Area code 331

Prefix State OCN Company Ratecenter
+1 331-200IL6529T-mobile usa, inc.Bartlett
+1 331-201IL6333Cellco partnership dba verizon wireless - ilDownersgrv
+1 331-202IL6664Sprint spectrum l.p.Elmhurst
+1 331-203IL6664Sprint spectrum l.p.Aurora
+1 331-204IL224COnvoy, llcNaperville
+1 331-205IL6529T-mobile usa, inc.Aurora
+1 331-206IL6664Sprint spectrum l.p.Aurora
+1 331-207IL6115Level 3 communications, llc - ilYorkville
+1 331-208IL6664Sprint spectrum l.p.Aurora
+1 331-209IL6115Level 3 communications, llc - ilElmhurst
+1 331-210IL063EPeerless network of illinois, llc - ilSt charles
+1 331-212IL7196Mci worldcom communications, inc. - ilAurora
+1 331-213IL6333Cellco partnership dba verizon wireless - ilNaperville
+1 331-214IL6333Cellco partnership dba verizon wireless - ilDownersgrv
+1 331-215IL6333Cellco partnership dba verizon wireless - ilNaperville
+1 331-216IL6534New cingular wireless pcs, llc - ilOswego
+1 331-218IL6529T-mobile usa, inc.Wheaton
+1 331-219IL073HTelnyx llcAurora
+1 331-220IL6664Sprint spectrum l.p.Aurora
+1 331-221IL9329Ameritech illinoisElmhurst
+1 331-222IL6534New cingular wireless pcs, llc - ilSt charles
+1 331-223IL6534New cingular wireless pcs, llc - ilSt charles
+1 331-225IL6664Sprint spectrum l.p.Elmhurst
+1 331-226IL6529T-mobile usa, inc.Naperville
+1 331-227IL6333Cellco partnership dba verizon wireless - ilSugargrove
+1 331-228IL7765Ovation communications of illinois, inc.St charles
+1 331-229IL6333Cellco partnership dba verizon wireless - ilNaperville
+1 331-230IL6529T-mobile usa, inc.Aurora
+1 331-231IL6534New cingular wireless pcs, llc - ilNaperville
+1 331-232IL6534New cingular wireless pcs, llc - ilW chicago
+1 331-233IL073HTelnyx llcDownersgrv
+1 331-234IL6333Cellco partnership dba verizon wireless - ilSugargrove
+1 331-235IL6534New cingular wireless pcs, llc - ilSt charles
+1 331-236IL6529T-mobile usa, inc.Wheaton
+1 331-237IL7196Mci worldcom communications, inc. - ilNaperville
+1 331-238IL7136Teleport communications america, llc - ilDownersgrv
+1 331-239IL224COnvoy, llcYorkville
+1 331-240IL063EPeerless network of illinois, llc - ilW chicago
+1 331-241IL816CWest telecom services, llc - ilLombard
+1 331-242IL6529T-mobile usa, inc.Lombard
+1 331-243IL6529T-mobile usa, inc.Lombard
+1 331-244IL224COnvoy, llcNaperville
+1 331-245IL6529T-mobile usa, inc.Bartlett
+1 331-246IL6529T-mobile usa, inc.Lemont
+1 331-247IL197DVonage network inc.Naperville
+1 331-248IL7607Comcast phone of illinois, llc dba comco - ilGeneva
+1 331-249IL224COnvoy, llcNaperville
+1 331-250IL6529T-mobile usa, inc.Aurora
+1 331-251IL6333Cellco partnership dba verizon wireless - ilDownersgrv
+1 331-252IL7136Teleport communications america, llc - ilWarrenvl
+1 331-253IL6529T-mobile usa, inc.Lemont
+1 331-254IL6529T-mobile usa, inc.Sugargrove
+1 331-255IL224COnvoy, llcAurora
+1 331-256IL6333Cellco partnership dba verizon wireless - ilAurora
+1 331-257IL6534New cingular wireless pcs, llc - ilAurora
+1 331-258IL224COnvoy, llcAurora
+1 331-259IL063EPeerless network of illinois, llc - ilSugargrove
+1 331-260IL7136Teleport communications america, llc - ilDownersgrv
+1 331-261IL6529T-mobile usa, inc.Lemont
+1 331-262IL6664Sprint spectrum l.p.Aurora
+1 331-263IL224COnvoy, llcItasca
+1 331-264IL6115Level 3 communications, llc - ilHinsdale
+1 331-265IL6115Level 3 communications, llc - ilGeneva
+1 331-266IL6534New cingular wireless pcs, llc - ilSt charles
+1 331-276IL6333Cellco partnership dba verizon wireless - ilSt charles
+1 331-281IL9329Ameritech illinoisNaperville
+1 331-300IL6529T-mobile usa, inc.Aurora
+1 331-301IL057HLocal access llc - ilAurora
+1 331-302IL6333Cellco partnership dba verizon wireless - ilAurora
+1 331-303IL479GCibolo creek ventures, llc dba routepoint comm ilElburn
