Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AC5D61

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N896UA · AIRBUS A-319 · operated by UMB BANK NA TRUSTEE

Hex
AC5D61
Octal
53056541
Decimal
11,296,097
Country
US
Tail
N896UA
Type
A319
No current signal · last broadcast Jul 26, 21:50 UTC
Flights observed
527
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:50 UTC

Last known position

Most recent position reported by Mode-S AC5D61.

Country allocation

The ICAO 24-bit address AC5D61 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
UAL786 United Airlines 5 2026-07-25
UAL1604 United Airlines 5 2026-07-03
UAL725 - 4 2026-07-03
UAL616 United Airlines 4 2026-07-19
UAL537 - 4 2026-07-20
UAL451 United Airlines 4 2026-06-01
UAL2762 United Airlines 4 2026-07-25
UAL2684 United Airlines 4 2026-06-26
UAL2341 United Airlines 4 2026-05-13
UAL1982 United Airlines 4 2026-07-23
UAL1639 United Airlines 4 2026-07-24
UAL1517 - 4 2026-06-25
UAL1493 United Airlines 4 2026-05-13
UAL1479 - 4 2026-07-15
UAL600 - 3 2026-07-13
UAL581 United Airlines 3 2026-05-21
UAL568 - 3 2026-07-15
UAL549 - 3 2026-07-10
UAL543 - 3 2026-07-11
UAL447 - 3 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL2729 PHL → ORD Jul 26, 18:50 UTCJul 26, 21:50 UTC3h 0m
2026-07-26 UAL2728 VCV → SFO Jul 26, 14:30 UTCJul 26, 17:20 UTC2h 50m
2026-07-26 UAL303 FLL → EWR Jul 26, 00:00 UTCJul 26, 01:05 UTC1h 5m
2026-07-25 UAL303 FLL → EWR Jul 25, 23:54 UTCJul 26, 01:03 UTC1h 9m
2026-07-25 UAL664 LAS → ORD Jul 25, 21:15 UTCJul 25, 22:15 UTC1h 0m
2026-07-25 UAL2180 DEN → SFO Jul 25, 18:25 UTCJul 25, 19:35 UTC1h 10m
2026-07-25 UAL2771 HNL → ORD Jul 25, 16:05 UTCJul 25, 17:10 UTC1h 5m
2026-07-25 UAL786 ATL → EWR Jul 25, 12:35 UTCJul 25, 14:00 UTC1h 25m
2026-07-25 UAL2762 SFO → FTW Jul 25, 02:35 UTCJul 25, 03:55 UTC1h 20m
2026-07-24 UAL1639 OGG → SFO Jul 24, 23:05 UTCJul 25, 00:05 UTC1h 0m
2026-07-24 UAL1639 OGG → SFO Jul 24, 19:40 UTCJul 24, 21:20 UTC1h 40m
2026-07-24 UAL1413 EWR → PBI Jul 24, 14:20 UTCJul 24, 17:45 UTC3h 25m
2026-07-24 UAL1602 MCO → DEN Jul 24, 00:55 UTCJul 24, 02:55 UTC2h 0m
2026-07-23 UAL1439 EWR → SFO Jul 23, 21:30 UTCJul 23, 22:15 UTC45m
2026-07-23 UAL1439 EWR → SFO Jul 23, 21:41 UTCJul 23, 22:13 UTC32m
2026-07-23 UAL1072 BJX → IAH Jul 23, 15:00 UTCJul 23, 19:50 UTC4h 50m
2026-07-23 UAL1982 ORD → LGA Jul 23, 11:30 UTCJul 23, 13:25 UTC1h 55m
2026-07-23 UAL1780 PDX → SFO Jul 23, 01:45 UTCJul 23, 03:30 UTC1h 45m
2026-07-22 UAL1091 - Jul 22, 19:55 UTCJul 22, 21:45 UTC1h 50m
2026-07-22 UAL1060 - Jul 22, 16:40 UTCJul 22, 18:25 UTC1h 45m
