Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A59197

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N458UA · AIRBUS A-320 · operated by UNITED AIRLINES INC

Hex
A59197
Octal
51310627
Decimal
10,850,711
Country
US
Tail
N458UA
Type
A320
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
426
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S A59197.

Country allocation

The ICAO 24-bit address A59197 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
UAL333 United Airlines 8 2026-07-25
UAL1843 United Airlines 8 2026-05-05
UAL817 United Airlines 7 2026-05-17
UAL718 United Airlines 7 2026-05-18
UAL2424 United Airlines 6 2026-06-12
UAL1294 United Airlines 6 2026-05-05
UAL2447 - 5 2026-07-11
UAL1436 United Airlines 5 2026-07-19
UAL792 United Airlines 4 2026-05-06
UAL724 United Airlines 4 2026-07-25
UAL2225 - 4 2026-06-29
UAL1633 United Airlines 4 2026-07-26
UAL1594 - 4 2026-04-13
UAL1305 - 4 2026-06-20
UAL1107 United Airlines 4 2026-06-03
UAL791 United Airlines 3 2026-05-22
UAL697 United Airlines 3 2026-06-02
UAL671 United Airlines 3 2026-05-05
UAL397 United Airlines 3 2026-06-07
UAL2657 United Airlines 3 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UAL2609 LAX → BOS Jul 26, 20:30 UTCJul 26, 21:45 UTC1h 15m
2026-07-26 UAL1633 ORD → PHL Jul 26, 16:05 UTCJul 26, 18:45 UTC2h 40m
2026-07-25 UAL2609 LAX → BOS Jul 25, 20:35 UTCJul 25, 23:35 UTC3h 0m
2026-07-25 UAL1633 ORD → PHL Jul 25, 16:30 UTCJul 25, 19:10 UTC2h 40m
2026-07-25 UAL1633 ORD → PHL Jul 25, 16:21 UTCJul 25, 19:10 UTC2h 49m
2026-07-25 UAL724 HNL → SFO Jul 25, 13:35 UTCJul 25, 14:35 UTC1h 0m
2026-07-25 UAL333 BOS → LAX Jul 25, 06:35 UTCJul 25, 06:55 UTC20m
2026-07-25 UAL333 BOS → LAX Jul 25, 06:40 UTCJul 25, 07:11 UTC31m
2026-07-25 UAL333 BOS → LAX Jul 25, 04:20 UTCJul 25, 04:35 UTC15m
2026-07-25 UAL333 BOS → LAX Jul 25, 02:10 UTCJul 25, 03:35 UTC1h 25m
2026-07-24 UAL720 PHL → DEN Jul 24, 21:25 UTCJul 25, 00:05 UTC2h 40m
2026-07-24 UAL2787 GUM → SFO Jul 24, 17:55 UTCJul 24, 20:20 UTC2h 25m
2026-07-24 UAL1521 IAD → MSY Jul 24, 14:45 UTCJul 24, 16:10 UTC1h 25m
2026-07-24 UAL549 BOS → ORD Jul 24, 00:32 UTCJul 24, 01:49 UTC1h 17m
2026-07-24 UAL549 BOS → ORD Jul 24, 00:40 UTCJul 24, 01:55 UTC1h 15m
2026-07-23 UAL1790 EWR → MYR Jul 23, 21:10 UTCJul 23, 23:15 UTC2h 5m
2026-07-23 UAL1578 IAH → LAX Jul 23, 17:45 UTCJul 23, 18:35 UTC50m
2026-07-23 UAL2051 SFO → YVR Jul 23, 12:50 UTCJul 23, 16:05 UTC3h 15m
2026-07-23 UAL1763 SFO → AUS Jul 23, 01:50 UTCJul 23, 04:50 UTC3h 0m
2026-07-22 UAL442 DEN → LGA Jul 22, 20:50 UTCJul 23, 00:05 UTC3h 15m
