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778-214-0202 519-871-7066 702-462-1675
306-717-3221 714-676-0383 206-641-0288
249-878-1253 786-260-9535 971-600-6961

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Index

Area Code 331 - Illinois

Prefix 331-200 - BARTLETT, IL (T-MOBILE USA, INC.)
Prefix 331-201 - DOWNERSGRV, IL (CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL)
Prefix 331-202 - ELMHURST, IL (SPRINT SPECTRUM L.P.)
Prefix 331-203 - AURORA, IL (SPRINT SPECTRUM L.P.)
Prefix 331-205 - AURORA, IL (T-MOBILE USA, INC.)
Prefix 331-206 - AURORA, IL (SPRINT SPECTRUM L.P.)
Prefix 331-207 - YORKVILLE, IL (LEVEL 3 COMMUNICATIONS, LLC - IL)
Prefix 331-208 - AURORA, IL (SPRINT SPECTRUM L.P.)
Prefix 331-209 - ELMHURST, IL (SPRINT SPECTRUM L.P.)
Prefix 331-210 - ST CHARLES, IL (PEERLESS NETWORK OF ILLINOIS, LLC - IL)
Prefix 331-212 - AURORA, IL (MCI WORLDCOM COMMUNICATIONS, INC. - IL)
Prefix 331-213 - NAPERVILLE, IL (CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL)
Prefix 331-220 - AURORA, IL (SPRINT SPECTRUM L.P.)
Prefix 331-221 - ELMHURST, IL (AMERITECH ILLINOIS)
Prefix 331-222 - ST CHARLES, IL (DENALI SPECTRUM LICENSE, LLC)
Prefix 331-223 - ST CHARLES, IL (DENALI SPECTRUM LICENSE, LLC)
Prefix 331-225 - ELMHURST, IL (SPRINT SPECTRUM L.P.)
Prefix 331-227 - SUGARGROVE, IL (CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL)
Prefix 331-228 - ST CHARLES, IL (CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL)
Prefix 331-248 - GENEVA, IL (COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL)
Prefix 331-250 - AURORA, IL (DENALI SPECTRUM LICENSE, LLC)
Prefix 331-256 - AURORA, IL (CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL)
Prefix 331-262 - AURORA, IL (SPRINT SPECTRUM L.P.)
Prefix 331-330 - NAPERVILLE, IL (DENALI SPECTRUM LICENSE, LLC)
Prefix 331-332 - NAPERVILLE, IL (DENALI SPECTRUM LICENSE, LLC)
Prefix 331-333 - NAPERVILLE, IL (DENALI SPECTRUM LICENSE, LLC)
Prefix 331-422 - ST CHARLES, IL (LEVEL 3 COMMUNICATIONS, LLC - IL)
Prefix 331-425 - AURORA, IL (T-MOBILE USA, INC.)
Prefix 331-431 - AURORA, IL (BANDWIDTH.COM CLEC, LLC - IL)
Prefix 331-442 - ST CHARLES, IL (CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL)
Prefix 331-444 - NAPERVILLE, IL (CYGNUS TELECOMMUNICATIONS CORPORATION - IL)
Prefix 331-452 - AURORA, IL (CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL)
Prefix 331-454 - AURORA, IL (DENALI SPECTRUM LICENSE, LLC)
Prefix 331-456 - ROSELLE, IL (GLOBALCOM, INC.-IL)
Prefix 331-457 - NAPERVILLE, IL (CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL)
Prefix 331-462 - LOMBARD, IL (XO ILLINOIS, INC.)
Prefix 331-465 - W CHICAGO, IL (NEW CINGULAR WIRELESS PCS, LLC - IL)
Prefix 331-472 - NAPERVILLE, IL (T-MOBILE USA, INC.)
Prefix 331-481 - DOWNERSGRV, IL (CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL)
Prefix 331-551 - LOMBARD, IL (DENALI SPECTRUM LICENSE, LLC)
Prefix 331-575 - AURORA, IL (SPRINT SPECTRUM L.P.)
Prefix 331-588 - ST CHARLES, IL (NEW CINGULAR WIRELESS PCS, LLC - IL)
Prefix 331-625 - DOWNERSGRV, IL (CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL)
Prefix 331-642 - ELMHURST, IL (BANDWIDTH.COM CLEC, LLC - IL)
Prefix 331-643 - AURORA, IL (SPRINT SPECTRUM L.P.)
Prefix 331-645 - ELMHURST, IL (SPRINT SPECTRUM L.P.)
Prefix 331-684 - AURORA, IL (SIGECOM, LLC - IL)
Prefix 331-725 - OSWEGO, IL (NEW CINGULAR WIRELESS PCS, LLC - IL)
Prefix 331-777 - DOWNERSGRV, IL (CYGNUS TELECOMMUNICATIONS CORPORATION - IL)
Prefix 331-825 - GENEVA, IL (DIGITAL NETWORK ACCESS COMMUNICATIONS, INC. - IL)
Prefix 331-826 - ELMHURST, IL (SPRINT SPECTRUM L.P.)
Prefix 331-888 - WARRENVL, IL (CYGNUS TELECOMMUNICATIONS CORPORATION - IL)
Prefix 331-958 - UA, IL (AMERITECH ILLINOIS)
Prefix 331-959 - UA, IL (AMERITECH ILLINOIS)
Prefix 331-999 - OSWEGO, IL (CYGNUS TELECOMMUNICATIONS CORPORATION - IL)