During this planned T-Mobile maintenance window, IMEI transactions — including IMEI queries and changes — may be unavailable, with downtime expected not to exceed 2.5 hours. Any IMEI transactions that fail during the window will need to be resubmitted once maintenance is complete. Partners are advised to pause bulk provisioning and avoid submitting transactions where possible during the maintenance period, as intermittent failures and delays may occur. This may affect porting, provisioning, and other number-specific updates. Any changes to the maintenance window will be communicated here, and further updates will be provided as needed.