CIDR to IP Range Converter
Enter a CIDR (IPv4 or IPv6) to instantly see the start and end IP addresses in the range.
Results
Instructions
- Enter a valid CIDR notation (e.g., 192.168.1.0/24 or 2001:db8::/32).
- Click "Convert" to see the start and end IP addresses for the range.
- Both IPv4 and IPv6 CIDRs are supported.
- If the CIDR is invalid, an error will be shown.
Example: - Input: 192.168.1.0/24 - Output: Start IP: 192.168.1.0, End IP: 192.168.1.255
Frequently Asked Questions (FAQs)
What is CIDR notation?
CIDR (Classless Inter-Domain Routing) is a way to specify IP address ranges using a base address and a prefix length (e.g., 192.168.1.0/24).
Can I use IPv6 CIDRs?
Yes, both IPv4 and IPv6 CIDRs are supported.
What happens if I enter an invalid CIDR?
The tool will show an error message and no IPs will be displayed.
Are the start and end IPs always included in the range?
Yes, the start and end IPs represent the full range covered by the CIDR.
API Usage
POST /tools/cidr-to-ip-range/api/
Request Body: { "cidr": "192.168.1.0/24" }
Response: { "start_ip": "192.168.1.0", "end_ip": "192.168.1.255" }