Apparatus

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sensors Mode-S transponder

AA8B40

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N779JB · AIRBUS A-320 · operated by JETBLUE AIRWAYS CORP

Hex
AA8B40
Octal
52505500
Decimal
11,176,768
Country
US
Tail
N779JB
Type
A320
No current signal · last broadcast Jul 26, 20:40 UTC
Flights observed
311
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:40 UTC

Last known position

Most recent position reported by Mode-S AA8B40.

Country allocation

The ICAO 24-bit address AA8B40 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
JBU813 JetBlue Airways 5 2026-04-23
JBU936 JetBlue Airways 4 2026-07-26
JBU891 - 4 2026-07-18
JBU39 JetBlue Airways 4 2026-04-25
JBU326 - 4 2026-06-16
JBU2389 JetBlue Airways 4 2026-07-26
JBU791 JetBlue Airways 3 2026-05-19
JBU571 JetBlue Airways 3 2026-06-17
JBU38 JetBlue Airways 3 2026-04-19
JBU306 - 3 2026-07-06
JBU2602 JetBlue Airways 3 2026-05-04
JBU2421 - 3 2026-07-17
JBU2282 JetBlue Airways 3 2026-04-25
JBU2028 - 3 2026-07-04
JBU192 JetBlue Airways 3 2026-05-20
JBU1698 - 3 2026-06-25
JBU164 - 3 2026-07-16
JBU163 - 3 2026-07-16
JBU1529 JetBlue Airways 3 2026-05-21
JBU1453 - 3 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JBU435 BOS → DCA Jul 26, 20:20 UTCJul 26, 20:40 UTC20m
2026-07-26 JBU936 SJU → STT Jul 26, 18:55 UTCJul 26, 19:05 UTC10m
2026-07-26 JBU1638 SDQ → SJU Jul 26, 16:55 UTCJul 26, 17:05 UTC10m
2026-07-26 JBU2537 SJU → SDQ Jul 26, 14:15 UTCJul 26, 14:25 UTC10m
2026-07-26 JBU2389 EWR → SJU Jul 26, 11:15 UTCJul 26, 11:40 UTC25m
2026-07-26 JBU2389 EWR → SJU Jul 26, 08:15 UTCJul 26, 09:00 UTC45m
2026-07-26 JBU144 PBI → EWR Jul 26, 00:35 UTCJul 26, 02:55 UTC2h 20m
2026-07-25 JBU193 JFK → MCO Jul 25, 03:59 UTCJul 26, 02:00 UTC22h 1m
2026-07-24 JBU435 BOS → DCA Jul 24, 20:30 UTCJul 24, 20:50 UTC20m
2026-07-24 JBU936 SJU → STT Jul 24, 19:00 UTCJul 24, 19:10 UTC10m
2026-07-24 JBU936 SJU → STT Jul 24, 18:58 UTCJul 25, 16:30 UTC21h 32m
2026-07-24 JBU1638 SDQ → SJU Jul 24, 17:05 UTCJul 24, 17:15 UTC10m
2026-07-24 JBU2537 SJU → SDQ Jul 24, 14:25 UTCJul 24, 14:35 UTC10m
2026-07-24 JBU2389 EWR → SJU Jul 24, 05:35 UTCJul 24, 05:55 UTC20m
2026-07-24 JBU2389 EWR → SJU Jul 24, 02:25 UTCJul 24, 03:15 UTC50m
2026-07-23 JBU144 PBI → EWR Jul 23, 22:20 UTCJul 24, 00:40 UTC2h 20m
2026-07-23 JBU143 EWR → PBI Jul 23, 18:40 UTCJul 23, 21:00 UTC2h 20m
2026-07-22 JBU106 FLL → EWR Jul 22, 23:00 UTCJul 23, 01:30 UTC2h 30m
2026-07-22 JBU106 FLL → EWR Jul 22, 22:55 UTCJul 23, 21:00 UTC22h 5m
2026-07-22 JBU2780 IAH → FLL Jul 22, 18:15 UTCJul 22, 20:35 UTC2h 20m
