Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A9819B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N711UW · AIRBUS A-319 · operated by BANK OF UTAH TRUSTEE

Hex
A9819B
Octal
52300633
Decimal
11,108,763
Country
US
Tail
N711UW
Type
A319
No current signal · last broadcast Jul 26, 22:20 UTC
Flights observed
631
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:20 UTC

Last known position

Most recent position reported by Mode-S A9819B.

Country allocation

The ICAO 24-bit address A9819B 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
AAL3270 - 10 2026-07-20
AAL2720 American Airlines 10 2026-07-02
AAL1927 - 9 2026-07-04
AAL712 American Airlines 8 2026-04-30
AAL2354 - 8 2026-07-06
AAL2157 - 8 2026-06-17
AAL2983 - 6 2026-07-02
AAL2403 American Airlines 6 2026-07-20
AAL2246 American Airlines 6 2026-07-22
AAL1957 - 6 2026-06-23
AAL1921 - 6 2026-07-14
AAL1605 - 6 2026-07-08
AAL1590 - 6 2026-07-02
AAL308 - 5 2026-07-18
AAL3041 - 5 2026-06-26
AAL2948 - 5 2026-07-17
AAL2700 - 5 2026-07-03
AAL2631 American Airlines 5 2026-06-03
AAL2392 American Airlines 5 2026-05-14
AAL2223 - 5 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2533 DFW → PHL Jul 26, 20:50 UTCJul 26, 22:20 UTC1h 30m
2026-07-26 AAL846 BOS → CLT Jul 26, 18:25 UTCJul 26, 19:30 UTC1h 5m
2026-07-26 AAL846 BOS → CLT Jul 26, 18:23 UTCJul 26, 19:23 UTC1h 0m
2026-07-26 AAL846 BOS → CLT Jul 26, 16:35 UTCJul 26, 17:30 UTC55m
2026-07-26 AAL2913 MFE → DFW Jul 26, 00:30 UTCJul 26, 01:25 UTC55m
2026-07-26 AAL2913 MFE → DFW Jul 26, 00:29 UTCJul 26, 01:29 UTC1h 0m
2026-07-25 AAL2913 MFE → DFW Jul 25, 22:30 UTCJul 25, 23:20 UTC50m
2026-07-25 AAL1681 MIA → PHL Jul 25, 20:05 UTCJul 25, 21:15 UTC1h 10m
2026-07-25 AAL1681 MIA → PHL Jul 25, 17:50 UTCJul 25, 18:55 UTC1h 5m
2026-07-25 AAL1216 EWR → CLT Jul 25, 14:35 UTCJul 25, 15:30 UTC55m
2026-07-24 AAL1450 DCA → PVD Jul 24, 23:35 UTCJul 25, 00:30 UTC55m
2026-07-24 AAL1876 DFW → DCA Jul 24, 20:05 UTCJul 24, 21:30 UTC1h 25m
2026-07-24 AAL1876 DFW → DCA Jul 24, 17:25 UTCJul 24, 18:45 UTC1h 20m
2026-07-24 AAL1791 LGA → ORD Jul 24, 14:15 UTCJul 24, 15:35 UTC1h 20m
2026-07-24 AAL1791 LGA → ORD Jul 24, 11:55 UTCJul 24, 13:10 UTC1h 15m
2026-07-24 AAL365 SFO → PHL Jul 24, 09:30 UTCJul 24, 10:25 UTC55m
2026-07-24 AAL958 MCO → DCA Jul 24, 01:57 UTCJul 24, 03:47 UTC1h 50m
2026-07-24 AAL958 MCO → DCA Jul 24, 02:00 UTCJul 24, 03:50 UTC1h 50m
2026-07-24 AAL2803 MIA → MCO Jul 24, 00:15 UTCJul 24, 00:55 UTC40m
2026-07-23 AAL1339 CLT → IND Jul 23, 19:20 UTCJul 23, 21:40 UTC2h 20m
