Probably more than those who used the letter prefixes. I remember our 527-xxxx was JA7-xxxx. I don't remember ever telling anyone the "JA7" version of our home

Probably more than those who used the letter prefixes. I remember our 527-xxxx was JA7-xxxx. I don't remember ever telling anyone the "JA7" version of our home number, but it was the way we remembered our doctor's number. I feel old.