2026-07-22 UAL1326 SFO → BNA Jul 22, 16:12 UTCJul 22, 19:14 UTC3h 2m
2026-07-22 UAL1326 SFO → BNA Jul 22, 16:05 UTCJul 22, 19:15 UTC3h 10m
2026-07-21 UAL3928 FRA → EWR Jul 21, 20:35 UTCJul 21, 21:25 UTC50m
2026-07-21 UAL3928 FRA → EWR Jul 21, 20:03 UTCJul 21, 21:22 UTC1h 19m
2026-07-20 UAL2811 CLE → SFO Jul 20, 14:25 UTCJul 20, 16:34 UTC2h 9m
2026-07-20 UAL2811 CLE → SFO Jul 20, 01:55 UTCJul 20, 16:25 UTC14h 30m
2026-07-19 UAL720 PHL → DEN Jul 19, 21:10 UTCJul 19, 23:40 UTC2h 30m
2026-07-19 UAL2787 - Jul 19, 17:10 UTCJul 19, 19:40 UTC2h 30m
2026-07-19 UAL2838 HKG → SFO Jul 19, 14:10 UTCJul 19, 15:20 UTC1h 10m
2026-07-19 UAL1436 BOS → ORD Jul 19, 00:45 UTCJul 19, 01:45 UTC1h 0m
2026-07-18 UAL1762 - Jul 18, 20:20 UTCJul 18, 23:25 UTC3h 5m
2026-07-18 UAL2427 - Jul 18, 17:15 UTCJul 18, 19:15 UTC2h 0m
2026-07-18 UAL1857 - Jul 18, 14:40 UTCJul 18, 16:00 UTC1h 20m
2026-07-18 UAL1857 FSD → ORD Jul 18, 14:41 UTCJul 18, 15:46 UTC1h 5m
2026-07-18 UAL1842 - Jul 18, 04:35 UTCJul 18, 05:45 UTC1h 10m
2026-07-18 UAL1476 DEN → EUG Jul 18, 01:10 UTCJul 18, 02:25 UTC1h 15m
2026-07-17 UAL2207 - Jul 17, 21:50 UTCJul 17, 22:49 UTC1h 0m
2026-07-17 UAL2605 - Jul 17, 19:45 UTCJul 17, 20:25 UTC40m
2026-07-17 UAL2807 ORD → ORF Jul 17, 16:44 UTCJul 17, 17:15 UTC30m
2026-07-17 UAL2807 ORD → ORF Jul 17, 16:16 UTCJul 17, 17:23 UTC1h 7m
2026-07-17 UAL1857 FSD → ORD Jul 17, 12:50 UTCJul 17, 14:00 UTC1h 10m
2026-07-17 UAL1842 - Jul 17, 02:59 UTCJul 17, 04:10 UTC1h 10m
2026-07-16 UAL3920 GVA → IAD Jul 16, 22:25 UTCJul 17, 00:45 UTC2h 20m
2026-07-16 UAL3920 GVA → IAD Jul 16, 21:51 UTCJul 17, 00:23 UTC2h 32m
2026-07-12 UAL4210 - Jul 12, 17:55 UTCJul 12, 18:35 UTC40m
2026-07-11 UAL456 DEN → AUS Jul 11, 14:18 UTCJul 11, 15:50 UTC1h 32m
2026-07-11 UAL456 DEN → AUS Jul 11, 14:10 UTCJul 11, 15:55 UTC1h 45m
2026-07-11 UAL2447 - Jul 11, 02:05 UTCJul 11, 02:35 UTC30m
2026-07-10 UAL2447 - Jul 10, 21:55 UTCJul 10, 23:40 UTC1h 45m
2026-07-10 UAL1026 DEN → AUS Jul 10, 18:40 UTCJul 10, 20:20 UTC1h 40m

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 N458UA page for operator, model, and routing details .

Mode-S A59197 frequently asked

What is Mode-S code A59197?
A59197 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N458UA.
Where is Mode-S A59197 registered?
Mode-S code A59197 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 A59197 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A59197, octal 51310627, decimal 10,850,711.
What flights does A59197 operate?
Mode-S A59197 has broadcast 20 distinct callsigns, including UAL333, UAL1843, UAL817, UAL718, UAL2424.