I have been noticing several deliverability issues with our long code sends. We have about 10 that was recommended. Has anyone made the investment in a dedicated short code and have this solve deliverability issues? We have always provided opt out language in all messaging.
Best answer by cassy.lee
Hi @Suz_G-Form - From what I understand, many carriers have stricter filtering policies for long numbers than they do for short codes. In particular, T-Mobile and Sprint are more proactive about filtering A2P (application to person) traffic, so it can make it so that the delivery of messages to Sprint and T-Mobile phone numbers is inconsistent. However, if you are experiencing deliverability issues with your long number, you may want to look into getting a verified toll-free number, if not a short code. You can also find more details about SMS Filtering in this article here.