Interesting Telephone Number

A close family member got a new Cell Phone recently, and I was intrigued by the number. The 7 digit number contains each digit 1 to 7, with the three even digits as the exchange, and the four odd digits as the number (EEE-OOOO). Also, the area code is a combination of the digits 8, 9, and 0. It's a perfect ten digit phone number that uses every digit exactly once. So which do you think is more rare, the fact that the 7 digit number uses 1-7 with the even and odd separated correctly, or that the 10 digit number contains every digit 0 to 9? It's fairly simple math to complete, but it's an interesting one to ponder before you put pencil to paper.

My phone number used to be 222-2239. The digits add up to 22. Very easy to remember.

Off the top of my head, the 10 digits being used once would be far more difficult than the eee-oooo possibility.

eee-oooo has to be rarer. The 0-9 can be in almost any position (0 can't be first), but there are far fewer ways to arrange the three even numbers in three possible positions.