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How many telephone numbers are there in the 509 area code? Telephone numbers may not start with the number 0 or 1. They also music not begin with 911 or 555. Do not consider other special circumstance

How many telephone numbers are there in the 509 area code? Telephone numbers may not start with the number 0 or 1. They also music not begin with 911 or 555. Do not consider other special circumstances.

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