Subnet Cheat Sheet – 24 Subnet Mask, 30, 26, 27, 29, and other IP Address CIDR Network References
Basic IP Addressing and Troubleshooting Guide
What is an IP Address? (Types of IP Addresses & Definition)
Converting IP Addresses To And From Integer Values With ColdFusion
IP scanner PRTG - IP check, traffic & PING
amazon web services - What do the IP addresses(under source column) represent/or mean in Inbound and Outbound rules in AWS security groups? - Stack Overflow
Understanding IP Addressing and CIDR Charts — RIPE Network Coordination Centre