Convert CIDR to IP Range
Use the free CIDR to IP range converter and retrieve your IP range details in seconds. Just enter your CIDR notation in the provided field and hit ‘Convert.’
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Or - convert IP to CIDRCIDR to IP Range Converter
How to use the CIDR to IP range converter
To use the CIDR to IP range converter, you’ll just need to provide a value for the CIDR notation.
CIDR consists of an IPv4 address followed by the bitmask (e.g., 192.168.1.0/24). The first number is the prefix, while the latter is the netmask (number of reserved bits).
Then, just hit ‘Convert’ to get your IP range details.
Why convert CIDR to IP range?
Using the IP range converter gives you the freedom and agility to switch between CIDR notation and IP range for easier IP management.
Some administrators may still use classful addressing, making IP range necessary. Depending on your skill level, this may prove easier to understand.
Using the CIDR to IP range converter gives you all of the information you need to know for network management, including
- ✓ Start and end IP
- ✓ Netmask
- ✓ Total IPs in range
- ✓ Usable IPs in range
- ✓ Binary netmask
- ✓ Broadcast
- ✓ Wildcard mask
- ✓ Country & country code
- ✓ Class
CIDR to IP range use cases
Network management tool configuration
IP range and classful addressing is generally more accessible for most security specialists or network administrators to understand. Classful addressing is the predecessor of classless addressing, and most principles of the latter are based upon it.
With that in mind, some network managers may still rely on classful addressing. In these scenarios, it’s helpful to be able to convert CIDR to IP range quickly.
Email server configuration
Likewise, your company’s postmaster may have a server routed using classful addressing. For this, IP ranges would be used to route data packets as opposed to CIDR notation.
Note: Classful addressing is widely considered obsolete, as CIDR (classless addressing) provides more flexibility and significantly reduces IPv4 waste. You can convert to CIDR using our free tool below.
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Frequently asked questions
A CIDR to IP range converter rapidly converts a CIDR block notation into an IP range with a starting and ending IP address. The converter also yields other helpful information, including the total number of usable IPs in the range as well as the class type.
Classless Inter-Domain Routing (CIDR) routes data to IP addresses based on the IP prefix or subnet mask rather than the IP class.
IP or an IP range is considered classful addressing, while CIDR, by both name and definition, is classless addressing. Classful addressing separates IPv4 addresses into 5 classes (A, B, C, D, and E). Classless addressing doesn’t use these classes but instead relies on the IP’s subnet mask for addressing.
Classful addressing is a primarily obsolete form of inter-domain routing and has no real advantage over classless routing. However, some network administrators still work with classful architectures or use ideas based on those concepts.
Classful IP routing is based upon five set classes with no room for deviation. As a result, a large number of IP addresses are wasted when there are already fewer IPv4 addresses available. Classless addressing, aka CIDR notation, overcomes this issue by routing based on the subnet mask rather than class.
