Is there a problem with the domain name registered in networksolutions without dns server informatio

I created some domain names in networksolutions.
But their dns server did not appear, try to contact online customer service, but those customer service almost do not understand anything, I hope there can be friends to help me solve! Thank you very much for the friends of the forum.
Some domain names are:
Wugangbiao.net
Anhuiweishi.net
Arcaderhino.net
Yalejiaonang.net
Oushidsq.net
Below is a screenshot of the whois information query. The dns server name cannot be found in the public area.