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id="mw-indicator-coordinates" class="mw-indicator"><div class="mw-parser-output"><span id="coordinates"><a href="/wiki/Geographic_coordinate_system" title="Geographic coordinate system">Coordinates</a>: <style data-mw-deduplicate="TemplateStyles:r1156832818">.mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-parser-output .geo-inline-hidden{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}</style><span class="plainlinks nourlexpansion"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=Area_code_412&params=40.488_N_79.892_W_type:adm2nd_globe:earth_region:US-PA"><span class="geo-nondefault"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">40°29′17″N</span> <span class="longitude">79°53′31″W</span></span></span><span class="geo-multi-punct"> / </span><span class="geo-default"><span class="geo-dec" title="Maps, aerial photos, and other data for this location">40.488°N 79.892°W</span><span style="display:none"> / <span class="geo">40.488; -79.892</span></span></span></a></span></span></div></div> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Telephone area code for Pittsburgh, Pennsylvania</div> <figure class="mw-halign-right noresize" typeof="mw:File/Thumb"><span><img alt="Area code 412" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Area_code_412.svg/400px-Area_code_412.svg.png" decoding="async" width="400" height="261" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Area_code_412.svg/600px-Area_code_412.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Area_code_412.svg/800px-Area_code_412.svg.png 2x" data-file-width="417" data-file-height="272" usemap="#ImageMap_e171a8fc58f17696" resource="/wiki/File:Area_code_412.svg" /></span><map name="ImageMap_e171a8fc58f17696"><area href="/wiki/Area_code_716" shape="poly" coords="76,30,76,13,95,0,130,1,128,6,121,11,126,14,134,15,128,23,125,21,125,29" alt="Area code 716" title="Area code 716" /><area href="/wiki/Area_code_585" shape="poly" coords="165,31,164,3,130,2,127,12,132,21,123,24,123,29" alt="Area code 585" title="Area code 585" /><area href="/wiki/Area_code_607" shape="poly" coords="322,38,330,32,337,45,350,37,344,24,344,12,359,11,362,1,165,2,163,31,315,31" alt="Area code 607" title="Area code 607" /><area href="/wiki/Area_code_845" shape="poly" coords="374,91,374,16,361,4,359,11,342,10,343,22,349,34,336,45,330,32,320,39,327,43,332,55,331,60,340,69,349,73" alt="Area code 845" title="Area code 845" /><area href="/wiki/Area_codes_973_and_862" shape="poly" coords="374,130,362,130,363,121,354,120,348,114,351,105,337,89,353,77,374,90" alt="Area codes 973 and 862" title="Area codes 973 and 862" /><area href="/wiki/Area_code_908" shape="poly" coords="375,152,359,146,353,149,332,140,326,118,330,108,329,98,341,93,346,98,348,102,351,108,347,114,351,119,361,122,363,127,374,131" alt="Area code 908" title="Area code 908" /><area href="/wiki/Area_codes_410_and_443" shape="poly" coords="219,197,231,245,299,245,295,197" alt="Area codes 410 and 443" title="Area codes 410 and 443" /><area href="/wiki/Area_code_302" shape="poly" coords="298,195,299,245,322,245,319,229,308,214,314,189,304,185" alt="Area code 302" title="Area code 302" /><area href="/wiki/Area_codes_240_and_301" shape="poly" coords="87,234,87,198,218,198,227,245,195,245,186,226,172,205,162,200,157,202,145,205,146,212,125,208,117,216,109,216" alt="Area codes 240 and 301" title="Area codes 240 and 301" /><area href="/wiki/Area_codes_304_and_681" shape="poly" coords="87,245,0,245,0,204,22,155,26,140,20,130,30,129,30,197,88,196" alt="Area codes 304 and 681" title="Area codes 304 and 681" /><area href="/wiki/Area_codes_330_and_234" shape="poly" coords="0,78,5,76,7,78,14,81,11,73,20,69,23,63,32,64,29,127,2,209" alt="Area codes 330 and 234" title="Area codes 330 and 234" /><area href="/wiki/Area_code_440" shape="poly" coords="1,46,33,29,29,61,0,77" alt="Area code 440" title="Area code 440" /><area