Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AC64CF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N898UA · AIRBUS A-319 · operated by UMB BANK NA TRUSTEE

Hex
AC64CF
Octal
53062317
Decimal
11,297,999
Country
US
Tail
N898UA
Type
A319
No current signal · last broadcast Jul 26, 18:35 UTC
Flights observed
442
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 18:35 UTC

Last known position

Most recent position reported by Mode-S AC64CF.

Country allocation

The ICAO 24-bit address AC64CF 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
UAL2289 - 7 2026-06-26
UAL1780 United Airlines 6 2026-07-20
UAL255 - 5 2026-07-13
UAL697 United Airlines 4 2026-07-17
UAL587 United Airlines 4 2026-07-19
UAL473 United Airlines 4 2026-04-23
UAL454 United Airlines 4 2026-04-29
UAL2616 United Airlines 4 2026-05-05
UAL249 United Airlines 4 2026-05-12
UAL2470 - 4 2026-06-25
UAL2415 United Airlines 4 2026-05-05
UAL2407 United Airlines 4 2026-07-22
UAL2287 United Airlines 4 2026-05-10
UAL2045 United Airlines 4 2026-06-25
UAL2041 United Airlines 4 2026-05-17
UAL2033 - 4 2026-06-25
UAL1982 United Airlines 4 2026-07-20
UAL1836 - 4 2026-06-21
UAL1608 - 4 2026-06-18
UAL1574 United Airlines 4 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL2232 ORD → MSP Jul 26, 16:50 UTCJul 26, 18:30 UTC1h 40m
2026-07-26 UAL773 EWR → MSY Jul 26, 14:05 UTCJul 26, 15:35 UTC1h 30m
2026-07-26 UAL1910 EWR → DEN Jul 26, 00:10 UTCJul 26, 01:10 UTC1h 0m
2026-07-25 UAL1840 EWR → ORD Jul 25, 20:00 UTCJul 25, 21:05 UTC1h 5m
2026-07-25 UAL2049 EUG → SFO Jul 25, 17:05 UTCJul 25, 18:40 UTC1h 35m
2026-07-25 UAL2160 PHX → SFO Jul 25, 13:55 UTCJul 25, 15:25 UTC1h 30m
2026-07-25 UAL1602 MCO → DEN Jul 25, 00:03 UTCJul 25, 01:31 UTC1h 28m
2026-07-25 UAL1602 MCO → DEN Jul 25, 00:00 UTCJul 25, 01:35 UTC1h 35m
2026-07-24 UAL1439 EWR → SFO Jul 24, 21:45 UTCJul 24, 22:30 UTC45m
2026-07-24 UAL2079 SFO → BOS Jul 24, 18:05 UTCJul 24, 19:25 UTC1h 20m
2026-07-24 UAL2068 LGA → ORD Jul 24, 14:50 UTCJul 24, 16:00 UTC1h 10m
2026-07-24 UAL2068 LGA → ORD Jul 24, 14:57 UTCJul 24, 16:19 UTC1h 22m
2026-07-24 UAL1085 MEX → IAH Jul 24, 11:00 UTCJul 24, 12:50 UTC1h 50m
2026-07-24 UAL1085 MEX → IAH Jul 24, 11:04 UTCJul 24, 12:44 UTC1h 40m
2026-07-24 UAL429 IAH → MEX Jul 24, 03:15 UTCJul 24, 05:00 UTC1h 45m
2026-07-23 UAL1025 MEX → IAH Jul 23, 22:55 UTCJul 24, 01:05 UTC2h 10m
2026-07-23 UAL1090 IAH → MEX Jul 23, 19:35 UTCJul 23, 21:30 UTC1h 55m
2026-07-23 UAL1090 IAH → MEX Jul 23, 19:37 UTCJul 23, 21:28 UTC1h 51m
2026-07-23 UAL425 MCO → EWR Jul 23, 16:05 UTCJul 23, 17:45 UTC1h 40m
2026-07-23 UAL1030 SAT → EWR Jul 23, 12:40 UTCJul 23, 14:25 UTC1h 45m
