This is where the results will appear (max: 128k text).

Free text: accept:  IPv4
(quick)    and/or   IPv4/Prefix (CIDR)
           and/or   IPv4/Subnet-Mask
           and/or   IPv4 Range

           example: 192.168.37.215
                    192.168.37.215/27
                    192.168.37.215/255.255.255.224
                    192.168.37.192 - 192.168.37.223

           The utility will pick out & aggregate all the IP/CIDR/Mask/Ranges
           from within a block of text pasted into the text-box (max: 128k).

ASN:       Alternatively, enter an ASN (eg AS5089 or 5089)
(slower)   and the current page from cidr-report.org will be used.
           (ASN entry disabled if the server cannot access remote URLs)

Output:    Choose one of:       Example
                                -------
           CIDR (default)       192.168.37.192/27
           Mask                 192.168.37.215/255.255.255.224
           Range                192.168.37.192 - 192.168.37.223
           Bad-Neighbours       http://forums.modem-help.co.uk/viewtopic.php?t=2015
           .htaccess            http://etmg.altervista.org/20160204_IP-Aggregation-HowTo.html
           ZB-Block             http://www.spambotsecurity.com/zbblock.php