Apparatus

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sensors Mode-S transponder

A1D99B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2180J · AIRBUS A-321neo · operated by JETBLUE AIRWAYS CORP

Hex
A1D99B
Octal
50354633
Decimal
10,607,003
Country
US
Tail
N2180J
Type
A21N
No current signal · last broadcast 1h ago
Flights observed
264
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A1D99B.

Country allocation

The ICAO 24-bit address A1D99B 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
JBU1723 JetBlue Airways 15 2026-05-20
JBU842 - 12 2026-07-07
JBU841 - 12 2026-07-07
JBU353 - 12 2026-07-11
JBU224 JetBlue Airways 10 2026-05-20
JBU1515 JetBlue Airways 10 2026-05-17
JBU354 - 9 2026-07-11
JBU2104 - 9 2026-07-10
JBU724 JetBlue Airways 8 2026-05-19
JBU123 JetBlue Airways 8 2026-05-19
JBU1216 JetBlue Airways 8 2026-05-17
JBU1190 JetBlue Airways 7 2026-05-17
JBU73 - 6 2026-06-29
JBU1926 - 6 2026-07-10
JBU1189 JetBlue Airways 6 2026-04-26
JBU1079 - 6 2026-07-13
JBU72 - 5 2026-06-15
JBU223 JetBlue Airways 5 2026-06-08
JBU1080 - 5 2026-06-29
JBU1024 - 5 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 JBU823 - Jul 13, 22:20 UTCJul 14, 03:15 UTC4h 55m
2026-07-13 JBU1079 BOS → EDI Jul 13, 03:25 UTCJul 13, 09:30 UTC6h 5m
2026-07-13 JBU1079 BOS → EDI Jul 13, 03:21 UTCJul 14, 02:45 UTC23h 25m
2026-07-12 JBU1178 LAS → BOS Jul 12, 20:20 UTCJul 13, 01:20 UTC5h 0m
2026-07-12 JBU1034 - Jul 12, 04:10 UTCJul 12, 09:15 UTC5h 5m
2026-07-12 JBU1034 SFO → BOS Jul 12, 04:07 UTCJul 13, 01:30 UTC21h 24m
2026-07-11 JBU833 BOS → SFO Jul 11, 19:15 UTCJul 12, 00:55 UTC5h 40m
2026-07-11 JBU354 DUB → BOS Jul 11, 09:50 UTCJul 11, 16:25 UTC6h 35m
2026-07-11 JBU353 BOS → DUB Jul 11, 01:25 UTCJul 11, 07:00 UTC5h 35m
2026-07-10 JBU1926 LGW → BOS Jul 10, 11:45 UTCJul 10, 19:15 UTC7h 30m
2026-07-10 JBU2104 BOS → LGW Jul 10, 02:20 UTCJul 10, 08:55 UTC6h 35m
2026-07-09 JBU1926 LGW → BOS Jul 9, 11:35 UTCJul 10, 10:45 UTC23h 10m
2026-07-09 JBU2104 BOS → LGW Jul 9, 02:02 UTCJul 9, 19:20 UTC17h 18m
2026-07-08 JBU620 SAN → BOS Jul 8, 17:25 UTCJul 9, 13:00 UTC19h 36m
2026-07-08 JBU8358 JFK → BOS Jul 8, 02:49 UTCJul 9, 02:45 UTC23h 57m
2026-07-08 JBU8358 JFK → BOS Jul 8, 02:50 UTCJul 8, 03:40 UTC50m
2026-07-07 JBU842 - Jul 7, 10:45 UTCJul 7, 17:40 UTC6h 55m
2026-07-07 JBU841 JFK → DUB Jul 7, 01:45 UTCJul 7, 07:40 UTC5h 55m
2026-07-06 JBU1024 LAX → JFK Jul 6, 07:05 UTCJul 6, 12:05 UTC5h 0m
2026-07-05 JBU1387 BOS → LAX Jul 5, 23:40 UTCJul 6, 05:15 UTC5h 35m
2026-07-05 JBU1926 LGW → BOS Jul 5, 11:35 UTCJul 5, 19:00 UTC7h 25m
