IPv4 blocks for sale

The blocks listed below are currently available through IPv4XI.

We publish block size only. Registry, region, history and price are discussed with buyers who are actively in the market and whose requirements match the available space.

That protects sellers’ confidentiality and lets us match a buyer’s exact requirements with suitable space, including blocks that are not publicly listed.

Looking for a particular block?

Tell us the prefix size, registration region, budget and timing. We will check what is currently available and explain the relevant transfer route.

The current IPv4 prices page provides a market reference. A specific block needs to be assessed against your technical and commercial requirements.

Have IPv4 to sell?

If you hold address space and are considering a sale, we can assess the market and approach suitable buyers on a need-to-know basis. Read about selling IPv4.

Need space for a defined period?

If a purchase does not fit your current time frame, ask about leasing IPv4.

By sending this form you agree that we may use your details to respond to your enquiry, as described in our privacy policy. We treat what you tell us as confidential and do not identify you to anyone until you decide to proceed.