What is is a private IP Address, which is often used a a default IP address by many of the vendors supplying Broadband routers, modems and networking devices. It is fabricated within the firmware of the device and it allows the users to access and modify the settings of the device through a computer connected to the device.

What is a Private IP Address like

What is a Private Network and Private IP Address

Early network design, when global end-to-end connectivity was envisioned for communications with all Internet hosts, intended that IP addresses be uniquely assigned to a particular computer or device. However, it was found that this was not always necessary as private networks developed and public address space needed to be conserved.

Computers not connected to the Internet, such as factory machines, routers and other networking rquipments that communicate only with each other via TCP/IP, need not have globally-unique IP addresses. Three ranges of IPv4 addresses for private networks have been reserved. These addresses are not routed on the Internet and thus their use need not be coordinated with an IP address registry.

Today, when needed, such private networks typically connect to the Internet through network address translation (NAT).

IANA-reserved private IPv4 network ranges
Start End No. of addresses
24-bit Block (/8 prefix, 1 × A) 16777216
20-bit Block (/12 prefix, 16 × B) 1048576
16-bit Block (/16 prefix, 256 × C) 65536

. IP-Router Password, Login and Admin Details

Here we have compiled a list of the some of the most commonly used routers and modems alongwith their default IP addresses, default passwords and usernames. Please browse through the list to find out the default password for your router.