Phone Number on website showing up blue on an iPhone

In header meta tag

<meta name="format-detection" content="telephone=no" />

Number write like this

<span>(873)984-0923</span>

(OR)

hat is the default iOS behaviour - to rectify try putting ASCII characters between the digits.

For example, the number 111 111 1111 would go to 111 111 1111 

or the number 111-111-111 would go to 111–111–1111–