164.0.0.0 164.40.255.255 RIPE Network Coordination Centre 164.48.0.0 164.48.255.255 RIPE Network Coordination Centre 164.59.0.0 164.61.255.255 RIPE Network Coordination Centre 164.81.0.0 164.81.255.255 RIPE Network Coordination Centre 164.128.0.0 164.143.255.255 RIPE Network Coordination Centre