IPv4/IPv6 subnet calculator GestióIP
IP address management software


IPv4 IPv6
IP address
Prefix length   

IP address2002:5654:ef3:c:0:5efe:6dcd:8c74/64
typeGLOBAL-UNICAST - (ISATAP with 6to4 prefix) [rfc4214])
network2002:5654:ef3:c::
Prefix length64
network range
2002:5654:0ef3:000c:0000:0000:0000:0000-
2002:5654:0ef3:000c:ffff:ffff:ffff:ffff
total IP addresses18446744073709551616

IP address (full)2002:5654:0ef3:000c:0000:5efe:6dcd:8c74
integer ID42547431405852502163065923425903938676
hexadecimal ID0x200256540ef3000c00005efe6dcd8c74
dotted decimal ID32.2.86.84.14.243.0.12.0.0.94.254.109.205.140.116
base 85 ID9s9j{(r{`s#7b>e=tTcv
binary ID
00100000000000100101011001010100...
ip6.arpa Format4.7.c.8.d.c.d.6.e.f.e.5.0.0.0.0.c.0.0.0.3.f.e.0.4.5.6.5.2.0.0.2.ip6.arpa
MS ipv6.literal.net2002-5654-ef3-c-0-5efe-6dcd-8c74.ipv6-literal.net


Additional ISATAP information (2002:5654:0ef3:000c:0000:5efe:6dcd:8c74)
Embedded IPv4 address109.205.140.116


subnet-level I

IPv4/IPv6 subnet calculator and hierarchical IPv6 addressing plan builder

This is the online version of GestióIPv3's embedded subnet calculator. GestióIP is a free, web-based IP address management software.

To calculate an IP address select the IP version, introduce an IP address, choose a bitmask/prefix length and click "calculate".

In addition to the standard subnet calculator functions it can also be helpful in configuring IPv6 reverse DNS delegation as well as it can be used as IP address converter. It accepts the following IP address formats as input: dot-decimal notation (IPv4), colon-hexadecimal notation (IPv6), binary, integer, hexadecimal.

The subnet calculator includes an advanced IPv6 addressing plan builder which permits to create organization specific hierarchical IPv6 address allocation schemes. Read more...





For suggestions, comments or bugs relating to the subnet calculator mail to subnet_calculator@gestioip.net


last change: 28/01/2021







Online Subnet Calculator GestióIP Copyright © Marc Uebel 2017