ASN database

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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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Check your own IP - both IPv4 and IPv6. Works as a connectivity test as well.

GeoIP location

205.161.64.0

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Result

205.161.64.0/20

Prefix:

205.161.64.0/20 (4.096 IP's - view in CIDR to IP tool)

Description:

Comcast Cable Communications, LLC

Country:

United States

Announced by:

Comcast Cable Communications, LLC

AS7922, 159 peers, 157 announced prefixes

See all details on AS7922 - Comcast Cable Communications, LLC »

Matching prefixes

Country

ASN

Announced prefix

Description

Size

United States

AS1239

205.160.0.0/14

Sprint

262.144

United States

AS7922

205.161.64.0/20

Comcast Cable Communications, LLC

4.096

Log

000	+000	Parse input (Prefix)
000	+000	Search database for '205.161.64.0/20'
008	+008	2 prefixes found
008	+000	Done

ASN database

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Result

205.161.64.0/20

Matching prefixes

Log

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