SubnetCalc Pro

SubnetCalc Pro

Logo of SubnetCalc Pro

SubnetCalc Pro: The All-In-One Network Toolkit for IT Professionals

Streamline your infrastructure with precision IPv4/IPv6 subnetting, VLSM planning, and advanced diagnostic tools built for high-performance networking.

Publisher

Julian Christopher Siebert

Category

Utilities

Downloads

0

User Rating

1.0/5

Total Ratings

0

Locales

2

Precision in Every Pixel

Discover the interface used by 0 users.

Interface of the SubnetCalc Pro app showing an IPv4 subnet calculator with network and broadcast addresses

Interface of the SubnetCalc Pro app showing an IPv4 subnet calculator with network and broadcast addresses

SubnetCalc Pro app interface for IPv6 subnet calculation and network results

SubnetCalc Pro app interface for IPv6 subnet calculation and network results

Interface of SubnetCalc Pro app showing IP address lookup results including organization ASN and map location

Interface of SubnetCalc Pro app showing IP address lookup results including organization ASN and map location

A detailed subnet list showing CIDR notations, mask values, and host counts in the SubnetCalc Pro app.

A detailed subnet list showing CIDR notations, mask values, and host counts in the SubnetCalc Pro app.

DNS lookup screen in SubnetCalc Pro network engineering app

DNS lookup screen in SubnetCalc Pro network engineering app

VLSM Calculator screen in SubnetCalc Pro app showing network address input and calculated subnet results.

VLSM Calculator screen in SubnetCalc Pro app showing network address input and calculated subnet results.

The Ultimate Toolkit for Network Professionals

The tools that make this app stand out, trusted by 0 users.

🔢

Precise Subnetting & VLSM

Calculate IPv4/IPv6 ranges instantly and design optimized VLSM plans with automated CIDR logic and shortage warnings to maximize your IP allocation.

⚡

Advanced Diagnostic Suite

Troubleshoot connectivity on-the-go with high-speed port scanners, real-time HTTP ping latency tests, and robust DNS lookup tools from a single interface.

🗺️

Real-Time IP Intelligence

Identify IP ownership, ISP, and ASN data with multi-API lookups and MapKit integration, featuring a 24-hour offline cache for reliability in dead zones.

About the app

Everything you need to know about SubnetCalc Pro.

Description

• SUBNET CALCULATOR (IPv4 & IPv6) Calculate network addresses, broadcast, host ranges and more. Smart IP input field with automatic octet separation, number keyboard, and auto-jump. Binary view with color highlighting (network bits blue, host bits green). • IP OWNER LOOKUP Discover who owns an IP address. Shows organization, ISP, ASN, location on map (MapKit) and more. Auto-search after 1 second. Multi-API with fallback (IP-API.com, ipapi.co, ipinfo.io). 24h offline cache. • VLSM CALCULATOR Plan complex subnet structures. Automatic calculation of optimal CIDR values. IP shortage warning. Export as PDF or CSV. History of last 10 plans. • SUBNET REFERENCE Complete table of all subnet masks (/0 to /32). Search/filter function. Favorite stars for frequently used masks. • NETWORK TOOLS - HTTP Ping: Test connectivity with real response times - Port Scanner: Scan common ports (SSH, HTTP, HTTPS, RDP, MySQL) - DNS Lookup: Domain resolution via Google DNS - IP Batch Scanner: Scan IP ranges, CSV export

Latest Version

1.0

Size

2.8 MB

First Released

Nov 4, 2025

Master Your Subnets with Professional Precision

Join the network engineers and IT pros streamlining their workflow. Download SubnetCalc Pro today for error-free VLSM planning and instant network diagnostics.

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