UTC | May 10, 12:54 UTC | 2h 40m |
| 2026-05-09 | JBU369 | BOS → FLL | May 9, 22:20 UTC | May 10, 01:14 UTC | 2h 55m |
| 2026-05-09 | JBU910 | NAS → BOS | May 9, 16:05 UTC | May 9, 18:40 UTC | 2h 35m |
| 2026-05-09 | JBU909 | BOS → NAS | May 9, 11:10 UTC | May 9, 13:55 UTC | 2h 45m |
| 2026-05-08 | JBU42 | PBI → LGA | May 8, 12:10 UTC | May 8, 16:05 UTC | 3h 55m |
| 2026-05-08 | JBU661 | LGA → PBI | May 8, 03:09 UTC | May 8, 06:30 UTC | 3h 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 N998JE page for operator, model, and routing details .