2026-07-05 JBU2104 - Jul 5, 02:45 UTCJul 5, 08:40 UTC5h 55m
2026-07-04 JBU488 - Jul 4, 05:30 UTCJul 4, 10:45 UTC5h 15m
2026-07-04 JBU488 LAX → BOS Jul 4, 05:29 UTCJul 5, 03:50 UTC22h 22m
2026-07-03 JBU842 DUB → JFK Jul 3, 10:40 UTCJul 4, 08:45 UTC22h 5m
2026-07-03 JBU841 - Jul 3, 01:25 UTCJul 3, 02:45 UTC1h 20m
2026-07-03 JBU841 JFK → DUB Jul 3, 01:25 UTCJul 4, 00:45 UTC23h 20m
2026-07-02 JBU842 - Jul 2, 10:40 UTCJul 2, 17:50 UTC7h 10m
2026-07-02 JBU841 JFK → DUB Jul 2, 01:45 UTCJul 2, 07:45 UTC6h 0m
2026-07-01 JBU1024 - Jul 1, 06:15 UTCJul 1, 11:10 UTC4h 55m
2026-06-30 JBU1387 - Jun 30, 22:20 UTCJul 1, 04:05 UTC5h 45m
2026-06-30 JBU2104 BOS → LGW Jun 30, 02:05 UTCJul 1, 00:45 UTC22h 40m
2026-06-30 JBU2104 - Jun 30, 02:05 UTCJun 30, 02:45 UTC40m
2026-06-29 JBU1080 EDI → BOS Jun 29, 10:34 UTCJun 29, 17:14 UTC6h 40m
2026-06-29 JBU73 JFK → EDI Jun 29, 02:05 UTCJun 29, 08:24 UTC6h 20m
2026-06-28 JBU842 DUB → JFK Jun 28, 10:55 UTCJun 28, 16:45 UTC5h 50m
2026-06-28 JBU842 DUB → JFK Jun 28, 10:54 UTCJun 29, 08:24 UTC21h 31m
2026-06-28 JBU841 JFK → SAV Jun 28, 01:50 UTCJun 28, 07:29 UTC5h 40m
2026-06-27 JBU842 DUB → JFK Jun 27, 10:50 UTCJun 27, 17:34 UTC6h 45m
2026-06-26 JBU1548 LAS → JFK Jun 26, 17:30 UTCJun 27, 16:44 UTC23h 15m
2026-06-26 JBU1524 - Jun 26, 03:50 UTCJun 26, 08:30 UTC4h 40m
2026-06-26 JBU1524 LAX → JFK Jun 26, 03:48 UTCJun 27, 02:45 UTC22h 57m
2026-06-25 JBU842 DUB → JFK Jun 25, 10:50 UTCJun 25, 18:10 UTC7h 20m
2026-06-25 JBU842 DUB → JFK Jun 25, 10:45 UTCJun 26, 08:40 UTC21h 55m
2026-06-25 JBU841 JFK → SAV Jun 25, 01:50 UTCJun 25, 07:25 UTC5h 35m
2026-06-24 JBU1548 LAS → JFK Jun 24, 17:25 UTCJun 24, 21:44 UTC4h 20m
2026-06-24 JBU411 BOS → SAN Jun 24, 10:55 UTCJun 24, 15:54 UTC5h 0m
2026-06-23 JBU424 - Jun 23, 21:49 UTCJun 24, 02:45 UTC4h 55m
2026-06-23 JBU323 - Jun 23, 12:49 UTCJun 23, 18:20 UTC5h 30m
2026-06-23 JBU1524 - Jun 23, 05:04 UTCJun 23, 09:49 UTC4h 45m

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 N2180J page for operator, model, and routing details .

Mode-S A1D99B frequently asked

What is Mode-S code A1D99B?
A1D99B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2180J.
Where is Mode-S A1D99B registered?
Mode-S code A1D99B 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 A1D99B broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1D99B, octal 50354633, decimal 10,607,003.
What flights does A1D99B operate?
Mode-S A1D99B has broadcast 20 distinct callsigns, including JBU1723, JBU842, JBU841, JBU353, JBU224.