Hello, Does any one truely know what the current route filtering polices are for Sprint and MCI. The following rules are some that I have heard : Sprint currently filters announcements from its non-customers as follows: RFC 1597 reserved space: accept nothing (**) In the classical "A" space: accept nothing longer than /8 In the classical "B" space: accept nothing longer than /16 in 24/8 space: accept nothing longer than /19 (*) in 195/8: accept nothing longer than /19 in 206/8 - 223/8: accept nothing longer than /19 in 192/8 - 205/8: accept nothing longer than /24 (*) in-line with the IP registries allocation (**) RFC 1597> Private Address Space RFC 1597> The Internet Assigned Numbers Authority (IANA) has reserved RFC 1597> the following three blocks of the IP address space for private RFC 1597> networks: RFC 1597> 10.0.0.0 - 10.255.255.255 RFC 1597> 172.16.0.0 - 172.31.255.255 RFC 1597> 192.168.0.0 - 192.168.255.255 How are MCI and Sprint going to adjust their routing polices when the reclaimed class A's are given out. Thanks Robert Malally