sensors Mode-S transponder

AD3581

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N950JT · AIRBUS A-321 · operated by JETBLUE AIRWAYS CORP

Hex
AD3581
Octal
53232601
Decimal
11,351,425
Country
US
Tail
N950JT
Type
A321
Broadcasting now · callsign JBU2173 · 22,925 ft
Flights observed
144
Distinct callsigns
20
Country
US
Last broadcast
15h ago

Current position

AD3581 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD3581 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 JBU552 MCO → BOS May 29, 10:15 UTCMay 29, 21:35 UTC11h 21m
2026-05-28 JBU762 CUN → JFK May 28, 17:47 UTCMay 29, 16:15 UTC22h 29m
2026-05-28 JBU1347 DCA → SJU May 28, 15:50 UTCMay 28, 16:10 UTC20m
2026-05-28 JBU1347 DCA → SJU May 28, 12:45 UTCMay 28, 13:45 UTC1h 0m
2026-05-28 JBU1347 DCA → SJU May 28, 12:41 UTCMay 29, 12:15 UTC23h 34m
2026-05-27 JBU452 MCO → BOS May 27, 11:55 UTCMay 28, 00:50 UTC12h 55m
2026-05-26 JBU1008 JFK → BOS May 26, 16:17 UTCMay 27, 14:15 UTC21h 58m
2026-05-26 JBU1008 JFK → BOS May 26, 11:15 UTCMay 26, 19:55 UTC8h 40m
2026-05-25 JBU279 LAS → LGB May 25, 14:45 UTCMay 26, 11:50 UTC21h 5m
2026-05-25 JBU162 SMF → JFK May 25, 07:06 UTCMay 25, 22:55 UTC15h 49m
2026-05-25 JBU162 SMF → JFK May 25, 07:10 UTCMay 25, 12:05 UTC4h 55m
2026-05-25 JBU161 JFK → SMF May 25, 01:55 UTCMay 25, 05:10 UTC3h 15m
2026-05-24 JBU161 JFK → SMF May 24, 23:40 UTCMay 24, 23:46 UTC6m
2026-05-24 JBU169 BDL → FLL May 24, 13:00 UTCMay 24, 21:35 UTC8h 35m
2026-05-24 JBU1759 JFK → KIN May 24, 00:15 UTCMay 24, 02:35 UTC2h 20m
2026-05-24 JBU1759 JFK → KIN May 24, 00:12 UTCMay 24, 21:35 UTC21h 23m
2026-05-23 JBU1901 BUF → JFK May 23, 13:55 UTCMay 23, 14:55 UTC1h 0m
2026-05-23 JBU1602 JFK → BUF May 23, 12:00 UTCMay 23, 12:55 UTC55m
2026-05-22 JBU989 JFK → PUJ May 22, 11:35 UTCMay 22, 19:50 UTC8h 15m
2026-05-21 JBU2917 BOS → JFK May 21, 09:34 UTCMay 21, 23:10 UTC13h 37m
2026-05-20 JBU2896 PUJ → BOS May 20, 17:06 UTCMay 21, 15:40 UTC22h 35m
2026-05-20 JBU2895 BOS → PUJ May 20, 11:44 UTCMay 21, 10:15 UTC22h 32m
2026-05-20 JBU2895 BOS → PUJ May 20, 11:45 UTCMay 20, 13:40 UTC1h 55m
2026-05-19 JBU574 GND → BOS May 19, 23:45 UTCMay 20, 00:25 UTC40m
2026-05-19 JBU574 GND → BOS May 19, 18:40 UTCMay 19, 22:35 UTC3h 55m
2026-05-19 JBU574 GND → BOS May 19, 17:50 UTCMay 19, 18:00 UTC10m
2026-05-19 JBU2173 BOS → AUA May 19, 16:00 UTCMay 19, 16:20 UTC20m
2026-05-18 JBU1296 BUF → BOS May 18, 20:30 UTCMay 19, 18:00 UTC21h 30m
2026-05-18 JBU661 LGA → PBI May 18, 06:20 UTCMay 18, 06:40 UTC20m
2026-05-18 JBU661 LGA → PBI May 18, 02:50 UTCMay 19, 01:00 UTC22h 10m
2026-05-18 JBU661 LGA → PBI May 18, 02:50 UTCMay 18, 04:05 UTC1h 15m
2026-05-17 JBU1296 BUF → BOS May 17, 14:45 UTCMay 17, 23:50 UTC9h 5m
2026-05-17 JBU42 PBI → LGA May 17, 10:50 UTCMay 17, 13:01 UTC2h 10m
2026-05-17 JBU42 PBI → LGA May 17, 09:20 UTCMay 17, 09:35 UTC15m
2026-05-16 JBU1347 DCA → SJU May 16, 12:07 UTCMay 17, 09:35 UTC21h 29m
2026-05-15 JBU1348 SJU → DCA May 15, 22:35 UTCMay 16, 22:15 UTC23h 40m
2026-05-15 JBU552 MCO → BOS May 15, 11:47 UTCMay 16, 03:00 UTC15h 13m
2026-05-15 JBU1827 EWR → MCO May 15, 01:52 UTCMay 15, 22:50 UTC20h 58m
2026-05-14 JBU1483 JFK → MCO May 14, 11:20 UTCMay 14, 13:40 UTC2h 20m
2026-05-14 JBU1483 JFK → MCO May 14, 11:16 UTCMay 15, 04:15 UTC17h 0m
2026-05-14 JBU1329 GUA → JFK May 14, 04:55 UTCMay 14, 06:55 UTC2h 0m
2026-05-11 JBU2896 PUJ → BOS May 11, 17:00 UTCMay 12, 06:50 UTC13h 51m
2026-05-11 JBU2895 BOS → PUJ May 11, 11:45 UTCMay 11, 14:55 UTC3h 10m
2026-05-10 JBU1152 MCO → BOS May 10, 22:09 UTCMay 11, 00:30 UTC2h 20m
2026-05-09 JBU392 TPA → BOS May 9, 23:20 UTCMay 10, 22:15 UTC22h 55m
2026-05-09 JBU392 TPA → BOS May 9, 23:20 UTCMay 10, 01:55 UTC2h 35m
2026-05-09 JBU391 BOS → TPA May 9, 18:55 UTCMay 9, 21:50 UTC2h 55m
2026-05-09 JBU1830 SDQ → BOS May 9, 02:35 UTCMay 9, 12:55 UTC10h 20m
2026-05-08 JBU774 LAS → JFK May 8, 23:00 UTCMay 9, 00:05 UTC1h 5m
2026-05-08 JBU774 LAS → JFK May 8, 19:35 UTCMay 8, 19:50 UTC15m

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 N950JT page for operator, model, and routing details .

Mode-S AD3581 frequently asked

What is Mode-S code AD3581?
AD3581 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N950JT.
Where is Mode-S AD3581 registered?
Mode-S code AD3581 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AD3581 broadcasting right now?
Yes. Mode-S AD3581 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD3581, octal 53232601, decimal 11,351,425.
What flights does AD3581 operate?
Mode-S AD3581 has broadcast 20 distinct callsigns, including JBU774, JBU473, JBU661, JBU1829, JBU162.