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NPA: 331 [Rate centres in NPA 331] [Dial plan for NPA 331]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-472 A Naperville IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
331-472 0 Naperville IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-11-27   
331-472 1 Naperville IL CHCGIL24DS6  224C ONVOY, LLC 358   2008-12-19   
331-472 2 Naperville IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-01-29   
331-472 3 Naperville IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-11-20   
331-472 4 Naperville IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2010-11-29   
331-472 5 Naperville IL CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2009-07-24   
331-472 6 Naperville IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2010-12-16   
331-472 7 Naperville IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2009-02-20   
331-472 8 Naperville IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-12-18   
331-472 9 Naperville IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-12-06   
331-481 A Downers Grove IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
331-481 0 Downers Grove IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2009-01-01   
331-481 1 Downers Grove IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-12   
331-481 2 Downers Grove IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2009-10-16   
331-481 3 Downers Grove IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2009-05-18   
331-481 4 Downers Grove IL CHCGILDTKMD  5447 ACCESS ONE, INC. - IL 358   2009-02-19   
331-481 5 Downers Grove IL CHCGIL24DS6  224C ONVOY, LLC 358   2010-03-04   
331-481 6 Downers Grove IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-11-17   
331-481 7 Downers Grove IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-06-16   
331-481 8 Downers Grove IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-06-30   
331-481 9 Downers Grove IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2009-02-20   
331-500 A Geneva IL CHCGILWURMD  965H FRACTEL, LLC 358      
331-500 0 Geneva IL CHCGILWURMD  965H FRACTEL, LLC 358   2021-03-04   
331-500 1 Geneva IL CHCGIL245MD  073H TELNYX LLC 358   2021-03-05   
331-500 2 Geneva IL CHCGIL24DS6  224C ONVOY, LLC 358   2021-11-19   
331-500 3 Geneva IL CHCGIL24DS6  224C ONVOY, LLC 358   2021-11-19   
331-500 4 Geneva IL CHCGIL24DS6  224C ONVOY, LLC 358   2021-11-19   
331-500 5 Geneva IL CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 358   2021-06-28   
331-500 6 Geneva IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2022-03-20   
331-500 7 Geneva IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2022-03-20   
331-500 8 Geneva IL   515J IP HORIZON LLC 358   2021-06-27   
331-500 9 Geneva IL CHCGIL24DS6  224C ONVOY, LLC 358   2023-09-07   
331-529 A Naperville IL CHCGILWURMD  965H FRACTEL, LLC 358      
331-529 0 Naperville IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2020-02-26   
331-529 1 Naperville IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2020-03-11   
331-529 2 Naperville IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2020-03-11   
331-529 3 Naperville IL CHCGILWURMD  965H FRACTEL, LLC 358   2019-10-02   
331-529 4 Naperville IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2022-01-10   
331-529 5 Naperville IL CHCGIL24DS6  224C ONVOY, LLC 358   2020-12-03   
331-529 6 Naperville IL CHCGIL24DS6  224C ONVOY, LLC 358   2020-12-03   
331-529 7 Naperville IL CHCGIL24DS6  224C ONVOY, LLC 358   2020-12-03   
331-529 8 Naperville IL CHCGIL24DS6  224C ONVOY, LLC 358   2020-12-03   
331-529 9 Naperville IL CHCGILWURMD  965H FRACTEL, LLC 358   2019-10-02   
331-551 A Lombard IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
331-551 0 Lombard IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-08   
331-551 1 Lombard IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-08   
331-551 2 Lombard IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-08   
331-551 3 Lombard IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2014-11-03   
331-551 4 Lombard IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2014-11-03   
331-551 5 Lombard IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2010-01-29   
331-551 6 Lombard IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-06-25   
331-551 7 Lombard IL CHCGIL24DS6  224C ONVOY, LLC 358   2010-07-16   
331-551 8 Lombard IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-10-30   
331-551 9 Lombard IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-03-19   
331-575 A Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
331-575 0 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-24   
331-575 1 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
331-575 2 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
331-575 3 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-20   
331-575 4 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-24   
331-575 5 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-24   
331-575 6 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-24   
331-575 7 Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2010-05-07   
331-575 8 Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2010-05-07   
331-575 9 Aurora IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-07-28   
331-588 A Geneva IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
331-588 0 Geneva IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-04-25   
331-588 1 Geneva IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-05-21   
331-588 2 Geneva IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2010-04-15   
331-588 3 Geneva IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-07-29   
331-588 4 Geneva IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-10-21   
331-588 5 Geneva IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-08-30   
331-588 6 Geneva IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-09-23   
331-588 7 Geneva IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-06-16   
331-588 8 Geneva IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-01-06   
331-588 9 Geneva IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2010-04-15   
331-600 A Wheaton IL CHCGILWURMD  965H FRACTEL, LLC 358      
331-600 0 Wheaton IL CHCGILWURMD  965H FRACTEL, LLC 358   2019-10-02   
331-600 1 Wheaton IL CHCGIL24XMD  495J STRATUS NETWORKS 358   2020-09-26   
331-600 2 Wheaton IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2022-09-25   
331-600 3 Wheaton IL   624H ONVOY SPECTRUM, LLC 358   2025-05-12   
331-600 4 Wheaton IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2022-05-26   
331-600 5 Wheaton IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2022-05-26   
331-600 6 Wheaton IL CHCGILWURMD  965H FRACTEL, LLC 358   2019-10-02   
331-600 7 Wheaton IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2022-09-25   
331-600 8 Wheaton IL CHCGIL245MD  073H TELNYX LLC 358   2021-02-27   
331-600 9 Wheaton IL CHCGILTCDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2021-03-22   
331-625 A Downers Grove IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
331-625 0 Downers Grove IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2009-12-18   
331-625 1 Downers Grove IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-04-26   
331-625 2 Downers Grove IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2010-07-19   
331-625 3 Downers Grove IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2010-10-20   
331-625 4 Downers Grove IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2010-10-20   
331-625 5 Downers Grove IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2010-10-24   
331-625 6 Downers Grove IL CHCGIL24DS6  224C ONVOY, LLC 358   2010-09-03   
331-625 7 Downers Grove IL CHCGIL24DS6  224C ONVOY, LLC 358   2010-09-03   
331-625 8 Downers Grove IL CHCGIL24DS6  224C ONVOY, LLC 358   2010-09-03   
331-625 9 Downers Grove IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2010-06-28   
331-627 A Lombard IL CHCGILWUTMD  516J TON80 COMMUNICATIONS, LLC 358      

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Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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