2026-07-23 AAL1339 CLT → IND Jul 23, 18:37 UTCJul 23, 21:50 UTC3h 13m
2026-07-23 AAL1339 CLT → IND Jul 23, 18:40 UTCJul 23, 18:50 UTC10m
2026-07-23 AAL2691 ORD → SFO Jul 23, 14:10 UTCJul 23, 16:40 UTC2h 30m
2026-07-23 AAL2737 IAH → DFW Jul 23, 12:20 UTCJul 23, 12:55 UTC35m
2026-07-23 AAL1714 PHL → CLT Jul 23, 05:20 UTCJul 23, 05:55 UTC35m
2026-07-23 AAL1400 MCO → CLT Jul 23, 02:35 UTCJul 23, 03:00 UTC25m
2026-07-22 AAL1400 MCO → CLT Jul 22, 23:00 UTCJul 22, 23:20 UTC20m
2026-07-22 AAL1400 MCO → CLT Jul 22, 22:56 UTCJul 23, 00:20 UTC1h 24m
2026-07-22 AAL2246 JFK → DFW Jul 22, 18:15 UTCJul 22, 18:45 UTC30m
2026-07-22 AAL2246 JFK → DFW Jul 22, 18:02 UTCJul 22, 18:40 UTC38m
2026-07-22 AAL2246 JFK → DFW Jul 22, 15:40 UTCJul 22, 16:05 UTC25m
2026-07-22 AAL2589 YYZ → MIA Jul 22, 11:25 UTCJul 22, 13:55 UTC2h 30m
2026-07-22 AAL1932 LGA → DCA Jul 22, 01:50 UTCJul 22, 03:20 UTC1h 30m
2026-07-21 AAL2909 - Jul 21, 22:50 UTCJul 22, 00:00 UTC1h 10m
2026-07-21 AAL2909 - Jul 21, 20:15 UTCJul 21, 21:15 UTC1h 0m
2026-07-21 AAL1180 CLT → BOS Jul 21, 17:30 UTCJul 21, 18:45 UTC1h 15m
2026-07-21 AAL2774 AUS → PHL Jul 21, 12:40 UTCJul 21, 15:55 UTC3h 15m
2026-07-20 AAL1314 PHL → AUS Jul 20, 21:50 UTCJul 21, 00:45 UTC2h 54m
2026-07-20 AAL2403 ATL → DFW Jul 20, 17:30 UTCJul 20, 18:25 UTC55m
2026-07-20 AAL2403 ATL → DFW Jul 20, 17:25 UTCJul 20, 18:19 UTC54m
2026-07-20 AAL2403 ATL → DFW Jul 20, 15:30 UTCJul 20, 16:25 UTC55m
2026-07-20 AAL3270 - Jul 20, 12:30 UTCJul 20, 14:05 UTC1h 35m
2026-07-20 AAL659 GRR → PHX Jul 20, 02:15 UTCJul 20, 03:35 UTC1h 20m
2026-07-20 AAL659 GRR → PHX Jul 20, 02:13 UTCJul 20, 03:35 UTC1h 22m
2026-07-20 AAL2072 CLT → ORF Jul 20, 00:00 UTCJul 20, 00:40 UTC40m
2026-07-19 AAL2072 CLT → ORF Jul 19, 21:10 UTCJul 19, 21:50 UTC40m
2026-07-19 AAL2831 - Jul 19, 18:40 UTCJul 19, 19:20 UTC40m
2026-07-19 AAL2831 - Jul 19, 16:40 UTCJul 19, 17:25 UTC45m
2026-07-19 AAL414 BDA → MIA Jul 19, 13:15 UTCJul 19, 14:00 UTC45m
2026-07-18 AAL308 - Jul 18, 22:55 UTCJul 18, 23:20 UTC25m

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 N711UW page for operator, model, and routing details .

Mode-S A9819B frequently asked

What is Mode-S code A9819B?
A9819B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N711UW.
Where is Mode-S A9819B registered?
Mode-S code A9819B 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 A9819B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9819B, octal 52300633, decimal 11,108,763.
What flights does A9819B operate?
Mode-S A9819B has broadcast 20 distinct callsigns, including AAL3270, AAL2720, AAL1927, AAL712, AAL2354.