192.0.2.130/26: network, broadcast, and 62 usable hosts
Calculate 192.0.2.130/26 step by step: mask 255.255.255.192, network .128, broadcast .191, and usable range .129–.190.
View calculationWorked IPv4 calculations
Follow masks and host bits to the answer
Two complete RFC 5737 examples show an ordinary /26 and an explicit RFC 3021 point-to-point /31 without hiding intermediate values.
198.51.100.10/31: two point-to-point endpoints
Apply RFC 3021 to 198.51.100.10/31: endpoints .10 and .11, two total and usable addresses, and no directed broadcast.
View calculation