Subnet Calculator API
POST
https://api.findutils.com/api/tools/subnet-calculator/execute Return the full IPv4 subnet breakdown for an address: network and broadcast address, subnet mask, wildcard mask, binary mask, first and last usable host, total and usable host counts, IP class (A-E), and IP type (public, private, loopback, link-local, multicast, reserved). Accepts CIDR notation (192.168.1.0/24), a bare IP (defaults to /24), or an IP plus a dotted subnet mask.
Request body
application/json-
ip
string required
IPv4 address, with or without a /prefix, e.g. "192.168.1.0/24" or "10.0.0.5". Without a prefix /24 is assumed unless mask is given.
-
mask
string optional
Optional dotted subnet mask such as "255.255.255.0". When given it overrides the prefix in ip.
Example arguments
Verified{
"ip": "192.168.1.0/24"
} More Network tools
- Cidr Calculate Compute network / broadcast / first-last host / subnet mask / hosts count for a CIDR (e.g.
- Cookie Analyzer Analyze Set-Cookie header strings and return a per-cookie list of security issues, an overall 0-100 score, and recommendations.
- Curl To Code Returns source code that performs the same HTTP request as a cURL command, in JavaScript (fetch), Python (requests), PHP (cURL), Go…
- Dns Lookup Return the DNS records of a domain for one record type (A, AAAA, CNAME, MX, TXT, NS or SOA).
- Dns Security Scanner Return a DNS security report for a domain: SPF, DMARC, MX and CAA records with issues, a 0-100 score, a letter grade and recommendations.
- Email Security Checker Return an email-security report for the domain of an email address: MX, SPF, DKIM (common selectors), DMARC, MTA-STS, TLS-RPT and BIMI…