mtcnet.net has been around since 1996, which would normally be a strong vote of confidence. But when you visit the site today, it immediately sends you to www.mypremieronline.com — a different domain entirely — and the SSL certificate it presents doesn't even belong to mtcnet.net. That combination is hard to square with a legitimate telecom or business operation.
Most established telecom companies maintain their own branded website with valid security certificates and clear contact information. Here, you get a redirect and a certificate error that makes the site unreachable over a secure connection. The domain is old and the server infrastructure works on a basic level, but the current behavior is what matters for anyone thinking about doing business with mtcnet.net. If you landed here expecting a specific service, verify directly with the company you are trying to reach rather than trusting this domain.