Using a phone number in Metas does not impact SEO but for sure is a good way to market your service and might lead to some good conversions. But that too need to be tracked whether that generates some enquiry. There might be a probability that the user might not land up to the page and call directly and hence you might not be able to track the conversion source. Using phone number is good where you can track the conversions, that’s why it’s generally good idea to use numbers as click to call or in adwords with call to action as a number and track that. Also you can use numbers in Extended Sitelinks Moreover you can add mobile/phone number/ email in contact metas. <meta /> Note: Meta description tag text should be typically highly relevant and should not contain more than 25 words as Google will show only around 20 to 25 words.