href="/wiki/Area_code_724" shape="poly" coords="89,195,30,195,34,47,47,55,42,69,54,78,59,67,65,70,70,89,72,90,65,102,85,104,93,100,92,118,81,113,76,108,49,110,47,118,37,121,58,132,53,144,59,147,70,140,67,153,87,153,86,156,63,157,61,169,85,169" alt="Area code 724" title="Area code 724" /><area href="/wiki/Area_code_878" shape="rect" coords="63,157,86,169" alt="Area code 878" title="Area code 878" /><area href="/wiki/Area_code_724" shape="poly" coords="116,117,106,100,89,99,95,119,88,130,95,131,87,153,85,159,89,160,90,170,85,172,89,197" alt="Area code 724" title="Area code 724" /><area href="/wiki/Area_code_814" shape="poly" coords="77,13,35,41,36,50,51,55,45,70,56,76,59,68,67,69,72,90,78,90,69,100,70,102,88,103,92,101,109,100,121,118,92,196,153,195,172,163,183,170,190,152,179,141,175,124,179,123,183,126,197,113,201,106,189,106,164,83,163,91,153,85,158,68,159,63,177,63,174,47,183,44,182,39,201,37,201,35,192,35,194,31,75,30" alt="Area code 814" title="Area code 814" /><area href="/wiki/Area_codes_272_and_570" shape="poly" coords="201,107,185,107,151,88,156,63,174,63,173,49,180,46,180,40,199,39,199,35,191,33,192,29,316,33,321,39,329,50,334,58,331,62,342,73,351,76,352,78,342,93,332,103,334,114,330,117,327,109,319,113,295,106,285,119,286,129,263,145,240,145,235,138,246,134,241,131,215,131,206,127,199,130,194,118" alt="Area codes 272 and 570" title="Area codes 272 and 570" /><area href="/wiki/Area_codes_610,_484,_and_835" shape="poly" coords="262,144,279,126,282,114,295,106,313,109,321,106,330,113,322,121,324,133,332,144,313,138,300,142,329,182,312,191,300,186,293,196,271,194,275,176,263,167,276,163,274,156,264,152" alt="Area codes 610, 484, and 835" title="Area codes 610, 484, and 835" /><area href="/wiki/Area_code_856" shape="poly" coords="345,238,326,235,304,210,314,189,330,183,331,178,342,167,348,176,352,189,356,195,350,202" alt="Area code 856" title="Area code 856" /><area href="/wiki/Area_codes_215,_267,_and_445" shape="poly" coords="347,153,354,163,329,182,302,142,336,144" alt="Area codes 215, 267, and 445" title="Area codes 215, 267, and 445" /><area href="/wiki/Area_codes_609_and_640" shape="poly" coords="374,245,374,152,338,146,356,163,341,169,352,178,348,186,356,194,349,202,344,245" alt="Area codes 609 and 640" title="Area codes 609 and 640" /><area href="/wiki/Area_codes_223_and_717" shape="poly" coords="272,196,149,195,170,164,179,169,189,152,177,141,169,121,172,119,177,121,192,115,195,125,204,125,213,130,240,128,246,134,235,136,241,144,265,145,271,155,278,158,279,165,270,170,278,178" alt="Area codes 223 and 717" title="Area codes 223 and 717" /><area href="/wiki/Area_code_412" shape="poly" coords="52,111,74,111,79,118,90,121,83,128,89,130,83,153,70,153,72,144,65,143,61,146,53,140,55,138,59,134,41,123,51,118" alt="Area code 412" title="Area code 412" /></map><figcaption>Pennsylvania (blue) with numbering plan area 412 shown in red.</figcaption></figure> <p><b>Area code 412</b> is a telephone <a href="/wiki/Area_code" class="mw-redirect" title="Area code">area code</a> in the <a href="/wiki/North_American_Numbering_Plan" title="North American Numbering Plan">North American Numbering Plan</a> (NANP) for the <a href="/wiki/Commonwealth_(U.S._state)" title="Commonwealth (U.S. state)">Commonwealth</a> of <a href="/wiki/Pennsylvania" title="Pennsylvania">Pennsylvania</a>. The numbering plan area (NPA) comprises the city of <a href="/wiki/Pittsburgh" title="Pittsburgh">Pittsburgh</a>, most of surrounding <a href="/wiki/Allegheny_County,_Pennsylvania" title="Allegheny County, Pennsylvania">Allegheny County</a>, and small portions of <a href="/wiki/Washington_County,_Pennsylvania" title="Washington County, Pennsylvania">Washington</a> and <a href="/wiki/Westmoreland_County,_Pennsylvania" title="Westmoreland County, Pennsylvania">Westmoreland</a> counties. The area code was one of the <a href="/wiki/Original_North_American_area_codes" title="Original North American area codes">original North American area codes</a> created in 1947, when it was assigned to the entire southwestern corner of the state.