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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 60,422
- 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 |
|---|---|---|---|---|---|
| UAL3040 | route not resolved | 24 Jul 2025, 12:3724 Jul 2025 | 24 Jul 2025, 12:59 | 37,000 ft | 722 |
| UAL322 | KDCA > KIAH | 18 Jul 2025, 12:5918 Jul 2025 | 18 Jul 2025, 13:04 | 32,000 ft | 44 |
| UAL321 | KDCA > KIAH | 18 Jul 2025, 09:0318 Jul 2025 | 18 Jul 2025, 09:29 | 36,625 ft | 980 |
| UAL322 | KDCA > KIAH | 9 Jul 2025, 11:549 Jul 2025 | 9 Jul 2025, 12:19 | 30,025 ft | 705 |
| UAL321 | KDCA > KIAH | 9 Jul 2025, 08:089 Jul 2025 | 9 Jul 2025, 08:31 | 36,650 ft | 1,016 |
| UAL53 | LSZH > KIAD | 30 Jun 2025, 12:5430 Jun 2025 | 30 Jun 2025, 12:59 | 30,000 ft | 39 |
| UAL52 | KIAD > LSZH | 30 Jun 2025, 07:5630 Jun 2025 | 30 Jun 2025, 08:14 | 10,900 ft | 965 |
| UAL749 | KCVG > KDEN | 29 Jun 2025, 10:5429 Jun 2025 | 29 Jun 2025, 11:36 | 29,675 ft | 1,163 |
| not transmitted | route not resolved | 29 Jun 2025, 10:0929 Jun 2025 | 29 Jun 2025, 10:09 | not transmitted | no position received |
| UAL748 | KORD > KSEA | 29 Jun 2025, 06:5529 Jun 2025 | 29 Jun 2025, 07:27 | not transmitted | 1,936 |
| UAL127 | EIDW > KIAD | 19 Jun 2025, 16:4319 Jun 2025 | 19 Jun 2025, 16:56 | 32,000 ft | 330 |
| UAL126 | KIAD > EIDW | 19 Jun 2025, 11:3919 Jun 2025 | 19 Jun 2025, 12:02 | 37,000 ft | 680 |
| UAL127 | EIDW > KIAD | 18 Jun 2025, 16:4818 Jun 2025 | 18 Jun 2025, 17:00 | 32,025 ft | 319 |
| UAL126 | KIAD > EIDW | 18 Jun 2025, 11:5218 Jun 2025 | 18 Jun 2025, 12:17 | 35,000 ft | 1,043 |
| UAL749 | KCVG > KDEN | 17 Jun 2025, 10:5017 Jun 2025 | 17 Jun 2025, 11:24 | 34,000 ft | 1,178 |
| UAL748 | KORD > KSEA | 17 Jun 2025, 07:1117 Jun 2025 | 17 Jun 2025, 07:44 | not transmitted | 1,995 |
| UAL53 | LSZH > KIAD | 16 Jun 2025, 12:3316 Jun 2025 | 16 Jun 2025, 12:40 | 32,000 ft | 162 |
| UAL52 | KIAD > LSZH | 16 Jun 2025, 07:1116 Jun 2025 | 16 Jun 2025, 07:37 | 11,625 ft | 1,052 |
| UAL321 | KDCA > KIAH | 15 Jun 2025, 08:3315 Jun 2025 | 15 Jun 2025, 08:57 | 37,025 ft | 1,192 |
| UAL127 | EIDW > KIAD | 12 Jun 2025, 16:3512 Jun 2025 | 12 Jun 2025, 16:41 | 34,000 ft | 49 |
| UAL126 | KIAD > EIDW | 12 Jun 2025, 11:3312 Jun 2025 | 12 Jun 2025, 11:57 | 37,025 ft | 696 |
| UAL127 | EIDW > KIAD | 11 Jun 2025, 16:4211 Jun 2025 | 11 Jun 2025, 16:55 | 34,000 ft | 300 |
| UAL126 | KIAD > EIDW | 11 Jun 2025, 12:0811 Jun 2025 | 11 Jun 2025, 12:31 | 39,000 ft | 786 |
| UAL127 | EIDW > KIAD | 10 Jun 2025, 16:3510 Jun 2025 | 10 Jun 2025, 16:59 | 34,000 ft | 621 |
| UAL126 | KIAD > EIDW | 10 Jun 2025, 11:3810 Jun 2025 | 10 Jun 2025, 12:01 | 38,975 ft | 758 |
