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Aircraft
N644UA
Common
- Mode S hex
- A875DA
- Manufacturer
- Boeing
- Serial number
- 25094
- Year built
- 199135 years old
- Operator
- United Airlines Inc (UAL)
- Country of registration
- États-UnisICAO address allocated by United States, aircraft registered in États-Unis.
- First contact
- 9 May 2016, 06:59
- Last contact
- 9 Aug 2026, 12:13
- Logged visits
- 659
The station's story
- Cumulative contact time
- 255 h
- Distinct days
- 360
- Highest captured altitude
- 39,025 ft
- Discovery rank
- #10,242 of 57,065
- Longest contact
- 2 h 53 min
Observed callsigns
UAL (617 contacts, 2016-2026)
Operator as per the registry of 21.07.2026; observed callsigns are the freshest measurement.
Visits
| Callsign | Route | First contact | Last contact | Altitude at end of contact | Positions |
|---|---|---|---|---|---|
| UAL748 | KORD > KSEA | 3 Mar 2026, 06:563 Mar 2026 | 3 Mar 2026, 07:27 | not transmitted | 2,217 |
| UAL749 | KCVG > KDEN | 28 Feb 2026, 11:2228 Feb 2026 | 28 Feb 2026, 11:56 | 31,975 ft | 1,313 |
| UAL748 | KORD > KSEA | 28 Feb 2026, 06:4728 Feb 2026 | 28 Feb 2026, 07:19 | not transmitted | 2,634 |
| UAL749 | KCVG > KDEN | 8 Jan 2026, 11:478 Jan 2026 | 8 Jan 2026, 14:36 | 28,050 ft | 1,535 |
| UAL748 | KORD > KSEA | 8 Jan 2026, 06:528 Jan 2026 | 8 Jan 2026, 07:23 | not transmitted | 2,889 |
| UAL53 | LSZH > KIAD | 31 Dec 2025, 12:1031 Dec 2025 | 31 Dec 2025, 12:27 | 32,000 ft | 1,119 |
| UAL52 | KIAD > LSZH | 31 Dec 2025, 07:2231 Dec 2025 | 31 Dec 2025, 07:36 | 13,925 ft | 953 |
| UAL749 | KCVG > KDEN | 30 Dec 2025, 11:3030 Dec 2025 | 30 Dec 2025, 12:05 | 34,000 ft | 1,617 |
| UAL748 | KORD > KSEA | 30 Dec 2025, 07:1430 Dec 2025 | 30 Dec 2025, 07:53 | not transmitted | 3,152 |
| UAL885 | LIRF > KIAD | 20 Dec 2025, 12:1920 Dec 2025 | 20 Dec 2025, 12:30 | 30,000 ft | 475 |
| UAL53 | LSZH > KIAD | 19 Dec 2025, 12:0819 Dec 2025 | 19 Dec 2025, 12:24 | 30,025 ft | 981 |
| UAL52 | KIAD > LSZH | 19 Dec 2025, 07:2019 Dec 2025 | 19 Dec 2025, 07:34 | 13,600 ft | 1,035 |
| UAL749 | KCVG > KDEN | 16 Dec 2025, 11:2016 Dec 2025 | 16 Dec 2025, 11:54 | 30,000 ft | 1,331 |
| UAL748 | KORD > KSEA | 16 Dec 2025, 06:4916 Dec 2025 | 16 Dec 2025, 07:23 | not transmitted | 2,716 |
| UAL749 | KCVG > KDEN | 7 Dec 2025, 11:377 Dec 2025 | 7 Dec 2025, 12:04 | 31,975 ft | 1,525 |
| UAL748 | KORD > KSEA | 7 Dec 2025, 06:247 Dec 2025 | 7 Dec 2025, 07:09 | not transmitted | 2,316 |
| UAL53 | LSZH > KIAD | 30 Nov 2025, 12:1330 Nov 2025 | 30 Nov 2025, 12:26 | 30,000 ft | 641 |
| UAL52 | KIAD > LSZH | 30 Nov 2025, 06:5830 Nov 2025 | 30 Nov 2025, 07:16 | 12,975 ft | 1,242 |
| UAL749 | KCVG > KDEN | 21 Nov 2025, 11:1421 Nov 2025 | 21 Nov 2025, 11:53 | 34,025 ft | 1,918 |
| UAL748 | KORD > KSEA | 21 Nov 2025, 07:0321 Nov 2025 | 21 Nov 2025, 07:35 | not transmitted | 2,145 |
| UAL53 | LSZH > KIAD | 8 Nov 2025, 12:188 Nov 2025 | 8 Nov 2025, 12:20 | 32,025 ft | 38 |
| UAL52 | KIAD > LSZH | 8 Nov 2025, 06:508 Nov 2025 | 8 Nov 2025, 07:09 | 13,025 ft | 1,605 |
| UAL749 | KCVG > KDEN | 6 Nov 2025, 11:076 Nov 2025 | 6 Nov 2025, 11:47 | 34,000 ft | 1,480 |
| UAL748 | KORD > KSEA | 6 Nov 2025, 06:556 Nov 2025 | 6 Nov 2025, 07:21 | not transmitted | 2,234 |
| not transmitted | route not resolved | 3 Nov 2025, 12:203 Nov 2025 | 3 Nov 2025, 12:22 | 30,000 ft | 1 |
