PhonyRails normalizes phone numbers in such a way that they fail their own validations...

gistfile1.rb

# PhonyRails + Faker
1000.times do
  num = PhonyRails.normalize_number(Faker::PhoneNumber.short_phone_number, country_code: 'US')
  sizes << num.size
end

sizes.count { |s| s == 9 }   # => 22
sizes.count { |s| s == 10 }  # => 180
sizes.count { |s| s == 11 }  # => 797


# PhonyRails + 10-digit number
1000.times do
  num = PhonyRails.normalize_number(rand(1011011000..9999999999).to_s, country_code: 'US')
  sizes << num.size
end

sizes.count { |s| s == 9 }    # => 15
sizes.count { |s| s == 10 }   # => 92
sizes.count { |s| s == 11 }   # => 893


# Just Faker
1000.times do
  num = Faker::PhoneNumber.short_phone_number
  sizes << num.size
end

sizes.count { |s| s == 9 }   # => 0
sizes.count { |s| s == 10 }  # => 0
sizes.count { |s| s == 11 }  # => 0
sizes.count { |s| s == 12 }  # => 1000


# Just 10-digit numbers
1000.times do
  num = rand(1011011000..9999999999).to_s
  sizes << num.size
end

sizes.count { |s| s == 9 }   # => 0
sizes.count { |s| s == 10 }  # => 1000