Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A4B6B6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N4022J · AIRBUS A-321neo · operated by JETBLUE AIRWAYS CORP

Hex
A4B6B6
Octal
51133266
Decimal
10,794,678
Country
US
Tail
N4022J
Type
A21N
Broadcasting now · callsign JBU2260 · 7,050 ft
Flights observed
238
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 16:25 UTC

Current position

A4B6B6 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A4B6B6 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
JBU1107 JetBlue Airways 17 2026-07-24
JBU2220 JetBlue Airways 15 2026-07-25
JBU32 - 13 2026-07-17
JBU20 JetBlue Airways 13 2026-07-23
JBU1407 JetBlue Airways 13 2026-07-26
JBU7 JetBlue Airways 12 2026-07-23
JBU31 - 12 2026-07-17
JBU2261 - 12 2026-07-10
JBU1408 - 12 2026-07-12
JBU332 - 11 2026-07-01
JBU331 JetBlue Airways 11 2026-06-30
JBU33 JetBlue Airways 11 2026-07-22
JBU2260 - 11 2026-06-19
JBU1620 JetBlue Airways 10 2026-07-20
JBU34 JetBlue Airways 7 2026-07-26
JBU323 JetBlue Airways 7 2026-04-16
JBU2124 JetBlue Airways 5 2026-04-17
JBU524 JetBlue Airways 4 2026-04-15
JBU1621 JetBlue Airways 4 2026-07-21
JBU1515 JetBlue Airways 4 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JBU34 SFO → BOS Jul 26, 09:16 UTCJul 26, 16:25 UTC7h 10m
2026-07-26 JBU34 SFO → BOS Jul 26, 09:16 UTCJul 26, 16:25 UTC7h 10m
2026-07-26 JBU1407 JFK → CDG Jul 26, 00:08 UTCJul 26, 16:25 UTC16h 18m
2026-07-26 JBU1407 JFK → CDG Jul 26, 00:10 UTCJul 26, 07:00 UTC6h 51m
2026-07-25 JBU2220 LHR → JFK Jul 25, 07:25 UTCJul 25, 08:35 UTC1h 10m
2026-07-25 JBU2220 LHR → JFK Jul 25, 07:24 UTCJul 26, 05:30 UTC22h 6m
2026-07-25 JBU2220 LHR → JFK Jul 25, 07:24 UTCJul 26, 05:30 UTC22h 6m
2026-07-24 JBU1107 JFK → LHR Jul 24, 13:15 UTCJul 24, 19:30 UTC6h 15m
2026-07-23 JBU20 LHR → JFK Jul 23, 12:40 UTCJul 23, 19:45 UTC7h 5m
2026-07-23 JBU7 JFK → LHR Jul 23, 03:10 UTCJul 23, 10:00 UTC6h 50m
2026-07-22 JBU33 BOS → SFO Jul 22, 02:15 UTCJul 22, 03:35 UTC1h 20m
2026-07-22 JBU33 BOS → SFO Jul 22, 02:14 UTCJul 22, 19:15 UTC17h 1m
2026-07-21 JBU1621 LHR → BOS Jul 21, 08:15 UTCJul 21, 15:10 UTC6h 55m
2026-07-20 JBU1620 BOS → LHR Jul 20, 23:20 UTCJul 21, 05:25 UTC6h 4m
2026-07-20 JBU8034 SJU → MCO Jul 20, 12:45 UTCJul 20, 20:00 UTC7h 15m
2026-07-19 JBU1407 - Jul 19, 04:15 UTCJul 19, 11:05 UTC6h 50m
2026-07-17 JBU1620 BOS → LHR Jul 17, 23:20 UTCJul 18, 15:15 UTC15h 56m
2026-07-17 JBU32 - Jul 17, 09:50 UTCJul 17, 11:20 UTC1h 30m
2026-07-17 JBU32 AMS → BOS Jul 17, 09:45 UTCJul 18, 09:20 UTC23h 36m
2026-07-17 JBU31 BOS → AMS Jul 17, 00:40 UTCJul 17, 07:20 UTC6h 40m
