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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
- 26 Sept 2026, 16:06
- Logged visits
- 669
The station's story
- Cumulative contact time
- 258 h
- Distinct days
- 366
- Highest captured altitude
- 39,025 ft
- Discovery rank
- #10,265 of 60,195
- Longest contact
- 2 h 53 min
Observed callsigns
UAL (627 contacts, 2016-2026)
Operator as per the registry of 28 Sept 2026; observed callsigns are the freshest measurement.
Visits
| Callsign | Route | First contact | Last contact | Altitude at end of contact | Positions |
|---|---|---|---|---|---|
| UAL242 | KPDX > KORD | 22 May 2026, 06:3222 May 2026 | 22 May 2026, 06:47 | 34,025 ft | 756 |
| UAL53 | LSZH > KIAD | 20 May 2026, 12:1520 May 2026 | 20 May 2026, 12:44 | 34,050 ft | 1,558 |
| UAL52 | KIAD > LSZH | 20 May 2026, 08:0420 May 2026 | 20 May 2026, 08:20 | 12,625 ft | 1,087 |
| UAL749 | KCVG > KDEN | 14 May 2026, 11:0414 May 2026 | 14 May 2026, 11:38 | 32,000 ft | 1,128 |
| UAL748 | KORD > KSEA | 14 May 2026, 06:5214 May 2026 | 14 May 2026, 07:17 | not transmitted | 2,198 |
| UAL53 | LSZH > KIAD | 11 May 2026, 12:1211 May 2026 | 11 May 2026, 12:37 | 34,000 ft | 1,246 |
| UAL52 | KIAD > LSZH | 11 May 2026, 07:2711 May 2026 | 11 May 2026, 07:47 | 14,100 ft | 1,145 |
| UAL53 | LSZH > KIAD | 7 May 2026, 12:217 May 2026 | 7 May 2026, 12:37 | 29,975 ft | 916 |
| UAL52 | KIAD > LSZH | 7 May 2026, 07:387 May 2026 | 7 May 2026, 08:03 | 13,025 ft | 1,390 |
| UAL749 | KCVG > KDEN | 3 Mar 2026, 11:183 Mar 2026 | 3 Mar 2026, 11:50 | 32,000 ft | 1,317 |
| 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 |
