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I would like to change Internet Service Providers (ISPs). Can I take the IP addresses I currently use to my new ISP?

It depends on what kind of address space you have and what you are using the addresses for:

  • If you are an End User with Provider Aggregatable (PA) address space assigned to you by an upstream provider and you change to a new provider, you must return the addresses to the provider that assigned it to you.
  • If you have Provider Independent (PI) address space, it remains assigned to its End User as long as the criteria for the original assignment are met. So, if you change ISPs, there's no need to return it.

For further information on PA and PI address space please refer to section 9: Provider Independent vs Provider Aggregatable Addresses in the RIPE Document IPv4 Address Allocation and Assignment Policies for the RIPE NCC Service Region.