Pronunciation of telephone numbers.

Can someone tell me what the correct way is to pronounce these telephone numbers.

"560-7890" Is it "Five sixty seventy-eight ninety" or "five six zero seven eight nine zero"

"510-6789" "Five ten sixty-seven eighty-nine" or "five one zero six seven eight nine"

"897-6534" "Eight seventy-nine sixty-five thirty-three" or "eight nine seven six five three four"

In the United States, the second option is used. When giving someone our telephone number, we say each number individually and include the area code.

The digit "0" can also be pronounced "oh". Personally, I prefer to say zero.

The pronunciation of zero as "oh" in telephone numbers is far more common than pronouncing it as "zero", at least in the United States. A few people do insist that it should be pronounced "zero", reserving "oh" for the letter O, but in common usage, either is correct.

- Kef

The individual digits in the number are normally pronounced separately, but area codes and perhaps other special cases can be pronounced as a numeric quantity.

US Examples:

1-800-123-4567 = "one eight hundred one two three four five six seven".

1-914-xxx-xxx can be pronounced as "one nine fourteen xxxxxx" or "one nine one four xxxxxxx".

I suppose special commercial numbers can also be pronounced as quantities:

123-7000 could be one two three, seven thousand.