Caller ID Not Showing Numbers

Same here on iPhone.

Looking for a solution.

Here are some suggestions from MacReports

https://macreports.com/wrong-caller-id-showing-on-iphone-ios-14/

Good Luck

I was having the same issue on my Xfinity Mobile iPhone.  It started two or three weeks ago, the day before Xfinity Mobile texted me about the fact that they would start flagging "Potential Spam" calls.

Chat support, working with Tier 2, was able to fix this for me remotely, reverting my line back to the prior behavior where the number is shown when a call from a non-Contact comes in.  I was very pleased, and it only took one chat session.  (After the chat bot was -- as expected -- unable to help, I had entered "customer service" ...or was it "representative"? ...to get a live rep.)  The issue was apparently unrelated to my phone or its settings.  Fyi, though, I am still on iOS 13.6.

I had the same issue and was missing many calls due to this. Just having it show UNKNOWN NUMBER/NAME isn't helpful without seeing the phone number. I too contacted support and they removed the spam block feature for me very quickly!

Glad it worked out for you too.

After getting *that* solved I had a new caller i.d. issue.  Not as big a deal as the "UNKNOWN NAME" etc. issue, but when I got an upgrade to an Xfinity Mobile iPhone SE 2020 a few days ago, the incoming call screen from non-contacts always showed "United States" at the top, followed by the number.  No more city & state.  (The data in Recents after the call was still as expected.)

Fortunately this one was solved by upgrading from iOS 14.01 (which the phone came with) to the latest official version, 14.2.  Based on things I read, this issue had nothing to do with Xfinity Mobile or any other carrier, even though Apple support was trying to tell people it was their carrier's fault.  But customers from Xfinity, Verizon, ATT & T-Mobile were all reporting the same issue, so Apple's response of course rang hollow.  Glad they ultimately identified and fixed the problem.

I've called support three times and they tell me they have no idea what I'm talking about and this can't be turned off, even when I show them these posts. 

Despite the solution in my case, that I posted about 11-27-20*, today I was surprised to get an "UNKNOWN NAME" call.  But fortunately the non-contact calls since then have shown the number on the call screen.  So, hopefully that was a one-off.

*Dang, Xfinity, did your otherwise-fine new forums format have to adapt that anti-date attitude that plagues many/most forums these days ("today, "17 minutes ago," "1 hour ago", "today", 5 days ago," "2 months ago, "2 years ago")?  The only way I knew the post I refer to was made on 11-27-20 is because I had created and saved a pdf of the thread during the previous format.  It's the first of my two "5 months ago" posts here, at least as of the date I post this, which is 4-29-21  (the fact that I had to add these clarifications just to specify a previous post demonstrates the COUNTER-productiveness of relative dates).  At least you still include the actual date on the first post of each thread.  Are actual dates *really* that hard for people to relate to?) Are people soon going to start referring to Independence Day as "245 Years Ago" instead of "July 4th?"  And then next year "246 years Ago"?  Or refer to their birthdays as "XX years ago" instead of having to deal with that pesky and difficult specific date?  I know this mini-rant seems OT, but maybe not-so-much for a topic heading that includes the words "Not Showing Numbers."

my caller ID went out, a year ago!!!!! comes up on TV as unknown caller and machine said private caller. i have called them over 20 times, NO HELP now i need a phone jack in new office, in garage NO HELP time to switch to new vendor.....

What's funny about Xfinity Mobile caller ID is that they will only show number, state, and city but Verison (this is the same service Xfinity Mobile is using) will show the name and number of the caller, this is so disappointing coming from Xfinity Mobile.