A Beginner’s Guide for Marketers, Founders, and Proxy-Driven Teams

If you’re considering leasing your first IP block, you might feel overwhelmed. Whether you’re building proxy infrastructure, scaling email outreach, or setting up a data scraping operation, it’s easy to get lost in the technical details.

• In this guide, we explain what an IP block is, how leasing works, who needs it, and what to consider before moving forward.

• It’s written for decision-makers – not engineers – so you can confidently make the right choice without a networking degree.

What Is an IP Block?

An IP block, or IP address block, is a group of IP addresses bundled together and treated as a single unit. These blocks come in various sizes, such as:

• • /29 – 8 IPs
• • /28 – 16 IPs
• • /24 – 256 IPs

Leasing an IP block gives you access to dedicated IP addresses for:

• • Running high-volume email marketing campaigns
• • Creating private proxy pools for scraping or automation
• • Reducing shared network congestion
• • Improving deliverability through isolated IP usage
• • Designed for privacy-focused networking, automation workflows, and secure routing infrastructure
• • Supporting geographically tailored infrastructure deployment, within the boundaries of applicable terms and legal guidelines

Proxy-driven use cases include sneaker botting, SEO tools, pricing intelligence, ad verification, and brand protection.

Why Lease Instead of Buy?

Leasing IP blocks offers more flexibility, lower upfront cost, and faster onboarding compared to buying. Here’s a quick comparison:

Feature	Leasing	Buying
Upfront Cost	Low (monthly or annual)	High ($40–$60+ per IP)
Deployment Time	Fast (24–48 hours)	Slow (ownership transfer needed)
Maintenance	Handled by provider	Fully your responsibility
IP Reputation	Usually clean and pre-checked	Must be managed manually
Flexibility	Easy to scale	Long-term and fixed

For proxy and automation use, leasing helps you avoid policy complexities tied to regional registries like RIPE or ARIN.

IP Leasing Trends and Statistics

Here are key stats to know before leasing an IP block:

• • Over 99% of IPv4 addresses are already allocated
• • The IPv4 leasing market grew 28% in 2024, led by proxy-driven demand
• • Email campaigns using leased, clean IP blocks see up to 60% better deliverability
• • Geo-targeted proxies leased through blocks perform 70% better in scraping tasks than public proxies

These trends make IP block leasing essential for digital growth.

Who Should Lease an IP Block?

Choosing the right IP block depends on your use case. Here’s a quick guide:

Use Case	Why It Matters	Recommended Block Size
Proxy Infrastructure	Supports multi-threading and locations	/28 or /24
Web Scraping	Avoids bans and site throttling	/24 or larger
SEO and Ads Intelligence	Enables geo-testing and ad previews	/28 or rotating pool
VPN/Cloud Services	Provides secure routing for users	/29 or /28
Email Marketing	Dedicated IPs boost sender reputation	/29 or /28

Common Pitfalls to Avoid

Leasing your first IP block can be simple, but beware of these common mistakes:

Mistake	Problem	Better Approach
Using unknown providers	Risk of blacklisted or abused IPs	Choose vetted, clean inventory providers
Ignoring geolocation needs	Misaligned targeting or compliance issues	Match region to business use
No warming strategy	Lower inbox placement and sender trust	Gradually increase usage over time
Lack of technical control	Limits in rDNS and transparency	Ensure full access to DNS & WHOIS tools

Questions to Ask Before Leasing

Ask your provider these questions before leasing an IP block:• Are the IPs clean and free from blacklists?

1. Do I have rDNS and WHOIS control?

2. Which regional registry are the IPs from?

3. Are the IPs proxy-ready or scraping-friendly?

4. Do you offer technical support or rotation support?

This ensures you’re getting a reliable and flexible setup.

Why IP Reputation Still Matters for Proxies

Even for proxies, reputation matters. Poor IP block hygiene can:

• • Trigger firewalls
• • Cause CAPTCHAs
• • Lead to API and website blocks

Clean IP blocks mean smoother automation, better access, and higher reliability.

Your Readiness Checklist

You’re ready to lease your first IP block if:

• • You understand your intended use (email, proxy, cloud, etc.)
• • You’ve calculated how many IPs you need
• • You’ve verified the IPs are clean and reputable
• • You have a warm-up or rotation plan
• • You confirmed rDNS, WHOIS, and geolocation support

Finding the Right Partner

At PubConcierge, we specialize in performance-grade IP blocks for marketers, developers, and infrastructure teams.

We offer:

• • Access to 100M+ Clean IPs
• • Onboarding in under 24 hours
• • Cloud and dedicated servers
• • GDPR, CAN-SPAM, and CASL compliance
• • Blacklist-free, ethically sourced IPs
• • Free testing and flexible terms

Ready to Lease Your First IP Block?

Let’s simplify the process. Book a consultation or speak with an expert – and start with a clean, reliable IP block that scales with your goals.

SCHEDULE a Discovery Call!

Frequently Asked Questions (FAQ)

1. What is an IP block, exactly?

An IP block is a group of IP addresses bundled together. Instead of getting just one IP, you lease a “block” (like 8, 16, or 256 IPs) that you can use for email, proxies, or cloud systems.

2. What’s the difference between leasing and buying IP addresses?

Leasing means you rent the IPs for a set time – it’s faster, cheaper, and flexible. Buying gives you full ownership, but it’s expensive, slow to set up, and comes with long-term responsibilities.

3. Why would I need more than one IP address?

Multiple IPs help you separate traffic, rotate addresses, or run simultaneous actions. This is important for tasks like email outreach, scraping websites, or running proxy networks.

4. What is IP warming and why does it matter?

IP warming means slowly increasing the volume of activity from a new IP to build trust. Without warming, email servers or websites may see your traffic as suspicious and block you.

5. How do I know if an IP block is clean?

A clean IP block has not been used for spam, hacking, or malicious activity. Good providers will check and guarantee that the IPs are not blacklisted before leasing them to you.

6. What is rDNS, and do I need it?

Reverse DNS (rDNS) maps your IP to a domain name. It’s critical for email deliverability and helpful for proxy services. Make sure your provider gives you rDNS control.

7. How do I choose the right size block (/29, /28, /24)?

It depends on your use case.

• • Proxy or scraping: /28 or /24 for higher volume and rotation.
• • Email: /29 (8 IPs) is a good start.
• • Advanced use: consult your provider for a custom setup.

8. Is leasing IPs legal and compliant?

Yes, as long as the use case is legal and follows internet policies. Make sure your provider is RIR-compliant (ARIN, RIPE, etc.) and transparent about ownership.

9. Can I lease geo-targeted IPs for proxies?

Yes. You can request IPs from specific countries or regions, depending on the provider’s available inventory. This is useful for SEO, ad testing, and region-specific access.

10. What happens when my lease ends?

You can usually renew your lease, return the block, or scale up to a larger one. It’s important to cleanly disconnect services and remove DNS records before ending the lease.

Disclaimer:

The content provided is for informational purposes only. Users are responsible for ensuring that their use of IP addresses complies with all applicable laws, regulations, and third-party terms of service.

Stay up to date on growth infrastructure, email best practices, and startup scaling strategies by following PubConcierge on LinkedIn.