AT&T WorldNet Services ATT (NET-12-0-0-0-1) 
                                  12.0.0.0 - 12.255.255.255
Mediacom Communications Corp MEDIACOMCC-12-216-48-0-DES-MOINES-IA (NET-12-216-48-0-1) 
                                  12.216.48.0 - 12.216.63.255

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