Editing Area codes 920 and 274 (section)

==History==
When the [[American Telephone and Telegraph Company]] (AT&T) divided the North American continent into the original eighty-six numbering plan areas (NPAs) for the first nationwide [[telephone numbering plan]] in 1947, Wisconsin received two area codes, [[area code 414|414]] for the south and northeast, and [[area code 715|715]], for the northern part.

On November 22, 1996, Ameritech notified [[Bellcore]], the [[North American Numbering Plan Administration]] (NANPA), that demand for telephone numbers had rapidly increased in the eastern part of the state, so that a jeopardy condition existed in which mitigation could not be provided early enough to avoid exhaustion of the numbering pool.<ref>{{Cite web
|url=https://www.nationalnanpa.com/pdf_previous/08_02_99/pl_nanp_023.pdf
|title=Declaration of Jeopardy Situation in NPA 414 (Wisconsin)
|publisher=NANPA
|date=1996-11-22
|access-date=2023-02-17
}}</ref>

On January 15, 1997, the NANP announced a split of the numbering plan area to create the new area code 920,<ref>{{Cite web
|url=https://www.nationalnanpa.com/pdf_previous/08_02_99/pl_nanp_032.pdf
|title=NANP-Split of 414 (Wisconsin) Numbering Plan Area (NPA)
|publisher=NANPA
|date=1997-01-15
|access-date=2023-02-17
}}</ref> in which Milwaukee and the surrounding communities south of the city would retain the existing area code, and the northern portion of the numbering plan area would receive 920. The split became effective on July 26, 1997, and a permissive dialing period ended on October 25, 1997.<ref>{{Cite web
|url=https://www.nationalnanpa.com/pdf_previous/08_02_99/pl_nanp_040.pdf
|title=Reissuance of Notification of NANP-Split of 414 (Wisconsin)
|publisher=NANPA
|date=1998-02-18
|access-date=2023-02-17
}}</ref>

In 2008, service providers recognized the need for a second area code for northeastern Wisconsin, leading the [[Public Service Commission of Wisconsin]] to approve an [[overlay plan]] with new '''area code 274'''.<ref>{{cite news|url=http://www.jsonline.com/business/34033774.html|title=State dials up 2 new area codes|last=Rick|first=Barrett|date=November 6, 2008|publisher=[[Milwaukee Journal Sentinel]]|accessdate=November 8, 2008|archive-date=March 22, 2010|archive-url=https://web.archive.org/web/20100322195828/http://www.jsonline.com/business/34033774.html|url-status=live}}</ref><ref>{{Cite web
|url=https://www.nationalnanpa.com/pdf/PL_385.pdf
|title=NPA 274 to Overlay NPA 920 (Wisconsin) 
|publisher=NANPA
|date=2008-12-22
|access-date=2023-02-17
}}</ref> The effective date for the new area code was announced as March 10, 2012. However, on December 22, 2010, PSC ordered a postponement of the plan due to new exhaustion forecasts for 2014.<ref>{{Cite web
|url=https://www.nationalnanpa.com/pdf/PL_417.pdf
|title=NPA 274 to Overlay NPA 920 (Wisconsin) 
|publisher=NANPA
|date=2020-12-22
|access-date=2023-02-17
}}</ref> The [[Great Recession]], number porting, a decline in [[landline]]s, and other factors delayed that requirement for fifteen years during which implementation was deferred several times.<ref>{{cite web|url=http://www.fox11online.com/dpp/news/local/green_bay/274-area-code-postponed-again |title=274 area code postponed again and 274 will have the same boundaries as 920 region |date=November 21, 2012 |publisher=[[WLUK-TV]], Green Bay |accessdate=February 14, 2013 |url-status=dead |archiveurl=https://web.archive.org/web/20121229050438/http://www.fox11online.com/dpp/news/local/green_bay/274-area-code-postponed-again |archivedate=December 29, 2012 }}</ref><ref>{{Cite web|url=https://psc.wi.gov/Pages/ForConsumers/AreaCodeRelief.aspx|title=Area Code and Telephone Numbers|website=psc.wi.gov|language=en-US|access-date=November 4, 2018|archive-date=October 30, 2018|archive-url=https://web.archive.org/web/20181030235606/https://psc.wi.gov/Pages/ForConsumers/AreaCodeRelief.aspx|url-status=live}}</ref>

Prior to October 2021, area code 920 had telephone numbers assigned for the [[central office code]] 988. In 2020, ''988'' was designated nationwide as a dialing code for the [[National Suicide Prevention Lifeline]], which created a conflict because area code 920 permitted [[seven-digit dialing]]. 920 transitioned to [[ten-digit dialing]] on October 24, 2021.<ref name="pl556">{{cite web
|url=https://nationalnanpa.com/pdf/PL_556.pdf
|title=Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline)
|publisher=NANPA
|date=2021-01-08
|access-date=2023-02-17}}
</ref>
On December 8, 2008, the Public Service Commission finally approved an all-services distributed overlay as the relief method for NPA 920 and on March 16, 2022, the NANPA established the timeline for installation, setting the in-service date of area code 274 to March 22, 2024. Only months later, based on new exhaustion studies,<ref>{{cite web|url=https://nationalnanpa.com/reports/2022-1_NPA%20Exhaust_Projections.pdf|author=North American Numbering Plan Association|title=2022-1 NRUF and NPA Exhaust Analysis|date=April 21, 2022|access-date=April 23, 2022}}</ref> this timeline was revised to May 5, 2023.<ref>{{cite web
|url=https://www.nationalnanpa.com/planning_letters/PL_593.pdf
|title=NPA 274 and 920 All-Services Overlay (Wisconsin)
|publisher=NANPA
|date=2022-06-02
|access-date=2023-02-17}}
</ref>
The 274 area code has been established as an overlay for 920 as of May 5, 2023 but over 100 prefixes are permissible in Green Bay, WI e.g. 274-200-XXXX or 274-300-XXXX or 274-755-5555 but only 1 or 2 have been established in the vicinity of Sheboygan, WI and Winnebago, WI e.g. 274-766-XXXX.