As you may remember, Matt Cutts and the Google web spam team is not all that happy with phone number sites. They simply dislike how many of them do not add "value add" to the experience and thus have gone after them for the past couple years.
More interesting to me is the conversation Google's Matt Cutts had with one of these site operators, Whocalld, over the weekend on Twitter.
The first tweet was initiated by Whocalld complaining that the site is not spam:
Even after manual review, Google is still incorrectly penalizing my site as "pure spam", without explaining why. @mattcutts— Whocalld ☎ (@Whocalld) June 8, 2014
Then add the end, Whocalld basically admits that all, including their site, is spam.
@mattcutts If it's this complicated, I'd be fine with Google marking all the phone number sites as "pure spam". They all are basically.— Whocalld ☎ (@Whocalld) June 9, 2014
Here is a picture of the tweet, just in case they decide to remove it later.
If you read through the conversation, you'd find it fairly interesting. Again, here is the whole thread, if it is partially deleted (click to enlarge):
Now, Matt Cutts may be having his team go through this again and weed out even more phone number sites from Google:
@Whocalld I'm happy to ask a webspam analyst to do a quick sweep for newer phone number sites that are essentially keyword stuffing with #'s— Matt Cutts (@mattcutts) June 9, 2014
Forum discussion at Twitter.