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

85.219.208.0

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Result

85.219.208.0/23

Prefix:

85.219.208.0/23 (512 IP's - view in CIDR to IP tool)

Description:

SFERANET S.A. Connected by T-Mobile Polska S.A.

Country:

Poland

Announced by:

SFERANET S.A.
https://www.sferanet.pl

AS43153, 17 peers, 6 announced prefixes

See all details on AS43153 - SFERANET S.A. »

Matching prefixes

Country

ASN

Announced prefix

Description

Size

Poland

AS12912

85.219.128.0/17

T-Mobile PL ICT customers

32.768

Poland

AS43153

85.219.208.0/23

SFERANET S.A. Connected by T-Mobile Polska S.A.

512

Log

000	+000	Parse input (Prefix)
000	+000	Search database for '85.219.208.0/23'
008	+008	2 prefixes found
008	+000	Done

ASN database

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Result

85.219.208.0/23

Matching prefixes

Log

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