sensors Mode-S transponder

A33CA9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N3077J · AIRBUS A220-300 · operated by JETBLUE AIRWAYS CORP

Hex
A33CA9
Octal
50636251
Decimal
10,697,897
Country
US
Tail
N3077J
Type
BCS3
Broadcasting now · callsign JBU811 · 36,000 ft
Flights observed
16
Distinct callsigns
8
Country
US
Last broadcast
13h ago

Current position

A33CA9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A33CA9 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 8 distinct

Callsign Airline Flights Last seen
JBU72 - 3 2026-04-13
JBU71 JetBlue Airways 3 2026-04-13
JBU678 - 3 2026-04-13
JBU677 - 2 2026-04-13
JBU163 - 2 2026-04-13
JBU164 - 1 2026-04-13
JBU1526 - 1 2026-04-12
JBU1198 - 1 2026-04-14

Recent flights last 16

DateFlightRouteTakeoffLandingDuration
2026-04-14 JBU1198 - Apr 14, 10:10 UTCApr 14, 11:05 UTC55m
2026-04-13 JBU164 - Apr 13, 22:25 UTCApr 13, 23:45 UTC1h 20m
2026-04-13 JBU163 - Apr 13, 19:50 UTCApr 13, 21:15 UTC1h 25m
2026-04-13 JBU163 - Apr 13, 18:30 UTCApr 13, 20:10 UTC1h 40m
2026-04-13 JBU678 - Apr 13, 16:15 UTCApr 13, 16:55 UTC40m
2026-04-13 JBU678 - Apr 13, 15:50 UTCApr 13, 16:55 UTC1h 5m
2026-04-13 JBU678 - Apr 13, 15:03 UTCApr 13, 16:15 UTC1h 13m
2026-04-13 JBU677 - Apr 13, 12:20 UTCApr 13, 13:50 UTC1h 30m
2026-04-13 JBU677 - Apr 13, 11:50 UTCApr 13, 12:15 UTC25m
2026-04-13 JBU72 - Apr 13, 08:20 UTCApr 13, 09:35 UTC1h 15m
2026-04-13 JBU72 - Apr 13, 07:55 UTCApr 13, 09:35 UTC1h 40m
2026-04-13 JBU72 - Apr 13, 05:50 UTCApr 13, 08:15 UTC2h 25m
2026-04-13 JBU71 JFK → SLC Apr 13, 03:55 UTCApr 13, 04:15 UTC20m
2026-04-13 JBU71 JFK → SLC Apr 13, 00:20 UTCApr 13, 04:15 UTC3h 55m
2026-04-12 JBU71 JFK → SLC Apr 12, 23:55 UTCApr 13, 03:50 UTC3h 55m
2026-04-12 JBU1526 - Apr 12, 19:20 UTCApr 12, 20:15 UTC55m

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 N3077J page for operator, model, and routing details .

Mode-S A33CA9 frequently asked

What is Mode-S code A33CA9?
A33CA9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N3077J.
Where is Mode-S A33CA9 registered?
Mode-S code A33CA9 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 A33CA9 broadcasting right now?
Yes. Mode-S A33CA9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A33CA9, octal 50636251, decimal 10,697,897.
What flights does A33CA9 operate?
Mode-S A33CA9 has broadcast 8 distinct callsigns, including JBU72, JBU71, JBU678, JBU677, JBU163.