Optimum Online NETBLK-OOL-5BLK (NET-68-192-0-0-1) 
                                  68.192.0.0 - 68.199.255.255
Optimum Online (Cablevision Systems) OOL-CPE-WMFDNJ-68-197-32-0-20 (NET-68-197-32-0-1) 
                                  68.197.32.0 - 68.197.47.255

# ARIN WHOIS database, last updated 2009-11-19 20:00
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