12 Services from network-calc.x402tookit.com

Compares two IPv4 or IPv6 CIDR blocks to determine their relationship (equal, contains, contained, adjacent, or disjoint), finds their common supernet, and optionally tests whether a given IP address falls within either block.

Splits an IPv4 network into equal subnets or allocates VLSM subnets from named host counts, returning ranges, netmasks, usable addresses, and leftover free blocks.

Calculates first/last address, size, /64 count, nth subnet, address type, and reverse DNS zone for an IPv6 CIDR prefix.

Calculates TCP MSS from a given MTU for IPv4/IPv6, computes effective MTU through tunnels (PPPoE, GRE, VXLAN, WireGuard, etc.), and counts IPv4 fragments for a payload size.

Converts any IPv4 mask representation (prefix length, dotted netmask, wildcard, or hex) into all equivalent forms with host counts and validity flags.

Calculates one-way and round-trip propagation delay over fiber, copper, or radio for a given distance or pair of coordinates, plus optional serialization delay.

Calculates TCP bandwidth-delay product, required window size and scale factor, and throughput limits from both window size and packet loss (Mathis equation)

Calculates file transfer time given bandwidth and size, or solves for the missing variable (size or bandwidth) given the other two, with optional protocol overhead adjustment.

Aggregates a list of IPv4 or IPv6 CIDR blocks into the minimal set of non-overlapping, merged prefixes plus the covering supernet.

Calculates IP and Ethernet-level bandwidth for a VoIP codec and packetization time, including per-call and aggregate figures for multiple simultaneous calls.

Calculates Ethernet wire overhead, TCP/UDP goodput, and maximum packets per second at line rate for a given packet size and link speed.

Converts an IPv4 or IPv6 address between multiple notations: RFC 5952 compressed, expanded, integer, hex, binary, reverse DNS, and NAT64.