<sup id="cite_ref-mabbs1947_1-0" class="reference"><a href="#cite_note-mabbs1947-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> On August 17, 2001, the numbering plan area was converted to an <a href="/wiki/Overlay_plan" class="mw-redirect" title="Overlay plan">overlay complex</a> with <a href="/wiki/Area_code_878" title="Area code 878">area code 878</a>, which also forms an overlay with <a href="/wiki/Area_code_724" title="Area code 724">area code 724</a>, in the surroundings of the 412 service area. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Area_code_412&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>When the <a href="/wiki/American_Telephone_and_Telegraph_Company" class="mw-redirect" title="American Telephone and Telegraph Company">American Telephone and Telegraph Company</a> (AT&T) created the first nationwide <a href="/wiki/Telephone_numbering_plan" title="Telephone numbering plan">telephone numbering plan</a> for the continental United States and Canada in 1947, Pennsylvania was divided into four numbering plan areas. Area code 412 was assigned to the southwestern part of the state, from Butler County to the West Virginia border. </p><p>On February 1, 1998, most of southwestern Pennsylvania outside of Allegheny County was divided into a new numbering plan area and assigned <a href="/wiki/Area_code_724" title="Area code 724">area code 724</a>. <a href="/wiki/Verizon" title="Verizon">Bell Atlantic</a>, the main telephone provider at the time in Pennsylvania, had preferred to implement it as an <a href="/wiki/Overlay_plan" class="mw-redirect" title="Overlay plan">overlay</a> to spare residents and businesses the burden of changing telephone numbers, but overlays were still a new concept that met with resistance because of the need for <a href="/wiki/Ten-digit_dialing" title="Ten-digit dialing">ten-digit dialing</a>. As a result, 724 was implemented as an <a href="/wiki/Area_code_split" title="Area code split">area code split</a>, making it one of six pairs of <i>doughnut area codes</i> in North America. </p><p>This configuration was intended as a long-term solution, but within two years both 412 and 724 experienced high demand for telephone services from the proliferation of cell phones and pagers, so that further relief became necessary. By this time, overlays had gained more acceptance, so <a href="/wiki/Area_code_878" title="Area code 878">area code 878</a> was implemented as an overlay for both 412 and 724 on August 17, 2001.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Although telephone numbers were not assigned for 878 until 2013 (and were only assigned in the 724 area until 2015), ten-digit dialing has been mandatory across southwestern Pennsylvania since 2001. </p> <div class="mw-heading mw-heading2"><h2 id="Service_area">Service area</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Area_code_412&action=edit&section=2" title="Edit section: Service area"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The numbering plan area includes Allegheny county, with the exception of its northern edge served by <a href="/wiki/Consolidated_Communications" title="Consolidated Communications">Consolidated Communications</a>, formerly North Pittsburgh Telephone Company, and parts of Washington and Westmoreland counties. It includes the following municipalities: <a href="/wiki/Pittsburgh" title="Pittsburgh">Pittsburgh</a>, <a href="/wiki/Bethel_Park" class="mw-redirect" title="Bethel Park">Bethel Park</a>, <a href="/wiki/Penn_Hills,_Pennsylvania" title="Penn Hills, Pennsylvania">Penn Hills</a>, <a href="/wiki/Plum,_Pennsylvania" title="Plum, Pennsylvania">Plum</a>, <a href="/wiki/Carnegie,_Pennsylvania" title="Carnegie, Pennsylvania">Carnegie</a>, <a href="/wiki/West_Mifflin,_Pennsylvania" title="West Mifflin, Pennsylvania">West Mifflin</a>, <a href="/wiki/Fox_Chapel,_Pennsylvania" title="Fox Chapel, Pennsylvania">Fox Chapel</a>, <a href="/wiki/Franklin_Park,_Pennsylvania" title="Franklin