6RD calculator

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Provider prefix IPv6:	/
Customer IPv4:	IP: using bits
Calculated IPv6 Prefix:
Actual IPv6:

convert the ISP prefix and public IPv4 to a IPv6 customer prefix

Known 6rd networks (source):
  France: Free.fr 2a01:e30::/28 - delegated /60 (source)
  Switzerland: Swisscom. 2a02:1200::/28 -> 6rd.swisscom.com (193.5.122.254) - delegated /60
  America: Charter 2602:100::/32 -> 68.114.165.1 = delegated /64
  Japan: Sakura 2001:e41::/32 -> 61.211.224.125 = delegated /64
  America: ATT Uverse 2602:300::/28 -> 12.83.49.81 = delegated /60
  Netherlands: Telfort Pilot ---- 2a00:cd8::/32 ? = delegated /64
  Netherlands: Lijbrandt Unsupported 2A02:80C0:FF00::/41 -> 188.142.72.5 IPv4 masklength 17 = delegated /56
  Canada: Videotron Unsupported 2607:fa48:6dc0::/42 -> 74.59.126.1 IPv4 masklength 18 = delegated /60
  Italy: FastWeb ---- 2001:b07::/32 = delegated /64

revision 1.03