sensors Mode-S transponder

AD8FA4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N973JT · AIRBUS A-321 · operated by JETBLUE AIRWAYS CORP

Hex
AD8FA4
Octal
53307644
Decimal
11,374,500
Country
US
Tail
N973JT
Type
A321
No current signal · last broadcast 6h ago
Flights observed
101
Distinct callsigns
20
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S AD8FA4.

Country allocation

The ICAO 24-bit address AD8FA4 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
JBU909 JetBlue Airways 5 2026-04-25
JBU509 JetBlue Airways 5 2026-05-18
JBU2210 JetBlue Airways 5 2026-05-20
JBU22 JetBlue Airways 4 2026-05-29
JBU910 JetBlue Airways 3 2026-04-25
JBU91 JetBlue Airways 3 2026-04-15
JBU769 - 3 2026-04-14
JBU761 JetBlue Airways 3 2026-05-30
JBU470 JetBlue Airways 3 2026-04-18
JBU269 JetBlue Airways 3 2026-04-17
JBU2661 JetBlue Airways 3 2026-04-13
JBU162 JetBlue Airways 3 2026-04-21
JBU1434 JetBlue Airways 3 2026-05-28
JBU8616 JetBlue Airways 2 2026-05-13
JBU721 JetBlue Airways 2 2026-04-16
JBU592 - 2 2026-04-15
JBU551 JetBlue Airways 2 2026-04-26
JBU352 JetBlue Airways 2 2026-04-23
JBU2903 JetBlue Airways 2 2026-05-26
JBU2851 JetBlue Airways 2 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 JBU761 LGA → PBI May 30, 00:55 UTCMay 30, 01:20 UTC25m
2026-05-29 JBU761 LGA → PBI May 29, 22:00 UTCMay 29, 23:35 UTC1h 35m
2026-05-29 JBU761 LGA → PBI May 29, 21:56 UTCMay 30, 01:20 UTC3h 25m
2026-05-29 JBU22 MBJ → MCO May 29, 17:15 UTCMay 29, 19:55 UTC2h 40m
2026-05-29 JBU21 MCO → MBJ May 29, 13:00 UTCMay 29, 15:45 UTC2h 45m
2026-05-28 JBU1434 SJU → MCO May 28, 10:50 UTCMay 28, 11:40 UTC50m
2026-05-28 JBU1434 SJU → MCO May 28, 09:10 UTCMay 28, 09:20 UTC10m
2026-05-28 JBU1434 SJU → MCO May 28, 09:04 UTCMay 29, 03:00 UTC17h 56m
2026-05-27 JBU2851 FLL → UIO May 27, 22:25 UTCMay 27, 22:35 UTC10m
2026-05-27 JBU2851 FLL → UIO May 27, 19:50 UTCMay 27, 20:50 UTC1h 0m
2026-05-27 JBU791 BOS → TPA May 27, 15:20 UTCMay 27, 18:15 UTC2h 55m
2026-05-27 JBU1192 TPA → BOS May 27, 11:05 UTCMay 27, 13:40 UTC2h 35m
2026-05-26 JBU452 MCO → BOS May 26, 11:54 UTCMay 26, 14:35 UTC2h 40m
2026-05-26 JBU2903 JFK → SJU May 26, 02:29 UTCMay 26, 02:49 UTC20m
2026-05-25 JBU2903 JFK → SJU May 25, 23:35 UTCMay 26, 00:09 UTC35m
2026-05-25 JBU1008 JFK → BOS May 25, 11:20 UTCMay 25, 19:59 UTC8h 39m
2026-05-24 JBU58 MCO → JFK May 24, 20:25 UTCMay 24, 20:40 UTC15m
2026-05-24 JBU57 JFK → AUA May 24, 14:25 UTCMay 24, 18:25 UTC4h 0m
2026-05-23 JBU263 JFK → SEA May 23, 22:08 UTCMay 24, 20:40 UTC22h 32m
2026-05-23 JBU263 JFK → SEA May 23, 22:10 UTCMay 24, 03:35 UTC5h 25m
2026-05-23 JBU869 JFK → DEN May 23, 10:10 UTCMay 23, 18:40 UTC8h 30m
