Rough sequence: define your requirement, get matched to available blocks, run due diligence on the block and the seller, sign, fund escrow, submit the transfer to the registry, wait for approval, then announce. The delays almost always come from two places, incomplete documentation on the seller side and needs justification if your registry requires it. Neither is fast to fix mid process, which is why the pre checks matter. We chose to Buy IPv4 addresses safely , with IPv4.online handling the registry coordination, and the RIPE step took about ten days. Tip: have your LIR contact details and authorization sorted before you start, that trips people up constantly.