Want to block area codes on iPhone 13 Pro

..MichaelRay1949..

Would a need to 'block' an entire Area Code, have something to do with

your iPhone receiving various random calls from spoofed or scam calls?

To block an entire Area Code is unlikely, and also improbable as well.

There are support articles in addition to user-tips from the Community

that could offer ideas on how to handle scams and phishing attack.

The iOS itself when updated, is careful to let few/no scams through.

Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

//support.apple.com/en-us/HT204759

A User-Tip Library has several Support Community items, and

cover a variety of topics; some along this line are among them.

User Tip Library - Apple Community

//discussions.apple.com/docs/DOC-250003491

Please describe more of what is happening, so other discussion

users may have better idea ~ why you think iPhone has those.

Trying to block area codes on iPhone 13 Pro

You can't, on the iPhone 13 or any other iPhone for that matter.

You can't do it on your phone but your cell carrier might be able to. Contact them.