Amazon CloudWatch Internet Monitor, an internet traffic monitoring service for AWS applications that gives you a global view of traffic patterns and health events, now displays IPv4 prefixes in its console dashboard. Using this data in Internet Monitor, you can get more details about your application traffic and health events. For example, you can do the following:
View the IPv4 prefixes associated with a client location that is impacted by a health event
View IPv4 prefixes associated with a client location
Filter and search traffic data by the network associated with an IPv4 prefix or IPv4 address
Source:: Amazon AWS