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 Jul 26, 00:05 UTC
Flights observed
302
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 00:05 UTC

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
JBU2104 JetBlue Airways 13 2026-07-20
JBU842 - 12 2026-07-07
JBU841 - 12 2026-07-07
JBU353 - 12 2026-07-11
JBU354 - 11 2026-07-19
JBU1926 - 11 2026-07-20
JBU224 JetBlue Airways 10 2026-05-20
JBU1515 JetBlue Airways 10 2026-05-17
JBU724 JetBlue Airways 8 2026-05-19
JBU123 JetBlue Airways 8 2026-05-19
JBU1216 JetBlue Airways 8 2026-05-17
JBU1387 JetBlue Airways 7 2026-07-20
JBU1190 JetBlue Airways 7 2026-05-17
JBU73 - 6 2026-06-29
JBU223 - 6 2026-07-17
JBU1333 JetBlue Airways 6 2026-07-25
JBU1189 JetBlue Airways 6 2026-04-26
JBU1079 - 6 2026-07-13
JBU1024 - 6 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 JBU1333 BOS → SFO Jul 25, 10:40 UTCJul 26, 00:05 UTC13h 25m
2026-07-25 JBU1333 BOS → SFO Jul 25, 10:45 UTCJul 25, 17:00 UTC6h 15m
2026-07-24 JBU220 DTW → JFK Jul 24, 23:20 UTCJul 25, 04:25 UTC5h 5m
2026-07-24 JBU219 JFK → DTW Jul 24, 16:10 UTCJul 24, 21:50 UTC5h 40m
2026-07-24 JBU1034 TPA → BDL Jul 24, 09:30 UTCJul 24, 14:20 UTC4h 50m
2026-07-24 JBU1633 BTV → JFK Jul 24, 01:45 UTCJul 24, 07:55 UTC6h 10m
2026-07-23 JBU1534 TPA → BDL Jul 23, 19:05 UTCJul 24, 00:05 UTC5h 0m
2026-07-23 JBU1333 BOS → SFO Jul 23, 11:00 UTCJul 23, 17:15 UTC6h 15m
2026-07-23 JBU2120 SAN → BOS Jul 23, 04:15 UTCJul 23, 09:15 UTC5h 0m
2026-07-22 JBU319 JFK → ATL Jul 22, 21:05 UTCJul 23, 02:50 UTC5h 45m
2026-07-22 JBU778 LAS → BOS Jul 22, 10:20 UTCJul 22, 12:35 UTC2h 15m
2026-07-21 JBU1177 BOS → LAS Jul 21, 12:25 UTCJul 21, 17:40 UTC5h 15m
2026-07-21 JBU488 MCO → ORH Jul 21, 05:20 UTCJul 21, 10:15 UTC4h 55m
2026-07-20 JBU1387 BOS → LAX Jul 20, 22:10 UTCJul 21, 03:50 UTC5h 39m
2026-07-20 JBU1926 LGW → BOS Jul 20, 11:45 UTCJul 20, 19:10 UTC7h 25m
2026-07-20 JBU2104 BOS → LGW Jul 20, 02:06 UTCJul 20, 08:45 UTC6h 40m
2026-07-20 JBU2104 BOS → LGW Jul 20, 02:10 UTCJul 20, 08:30 UTC6h 20m
2026-07-19 JBU354 DUB → BOS Jul 19, 10:00 UTCJul 19, 16:35 UTC6h 35m
2026-07-19 JBU354 DUB → BOS Jul 19, 09:57 UTCJul 20, 08:45 UTC22h 49m
2026-07-18 JBU1926 LGW → BOS Jul 18, 13:43 UTCJul 19, 10:40 UTC20h 58m
2026-07-18 JBU1926 LGW → BOS Jul 18, 13:45 UTCJul 18, 20:35 UTC6h 50m
2026-07-17 JBU324 - Jul 17, 18:40 UTCJul 17, 23:55 UTC5h 15m
2026-07-17 JBU324 LAX → JFK Jul 17, 18:37 UTCJul 18, 11:55 UTC17h 19m
2026-07-17 JBU223 JFK → LAX Jul 17, 12:15 UTCJul 17, 17:15 UTC5h 0m
2026-07-17 JBU1024 - Jul 17, 05:35 UTCJul 17, 10:30 UTC4h 55m
2026-07-16 JBU1387 BOS → LAX Jul 16, 23:59 UTCJul 17, 03:39 UTC3h 40m
2026-07-16 JBU1387 BOS → LAX Jul 16, 22:15 UTCJul 16, 23:55 UTC1h 40m
2026-07-16 JBU1387 BOS → LAX Jul 16, 21:15 UTCJul 16, 21:19 UTC5m
2026-07-16 JBU1926 BOS → BOS Jul 16, 19:05 UTCJul 16, 19:10 UTC5m
2026-07-16 JBU1926 LGW → BOS Jul 16, 11:40 UTCJul 16, 18:55 UTC7h 15m
2026-07-16 JBU2104 - Jul 16, 02:10 UTCJul 16, 08:50 UTC6h 40m
2026-07-16 JBU2104 BOS → BOS Jul 16, 00:30 UTCJul 16, 00:55 UTC25m
2026-07-15 JBU1534 - Jul 15, 18:55 UTCJul 16, 00:00 UTC5h 5m
2026-07-15 JBU1333 BOS → SFO Jul 15, 10:50 UTCJul 15, 16:30 UTC5h 40m
2026-07-14 JBU220 - Jul 14, 20:40 UTCJul 15, 01:50 UTC5h 9m
2026-07-14 JBU219 - Jul 14, 12:55 UTCJul 14, 18:00 UTC5h 5m
2026-07-14 JBU219 BOS → BOS Jul 14, 12:20 UTCJul 14, 12:25 UTC5m
2026-07-14 JBU488 - Jul 14, 05:20 UTCJul 14, 10:45 UTC5h 25m
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

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 Jul 26, 00:05 UTC.
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, JBU2104, JBU842, JBU841, JBU353.