Learn Everything About IP Addresses
Free educational resources to help you understand IPv4, subnetting, routing, and the IP address market. From beginner basics to advanced technical concepts.
Start Here
Essential concepts every beginner should understand
What is an IP Address?
Learn what IP addresses are and why every device on the internet needs one to communicate.
Read article βWhat is IPv4?
The complete guide to IPv4 addressing - the foundation of internet communication used by billions of devices.
Read article βIPv4 vs IPv6
Compare the differences between IPv4 and IPv6 protocols and understand when to use each version.
Read article βPublic vs Private IP Addresses
Understand the difference between public and private IP addresses, when to use each, and how NAT bridges them.
Read article βStatic vs Dynamic IP Addresses
Compare static and dynamic IP addresses to understand which type your business needs.
Read article βWhat is a Subnet?
Master subnetting and CIDR notation to efficiently manage IP address ranges and network segments.
Read article βWhat is CIDR Notation?
Master CIDR (Classless Inter-Domain Routing) notation for efficient IP address allocation and network design.
Read article βWhat is NAT?
Learn how Network Address Translation (NAT) enables multiple devices to share a single public IP address.
Read article βTechnical Deep Dives
Advanced networking concepts for technical professionals
What is an ASN?
Learn about Autonomous System Numbers (ASN) and why they are essential for announcing IP addresses on the internet.
Read article βBGP & IP Routing
Learn how the Border Gateway Protocol (BGP) routes traffic across the internet and enables IP address announcements.
Read article βROA & RPKI
Understand Route Origin Authorization (ROA) and RPKIβthe security systems that protect internet routing.
Read article βHow DNS Works with IP Addresses
Understand DNS resolution and how domain names map to IP addresses for internet connectivity.
Read article βReverse DNS & PTR Records
Learn about reverse DNS (rDNS) and PTR recordsβessential for email deliverability and server identification.
Read article βWhat is Anycast?
Learn how anycast routing enables global load distribution and DDoS protection by routing to the nearest server.
Read article βIP Geolocation Explained
Understand how IP geolocation works, its accuracy, and how it affects content delivery and compliance.
Read article βIP WHOIS Lookup Guide
Learn how to use WHOIS to look up IP address ownership, registration details, and contact information.
Read article βIP Market & Industry
Understanding the business side of IP addresses
IPv4 Address Exhaustion
Understand why IPv4 addresses ran out, what caused the shortage, and how the market has adapted.
Read article βWhat is IP Leasing?
Learn how IP leasing works, its benefits over purchasing, and when leasing makes sense for your business.
Read article βIPv4 Transfer Market Explained
Understand the IPv4 secondary marketβhow buying, selling, and leasing IP addresses works.
Read article βIPv4 Pricing Trends
Understand IPv4 address pricingβhistorical trends, current rates, and factors that affect IP address values.
Read article βWhat is RIPE NCC?
Understand Regional Internet Registries (RIRs), their role in IP allocation, and how RIPE NCC manages European IP resources.
Read article βWhat is ARIN?
Learn about ARIN, the Regional Internet Registry for North America, and how it manages IP address allocation.
Read article βWhat is APNIC?
Learn about APNIC, the Regional Internet Registry for Asia-Pacific, and its role in IP address management.
Read article βIP Reputation & Blacklists
Understand IP reputation, how blacklists work, and why clean IPs are essential for business.
Read article βBusiness & Use Cases
Practical guides for specific industries and applications
IP Addresses for Web Hosting
Learn how web hosting providers use IPv4 addresses and why clean IPs are essential for hosting success.
Read article βIP Addresses for VPN Services
Understand VPN provider IP requirementsβgeographic diversity, reputation, and scaling considerations.
Read article βIP Addresses for Gaming Servers
Learn about IP requirements for gaming serversβlow latency, DDoS protection, and geographic distribution.
Read article βIP Addresses for CDN & Streaming
Understand CDN IP requirementsβedge deployment, anycast, and high-bandwidth content delivery.
Read article βIP Address Monetization Guide
Learn how to monetize unused IPv4 addresses by leasing them to businesses through IP Market.
Read article βChoosing the Right IP Provider
Learn what to look for in an IPv4 leasing providerβreputation, support, pricing, and technical capabilities.
Read article βQuick CIDR Reference
Common subnet sizes at a glance
Ready to Get Started?
Now that you understand IPv4, explore our marketplace for clean, verified IP addresses.