Yes, unregistered A2P 10DLC traffic will be blocked by carriers starting December 1st, 2024. Several companies have confirmed this deadline, providing detailed guidance on how to ensure compliance. Below is a list of companies and links to their announcements or guidance on the upcoming block:
https://lh7-rt.googleusercontent.com/slidesz/AGV_vUfgXEAyP8i9MG2lSOs0B3dQXL7JTPtsd47zCUkRl27vr__oOBUiuTWF-nUFklHmW-UdAYLaJO86bTJWSjQSft9S0BQhtoGd-BBQWbSTnL78OPsirfUrNoAPigNKC5wSkZC4OpGVYyhY4gVISUjLqpuqQMpLdGU4qS50AUPIiChLqA=s2048?key=9h_1VCmQ1xrNJ_9n-a1uaw
https://lh7-rt.googleusercontent.com/slidesz/AGV_vUerDpAEXvGtbOzQV73XqRh6XlfqIxh5-mD8G6YuZa_X1qNfH7lND8Hzb55P40Ebvx-KEyhWWWzyZNvcDSw7rzJzwYRX05RC45GSL8cxVNdxr95pS-a4sPxRUVUdJHU-wb6s8T3rWxWMbSWkdn1JBpbCeyS8D9ndczrhpALNUIpytg=s2048?key=9h_1VCmQ1xrNJ_9n-a1uaw
https://lh7-rt.googleusercontent.com/slidesz/AGV_vUef4pGIQPbet2nmud6ZuI9qNpubQIoe7UiON7aEwvXQfjLEJU8VVYGLAMJ_CF_9TIPTfD3RN2CPoQ8iJyOCz8B5IhdCRHecMVMnNtI9zMpEPYJUryAAtIg6m_Dz-CfMuRNGir1qah_UB-pMq4dL8hUDzj0hP_hg_Iin0QsUfdsrnQ=s2048?key=9h_1VCmQ1xrNJ_9n-a1uaw
https://lh7-rt.googleusercontent.com/slidesz/AGV_vUcJTjhd7G0cvaySd6PiTepUGeJVzrzpQ5jr3cDQ0TgQN3zc6JC_7_N5UnAAHFSQOx8M8gCjx5FmE_YsjM9330fFzlRufvcBxj589OExhvS__Wx8u4-whYWxYZKQzQ-NhinyJUFXf7arueZ2YkCflkbY6IW_H9h2Ajh3xPLFDzqI=s2048?key=9h_1VCmQ1xrNJ_9n-a1uaw
https://lh7-rt.googleusercontent.com/slidesz/AGV_vUfuQcDn9t96LM1f3xvCMXcBgWyDEDVaGjEHmQLgdRvYLfTb_0w6bppIvfteX1pxt0uhiqOHVDNIz6-hgsuW53bMmh_P-q8AJe_EyE_4rqd9fcOy2qMOC7b2ZmKN7eQQle6NcNeQ8z3XQA6Lp5AzDAseFd_nojPthsCnGuVrNV6oaA=s2048?key=9h_1VCmQ1xrNJ_9n-a1uaw