How do we check consistency of addresses and other test targets

The problem is the following:

In some tests, for example whatsapp, facebook_messenger, but even web_connectivity, we have the need to determine if a certain IP is valid in a specific "context".
For example if a given IP is a known IP used by the whatsapp service.

Currently we do this using the ASN database, but in light of the Maxmind issues, we may have to stop using that and why not think if there is a better way all-together to do this.

Possible options being discussed are:

• Creating our own AS or similar database of IP prefixes and shipping it to clients
• Creating a service that we speak to during the testing to check for consistency
• Doing this analysis during the upload to the collector process

cc @fortuna @FedericoCeratto