As part of Optum’s effort to continuously improve our systems, we are migrating to Cloudflare to enhance system redundancy, security and cost effectiveness.
This will affect both the network (switch) and e-Prescribing, specifically the following URLs: • rxnsconnect.changehealthcare.com effective date March 2, 2026 • scriptrouting.changehealthcare.com effective date March 4, 2026 • connecthttppost.changehealthcare.com effective date March 10, 2026 •connect.changehealthcare.com effective date March 12, 2025
As part of this change, the DNS names will resolve to the IP Subnet 168.183.3.128 /27 (usable range 168.183.3.128 - 168.183.3.159).
If your firewall filters by DNS, then no action should be needed on your part.
However, if your organization does IP filtering, you will need to add to your whitelist for outbound traffic to IP Subnet 168.183.3.128 /27 (usable range 168.183.3.128-168.183.3.159).
We asked for this to be completed by March 1, 2026 to avoid disruption when the change is implemented. Above are the effective dates for each connectivity type.
If you have issues please call our customer support team at: 866-379-6389
Posted Mar 02, 2026 - 17:37 EST
This scheduled maintenance affects: Pharmacy Solutions (Pharmacy Network Solutions).