2026-07-22 UAL1060 IAH → MEX Jul 22, 16:50 UTCJul 22, 18:24 UTC1h 34m
2026-07-21 UAL2460 SAT → IAH Jul 21, 12:50 UTCJul 21, 15:10 UTC2h 20m
2026-07-21 UAL2378 SFO → BUR Jul 21, 01:55 UTCJul 21, 04:15 UTC2h 20m
2026-07-20 UAL750 - Jul 20, 20:55 UTCJul 21, 00:20 UTC3h 25m
2026-07-20 UAL537 - Jul 20, 16:05 UTCJul 20, 19:45 UTC3h 40m
2026-07-20 UAL428 - Jul 20, 13:00 UTCJul 20, 14:50 UTC1h 50m
2026-07-20 UAL429 IAH → MEX Jul 20, 03:10 UTCJul 20, 04:55 UTC1h 45m
2026-07-20 UAL1871 MCO → EWR Jul 20, 00:55 UTCJul 20, 01:30 UTC35m
2026-07-19 UAL1899 DEN → AUS Jul 19, 21:55 UTCJul 19, 23:40 UTC1h 45m
2026-07-19 UAL1899 DEN → AUS Jul 19, 21:54 UTCJul 19, 23:41 UTC1h 47m
2026-07-19 UAL2033 RNO → SFO Jul 19, 19:35 UTCJul 19, 19:55 UTC20m
2026-07-19 UAL2045 TPA → EWR Jul 19, 17:30 UTCJul 19, 17:50 UTC20m
2026-07-19 UAL1963 - Jul 19, 12:45 UTCJul 19, 15:35 UTC2h 50m
2026-07-19 UAL616 SJC → ORD Jul 19, 00:15 UTCJul 19, 03:00 UTC2h 45m
2026-07-19 UAL616 SJC → ORD Jul 19, 00:08 UTCJul 19, 03:02 UTC2h 54m
2026-07-18 UAL2128 DEN → DEN Jul 18, 18:00 UTCJul 18, 22:10 UTC4h 10m
2026-07-18 UAL1045 - Jul 18, 14:55 UTCJul 18, 16:20 UTC1h 25m
2026-07-18 UAL1351 DEN → XNA Jul 18, 00:25 UTCJul 18, 01:45 UTC1h 20m
2026-07-17 UAL2187 BUR → DEN Jul 17, 20:00 UTCJul 17, 21:55 UTC1h 55m
2026-07-17 UAL2115 - Jul 17, 17:44 UTCJul 17, 18:40 UTC55m
2026-07-17 UAL1293 BNA → SFO Jul 17, 11:50 UTCJul 17, 15:49 UTC4h 0m
2026-07-16 UAL373 - Jul 16, 23:59 UTCJul 17, 04:04 UTC4h 5m
2026-07-16 UAL1846 SBP → SFO Jul 16, 21:40 UTCJul 16, 22:19 UTC40m
2026-07-16 UAL1846 SBP → SFO Jul 16, 21:23 UTCJul 16, 22:14 UTC51m
2026-07-16 UAL1846 DEN → SBP Jul 16, 17:40 UTCJul 16, 19:45 UTC2h 5m
2026-07-16 UAL1963 - Jul 16, 12:55 UTCJul 16, 15:45 UTC2h 50m
2026-07-16 UAL616 DEN → CLT Jul 16, 00:08 UTCJul 16, 02:54 UTC2h 46m
2026-07-16 UAL616 - Jul 16, 00:00 UTCJul 16, 02:55 UTC2h 55m
2026-07-15 UAL1510 - Jul 15, 19:50 UTCJul 15, 22:10 UTC2h 20m
2026-07-15 UAL1479 DEN → SDF Jul 15, 15:50 UTCJul 15, 18:10 UTC2h 20m

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 N896UA page for operator, model, and routing details .

Mode-S AC5D61 frequently asked

What is Mode-S code AC5D61?
AC5D61 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N896UA.
Where is Mode-S AC5D61 registered?
Mode-S code AC5D61 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 AC5D61 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC5D61, octal 53056541, decimal 11,296,097.
What flights does AC5D61 operate?
Mode-S AC5D61 has broadcast 20 distinct callsigns, including UAL786, UAL1604, UAL725, UAL616, UAL537.