The Social Security Administration (SSA) is conducting system maintenance on its Consent Based Social Security Number Verification (CBSV) service from Thursday, December 15, 2022 at 11 p.m. ET through Tuesday, December 20, 2022. Please note services will be unavailable during the scheduled maintenance windows, but we will be monitoring their progress so that we can process your requests as soon as we are able. Thank you in advance for your patience.