# Pro-One Services LLC Pro-One Services LLC is an ITIN acceptance agent in Corning, California, United States. ## Details - Address: 4859 Barham Avenue, Corning, California, 96021, United States - Phone: [530-966-3278]() - Source note: IRS Acceptance Agent Program list for California (page last reviewed 24-Sep-2026; retrieved 2026-10-02). US federal public domain (17 U.S.C. 105). ## Questions ### Where is Pro-One Services LLC? Pro-One Services LLC is at 4859 Barham Avenue, Corning, California, 96021, United States. ### How do I contact Pro-One Services LLC? To contact Pro-One Services LLC, call 530-966-3278. ## Source From [U.S. Internal Revenue Service](https://www.irs.gov/individuals/international-taxpayers/acceptance-agents-california), license Public domain (17 U.S.C. 105; irs.gov content use terms request credit), checked 2026-10-03. Last updated October 3, 2026. ## Links - This ITIN acceptance agent on the [web page]() - [Certifying acceptance agents in Corning]() - [IRS acceptance agents in Corning]() - [More ITIN acceptance agents in Corning]()