Ten Digit Dialing Will Become Mandatory For Every DC Phone Code bejo 6909 Share Ten Digit Dialing Will Become Mandatory For Every DC Phone Code FYI: Ten (10) Digit Dialing takes effect April 1, 2023 : Sunset Country ... Mandatory 10-digit dialing in Western Washington | Covington-Maple ... Read also: Expanding The Tico Dc Washington Dc