2026-07-16 JBU1407 JFK → CDG Jul 16, 00:30 UTCJul 16, 07:35 UTC7h 5m
2026-07-16 JBU1407 JFK → CDG Jul 16, 00:27 UTCJul 16, 17:45 UTC17h 18m
2026-07-15 JBU2220 - Jul 15, 08:10 UTCJul 15, 15:35 UTC7h 25m
2026-07-14 JBU1107 JFK → LHR Jul 14, 12:55 UTCJul 14, 19:40 UTC6h 45m
2026-07-14 JBU1107 JFK → LHR Jul 14, 12:54 UTCJul 15, 09:25 UTC20h 31m
2026-07-13 JBU20 - Jul 13, 11:35 UTCJul 13, 18:35 UTC7h 0m
2026-07-13 JBU7 JFK → LHR Jul 13, 01:15 UTCJul 13, 08:01 UTC6h 45m
2026-07-12 JBU1408 CDG → JFK Jul 12, 10:53 UTCJul 13, 08:01 UTC21h 8m
2026-07-12 JBU33 BOS → CDG Jul 12, 01:35 UTCJul 13, 01:30 UTC23h 56m
2026-07-12 JBU33 - Jul 12, 01:35 UTCJul 12, 02:55 UTC1h 20m
2026-07-10 JBU1620 BOS → LHR Jul 10, 23:13 UTCJul 11, 15:00 UTC15h 48m
2026-07-10 JBU1620 - Jul 10, 23:15 UTCJul 11, 05:31 UTC6h 15m
2026-07-10 JBU2261 BOS → MAD Jul 10, 02:54 UTCJul 11, 00:20 UTC21h 27m
2026-07-10 JBU2261 BOS → MAD Jul 10, 02:55 UTCJul 10, 09:55 UTC7h 0m
2026-07-09 JBU34 - Jul 9, 09:25 UTCJul 9, 10:55 UTC1h 30m
2026-07-09 JBU34 CDG → BOS Jul 9, 09:20 UTCJul 10, 04:20 UTC19h 0m
2026-07-09 JBU1407 - Jul 9, 00:20 UTCJul 9, 07:25 UTC7h 5m
2026-07-08 JBU2220 - Jul 8, 07:25 UTCJul 8, 14:35 UTC7h 10m
2026-07-07 JBU1107 JFK → LHR Jul 7, 13:07 UTCJul 8, 08:45 UTC19h 39m
2026-07-07 JBU1107 JFK → LHR Jul 7, 13:10 UTCJul 7, 19:35 UTC6h 25m
2026-07-06 JBU20 LHR → JFK Jul 6, 11:40 UTCJul 6, 19:15 UTC7h 35m
2026-07-06 JBU7 JFK → LHR Jul 6, 02:15 UTCJul 6, 08:35 UTC6h 20m
2026-07-05 JBU2220 LHR → JFK Jul 5, 07:35 UTCJul 5, 15:10 UTC7h 35m
2026-07-04 JBU1107 JFK → LHR Jul 4, 13:42 UTCJul 5, 09:00 UTC19h 19m
2026-07-04 JBU1107 JFK → LHR Jul 4, 13:45 UTCJul 4, 19:30 UTC5h 45m
2026-07-03 JBU20 LHR → JFK Jul 3, 11:21 UTCJul 3, 19:05 UTC7h 45m
2026-07-03 JBU7 JFK → LHR Jul 3, 01:41 UTCJul 3, 19:05 UTC17h 25m
2026-07-02 JBU1408 MIA → EWR Jul 2, 11:07 UTCJul 3, 08:25 UTC21h 19m
2026-07-02 JBU1408 MIA → EWR Jul 2, 11:07 UTCJul 3, 08:25 UTC21h 19m
2026-07-02 JBU33 BOS → CDG Jul 2, 02:34 UTCJul 3, 01:30 UTC22h 56m

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 N4022J page for operator, model, and routing details .

Mode-S A4B6B6 frequently asked

What is Mode-S code A4B6B6?
A4B6B6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N4022J.
Where is Mode-S A4B6B6 registered?
Mode-S code A4B6B6 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 A4B6B6 broadcasting right now?
Yes. Mode-S A4B6B6 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4B6B6, octal 51133266, decimal 10,794,678.
What flights does A4B6B6 operate?
Mode-S A4B6B6 has broadcast 20 distinct callsigns, including JBU1107, JBU2220, JBU32, JBU20, JBU1407.