: This part could refer to a subnet or a subnetwork, possibly within a larger network or a specific context like a biological network, a computer network, or even a financial network. The prefix "FB" might stand for something specific depending on the context, such as "Facebook" (if related to social media), "Federal Bank" (if financial), or something else entirely.
. The "+l+new" likely represents a search for the latest updates or "new likes" and follower tools provided by the site. fbsubnet+l+new