RBLTracker supports an IP Range Host type, which lets you add hosts as:

  • CIDR ranges – for example, to add a full class C.
  • IP lists either as – OR to add a the range of 6 addresses.


Rather than each individual IP address showing up under your list of hosts, you’ll see a single IP Range entry in your hosts list, and can be managed as a single entry.


All individual IP addresses in the range are monitored and billed for separately, but are managed as a single host entry, making it easier to manage large IP blocks.

You can also add ranges of IPv6 addresses. For example, 2600:118:49:5300:75:48:46:708/125 would add as a block of 8 IPv6 IP addresses.