James, Can you send me some specifics so I can try and figure out how to help with your concerns? V/r, Tom From: Fiumano, Michael F [CTO] Subject: FW: Sprint Operations Tom, Stephanie, Is this something you could help with? Or fwd in the right direction? Thanks, Michael Fiumano Manager, Sprint Internet & WAN Engineering From: NANOG [mailto:nanog-bounces@nanog.org] On Behalf Of James Breeden Sent: Thursday, May 9, 2019 11:05 AM To: nanog@nanog.org<mailto:nanog@nanog.org> Subject: Sprint Operations CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hello, If anyone from Sprint Mobile operations is on list, could you reach out to me off list? Having issues with some ip ranges properly communicating with your WiFi Calling and SMS over IP hosts. James Sent via the Samsung Galaxy Note9, an AT&T 5G Evolution capable smartphone