I’m a bit puzzled by a behavior I’m observing when trying to add microdata to my page. Specifically, I have a link in my page that includes a phone number, which seems like a standard practice. I wanted to add itemprop="telephone" to this link. However, when I validate it using the validator at schema.org, it doesn’t seem to recognize the phone number.

using the following code:

<a itemprop="telephone" href="tel:000 00 00 00" title="... 000 00 00 00">000 00 00 00</a>

But if I wrap the link with a <p> tag and add itemprop="telephone" to the <p> tag like this:

<p itemprop="telephone">
    <a href="tel:000 00 00 00" title="... 000 00 00 00">
        000 00 00 00
    </a>
</p>

…it works as expected.

Can anyone shed some light on why I can’t directly apply itemprop="telephone" to the tag? Thanks in advance!