$megatools --ipv6-calculator --client-side
IPv6 & Subnet Calculator
Calculate IPv6 subnets, expand/compress addresses, compute reverse DNS ip6.arpa, and inspect address scopes.
Full Expanded Form (32 hex digits):
2001:0db8:85a3:0000:0000:8a2e:0370:7334
RFC 5952 Compressed / Canonical:
2001:db8:85a3::8a2e:370:7334
Address Scope:
Global Unicast (2000::/3)
Subnets (/64 equivalent):
1
Total Available IP Addresses in Prefix:
2^64 (1.60e+20)
Reverse DNS Zone (PTR / ip6.arpa):
0.0.0.0.3.a.5.8.8.b.d.0.1.0.0.2.ip6.arpa