Internet Assigned Numbers Authority (IANA) has assigned to ntop the 35632 PEN (Private Enterprise Number) number. This means for instance that nProbe extensions (e.g. HTTP and VoIP traffic monitoring) will be exported using IPFIX using a valid template that will be recognized by all flow collectors available in the market. A side effect is that whoever will use ntop/nProbe to monitor its own network or code monitoring extensions will be able to export them using a uniform template that will be handled by all applications. This is a major step for pushing open source applications even into commercial environments.