ContributionsMost RecentMost LikesSolutionsDear Cox, why is my blocking phone number ability limited to ONLY 30 numbers? I must get three spam calls a day and must clear the numbers too often. How about UNLIMITED blocked numbers ? PLEASE! Dear Cox, why is my blocking phone number ability limited to ONLY 30 numbers? I must get three spam calls a day and must clear the numbers too often. How about UNLIMITED blocked numbers ? PLEASE!