Blocking 855 area code calls

Hi djam74,

Thanks for reaching out to Apple Support Communities. It sounds like you have a question about blocking calls. We're happy to help.

You can specific phone numbers from calling using the steps here: Block phone numbers, contacts, and emails on your iPhone, iPad, or iPod touch

Another options to consider is silencing unknown callers, you can view those steps here: Detect and block spam phone calls

The guide here can also help: Avoid unwanted calls on iPhone

You can also contact your carrier to see if they offer any services to help block unwanted or spam calls: Wireless carrier support and features for iPhone

Cheers!