Editing Seven-digit dialing (section)

===2020 to present===
{{further|Ten-digit dialing#Ten-digit dialing in non-overlay areas}}

On July 16, 2020, the FCC adopted rules to establish 988 as the three-digit phone number for the [[National Suicide Prevention Lifeline]].<ref>{{Cite web|date=July 17, 2020|title=Designating 988 for the National Suicide Prevention Lifeline|url=https://www.fcc.gov/document/designating-988-national-suicide-prevention-lifeline-0|url-status=live|archive-url=https://web.archive.org/web/20200807163501/https://www.fcc.gov/document/designating-988-national-suicide-prevention-lifeline-0|archive-date=Aug 7, 2020|access-date=July 6, 2021|website=FCC.gov|publisher=[[Federal Communications Commission]]}}</ref> This required 82 area codes to switch to mandatory ten-digit dialing by October 24, 2021, because they had already used 988 as a [[central office code]].<ref>{{Cite web|title=Transition to 10-digit dialing for 988|url=https://www.nationalnanpa.com/transition_to_10_digit_dialing_for_988/|url-status=live|archive-url=https://web.archive.org/web/20210426180901/https://www.nationalnanpa.com/transition_to_10_digit_dialing_for_988/|archive-date=April 26, 2021|access-date=July 6, 2021|publisher=[[NANPA]]}}</ref>

Similar transitions are scheduled in most parts of the remaining single-code areas in Canada by May 31, 2023, due in part to the rollout of 9-8-8 service in that country.<ref>{{cite web|url=https://crtc.gc.ca/eng/archive/2022/2022-234.htm|title=Telecom Regulatory Policy CRTC 2022-234: Introduction of 9-8-8 as the three-digit abbreviated dialing code for mental health crisis and suicide prevention services and Northwestel Inc.'s application for modified implementation of ten-digit local dialing|author=[[Canadian Radio-television and Telecommunications Commission]]|date=August 31, 2022|access-date=September 6, 2022}}</ref>