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IPv4 CIDR Subnet Mask, Broadcast, Network & Usable Host Range Calculator

Calculates exact network address, broadcast address, subnet mask, wildcard mask, first/last usable host IP, and total usable hosts for any IPv4 CIDR block.

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/dev-ipv4-cidr-calculator?cidr=192.168.1.0/24&compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"dev-ipv4-cidr-calculator"}

Parameters

Example response (live, compact)

{
  "apiId": "dev-ipv4-cidr-calculator",
  "data_freshness": "live",
  "data": {
    "cidr": "192.168.1.0/24",
    "network_address": "192.168.1.0",
    "broadcast_address": "192.168.1.255",
    "subnet_mask": "255.255.255.0",
    "first_usable_host": "192.168.1.1",
    "last_usable_host": "192.168.1.254",
    "total_addresses": 256,
    "usable_hosts": 254
  },
  "source": "100% Platform Network Engineering Engine",
  "license": "100% Platform Owned Compute"
}

Source & license