Credit Bureau | Online | By phone | By mail |
Visit: Equifax Credit Freeze page | 1-800-685-1111 (NY residents call 1-800-349-9960) | Equifax Security Freeze, P.O. Box 105788 Atlanta, GA 30348 | |
Visit: Experian Credit Freeze page | 1-888-EXPERIAN (1-888-397-3742) | Experian Security Freeze, P.O. Box 9554 Allen, TX 75013 | |
Visit: TransUnion Credit Freeze page | 1-888-909-8872 | TransUnion LLC, P.O. Box 2000 Chester, PA 19016 |
I found this on https://clark.com/credit/credit-freeze-and-thaw-guide/