Park, Pennsylvania">Franklin Park</a>, <a href="/wiki/McCandless,_Pennsylvania" title="McCandless, Pennsylvania">McCandless</a>, <a href="/wiki/McKeesport,_Pennsylvania" title="McKeesport, Pennsylvania">McKeesport</a>, <a href="/wiki/Millvale,_Pennsylvania" title="Millvale, Pennsylvania">Millvale</a>, <a href="/wiki/Monroeville,_Pennsylvania" title="Monroeville, Pennsylvania">Monroeville</a>, <a href="/wiki/Mount_Lebanon,_Pennsylvania" class="mw-redirect" title="Mount Lebanon, Pennsylvania">Mount Lebanon</a>, <a href="/wiki/Mount_Oliver,_Pennsylvania" title="Mount Oliver, Pennsylvania">Mount Oliver</a>, <a href="/wiki/Oakmont,_Pennsylvania" title="Oakmont, Pennsylvania">Oakmont</a>, <a href="/wiki/Robinson_Township,_Allegheny_County,_Pennsylvania" title="Robinson Township, Allegheny County, Pennsylvania">Robinson Township</a>, <a href="/wiki/Ross_Township,_Allegheny_County,_Pennsylvania" title="Ross Township, Allegheny County, Pennsylvania">Ross Township</a>, <a href="/wiki/Sewickley,_Pennsylvania" title="Sewickley, Pennsylvania">Sewickley</a>, <a href="/wiki/Shaler_Township" class="mw-redirect" title="Shaler Township">Shaler Township</a>, <a href="/wiki/South_Fayette_Township,_Pennsylvania" title="South Fayette Township, Pennsylvania">South Fayette</a>, <a href="/wiki/Upper_St._Clair_Township,_Pennsylvania" title="Upper St. Clair Township, Pennsylvania">Upper Saint Clair</a>, <a href="/wiki/West_View,_Pennsylvania" title="West View, Pennsylvania">The Borough West View</a> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Area_code_412&action=edit&section=3" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/List_of_Pennsylvania_area_codes" title="List of Pennsylvania area codes">List of Pennsylvania area codes</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Area_code_412&action=edit&section=4" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-mabbs1947-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-mabbs1947_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFMabbs1947–1948" class="citation journal cs1">Mabbs, Ralph (Winter 1947–1948). <a rel="nofollow" class="external text" href="https://archive.org/details/sim_bell-telephone-magazine_winter-1947-1948_26_4/page/n5/">"Nation-Wide Operator Toll Dialing—the Coming Way"</a>. <i>Bell Telephone Magazine</i>. <b>26</b> (4): 181<span class="reference-accessdate">. Retrieved <span class="nowrap">2022-04-23</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Bell+Telephone+Magazine&rft.atitle=Nation-Wide+Operator+Toll+Dialing%E2%80%94the+Coming+Way&rft.ssn=winter&rft.volume=26&rft.issue=4&rft.pages=181&rft.date=1947%2F1948&rft.aulast=Mabbs&rft.aufirst=Ralph&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fsim_bell-telephone-magazine_winter-1947-1948_26_4%2Fpage%2Fn5%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AArea+code+412" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.nationalnanpa.com/pdf/pl-nanp-281.pdf">"Planning Letter PL-281: Rationing in NPAs 412, 724, and 878 (Pennsylvania)"</a> <span class="cs1-format">(PDF)</span>. NANPA. 2001-05-14<span class="reference-accessdate">. Retrieved <span class="nowrap">2023-06-23</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Planning+Letter+PL-281%3A+Rationing+in+NPAs+412%2C+724%2C+and+878+%28Pennsylvania%29&rft.pub=NANPA&rft.date=2001-05-14&rft_id=https%3A%2F%2Fwww.nationalnanpa.com%2Fpdf%2Fpl-nanp-281.