USA:
46.19.209.10
46.19.209.11
46.19.209.12
46.19.209.13
46.19.209.14
46.19.209.15
46.19.209.75
46.19.209.76
46.19.209.77
46.19.209.78
46.19.209.79
46.19.209.80
In addition, RTP media may arrive from 46.19.209.0/25, please allow the range in your firewall.
Europe:
46.19.210.10
46.19.210.11
46.19.210.12
46.19.210.13
46.19.210.14
46.19.210.15
46.19.210.75
46.19.210.76
46.19.210.77
46.19.210.78
46.19.210.79
46.19.210.80
In addition, RTP media may arrive from 46.19.210.0/25, please allow the range in your firewall.
Please find more information about DIDWW Configuration Scripts

The List of DIDWW IP Addresses