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Flavius Porumb is a top telecommunication executive and serial entrepreneur. He excels in creating and growing new IT companies thanks to his 15-plus years of experience in this industry.
Currently, he is the CEO of Pubconcierge, a global datacenter & cloud services provider focused on IP leasing solutions.

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Network Protocols | IPv4 & IPv6 | What is...?

What Risks Does IP Leasing Testing Remove?

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IP Leasing | IPv4 & IPv6 | Proxy

IPv4 Leasing for Proxy Companies: Lease First, Scale Smarter Without Buying IPv4 Blocks

IPv4 leasing for proxy companies is a smarter way to test new markets before buying IP blocks. Instead of committing capital upfront, proxy providers can lease suitable IPv4 resources, validate regional demand, check IP reputation, test routing quality, and scale only when the market proves its value. For proxy companies expanding into new countries, verticals,… Continue reading IPv4 Leasing for Proxy Companies: Lease First, Scale Smarter Without Buying IPv4 Blocks

Press Releases

PubConcierge Expands Singapore Hub at Equinix SG3 to Support Growing APAC IPv4 Demand

Expanded Equinix SG3 presence strengthens regional IPv4 access for proxy platforms, AI data operations, ad verification, cybersecurity, cloud services, and other IP-dependent businesses. PubConcierge, a global IPv4 leasing provider and managed IP leasing broker, today announced the expansion of its Singapore infrastructure hub at Equinix SG3. The expansion strengthens support for companies across Asia-Pacific that… Continue reading PubConcierge Expands Singapore Hub at Equinix SG3 to Support Growing APAC IPv4 Demand

IP Leasing | IPv4 & IPv6 | Proxy

What Does PubConcierge as an IPv4 Broker Mean?

PubConcierge as an IPv4 broker means businesses can access IPv4 address space through a managed leasing partner instead of buying IP blocks outright or trying to source them alone. For companies that depend on stable IP infrastructure, this can reduce sourcing complexity, improve operational speed, and provide more control over IP reputation, routing, and long-term… Continue reading What Does PubConcierge as an IPv4 Broker Mean?

IP Leasing | IPv4 & IPv6 | Proxy

How IP Address Leasing Supports Faster Deployment for Proxy Infrastructure

IP address leasing helps proxy infrastructure deploy faster by giving teams quicker access to IPv4 and IPv6 resources without buying them outright. Proxy infrastructure moves fast until the IP layer slows it down. A data team can have strong crawlers, smart rotation logic, clean dashboards, and customer demand waiting. But if the company cannot source usable… Continue reading How IP Address Leasing Supports Faster Deployment for Proxy Infrastructure

IP Leasing | IPv4 & IPv6 | Proxy

How Proxy Businesses Can Expand Into New Markets With Leased IP Resources

Leased IP resources are IP addresses or IP blocks rented by businesses for a defined period instead of purchased permanently. Proxy businesses can expand into new markets faster by using leased IPs instead of buying address space upfront. With the right partner, leased IPv4 and IPv6 blocks help proxy providers test demand in new regions,… Continue reading How Proxy Businesses Can Expand Into New Markets With Leased IP Resources

IP Leasing | IPv4 & IPv6 | Network Protocols | Proxy

Clean IP Space vs Cheap IP Space: What Proxy Users Should Really Prioritize

For proxy users, clean IP space should never be an afterthought. The lowest price on the quote is rarely the lowest cost in production. A cheaper block can look good in a spreadsheet, then fail where it matters: lower success rates, more CAPTCHAs, account reviews, traffic throttling, compliance questions, and wasted engineering time. That is… Continue reading Clean IP Space vs Cheap IP Space: What Proxy Users Should Really Prioritize

IP Leasing | IPv4 & IPv6 | Network Protocols | Proxy

How Flexible IP Leasing Helps Proxy Platforms Reduce Infrastructure Costs

Flexible IP Leasing helps proxy platforms reduce infrastructure costs by matching IPv4 and IPv6 capacity to real customer demand instead of forcing teams to buy large IP blocks before demand is proven. Proxy platforms do not lose margin only because IPs are expensive. They lose margin when capacity sits idle, performs poorly, gets blocked too… Continue reading How Flexible IP Leasing Helps Proxy Platforms Reduce Infrastructure Costs

IP Leasing | IPv4 & IPv6 | Network Protocols | Proxy

How to Evaluate IP Address Quality Before Leasing for Proxy Infrastructure

IP address quality leasing is the process of evaluating leased IPv4 or IPv6 addresses before and during use to confirm that they are reputable, accurately geolocated, properly routed, compliant with acceptable-use requirements, and suitable for a specific proxy infrastructure workload. For proxy infrastructure, IP quality affects block rates, CAPTCHA frequency, session stability, geolocation accuracy, data… Continue reading How to Evaluate IP Address Quality Before Leasing for Proxy Infrastructure

IP Leasing | IPv4 & IPv6 | Proxy

What Makes a Valuable IP Block for Scraping, Proxying, and Data Infrastructure?

A valuable IP block can help a data team collect public information more consistently, support cleaner routing, reduce operational noise, and give procurement a more predictable way to scale. A weak IP block can do the opposite. It can trigger more friction, create cleanup work, slow down product launches, and raise compliance concerns. In 2026,… Continue reading What Makes a Valuable IP Block for Scraping, Proxying, and Data Infrastructure?

IP Leasing | IPv4 & IPv6 | Proxy

How Many IPs Do I Need for Proxies? A Planning Guide for Proxy and Data Operations

Every data team eventually asks the same question: how many IPs do I need for proxies? It sounds simple. In reality, the right answer depends on your workload, target websites, request volume, session behavior, geography, compliance rules, and whether your operation needs IPv4, IPv6, or both. At PubConcierge, we work with companies that use proxy… Continue reading How Many IPs Do I Need for Proxies? A Planning Guide for Proxy and Data Operations

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