Apparatus

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sensors Mode-S transponder

ADDADB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N992JB · AIRBUS A-321 · operated by JETBLUE AIRWAYS CORP

Hex
ADDADB
Octal
53355333
Decimal
11,393,755
Country
US
Tail
N992JB
Type
A321
Broadcasting now · callsign JBU2824 · 31,000 ft
Flights observed
27
Distinct callsigns
8
Country
US
Last broadcast
37m ago

Current position

ADDADB is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ADDADB 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
JBU1997 JetBlue Airways 9 2026-04-18
JBU2178 JetBlue Airways 4 2026-04-17
JBU8589 JetBlue Airways 3 2026-04-15
JBU588 JetBlue Airways 3 2026-04-16
JBU2077 JetBlue Airways 3 2026-04-17
JBU1878 JetBlue Airways 2 2026-04-17
JBU1877 JetBlue Airways 2 2026-04-17
JBU2824 JetBlue Airways 1 2026-04-18

Recent flights last 27

DateFlightRouteTakeoffLandingDuration
2026-04-18 JBU2824 LAX → JFK Apr 18, 15:25 UTCApr 18, 18:45 UTC3h 20m
2026-04-18 JBU1997 BOS → ATL Apr 18, 07:25 UTCApr 18, 08:15 UTC50m
2026-04-18 JBU1997 BOS → ATL Apr 18, 05:25 UTCApr 18, 07:20 UTC1h 55m
2026-04-18 JBU1997 BOS → ATL Apr 18, 04:45 UTCApr 18, 06:40 UTC1h 55m
2026-04-18 JBU1997 BOS → ATL Apr 18, 03:25 UTCApr 18, 05:20 UTC1h 55m
2026-04-18 JBU1997 BOS → ATL Apr 18, 01:55 UTCApr 18, 03:20 UTC1h 25m
2026-04-17 JBU1878 SXM → BOS Apr 17, 22:00 UTCApr 17, 22:40 UTC40m
2026-04-17 JBU1878 SXM → BOS Apr 17, 19:10 UTCApr 17, 19:20 UTC10m
2026-04-17 JBU1877 BOS → SXM Apr 17, 16:25 UTCApr 17, 16:40 UTC15m
2026-04-17 JBU1877 BOS → SXM Apr 17, 13:20 UTCApr 17, 13:55 UTC36m
2026-04-17 JBU2178 LAS → BOS Apr 17, 09:20 UTCApr 17, 09:25 UTC5m
2026-04-17 JBU2178 LAS → BOS Apr 17, 07:20 UTCApr 17, 09:15 UTC1h 55m
2026-04-17 JBU2178 LAS → BOS Apr 17, 05:20 UTCApr 17, 07:15 UTC1h 55m
2026-04-17 JBU2178 LAS → BOS Apr 17, 04:59 UTCApr 17, 05:15 UTC17m
2026-04-17 JBU2077 LGA → FLL Apr 17, 01:20 UTCApr 17, 02:35 UTC1h 15m
2026-04-16 JBU2077 LGA → FLL Apr 16, 23:20 UTCApr 17, 01:15 UTC1h 55m
2026-04-16 JBU2077 LGA → FLL Apr 16, 21:14 UTCApr 16, 23:10 UTC1h 55m
2026-04-16 JBU588 LAX → BOS Apr 16, 17:15 UTCApr 16, 19:10 UTC1h 55m
2026-04-16 JBU588 LAX → BOS Apr 16, 15:15 UTCApr 16, 17:10 UTC1h 55m
2026-04-16 JBU588 LAX → BOS Apr 16, 14:25 UTCApr 16, 15:10 UTC45m
2026-04-16 JBU1997 BOS → ATL Apr 16, 07:09 UTCApr 16, 07:45 UTC35m
2026-04-16 JBU1997 BOS → ATL Apr 16, 05:15 UTCApr 16, 07:05 UTC1h 50m
2026-04-16 JBU1997 BOS → ATL Apr 16, 03:09 UTCApr 16, 05:05 UTC1h 55m
2026-04-16 JBU1997 BOS → ATL Apr 16, 01:10 UTCApr 16, 03:04 UTC1h 55m
2026-04-15 JBU8589 BOS → QRO Apr 15, 21:05 UTCApr 15, 22:50 UTC1h 45m
2026-04-15 JBU8589 BOS → QRO Apr 15, 19:05 UTCApr 15, 21:00 UTC1h 55m
2026-04-15 JBU8589 BOS → QRO Apr 15, 17:52 UTCApr 15, 19:00 UTC1h 8m

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 N992JB page for operator, model, and routing details .

Mode-S ADDADB frequently asked

What is Mode-S code ADDADB?
ADDADB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N992JB.
Where is Mode-S ADDADB registered?
Mode-S code ADDADB 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 ADDADB broadcasting right now?
Yes. Mode-S ADDADB is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADDADB, octal 53355333, decimal 11,393,755.
What flights does ADDADB operate?
Mode-S ADDADB has broadcast 8 distinct callsigns, including JBU1997, JBU2178, JBU8589, JBU588, JBU2077.