Apparatus

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sensors Mode-S transponder

AD2F71

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N949JT · AIRBUS A-321 · operated by JETBLUE AIRWAYS CORP

Hex
AD2F71
Octal
53227561
Decimal
11,349,873
Country
US
Tail
N949JT
Type
A321
Broadcasting now · callsign JBU1457 · 33,000 ft
Flights observed
292
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Current position

AD2F71 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AD2F71 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
JBU2173 JetBlue Airways 11 2026-07-24
JBU574 - 10 2026-07-21
JBU397 JetBlue Airways 7 2026-07-26
JBU373 - 7 2026-07-22
JBU1347 - 6 2026-07-03
JBU709 JetBlue Airways 5 2026-06-14
JBU904 - 4 2026-07-04
JBU803 - 4 2026-06-24
JBU70 JetBlue Airways 4 2026-04-24
JBU395 JetBlue Airways 4 2026-07-23
JBU303 JetBlue Airways 4 2026-06-01
JBU2904 - 4 2026-06-25
JBU268 JetBlue Airways 4 2026-06-28
JBU1922 JetBlue Airways 4 2026-04-19
JBU1830 - 4 2026-06-14
JBU165 JetBlue Airways 4 2026-05-20
JBU1348 - 4 2026-07-03
JBU1323 JetBlue Airways 4 2026-07-22
JBU69 JetBlue Airways 3 2026-04-24
JBU58 JetBlue Airways 3 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JBU398 SEA → BOS Jul 26, 19:05 UTCJul 26, 22:15 UTC3h 10m
2026-07-26 JBU397 BOS → ATL Jul 26, 11:25 UTCJul 26, 17:00 UTC5h 35m
2026-07-25 JBU337 JFK → STI Jul 25, 18:55 UTCJul 25, 20:30 UTC1h 35m
2026-07-25 JBU337 JFK → STI Jul 25, 18:55 UTCJul 26, 17:10 UTC22h 16m
2026-07-25 JBU2110 SDQ → JFK Jul 25, 00:45 UTCJul 25, 15:05 UTC14h 20m
2026-07-24 JBU2173 BOS → AUA Jul 24, 15:15 UTCJul 24, 15:35 UTC20m
2026-07-24 JBU2173 BOS → AUA Jul 24, 11:25 UTCJul 24, 14:45 UTC3h 20m
2026-07-24 JBU2173 BOS → AUA Jul 24, 11:23 UTCJul 25, 01:35 UTC14h 12m
2026-07-23 JBU395 HPN → MCO Jul 23, 14:25 UTCJul 24, 12:35 UTC22h 10m
2026-07-23 JBU395 HPN → MCO Jul 23, 14:25 UTCJul 23, 20:10 UTC5h 45m
2026-07-22 JBU373 BOS → AUA Jul 22, 16:47 UTCJul 23, 16:15 UTC23h 28m
2026-07-22 JBU1323 BOS → PBI Jul 22, 03:10 UTCJul 23, 02:15 UTC23h 5m
2026-07-21 JBU574 - Jul 21, 18:15 UTCJul 21, 21:55 UTC3h 40m
2026-07-21 JBU574 - Jul 21, 17:25 UTCJul 21, 17:35 UTC10m
2026-07-21 JBU574 AUA → BOS Jul 21, 17:20 UTCJul 22, 14:05 UTC20h 45m
2026-07-21 JBU2173 BOS → AUA Jul 21, 15:25 UTCJul 21, 15:40 UTC15m
2026-07-21 JBU2173 BOS → AUA Jul 21, 11:20 UTCJul 21, 14:45 UTC3h 25m
2026-07-20 JBU8424 LAX → JFK Jul 20, 11:07 UTCJul 21, 04:55 UTC17h 48m
2026-07-20 JBU8424 LAX → JFK Jul 20, 04:30 UTCJul 20, 14:55 UTC10h 25m
2026-07-19 JBU2829 JFK → RSW Jul 19, 02:45 UTCJul 19, 15:15 UTC12h 30m
