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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
- 30 Sept 2026, 18:53
- Logged visits
- 673
The station's story
- Cumulative contact time
- 260 h
- Distinct days
- 368
- Highest captured altitude
- 39,025 ft
- Discovery rank
- #10,291 of 60,421
- Longest contact
- 2 h 53 min
Observed callsigns
UAL (631 contacts, 2016-2026)
Operator as per the registry of 12 Oct 2026; observed callsigns are the freshest measurement.
Visits
| Callsign | Route | First contact | Last contact | Altitude at end of contact | Positions |
|---|---|---|---|---|---|
| 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 |
| UAL52 | KIAD > LSZH | 3 Nov 2025, 06:283 Nov 2025 | 3 Nov 2025, 06:46 | 12,075 ft | 1,263 |
| UAL53 | LSZH > KIAD | 2 Nov 2025, 12:102 Nov 2025 | 2 Nov 2025, 12:31 | 32,025 ft | 1,378 |
| UAL52 | KIAD > LSZH | 2 Nov 2025, 05:532 Nov 2025 | 2 Nov 2025, 06:15 | 13,825 ft | 1,583 |
| UAL53 | LSZH > KIAD | 28 Oct 2025, 11:0928 Oct 2025 | 28 Oct 2025, 11:32 | 30,000 ft | 1,086 |
| UAL52 | KIAD > LSZH | 28 Oct 2025, 05:3828 Oct 2025 | 28 Oct 2025, 05:59 | 12,875 ft | 1,414 |
| not transmitted | route not resolved | 14 Oct 2025, 14:2514 Oct 2025 | 14 Oct 2025, 14:28 | 30,025 ft | no position received |
| UAL52 | KIAD > LSZH | 14 Oct 2025, 11:0814 Oct 2025 | 14 Oct 2025, 11:31 | 12,850 ft | 739 |
| UAL53 | LSZH > KIAD | 13 Oct 2025, 13:0713 Oct 2025 | 13 Oct 2025, 13:24 | 31,975 ft | 747 |
| UAL52 | KIAD > LSZH | 13 Oct 2025, 07:3913 Oct 2025 | 13 Oct 2025, 08:01 | 13,625 ft | 1,399 |
| UAL53 | LSZH > KIAD | 7 Oct 2025, 12:307 Oct 2025 | 7 Oct 2025, 12:47 | 30,025 ft | 878 |
| UAL52 | KIAD > LSZH | 7 Oct 2025, 07:507 Oct 2025 | 7 Oct 2025, 08:12 | 12,750 ft | 1,110 |
