analysis Does Chinese have a hyphen on keyboard?

[Reallybigidea.com]

Hi,

According domain name sales Chinese prefers non hyphenated coms but according whois Chinese keeps domains with multiple hyphens

4-4-4-4.com Chinese owner

5-5-5-5-5.com

6-6-6-6-6-6.com

7-7-7-7-7-7-7.com (mine) previously owned by Chinese registrant

8-8-8-8-8-8-8-8.com Chinese owner

9-9-9-9-9-9-9-9-9.com

Do you have numeric dot coms with hyphen?