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

204.193.33.0

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Result

204.193.33.0/24

Prefix:

204.193.33.0/24 (256 IP's - view in CIDR to IP tool)

Description:

AT&T Corp.

Country:

United States

Announced by:

AT&T Corp.
https://www.att.com

AS2687, 127 peers, 101 announced prefixes

See all details on AS2687 - AT&T Corp. »

204.193.33.0/24

Prefix:

204.193.33.0/24 (256 IP's - view in CIDR to IP tool)

Description:

IPNetZone

Country:

United States

Announced by:

IPNetZone
https://ipnetzone.com

AS20077, 3 peers, 30 announced prefixes

See all details on AS20077 - IPNetZone »

Matching prefixes

Country

ASN

Announced prefix

Description

Size

United States

AS2687

204.193.33.0/24

AT&T Corp.

256

United States

AS20077

204.193.33.0/24

IPNetZone

256

Log

000	+000	Parse input (Prefix)
000	+000	Search database for '204.193.33.0/24'
012	+012	2 prefixes found
012	+000	Done

ASN database

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Result

204.193.33.0/24

204.193.33.0/24

Matching prefixes

Log

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