Please Call Me At/On 5678-1234?

Should I use at or on before a phone number? If the phone number is considered something like an address, it seems that we should use at. Login TeachersStudentsForumsNewsBlogCommonLinks PleaseCallMeAt/On5678-1234?ForumsGrammar&SentenceStructure 0 108,841+1 ShouldIuseatoronbeforeaphonenumber?Ifthephonenumberisconsideredsomethinglikeanaddress,itseemsthatweshoulduseat.Ifthephonenumberisequivalentto"thephone"or"theline",onwouldbemoreappropriate.Whichoneisbetter?Thanks.Mar11200807:51:49Pter   answer 1 2 Comments  Ialwaysuseat.CJMar11200807:56:17CalifJim addacomment ThanksJim.Howaboutthefollowing?1.Pleasecallmeat/onthisnumber5678-1234.2.Pleasecallmeat/onextension1234.3.Pleasecallmeat/onmydirectline5678-1234.4.Pleasecallmeat/onmymobile5678-1234.Mar11200808:13:02Pter addacomment Students:Areyoubraveenoughtoletourtutorsanalyseyourpronunciation?It'sonthedevice--atthenumber.atthisnumber--12345567671onmydirectlineat12345567671onmymobileat12345567671And:onextension1234CJMar11200808:17:04CalifJim addacomment Thankyouverymuchagain.Itisverycleartomenow.However,Ican'tresisttoaskwhyitis"onextension1234".Iknowwedon'talwayshaveanswersontheuseofprepositions,butextension1234isjustanotherformofphonenumber.Whyisn'titat?Mar11200808:28:25Pter addacomment CalifJimIalwaysuseat.CJSodoI.Ioftenhear"on",butIhavenoideawherethatusagecomesfrom.Nov18201022:33:09Philip addacomment SiteHint:Checkoutourlistofpronunciationvideos.ok,thanksDec02201018:33:49anonymous addacomment It'saUSversusBritishthing.Americanssay"at",Britssay"on."Soyouchoose:Callmeat123-4567orCallmeon123-4567.Hopeyougetthecallsyouwant!!MargaretSep06201120:44:34anonymous addacomment IamAmericansoIsayat,butIgotoschoolinGermanywheretheylearnBritishEnglishsoIoftendon'tknowwhatIshoulduse!!Feb24201316:39:31anonymous addacomment Teachers:WesupplyalistofEFLjobvacanciesShowmoreAnswerthisQuestion  AskaQuestion GuidesHowtoachievenativeenglishfluency10waysimprovelearningenglishTop10learnenglishapps2020guideLearnenglishasasecondlanguageHowtostudyenglishgrammar12ways