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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 |
|---|---|---|---|---|---|
| UAL322 | KDCA > KIAH | 5 Jul 2026, 10:405 Jul 2026 | 5 Jul 2026, 11:05 | 32,025 ft | 1,104 |
| UAL321 | KDCA > KIAH | 5 Jul 2026, 06:345 Jul 2026 | 5 Jul 2026, 06:55 | 34,000 ft | 1,193 |
| UAL322 | KDCA > KIAH | 4 Jul 2026, 10:264 Jul 2026 | 4 Jul 2026, 10:50 | 32,000 ft | 525 |
| UAL321 | KDCA > KIAH | 4 Jul 2026, 06:524 Jul 2026 | 4 Jul 2026, 07:14 | 37,000 ft | 1,137 |
| UAL3937 | route not resolved | 30 Jun 2026, 14:0830 Jun 2026 | 30 Jun 2026, 14:32 | 34,000 ft | 900 |
| UAL321 | KDCA > KIAH | 29 Jun 2026, 07:0529 Jun 2026 | 29 Jun 2026, 07:36 | 37,000 ft | 1,162 |
| UAL322 | KDCA > KIAH | 27 Jun 2026, 10:3127 Jun 2026 | 27 Jun 2026, 10:51 | 32,000 ft | 713 |
| UAL321 | KDCA > KIAH | 27 Jun 2026, 06:0927 Jun 2026 | 27 Jun 2026, 06:40 | 37,025 ft | 2,069 |
| UAL127 | EIDW > KIAD | 24 Jun 2026, 16:4324 Jun 2026 | 24 Jun 2026, 16:55 | 32,000 ft | 360 |
| UAL126 | KIAD > EIDW | 24 Jun 2026, 12:0524 Jun 2026 | 24 Jun 2026, 12:29 | 39,000 ft | 764 |
| UAL127 | EIDW > KIAD | 23 Jun 2026, 17:1323 Jun 2026 | 23 Jun 2026, 17:34 | 32,025 ft | 629 |
| UAL126 | KIAD > EIDW | 23 Jun 2026, 11:4723 Jun 2026 | 23 Jun 2026, 12:12 | 37,000 ft | 504 |
| UAL53 | LSZH > KIAD | 22 Jun 2026, 12:4122 Jun 2026 | 22 Jun 2026, 12:47 | 32,000 ft | 64 |
| UAL52 | KIAD > LSZH | 22 Jun 2026, 07:3122 Jun 2026 | 22 Jun 2026, 07:46 | 12,800 ft | 994 |
| UAL322 | KDCA > KIAH | 16 Jun 2026, 10:2316 Jun 2026 | 16 Jun 2026, 10:47 | 32,025 ft | 833 |
| UAL321 | KDCA > KIAH | 16 Jun 2026, 06:3016 Jun 2026 | 16 Jun 2026, 06:53 | 34,000 ft | 1,171 |
| UAL243 | KPDX > KTPA | 10 Jun 2026, 10:3310 Jun 2026 | 10 Jun 2026, 10:56 | 31,975 ft | 933 |
| UAL242 | KPDX > KORD | 10 Jun 2026, 07:0810 Jun 2026 | 10 Jun 2026, 07:09 | 36,325 ft | 17 |
| UAL322 | KDCA > KIAH | 30 May 2026, 10:3630 May 2026 | 30 May 2026, 10:57 | 32,000 ft | 828 |
| UAL321 | KDCA > KIAH | 30 May 2026, 06:5330 May 2026 | 30 May 2026, 07:15 | 34,325 ft | 1,124 |
| UAL127 | EIDW > KIAD | 28 May 2026, 16:4528 May 2026 | 28 May 2026, 17:01 | 36,000 ft | 461 |
| UAL126 | KIAD > EIDW | 28 May 2026, 11:5528 May 2026 | 28 May 2026, 12:21 | 37,000 ft | 626 |
| UAL322 | KDCA > KIAH | 25 May 2026, 10:2925 May 2026 | 25 May 2026, 10:52 | 34,000 ft | 364 |
| UAL321 | KDCA > KIAH | 25 May 2026, 06:4125 May 2026 | 25 May 2026, 07:04 | 35,000 ft | 1,208 |
| UAL243 | KPDX > KTPA | 22 May 2026, 10:3722 May 2026 | 22 May 2026, 10:58 | 36,000 ft | 836 |