2026-07-23 UAL2260 PHL → ORD Jul 23, 10:20 UTCJul 23, 11:00 UTC40m
2026-07-23 UAL1949 ORD → DCA Jul 23, 01:40 UTCJul 23, 02:25 UTC45m
2026-07-22 UAL2407 TPA → EWR Jul 22, 21:35 UTCJul 22, 23:45 UTC2h 10m
2026-07-22 UAL2407 TPA → EWR Jul 22, 21:30 UTCJul 22, 23:44 UTC2h 14m
2026-07-22 UAL2196 AUS → IAH Jul 22, 17:30 UTCJul 22, 19:50 UTC2h 20m
2026-07-22 UAL1586 DEN → LGA Jul 22, 15:00 UTCJul 22, 15:45 UTC45m
2026-07-22 UAL358 SFO → LAS Jul 22, 12:40 UTCJul 22, 13:25 UTC45m
2026-07-22 UAL358 SFO → LAS Jul 22, 12:42 UTCJul 22, 13:19 UTC37m
2026-07-21 UAL750 EWR → PBI Jul 21, 21:00 UTCJul 22, 00:30 UTC3h 30m
2026-07-21 UAL537 - Jul 21, 15:05 UTCJul 21, 18:45 UTC3h 40m
2026-07-21 UAL740 SEA → DEN Jul 21, 11:35 UTCJul 21, 13:10 UTC1h 35m
2026-07-21 UAL1027 EWR → IAH Jul 21, 02:10 UTCJul 21, 03:50 UTC1h 40m
2026-07-20 UAL1982 ORD → LGA Jul 20, 11:40 UTCJul 20, 13:35 UTC1h 55m
2026-07-20 UAL1780 PDX → SFO Jul 20, 01:30 UTCJul 20, 03:20 UTC1h 50m
2026-07-20 UAL1780 PDX → SFO Jul 20, 01:32 UTCJul 20, 03:17 UTC1h 45m
2026-07-19 UAL1420 MCO → EWR Jul 19, 21:50 UTCJul 19, 23:50 UTC2h 0m
2026-07-19 UAL587 EWR → MSP Jul 19, 19:45 UTCJul 19, 20:06 UTC21m
2026-07-19 UAL587 EWR → MSP Jul 19, 19:35 UTCJul 19, 20:10 UTC35m
2026-07-19 UAL1114 DFW → ORD Jul 19, 15:00 UTCJul 19, 16:50 UTC1h 50m
2026-07-18 UAL1388 - Jul 18, 20:35 UTCJul 18, 21:25 UTC50m
2026-07-18 UAL2472 - Jul 18, 15:00 UTCJul 18, 18:35 UTC3h 35m
2026-07-18 UAL738 - Jul 18, 01:00 UTCJul 18, 04:35 UTC3h 36m
2026-07-17 UAL738 - Jul 17, 21:15 UTCJul 17, 23:20 UTC2h 5m
2026-07-17 UAL2364 - Jul 17, 17:50 UTCJul 17, 19:45 UTC1h 55m
2026-07-17 UAL697 DCA → IAH Jul 17, 12:50 UTCJul 17, 15:25 UTC2h 35m
2026-07-16 UAL2296 - Jul 16, 22:19 UTCJul 17, 01:05 UTC2h 45m
2026-07-16 UAL1469 - Jul 16, 18:40 UTCJul 16, 20:49 UTC2h 10m
2026-07-16 UAL1469 DRO → IAH Jul 16, 18:38 UTCJul 16, 20:43 UTC2h 5m
2026-07-16 UAL2281 - Jul 16, 15:05 UTCJul 16, 16:44 UTC1h 40m
2026-07-16 UAL1982 - Jul 16, 11:30 UTCJul 16, 13:30 UTC2h 0m

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 N898UA page for operator, model, and routing details .

Mode-S AC64CF frequently asked

What is Mode-S code AC64CF?
AC64CF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N898UA.
Where is Mode-S AC64CF registered?
Mode-S code AC64CF 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 AC64CF broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC64CF, octal 53062317, decimal 11,297,999.
What flights does AC64CF operate?
Mode-S AC64CF has broadcast 20 distinct callsigns, including UAL2289, UAL1780, UAL255, UAL697, UAL587.