2026-07-22 JBU2179 - Jul 22, 14:20 UTCJul 22, 16:35 UTC2h 15m
2026-07-22 JBU754 PLS → BOS Jul 22, 11:35 UTCJul 22, 12:10 UTC35m
2026-07-21 JBU1778 LAS → BOS Jul 21, 16:40 UTCJul 22, 16:00 UTC23h 20m
2026-07-21 JBU699 LGA → MCO Jul 21, 03:32 UTCJul 22, 02:00 UTC22h 28m
2026-07-20 JBU495 HPN → MCO Jul 20, 18:38 UTCJul 21, 17:20 UTC22h 42m
2026-07-20 JBU8376 PVD → MCO Jul 20, 11:08 UTCJul 21, 05:45 UTC18h 37m
2026-07-19 JBU1196 FLL → PVD Jul 19, 23:50 UTCJul 20, 21:40 UTC21h 51m
2026-07-19 JBU1376 KIN → FLL Jul 19, 20:27 UTCJul 20, 20:00 UTC23h 34m
2026-07-19 JBU1376 KIN → FLL Jul 19, 17:30 UTCJul 19, 22:00 UTC4h 30m
2026-07-18 JBU891 BOS → TPA Jul 18, 10:45 UTCJul 19, 04:05 UTC17h 21m
2026-07-18 JBU891 BOS → TPA Jul 18, 10:45 UTCJul 18, 13:20 UTC2h 35m
2026-07-17 JBU974 - Jul 17, 22:55 UTCJul 18, 02:45 UTC3h 50m
2026-07-17 JBU974 - Jul 17, 22:05 UTCJul 17, 22:20 UTC15m
2026-07-17 JBU773 - Jul 17, 19:55 UTCJul 17, 20:15 UTC20m
2026-07-17 JBU2421 - Jul 17, 02:05 UTCJul 17, 04:59 UTC2h 55m
2026-07-17 JBU2421 - Jul 17, 02:02 UTCJul 17, 23:20 UTC21h 18m
2026-07-17 JBU2421 BOS → BOS Jul 17, 01:09 UTCJul 17, 01:15 UTC5m
2026-07-16 JBU618 JFK → BOS Jul 16, 20:49 UTCJul 16, 21:30 UTC40m
2026-07-16 JBU164 - Jul 16, 16:19 UTCJul 16, 18:55 UTC2h 35m
2026-07-16 JBU163 - Jul 16, 12:40 UTCJul 16, 15:10 UTC2h 30m
2026-07-16 JBU163 - Jul 16, 10:10 UTCJul 16, 10:45 UTC35m
2026-07-16 JBU1128 JFK → PVD Jul 16, 03:05 UTCJul 16, 03:40 UTC35m
2026-07-16 JBU1112 - Jul 16, 00:25 UTCJul 16, 01:25 UTC1h 0m
2026-07-15 JBU1111 - Jul 15, 13:40 UTCJul 15, 16:55 UTC3h 15m
2026-07-13 JBU2510 SDQ → JFK Jul 13, 20:05 UTCJul 14, 12:45 UTC16h 41m
2026-07-13 JBU1009 - Jul 13, 14:35 UTCJul 13, 15:50 UTC1h 15m
2026-07-13 JBU1009 JFK → SDQ Jul 13, 14:31 UTCJul 14, 12:45 UTC22h 15m
2026-07-13 JBU1678 - Jul 13, 10:20 UTCJul 13, 12:15 UTC1h 55m
2026-07-12 JBU1383 - Jul 12, 16:20 UTCJul 12, 16:25 UTC5m
2026-07-12 JBU1380 - Jul 12, 14:10 UTCJul 12, 15:40 UTC1h 30m

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 N779JB page for operator, model, and routing details .

Mode-S AA8B40 frequently asked

What is Mode-S code AA8B40?
AA8B40 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N779JB.
Where is Mode-S AA8B40 registered?
Mode-S code AA8B40 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 AA8B40 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA8B40, octal 52505500, decimal 11,176,768.
What flights does AA8B40 operate?
Mode-S AA8B40 has broadcast 20 distinct callsigns, including JBU813, JBU936, JBU891, JBU39, JBU326.