IPv4 prefix

81.1.64.0/18

IP Prefix (CIDR)

81.1.64.0/18

Subnet Mask

255.255.192.0

Address Count

16,384

IP Range

81.1.64.0 - 81.1.127.255

Subnet calculator

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Registered Owner

Handle

TALKTALK-MNT

Country

United Kingdom of Great Britain and Northern Ireland (GB)

Registry

RIPENCC

Registered Prefixes

81.1.64.0/20 (81.1.64.0 - 81.1.79.255)
81.1.80.0/20 (81.1.80.0 - 81.1.95.255)
81.1.96.0/19 (81.1.96.0 - 81.1.127.255)

Delegated Prefix

81.1.64.0/18 (81.1.64.0 - 81.1.127.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
81.1.64.0/18	Exact	AS13285	TalkTalk Communications Limited	United Kingdom of Great Britain and Northern Ireland (GB)	81.1.64.0	81.1.127.255