Classless Inter-Domain Routing (CIDR) Tools

Everything about this Classless Inter-Domain Routing address block

Base information

Address Block 10.0.0.0/8
First address 10.0.0.0
Last address 10.255.255.255
Hosts in range 16 777 216
Mask bits 8

IANA Special-Purpose Registry

This CIDR is in a special-purpose block reserved by IANA for special purposes.

Address Block 10.0.0.0/8
Purpose Private-Use
Allocation Date February 1996
Termination Date N/A
Source true
Destination true
Forwardable true
Globally Reachable false
Reserved by protocol false
Defined in RFC [RFC1918]

REST API

REST API on request

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CIDR information and calculator

Analyze a CIDR

Example: 127.0.0.0/8 or 2001:db8::/32