where do I get the telephone number for the listed cars

Hello Beaufordwatson, You can reach Buick Customer Assistance Center (CAC) at 800-521-7300. This number will provide customer assistance for Buick vehicles. Buick Customer Service can be reached Mon to Sat, 8am to 9pm ET; Closed Sunday. Hope this information was helpful. Vanessa GM Customer Service

Vanessa he isn't asking for Buick customer service, he is asking for the number of one of the dealers on this website. Your information is never helpful. Ugh.... The phone number should be on the sellers page in the contact info. After looking at the vehicles page there should be a link to the seller and on that page is all the info you need.