Active Prefixes in Area Code 331

Prefix Location Usage Company
331-200 Bartlett, IL Wireless T-mobile Usa
331-201 Downers Grove, IL Wireless Cellco Partnership DBA Verizon Wireless
331-202 Elmhurst, IL Wireless Sprint Spectrum L.p.
331-203 Aurora, IL Wireless Sprint Spectrum L.p.
331-204 Bartlett, IL Landline Broadvox-clec
331-205 Aurora, IL Wireless T-mobile Usa
331-206 Aurora, IL Wireless Sprint Spectrum L.p.
331-207 Yorkville, IL Landline Level 3 Communications
331-208 Aurora, IL Wireless Sprint Spectrum L.p.
331-209 Elmhurst, IL Wireless Level 3 Communications
331-210 Saint Charles, IL Landline Peerless Network Of Illinois
331-212 Aurora, IL Landline Mci Worldcom Communications
331-213 Naperville, IL Wireless Cellco Partnership DBA Verizon Wireless
331-214 Downers Grove, IL Wireless Cellco Partnership DBA Verizon Wireless
331-215 Naperville, IL Wireless Cellco Partnership DBA Verizon Wireless
331-216 Oswego, IL Wireless New Cingular Wireless PCS
331-218 Wheaton, IL Wireless T-mobile Usa
331-220 Aurora, IL Wireless Sprint Spectrum L.p.
331-221 Elmhurst, IL Landline Ameritech Illinois
331-222 Saint Charles, IL Wireless Cricket Communications
331-223 Saint Charles, IL Wireless Cricket Communications
331-225 Elmhurst, IL Wireless Sprint Spectrum L.p.
331-228 Saint Charles, IL Wireless Ovation Communications Of Illinois
331-229 Naperville, IL Wireless Cellco Partnership DBA Verizon Wireless
331-234 Sugar Grove, IL Wireless Cellco Partnership DBA Verizon Wireless
331-240 West Chicago, IL Landline Peerless Network Of Illinois
331-245 Bartlett, IL Wireless T-mobile Usa
331-248 Geneva, IL Landline Comcast Phone Of Illinois DBA Comco
331-250 Aurora, IL Wireless T-mobile Usa
331-251 Downers Grove, IL Wireless Cellco Partnership DBA Verizon Wireless
331-254 Wireless T-mobile Usa
331-256 Aurora, IL Wireless Cellco Partnership DBA Verizon Wireless
331-262 Aurora, IL Wireless Sprint Spectrum L.p.
331-281 Naperville, IL Landline Ameritech Illinois
331-301 Aurora, IL Landline Local Access LLC
331-302 Aurora, IL Wireless Cellco Partnership DBA Verizon Wireless
331-303 Elburn, IL Landline Cibolo Creek Ventures DBA Routepoint Comm Il
331-305 Naperville, IL Wireless Cellco Partnership DBA Verizon Wireless
331-318 Lemont, IL Landline Local Access LLC
331-330 Oswego, IL Landline Cricket Communications
331-332 Naperville, IL Wireless Cricket Communications
331-333 Naperville, IL Wireless Cricket Communications
331-422 Saint Charles, IL Landline Level 3 Communications
331-425 Aurora, IL Wireless T-mobile Usa
331-431 Aurora, IL Wireless Bandwidth.com Clec
331-442 Saint Charles, IL Wireless Cellco Partnership DBA Verizon Wireless
331-444 Naperville, IL Landline Cellco Partnership DBA Verizon Wireless
331-452 Aurora, IL Wireless Cellco Partnership DBA Verizon Wireless
331-454 Aurora, IL Wireless Cricket Communications
331-456 Roselle, IL Landline First Communications LLC
331-457 Naperville, IL Wireless Cellco Partnership DBA Verizon Wireless
331-462 Lombard, IL Landline Xo Illinois
331-465 West Chicago, IL Wireless New Cingular Wireless PCS
331-472 Naperville, IL Wireless T-mobile Usa
331-481 Downers Grove, IL Wireless Cellco Partnership DBA Verizon Wireless
331-551 Lombard, IL Wireless Cricket Communications
331-575 Aurora, IL Wireless Sprint Spectrum L.p.
331-588 Saint Charles, IL Wireless New Cingular Wireless PCS
331-625 Downers Grove, IL Wireless Cellco Partnership DBA Verizon Wireless
331-642 Elmhurst, IL Wireless Bandwidth.com Clec
331-643 Aurora, IL Wireless Sprint Spectrum L.p.
331-645 Elmhurst, IL Wireless Sprint Spectrum L.p.
331-684 Aurora, IL Landline Sigecom
331-702 Naperville, IL Landline Mci Worldcom Communications
331-703 West Chicago, IL Wireless T-mobile Usa
331-725 Oswego, IL Landline New Cingular Wireless PCS
331-777 Downers Grove, IL Landline Cellco Partnership DBA Verizon Wireless
331-801 Landline Teleport Communications America
331-803 Lemont, IL Landline Peerless Network Of Illinois
331-825 Digital Network Access Communications
331-826 Elmhurst, IL Wireless Sprint Spectrum L.p.
331-888 Warrenville, IL Landline Peerless Network Of Illinois
331-903 Landline Sbc Internet Services
331-999 Oswego, IL Landline Bandwidth.com Clec