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IP to CIDR calculation tool with subnet info. The reverse, CIDR ranges to IP addresses, is also possible. Last but not least, it includes a tool for refactoring groups of IPs, domain names, and/or other CIDR ranges.

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GeoIP location

161.81.252.0

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Result

161.81.252.0/24

Prefix:

161.81.252.0/24 (256 IP's - view in CIDR to IP tool)

Description:

China Mobile Hong Kong Company Limited

Country:

Hong Kong

Announced by:

China Mobile Hong Kong Company Limited

AS9231, 31 peers, 55 announced prefixes

See all details on AS9231 - China Mobile Hong Kong Company Limited »

Matching prefixes

Country

ASN

Announced prefix

Description

Size

Hong Kong

AS137872

161.81.0.0/16

China Mobile Hong Kong Company Limited

65.536

Hong Kong

AS9231

161.81.252.0/24

China Mobile Hong Kong Company Limited

256

Log

000	+000	Parse input (Prefix)
000	+000	Search database for '161.81.252.0/24'
013	+013	2 prefixes found
014	+000	Done

ASN database

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Result

161.81.252.0/24

Matching prefixes

Log

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