2026-05-23 JBU2184 RDU → BOS May 23, 01:30 UTCMay 23, 03:35 UTC2h 5m
2026-05-22 JBU483 EWR → SFO May 22, 21:15 UTCMay 22, 23:20 UTC2h 5m
2026-05-22 JBU710 JAX → BOS May 22, 10:15 UTCMay 22, 18:45 UTC8h 30m
2026-05-21 JBU268 PUJ → JFK May 21, 15:20 UTCMay 22, 10:55 UTC19h 35m
2026-05-20 JBU2210 JAX → BOS May 20, 19:46 UTCMay 21, 18:50 UTC23h 5m
2026-05-20 JBU264 SEA → JFK May 20, 07:04 UTCMay 21, 04:10 UTC21h 7m
2026-05-20 JBU264 SEA → JFK May 20, 07:05 UTCMay 20, 11:50 UTC4h 45m
2026-05-19 JBU151 JFK → TPA May 19, 10:09 UTCMay 20, 09:00 UTC22h 52m
2026-05-18 JBU2210 JAX → BOS May 18, 20:08 UTCMay 19, 19:00 UTC22h 52m
2026-05-18 JBU509 BOS → SEA May 18, 14:55 UTCMay 18, 15:55 UTC1h 0m
2026-05-18 JBU509 BOS → SEA May 18, 14:53 UTCMay 19, 13:00 UTC22h 7m
2026-05-17 JBU509 BOS → SEA May 17, 15:10 UTCMay 18, 15:00 UTC23h 51m
2026-05-16 JBU2210 JAX → BOS May 16, 20:20 UTCMay 17, 15:45 UTC19h 26m
2026-05-16 JBU2210 JAX → BOS May 16, 14:35 UTCMay 17, 00:10 UTC9h 35m
2026-05-15 JBU1584 MCO → JFK May 15, 15:07 UTCMay 16, 15:01 UTC23h 54m
2026-05-14 JBU2210 JAX → BOS May 14, 20:51 UTCMay 15, 17:20 UTC20h 29m
2026-05-14 JBU509 BOS → SEA May 14, 15:15 UTCMay 15, 15:00 UTC23h 45m
2026-05-14 JBU509 BOS → SEA May 14, 15:15 UTCMay 14, 17:25 UTC2h 10m
2026-05-13 JBU8616 SAL → BOS May 13, 16:40 UTCMay 13, 21:00 UTC4h 20m
2026-05-13 JBU8616 SAL → BOS May 13, 16:27 UTCMay 14, 15:01 UTC22h 34m
2026-05-01 JBU8452 BDL → BOS May 1, 18:35 UTCMay 1, 23:05 UTC4h 30m
2026-04-28 JBU2151 BOS → MCO Apr 28, 15:50 UTCApr 28, 23:20 UTC7h 30m
2026-04-27 JBU274 AUA → BOS Apr 27, 20:24 UTCApr 28, 18:40 UTC22h 16m
2026-04-27 JBU1323 BOS → PBI Apr 27, 03:06 UTCApr 28, 01:05 UTC21h 59m
2026-04-26 JBU652 RDU → BOS Apr 26, 21:56 UTCApr 27, 20:40 UTC22h 44m
2026-04-26 JBU551 BOS → MCO Apr 26, 17:38 UTCApr 27, 15:15 UTC21h 38m
2026-04-26 JBU551 BOS → MCO Apr 26, 17:40 UTCApr 26, 20:20 UTC2h 40m
2026-04-26 JBU870 KIN → JFK Apr 26, 10:35 UTCApr 26, 13:30 UTC2h 55m
2026-04-25 JBU910 NAS → BOS Apr 25, 15:35 UTCApr 26, 13:35 UTC22h 0m

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 N973JT page for operator, model, and routing details .

Mode-S AD8FA4 frequently asked

What is Mode-S code AD8FA4?
AD8FA4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N973JT.
Where is Mode-S AD8FA4 registered?
Mode-S code AD8FA4 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 AD8FA4 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD8FA4, octal 53307644, decimal 11,374,500.
What flights does AD8FA4 operate?
Mode-S AD8FA4 has broadcast 20 distinct callsigns, including JBU909, JBU509, JBU2210, JBU22, JBU910.