Streaming Video on Demand (VoD) is one of the best way to enjoy entertainment on the Internet. High-speed Internet is required to be able to enjoy streaming VoD. The high speed internet available today boosted the VoD usage trends. However, there were cases when client could not streaming VoD because the portnumber is being blocked by firewall. In order to solve this problem VoD providers must be able to provide their service using another port. The purpose of the research was to understand the performance of QoS streaming VoD using non-standard portnumbers by IANA. The purpose of using cloud computing was to reduce cost of the research. The results showed that using variation of the portnumber on VoD didn’t have any effect to the parameters of throughput and delay but on packet loss there were fluctuations occurs almost throughout experiments. The value of throughput was 2.82 Mbps. This value haven't changed for all configurations. The value of delay for two users using portnumber 80; 443 and 554 was 85.4 ms; 86.2 ms and 86.4 ms, while for 4 users using portnumber 80; 443 and 554 was 85 ms; 86.6 ms and 85.2 ms. And value of percentage average packet loss for two users using portnumber 80; 443 and 554 was 0.021%; 0.046% and 0.001%, while for four users using portnumber 80; 443 and 554 was 0.02%; 0.145% and 0.135%.Index Terms—Cloud Computing, PortNumber, QoS, VoD.