Technical Questions FAQ

How do Cogeco IP addresses work?

Any device connected to the Internet has an IP Address. An IP address is a numerical label assigned to each device to help identify its location within the network.

IPV4 and IPV6 Protocols

Cogeco is currently using two protocols to assign IP addresses: IPv4 and IPv6.

IPv4 is the most widely deployed Internet protocol.  It uses 32-bit addresses, allowing for a total of 4.3 billion addresses.  With the growth of the Internet, the IPv4 pool of available addresses has run out.

IPv6 is being deployed to fulfill the need for more Internet addresses and address the IPv4 address exhaustion.  IPv6 uses 128-bit addresses in order to provide approximately 340.3 undecillion IP addresses.

Dynamic and static IP addresses

Residential clients:

Cogeco uses a cable modem technology that works with a DHCP server. The server assigns residential clients a dynamic IPv4 and IPv6 address that changes periodically.  Cogeco also supports the allocation of multiple IPv6 addresses through a process called Prefix Delegation.

Business clients:

Business clients can obtain a permanent IPv4 address or a permanent block of IPv6 addresses (through Prefix Delegation) depending on their package.

Finding your IP address

You can find your IP address at any time on specific websites such as or                                                                                                                                                      

You should also be able to find your IP address on your computer by following these steps:

  1. Go to the Start menu.
  2. Click Run.
  3. Enter "NCPA.CPL", then click “OK”.
  4. In the Network connections window that appears, select your corresponding network card.
  5. Depending on your Windows version, your IP address will be listed under the Support tab or by clicking on the Details button.
  6. Your IP address information will be provided under label IPv4 Address or IPv6 address.

Warning: If you use a router, this procedure will provide you with the IP address of the router, not the one used to access the Internet.

Changing your IP address

Residential clients cannot change their IP address. Residential IP addresses are dynamic, so they automatically change without notice. This is normal and does not affect your Internet service.

Some people think that changing their IP address helps protect their computer against hackers. Unfortunately, hackers can track IP address changes. To protect your computer from malicious users, we recommend Cogeco’s Security Services.


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