Having a different class C IP hosting address is like having a large company with multiple subsidies therefore monopolizing the market with your products and services scattered every corner. Having a different class C IPs will increase your ranking in the search engine result pages by creating links and websites that cannot be detected by search engine to be interrelated therefore marking it as spam is wuite impossible because search engine will not detect any relationships with these different class C IPs.
In the world of SEO having a different IP address does really have an advantage but also some disadvantages as this same method that could be employed to boost your web page ranking, could also be employed by black hat SEOs to destroy your SERP ranking. It is an unethical strategy but it does exist and Google cannot do a major thing about it at the moment.
If you are going to establish a big business online, it pays to purchase a package of class C IPs to equip your site with a tool that could promote it in search engine result pages and could protect your site to maintain its position in SERP rankings. It is a continuous endeavor that site owners need to maintain as long as quantitative SEO is concern. Click on here to know more about the benefits of class C IPs.