Savvas Bout founded Prefixx in 2018 to make IPv4 transfers and leasing straightforward for the people who actually run networks. He brings more than 20 years of experience designing, operating and maintaining data centre infrastructure for service providers, enterprises and cloud hosters, spanning network engineering, data centre design and operations, and bare-metal cloud. He works on transfers and leases across ARIN, RIPE NCC and APNIC, and on bringing customer address space into production on the Netrouting network.
Articles by Savvas Bout
IPv4 Block Appraisal: Know What You're Paying For
Get an accurate IPv4 block appraisal before you buy or sell. Learn how RIR region, block size, and reputation history dr...
Read → Oct 14, 2026IPv4 Selling Process Steps: Avoid Costly Delays
Learn the IPv4 selling process steps that close deals fast. Ownership docs, Tixx QC, escrow, and transfer paperwork expl...
Read → Oct 14, 2026Liens on IPv4 Address Blocks: What Buyers Must Know
Liens on IPv4 address blocks can kill a transfer after budget is committed. Learn how to spot them early and close clean...
Read → Oct 14, 2026IPv4 Lease Exit Checklist: Clean Handback Guide
Return a leased IPv4 block without inheriting blacklists or dangling ROAs. Step-by-step exit checklist covering RPKI, LO...
Read → Oct 14, 2026Can You Buy an IP Address? Yes, Here's How
Yes, you can buy an IPv4 address block. Learn which registry governs your transfer, what Tixx QC covers, and how escrow...
Read → Oct 14, 2026After Selling an IPv4 Block: Your Post-Transfer
After selling an IPv4 block, routing tables, RPKI, IRR and DNS still need updating. Here's what to clean up before your...
Read → Oct 13, 2026Cheap IPv4: Find Clean Blocks Without Hidden Costs
Cheap IPv4 blocks carry hidden risks: blacklists, routing gaps, RIR issues. Learn what to check before you buy, and wher...
Read → Oct 13, 2026What Lowers IPv4 Block Value: Key Risk Factors
Blacklists, routing gaps, and RIR standing all cut IPv4 block value before transfer. Learn what to check before you buy,...
Read → Oct 13, 2026Best IPv4 Marketplace: Transparent Pricing Explained
Most IPv4 marketplaces hide fees until closing. Learn what transparent pricing actually looks like and how to compare br...
Read → Oct 12, 2026Regional Internet Registry: Rules, Transfers & RIRs
Each regional internet registry sets its own transfer rules, timelines, and fees. Learn how ARIN, RIPE, APNIC, LACNIC an...
Read → Oct 12, 2026IPv4 Lease Pricing Factors Every Buyer Should Compare
Block size, RIR region, prefix reputation, and lease terms all shift your quote. Learn what drives IPv4 lease pricing be...
Read → Oct 12, 2026Buying IPv4 to Lease Out: Build a Revenue Asset
Acquire clean, transfer-eligible IPv4 blocks, recover costs through lease income, and keep the asset. Learn how the numb...
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