+1 331-304IL6529T-mobile usa, inc.Bartlett
+1 331-305IL6333Cellco partnership dba verizon wireless - ilNaperville
+1 331-307IL6529T-mobile usa, inc.Lombard
+1 331-308IL984EBandwidth.com clec, llc - ilBartlett
+1 331-310IL984EBandwidth.com clec, llc - ilBig rock
+1 331-315IL6534New cingular wireless pcs, llc - ilLombard
+1 331-318IL057HLocal access llc - ilLemont
+1 331-321IL6529T-mobile usa, inc.Aurora
+1 331-330IL6534New cingular wireless pcs, llc - ilNaperville
+1 331-332IL6534New cingular wireless pcs, llc - ilNaperville
+1 331-333IL6534New cingular wireless pcs, llc - ilNaperville
+1 331-336IL965HFractel, llcAurora
+1 331-348IL965HFractel, llcElburn
+1 331-356IL965HFractel, llcBartlett
+1 331-385IL6534New cingular wireless pcs, llc - ilAurora
+1 331-400IL965HFractel, llcOswego
+1 331-401IL6115Level 3 communications, llc - ilNaperville
+1 331-422IL6115Level 3 communications, llc - ilSt charles
+1 331-425IL6529T-mobile usa, inc.Aurora
+1 331-431IL984EBandwidth.com clec, llc - ilAurora
+1 331-442IL6333Cellco partnership dba verizon wireless - ilSt charles
+1 331-444IL6333Cellco partnership dba verizon wireless - ilNaperville
+1 331-452IL6333Cellco partnership dba verizon wireless - ilAurora
+1 331-454IL6534New cingular wireless pcs, llc - ilAurora
+1 331-456IL4604First communications llc - ilRoselle
+1 331-457IL6333Cellco partnership dba verizon wireless - ilNaperville
+1 331-462IL7056Xo illinois, inc.Lombard
+1 331-465IL6534New cingular wireless pcs, llc - ilW chicago
+1 331-472IL6529T-mobile usa, inc.Naperville
+1 331-481IL6333Cellco partnership dba verizon wireless - ilDownersgrv
+1 331-529IL965HFractel, llcNaperville
+1 331-551IL6534New cingular wireless pcs, llc - ilLombard
+1 331-575IL6664Sprint spectrum l.p.Aurora
+1 331-588IL6534New cingular wireless pcs, llc - ilSt charles
+1 331-600IL965HFractel, llcWheaton
+1 331-625IL6333Cellco partnership dba verizon wireless - ilDownersgrv
+1 331-642IL984EBandwidth.com clec, llc - ilElmhurst
+1 331-643IL6664Sprint spectrum l.p.Aurora
+1 331-645IL6664Sprint spectrum l.p.Elmhurst
+1 331-666IL224COnvoy, llcAurora
+1 331-684IL667ESigecom, llc dba wow internet cable and phoneAurora
+1 331-701IL6333Cellco partnership dba verizon wireless - ilNaperville
+1 331-702IL7196Mci worldcom communications, inc. - ilNaperville
+1 331-703IL6529T-mobile usa, inc.W chicago
+1 331-704IL984EBandwidth.com clec, llc - ilKaneville
+1 331-707IL6529T-mobile usa, inc.Aurora
+1 331-716IL224COnvoy, llcWheaton
+1 331-717IL6534New cingular wireless pcs, llc - ilOswego
+1 331-725IL6534New cingular wireless pcs, llc - ilOswego
+1 331-732IL965HFractel, llcGeneva
+1 331-757IL6529T-mobile usa, inc.Lemont
+1 331-771IL224COnvoy, llcSt charles
+1 331-775IL7607Comcast phone of illinois, llc dba comco - ilDownersgrv
+1 331-777IL6333Cellco partnership dba verizon wireless - ilDownersgrv
+1 331-800IL224COnvoy, llcW chicago
+1 331-801IL7136Teleport communications america, llc - ilDownersgrv
+1 331-803IL063EPeerless network of illinois, llc - ilLemont
+1 331-806IL7607Comcast phone of illinois, llc dba comco - ilWheaton
+1 331-808IL984EBandwidth.com clec, llc - ilPlano
+1 331-814IL6529T-mobile usa, inc.Naperville
+1 331-825IL972CDigital network access communications, inc. - ilGeneva
+1 331-826IL6664Sprint spectrum l.p.Elmhurst
+1 331-871IL224COnvoy, llcW chicago
+1 331-888IL063EPeerless network of illinois, llc - ilWarrenvl
+1 331-900IL965HFractel, llcElmhurst
+1 331-901IL984EBandwidth.com clec, llc - ilSt charles
+1 331-903IL516CAt&t corp.Downersgrv
+1 331-979IL7607Comcast phone of illinois, llc dba comco - ilElmhurst
+1 331-980IL6529T-mobile usa, inc.Aurora
+1 331-998IL6333Cellco partnership dba verizon wireless - ilDownersgrv
+1 331-999IL984EBandwidth.com clec, llc - ilOswego