Our Featured Tools

IP Address Calculator

Determine IP address class, private/public status, subnet mask, and network characteristics with our comprehensive IPv4 analysis tool.

Use Tool

Password Generator

Create strong, secure passwords with customizable length and character options. Keep your accounts safe from hackers.

Not added

HTML Formatter

Format and beautify your HTML code for better readability. Supports indentation customization and syntax highlighting.

Not added

Fast & Efficient

Our tools are optimized for speed, delivering results in milliseconds without unnecessary bloat.

Privacy Focused

All processing happens in your browser. Your data never leaves your computer.

Fully Responsive

Access all tools from any device - desktop, tablet, or mobile phone.

Completely Free

All our tools are 100% free to use with no hidden costs or limitations.

About YP Web Tools

Welcome to YP Web Tools, your go-to resource for free, powerful online utilities designed to make your web development and digital tasks easier and more efficient.

I created this platform to provide developers, IT professionals, and tech enthusiasts with reliable tools that solve real-world problems. Each tool is carefully crafted to deliver accurate results with a clean, intuitive interface.

As the sole developer behind YP Web Tools, I'm constantly working to expand our collection of utilities. Our tools are built with modern web technologies and run entirely in your browser for maximum privacy and security.

If you find our tools helpful, consider supporting the project to help cover hosting costs and fund future development.

YP Web Tools

© 2025 YP Web Tools | Free Online Utilities

This website uses no cookies and collects no personal data

Created with ❤️ for the developer community

Cal IPv4

IPv4 Address Class Calculator

Determine IP address class, private/public status, subnet mask, and network characteristics with this comprehensive IPv4 analysis tool

Enter IP Address

. . .

Analysis Results

IP Address:
192.168.1.1
IP Address Class:
Class C
Address Type:
Private
Default Subnet Mask:
255.255.255.0
Hosts per Network:
254
Networks in Class:
2,097,152

IPv4 Address Classes Reference

Class A

  • Range: 1.0.0.0 to 126.255.255.255
  • Subnet Mask: 255.0.0.0
  • Networks: 126
  • Hosts per Network: 16,777,214
  • First bit: 0

Class B

  • Range: 128.0.0.0 to 191.255.255.255
  • Subnet Mask: 255.255.0.0
  • Networks: 16,384
  • Hosts per Network: 65,534
  • First bits: 10

Class C

  • Range: 192.0.0.0 to 223.255.255.255
  • Subnet Mask: 255.255.255.0
  • Networks: 2,097,152
  • Hosts per Network: 254
  • First bits: 110

Class D & E

  • Class D: Multicast (224.0.0.0 to 239.255.255.255)
  • Class E: Experimental (240.0.0.0 to 255.255.255.255)
  • No subnet masks defined
  • Not for general host addressing

Note: This calculator uses classful IPv4 addressing concepts. Modern networks typically use Classless Inter-Domain Routing (CIDR) for more efficient address allocation.

© 2025 YP Web Tools | Free Online Networking Utilities

This tool is provided for educational and informational purposes only.

Comments

Post a Comment