On Recent calls page number selected gets area code changed

Example: Bringing up the 'Recent' calls page and selecting one, say 409-123-4567, that number is shown on the calling page but before it is dialed the area code will change to 617-123-4567. It does this on all 'Recent' calls but not 'Contacts' calls. I've deleted all Recent calls and have done a soft reset but the issue persists. Oh, a message pops up saying "SIM chip is changing number" prior to dailing.

Hi Paul. I wonder, did you change location/area or are you out of your number's area code? Also, can you tell me which phone you are using?

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