Browser-native telecom toolkit

telco@aio:~ TelcoAIO Network Engineering Toolbox

Minimal, high-signal utilities for subnet planning, DNS checks, route visibility, and maintenance workflows.

Detecting public IP...

Address Tools

CIDR ↔ IP List Converter

Switch between expanding a small CIDR block into individual IPs and summarizing a list of IPv4 addresses into the smallest covering prefix.

Expansion is capped at 4096 addresses to keep the page responsive.

CIDR ↔ IP List

Convert between CIDR notation and explicit IP address lists.

Category
addressing
Tags
cidr, ip-list

Inputs

  • One or more CIDRs to expand into addresses
  • Or a list of addresses to summarize into CIDRs

Outputs

  • Explicit address list
  • Summarized CIDR set
  • Counts to confirm a clean round-trip

Use Cases

  • Producing input for a tool that expects a flat IP list
  • Summarizing scan results into reviewable prefixes
  • Sanity-checking that a CIDR really covers what you expected

Limitations

  • Very large CIDR expansions (e.g. /8) are intentionally throttled
  • Browser memory limits the maximum list size