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Area codes 845 and 329
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<p>Area codes 845 and 329 are telephone <a href="/facts/Area_code/jaryReDv">area codes</a> in the <a href="/facts/North_American_Numbering_Plan/0QQ8v3ph">North American Numbering Plan</a> (NANP) for the <a href="/facts/U.S._state/PFwcRIYQ">U.S. state</a> of <a href="/facts/New_York_(state)/mnl67G1G">New York</a>. The numbering plan area comprises the mid- and lower <a href="/facts/Hudson_Valley/RTEkfwek">Hudson Valley</a>, specifically <a href="/facts/Orange_County,_New_York/zBG0fVFl">Orange</a>, <a href="/facts/Putnam_County,_New_York/bnHwzw1Y">Putnam</a>, <a href="/facts/Rockland_County,_New_York/EVqtkoM8">Rockland</a>, and <a href="/facts/Ulster_County,_New_York/KPnBr47U">Ulster</a> counties, and parts of <a href="/facts/Columbia_County,_New_York/V6owyxsh">Columbia</a>, <a href="/facts/Delaware_County,_New_York/mmqn5b2t">Delaware</a>, <a href="/facts/Dutchess_County,_New_York/AjKI4fWW">Dutchess</a>, <a href="/facts/Greene_County,_New_York/2Iclhsrs">Greene</a>, and <a href="/facts/Sullivan_County,_New_York/2F1QX5d1">Sullivan</a> counties. </p><p>Area code 845 was created on June 5, 2000, by an <a href="/facts/Area_code_split/naIyV2S2">area code split</a> from most of the territory of <a href="/facts/Area_code_914/0R4oVmBJ">area code 914</a>, which was retained by <a href="/facts/Westchester_County,_New_York/8NjUafq0">Westchester County</a>. </p><p>Prior to October 2021, area code 845 had telephone numbers assigned for the <a href="/facts/Central_office_code/0QQ8v3ph">central office code</a> 988. In 2020, <i>988</i> was designated nationwide as a dialing code for the <a href="/facts/National_Suicide_Prevention_Lifeline/1yCvYLwR">National Suicide Prevention Lifeline</a>, which created a conflict for exchanges that permit <a href="/facts/Seven-digit_dialing/w4RUKy6J">seven-digit dialing</a>. This area code was therefore scheduled to transition to <a href="/facts/Ten-digit_dialing/22AY5qgI">ten-digit dialing</a> by October 24, 2021. </p><p>On May 11, 2022, the North American Numbering Plan Administrator (NANPA) authorized the new area code 329 for an overlay of the 845 area, which had entered service on March 24, 2023. </p>