CIDR Boundary Alignment

Check if IP addresses, ranges, and CIDR blocks align to specific prefix boundaries

Quick Examples

Network Inputs

Enter one per line: CIDR blocks (192.168.1.0/24), IP ranges (10.0.0.1-10.0.0.100), or single IPs (172.16.1.5)
Prefix length to check alignment against (0-32 for IPv4, 0-128 for IPv6)