Sprint SPRN-BLKS (NET-63-160-0-0-1) 
                                  63.160.0.0 - 63.175.255.255
Countrywide Home Loans, Inc SPRINTLINK (NET-63-166-226-0-1) 
                                  63.166.226.0 - 63.166.226.255

# ARIN WHOIS database, last updated 2009-11-20 20:00
# Enter ? for additional hints on searching ARIN's WHOIS database.