The answer to this question depends on the specific situation and the reason why the ISP is blocking the .com domain. In some cases, the ISP may be blocking the domain because of malicious activity or a violation of their terms of service. In other cases, the ISP may be blocking the domain for security reasons, such as to prevent phishing or other scams. Regardless of the reason, it is important to contact the ISP to determine why they are blocking the domain and to see if there is a way to resolve the issue.