Comes up as Ohio Citizens Action. They don't leave a message. From their website:
"Ohio Citizen Action is people like you who have joined together to prevent pollution. Non-profit and non-partisan, Ohio Citizen Action was founded in 1975.
Ohio Citizen Action practices door-to-door democracy across the state. We combine original, news-making research and an extraordinary ability to stay in touch with members door-to-door and on the phone. Citizen Action members make the most of whatever time they can spare: signing petitions, writing letters, making phone calls, talking to neighbors, posting yard signs, or speaking out at community meetings.
In the past fifteen years, Ohio Citizen Action has developed the ‘good neighbor campaign,’ which uses the power of community organizing to convince major industries to prevent pollution at their facilities. These campaigns have won changes far beyond what federal or state regulations would require at Eramet (Marietta), AK Steel (Middletown), Sunoco Refinery (Toledo), Brush Wellman (Elmore), Lanxess Plastics (Cincinnati), and many others."