Free IP address lookup tool for checking an IP address location and search information like country, city, latitude, longitude data and more.
21.128.0.0/16 ip range
An IP range refers to a specific set of IP addresses within a network. It is defined by a starting IP address and an ending IP address, indicating the scope of addresses available for allocation to devices within that network. Understanding IP ranges is crucial for network management, subnetting, and security purposes. Businesses often utilize IP ranges to segment their network, manage traffic, and enforce security measures. The use of CIDR (Classless Inter-Domain Routing) notation also allows for more efficient management of IP ranges, enabling organizations to optimize their IP address utilization without wasting resources.CIDR 21.128.0.0/16 IP Addresses range from 21.128.0.0 to 21.128.255.255, here is a list of some ip address, . You can click the ip address to see the ip lookup information.
IP ranges are determined based on the subnetting of an IP address. Each IP address consists of a network portion and a host portion, which are separated by a subnet mask. The subnet mask defines which part of the address is the network and which part is for devices within that network. By using CIDR notation (e.g., 192.168.1.0/24), you can specify the range more efficiently.
Why are IP ranges important?
IP ranges are critical in networking for several reasons. They help in organizing networks into manageable segments, improving security by limiting access, and facilitating easier routing of traffic. IP ranges are also essential for creating firewall rules and for network management tasks such as DHCP assignments and IP address allocations.
How do I find my device's IP range?
To find your device's IP range, you can check your device's network configuration settings. On a computer, you can use the command line to enter commands like 'ipconfig' (Windows) or 'ifconfig' (Linux/Mac). This will display your local IP address and subnet mask, which can be used to calculate the range of IPs available on your network.
Can I change my IP range?
Yes, you can change your IP range, but the process usually depends on your network setup and requirements. If you are managing a private network, you can adjust the subnetting configuration via your router’s settings. However, you must ensure that the new range does not conflict with other devices in use. For public IP ranges, you'd generally need to contact your Internet Service Provider.
What is the difference between public and private IP ranges?
Public IP ranges are used on the internet and can be accessed globally, while private IP ranges are used within local networks and are not routable on the broader internet. Private IP ranges include specific blocks such as 10.0.0.0 to 10.255.255.255, 172.16.0.0 to 172.31.255.255, and 192.168.0.0 to 192.168.255.255. These private addresses help in conserving public IP addresses and enhancing security within local networks.