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NPA: 312 [Rate centres in NPA 312] [Dial plan for NPA 312]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
312-599 2 Chicago Zone 01-Calumet IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-01-20   
312-599 3 Chicago Zone 01-Calumet IL ELGNILOTGT5  5562 METROPCS, INC. 358   2017-02-05   
312-599 4 Chicago Zone 01-Calumet IL ELGNILOTGT5  5562 METROPCS, INC. 358   2017-02-05   
312-599 5 Chicago Zone 01-Calumet IL ELGNILOTGT5  5562 METROPCS, INC. 358   2017-01-21   
312-599 6 Chicago Zone 01-Calumet IL ELGNILOTGT5  5562 METROPCS, INC. 358   2017-01-21   
312-599 7 Chicago Zone 01-Calumet IL ELGNILOTGT5  5562 METROPCS, INC. 358   2017-01-21   
312-599 8 Chicago Zone 01-Calumet IL ELGNILOTGT5  5562 METROPCS, INC. 358   2017-01-21   
312-599 9 Chicago Zone 01-Calumet IL ELGNILOTGT5  5562 METROPCS, INC. 358   2017-01-21   
312-600 A Chicago Zone 01-Calumet IL CHCGIL24DS6  224C ONVOY, LLC 358      
312-600 0 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-05-24   
312-600 1 Chicago Zone 01-Calumet IL CHCGIL24DS6  224C ONVOY, LLC 358   2012-07-30   
312-600 2 Chicago Zone 01-Calumet IL CHCGIL24DS6  224C ONVOY, LLC 358   2012-07-30   
312-600 3 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 4 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 5 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 6 Chicago Zone 01-Calumet IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2014-04-16   
312-600 7 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 8 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 9 Chicago Zone 01-Calumet IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2012-08-31   
312-601 A Chicago Zone 01-Monroe IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-602 A Chicago Zone 01-Calumet IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-603 A Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 ILLINOIS BELL TEL CO 358      
312-604 A Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 0 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 1 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 2 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 3 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 4 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2004-11-27   
312-604 5 Chicago Zone 01-Calumet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2019-03-04   
312-604 6 Chicago Zone 01-Calumet IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-10-16   
312-604 7 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 8 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 9 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-605 A Chicago Zone 01-Calumet IL CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2024-12-09   
312-605 0 Chicago Zone 01-Calumet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-10-02   
312-605 1 Chicago Zone 01-Calumet IL CHCGIL24DS6  224C ONVOY, LLC 358   2012-10-02   
312-605 2 Chicago Zone 01-Calumet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-10-02   
312-605 3 Chicago Zone 01-Calumet IL CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2012-09-29   
312-605 4 Chicago Zone 01-Calumet IL CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2012-09-29   
312-605 5 Chicago Zone 01-Calumet IL CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2012-09-29   
312-605 6 Chicago Zone 01-Calumet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-10-02   
312-605 7 Chicago Zone 01-Calumet IL OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2012-11-04   
312-605 8 Chicago Zone 01-Calumet IL CHCGILDTKMD  5447 ACCESS ONE, INC. - IL 358   2012-10-02   
312-605 9 Chicago Zone 01-Calumet IL CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2012-11-01   
312-606 A Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 ILLINOIS BELL TEL CO 358      
312-607 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-608 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-609 A Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 ILLINOIS BELL TEL CO 358      
312-609 0 Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 ILLINOIS BELL TEL CO 358      
312-609 1 Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 ILLINOIS BELL TEL CO 358      
312-609 2 Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 ILLINOIS BELL TEL CO 358      
312-609 3 Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 ILLINOIS BELL TEL CO 358      
312-609 4 Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 ILLINOIS BELL TEL CO 358      
312-609 5 Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 ILLINOIS BELL TEL CO 358      
312-609 6 Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 ILLINOIS BELL TEL CO 358      
312-609 7 Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 ILLINOIS BELL TEL CO 358      
312-609 8 Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 ILLINOIS BELL TEL CO 358      
312-609 9 Chicago Zone 01-Franklin IL ELGNILOTGT5  5562 METROPCS, INC. 358   2011-01-05   
312-610 A Chicago Zone 01-Calumet IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-610 0 Chicago Zone 01-Calumet IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2012-10-01   
312-610 1 Chicago Zone 01-Calumet IL   515J IP HORIZON LLC 358   2013-06-10   
312-610 2 Chicago Zone 01-Calumet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2013-06-10   
312-610 3 Chicago Zone 01-Calumet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2013-06-10   
312-610 4 Chicago Zone 01-Calumet IL DWGVILMCPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2012-10-02   
312-610 5 Chicago Zone 01-Calumet IL DWGVILMCPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2012-10-02   
312-610 6 Chicago Zone 01-Calumet IL DWGVILMCPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2012-10-02   
312-610 7 Chicago Zone 01-Calumet IL DWGVILMCPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2012-10-02   
312-610 8 Chicago Zone 01-Calumet IL EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2012-10-02   
312-610 9 Chicago Zone 01-Calumet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-11-18   
312-612 A Chicago Zone 01-Canal IL CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-612 0 Chicago Zone 01-Canal IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-612 1 Chicago Zone 01-Canal IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-09-28   
312-612 2 Chicago Zone 01-Canal IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-09-28   
312-612 3 Chicago Zone 01-Canal IL CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-612 4 Chicago Zone 01-Canal IL CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-612 5 Chicago Zone 01-Canal IL CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-612 6 Chicago Zone 01-Canal IL CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358   2000-10-24   
312-612 7 Chicago Zone 01-Canal IL CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358   2000-10-24   
312-612 8 Chicago Zone 01-Canal IL CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358   2000-10-24   
312-612 9 Chicago Zone 01-Canal IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-613 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-614 A Chicago Zone 01-Calumet IL CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-614 0 Chicago Zone 01-Calumet IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-12-14   
312-614 1 Chicago Zone 01-Calumet IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-12-14   
312-614 2 Chicago Zone 01-Calumet IL CHCGIL24DS6  224C ONVOY, LLC 358   2012-12-08   
312-614 3 Chicago Zone 01-Calumet IL CHCGILCLDS7  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2012-11-23   
312-614 4 Chicago Zone 01-Calumet IL CHCGILCLDS7  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2012-11-23   
312-614 5 Chicago Zone 01-Calumet IL CHCGIL24DS6  224C ONVOY, LLC 358   2012-12-08   
312-614 6 Chicago Zone 01-Calumet IL CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358   2012-11-18   
312-614 7 Chicago Zone 01-Calumet IL CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358   2012-11-18   
312-614 8 Chicago Zone 01-Calumet IL CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358   2012-11-18   
312-614 9 Chicago Zone 01-Calumet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2012-11-28   
312-615 A Wheeling IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-615 6 Wheeling IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-616 A Chicago Zone 01-Lakeshore IL CHCGILLRDS0  9329 ILLINOIS BELL TEL CO 358      
312-617 A Chicago Zone 01-Calumet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
312-617 0 Chicago Zone 01-Calumet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
312-617 1 Chicago Zone 01-Calumet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
312-617 2 Chicago Zone 01-Calumet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
312-617 3 Chicago Zone 01-Calumet IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      

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Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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