Overview
Calculates IPv4/IPv6 subnet details from CIDR notation — network/broadcast, netmask, wildcard (Cisco ACL) mask, binary/hex masks, usable host range, RFC classification (private/loopback/multicast), supernet, and subnet-split counts. Pass comma-separated CIDRs to detect overlaps and classify each pair (subnet/supernet/partial overlap/disjoint); multi-CIDR responses return {subnets, overlaps}.
Protocol
x402
Price
$0.0050
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
tools/utilities
Provider
NetIntel
Source
bazaar
Indexed
2026-06-21 04:15:48
Health
Status
healthy
Latency (p50)
335ms
Uptime (30d)
100.0%
Reliability Score
95/100
Last Checked
2026-10-31 07:03:36
Last Healthy
2026-10-31 07:03:36
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"cidr": "10.0.1.0/24"
},
"type": "http"
}
Output Schema
{
"example": {
"binary_mask": "11111111111111111111111100000000",
"broadcast": "10.0.1.255",
"cidr": "10.0.1.0/24",
"first_usable": "10.0.1.1",
"hex_mask": "ffffff00",
"ip_version": 4,
"is_private": true,
"last_usable": "10.0.1.254",
"netmask": "255.255.255.0",
"network": "10.0.1.0",
"prefix_length": 24,
"rfc_classification": "Private (RFC 1918)",
"subnets": [
{
"count": 2,
"prefix": "/25"
},
{
"count": 4,
"prefix": "/26"
},
{
"count": 8,
"prefix": "/27"
},
{
"count": 16,
"prefix": "/28"
}
],
"supernet": "10.0.0.0/23",
"total_hosts": 256,
"usable_hosts": 254,
"wildcard": "0.0.0.255"
},
"type": "json"
}