2026-07-18 JBU574 - Jul 18, 23:00 UTCJul 19, 00:05 UTC1h 5m
2026-07-18 JBU574 - Jul 18, 19:50 UTCJul 18, 20:00 UTC10m
2026-07-18 JBU574 AUA → BOS Jul 18, 19:46 UTCJul 19, 15:20 UTC19h 35m
2026-07-18 JBU2173 - Jul 18, 17:15 UTCJul 18, 17:35 UTC20m
2026-07-18 JBU2173 - Jul 18, 13:25 UTCJul 18, 14:20 UTC55m
2026-07-18 JBU330 - Jul 18, 01:50 UTCJul 18, 02:35 UTC45m
2026-07-17 JBU1829 - Jul 17, 17:44 UTCJul 17, 18:29 UTC45m
2026-07-17 JBU724 STI → BOS Jul 17, 00:10 UTCJul 17, 13:00 UTC12h 50m
2026-07-16 JBU310 SDQ → JFK Jul 16, 08:17 UTCJul 17, 00:50 UTC16h 33m
2026-07-15 JBU361 JFK → BGI Jul 15, 13:03 UTCJul 16, 11:45 UTC22h 42m
2026-07-15 JBU2536 STI → JFK Jul 15, 07:36 UTCJul 16, 03:00 UTC19h 24m
2026-07-15 JBU937 JFK → JFK Jul 15, 02:45 UTCJul 15, 10:40 UTC7h 55m
2026-07-14 JBU2018 - Jul 14, 19:25 UTCJul 15, 00:00 UTC4h 34m
2026-07-14 JBU117 - Jul 14, 16:50 UTCJul 14, 17:00 UTC10m
2026-07-14 JBU117 - Jul 14, 12:50 UTCJul 14, 13:25 UTC35m
2026-07-13 JBU2023 BOS → STI Jul 13, 18:08 UTCJul 14, 13:25 UTC19h 18m
2026-07-13 JBU937 JFK → STI Jul 13, 01:30 UTCJul 13, 19:05 UTC17h 36m
2026-07-12 JBU1858 AUA → JFK Jul 12, 17:46 UTCJul 13, 16:05 UTC22h 20m
2026-07-12 JBU757 JFK → AUA Jul 12, 11:51 UTCJul 13, 02:15 UTC14h 25m
2026-07-11 JBU850 STI → JFK Jul 11, 21:46 UTCJul 12, 18:01 UTC20h 15m
2026-07-11 JBU1323 BOS → STI Jul 11, 02:31 UTCJul 12, 01:00 UTC22h 30m
2026-07-11 JBU1323 - Jul 11, 02:35 UTCJul 11, 03:35 UTC1h 0m
2026-07-10 JBU398 SEA → BOS Jul 10, 19:20 UTCJul 11, 00:10 UTC4h 50m
2026-07-10 JBU397 BOS → SEA Jul 10, 11:30 UTCJul 10, 17:00 UTC5h 30m
2026-07-09 JBU396 PDX → BOS Jul 9, 21:40 UTCJul 10, 02:25 UTC4h 45m
2026-07-09 JBU395 BOS → PDX Jul 9, 14:15 UTCJul 9, 19:45 UTC5h 30m
2026-07-08 JBU474 AUA → BOS Jul 8, 21:24 UTCJul 9, 19:45 UTC22h 22m
2026-07-08 JBU373 - Jul 8, 19:10 UTCJul 8, 19:30 UTC20m
2026-07-08 JBU373 BOS → AUA Jul 8, 14:55 UTCJul 9, 14:15 UTC23h 20m
2026-07-08 JBU373 - Jul 8, 14:55 UTCJul 8, 18:35 UTC3h 40m

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 N949JT page for operator, model, and routing details .

Mode-S AD2F71 frequently asked

What is Mode-S code AD2F71?
AD2F71 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N949JT.
Where is Mode-S AD2F71 registered?
Mode-S code AD2F71 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 AD2F71 broadcasting right now?
Yes. Mode-S AD2F71 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD2F71, octal 53227561, decimal 11,349,873.
What flights does AD2F71 operate?
Mode-S AD2F71 has broadcast 20 distinct callsigns, including JBU2173, JBU574, JBU397, JBU373, JBU1347.