If you want to create a subdomain, you need DNS delegation (authorization) from the owner/manager of the domain. So if you want to register xyz.ci.pemberton.nj

If you want to create a subdomain, you need DNS delegation (authorization) from the owner/manager of the domain. So if you want to register xyz.ci.pemberton.nj.us, you need to ask for DNS delegation from the owner/manager of ci.pemberton.nj.us or a higher level. It's a lot easier to buy the xyz-ci-pemberton-nj.us domain.