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AArea+code+412" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Area_code_412&action=edit&section=5" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://www.nationalnanpa.com/area_code_maps/display.html?pa">NANPA area code map of Pennsylvania </a></li></ul> <table class="wikitable" style="font-size: 95%;" width="45%" align="center"> <caption><a href="/wiki/Pennsylvania" title="Pennsylvania">Pennsylvania</a> area codes: <a href="/wiki/Area_codes_215,_267,_and_445" title="Area codes 215, 267, and 445">215/267/445</a>, <a class="mw-selflink selflink">412</a>, <a href="/wiki/Area_codes_570_and_272" title="Area codes 570 and 272">570/272</a>, <a href="/wiki/Area_codes_610,_484,_and_835" title="Area codes 610, 484, and 835">610/484/835</a>, <a href="/wiki/Area_codes_717_and_223" title="Area codes 717 and 223">717/223</a>, <a href="/wiki/Area_code_724" title="Area code 724">724</a>, <a href="/wiki/Area_codes_814_and_582" title="Area codes 814 and 582">814/582</a>, <a href="/wiki/Area_code_878" title="Area code 878">878</a> </caption> <tbody><tr> <td width="35%" style="text-align:center;"> </td> <td width="30%" style="text-align:center;"><b>North</b>: <a href="/wiki/Area_code_724" title="Area code 724">724</a>/<a href="/wiki/Area_code_878" title="Area code 878">878</a> </td> <td width="35%" style="text-align:center;"> </td></tr> <tr> <td width="10%" style="text-align:center;"><b>West</b>: <a href="/wiki/Area_code_724" title="Area code 724">724</a>/<a href="/wiki/Area_code_878" title="Area code 878">878</a> </td> <td width="35%" style="text-align:center;"><b>412/<a href="/wiki/Area_code_878" title="Area code 878">878</a> </b> </td> <td width="30%" style="text-align:center;"><b>East</b>: <a href="/wiki/Area_code_724" title="Area code 724">724</a>/<a href="/wiki/Area_code_878" title="Area code 878">878</a> </td></tr> <tr> <td width="35%" style="text-align:center;"> </td> <td width="30%" style="text-align:center;"><b>South</b>: <a href="/wiki/Area_code_724" title="Area code 724">724</a>/<a href="/wiki/Area_code_878" title="Area code 878">878</a> </td> <td width="35%" style="text-align:center;"> </td></tr> </tbody></table> <p><span class="geo-inline-hidden noexcerpt"><style data-mw-deduplicate="TemplateStyles:r1156832818">.mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-parser-output .geo-inline-hidden{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}</style><span class="plainlinks nourlexpansion"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=Area_code_412&params=40.488_N_79.892_W_type:adm2nd_globe:earth_region:US-PA"><span class="geo-nondefault"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">40°29′17″N</span> <span class="longitude">79°53′31″W</span></span></span><span class="geo-multi-punct"> / </span><span class="geo-default"><span class="geo-dec" title="Maps, aerial photos, and other data for this location">40.488°N 79.892°W</span><span style="display:none"> / <span class="geo">40.488; -79.892</span></span></span></a></span></span> </p>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Area_code_412&oldid=1232196389">https://en.wikipedia.org/w/index.php?title=Area_code_412&oldid=1232196389</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Telecommunications-related_introductions_in_1947" title="Category:Telecommunications-related introductions in 1947">Telecommunications-related introductions in 1947</a></li><li><a href="/wiki/Category:Area_codes_in_Pennsylvania" title="Category:Area codes in Pennsylvania">Area codes in Pennsylvania</a></li><li><a href="/wiki/Category:Area_codes_in_the_United_States" title="Category:Area codes in the United States">Area codes in the United States</a></li><li><a href="/wiki/Category:1947_establishments_in_Pennsylvania" title="Category:1947 establishments in Pennsylvania">1947 establishments in Pennsylvania</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:Pages_using_gadget_WikiMiniAtlas" title="Category:Pages using gadget WikiMiniAtlas">Pages using gadget WikiMiniAtlas</a></li><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_is_different_from_Wikidata" title="Category:Short description is different from Wikidata">Short description is different from Wikidata</a></li><li><a href="/wiki/Category:Coordinates_on_Wikidata" title="Category:Coordinates on Wikidata">Coordinates on Wikidata</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 2 July 2024, at 13:26<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; 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