You are reviewing the Area Code (NPA/NXX) report for 831-531. Did you mean to search the SMS short code 831531?
NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
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831-531-0XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | APTOS | RT | | APTOS | CA | WC | |
831-531-1XXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | APTOS | RT | | APTOS | CA | WC | |
831-531-2XXX | 8826 | LEVEL 3 COMMUNICATIONS, LLC - CA | APTOS | AS | 04/21/2005 | APTOS | CA | WC | 05/16/2005 |
831-531-3XXX | 373F | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | APTOS | AS | 03/05/2013 | APTOS | CA | WC | 03/29/2013 |
831-531-4XXX | 8826 | LEVEL 3 COMMUNICATIONS, LLC - CA | APTOS | AS | 12/23/2003 | APTOS | CA | WC | 01/13/2004 |
831-531-5XXX | 649C | ONVOY, LLC - CA | APTOS | AS | 12/15/2015 | APTOS | CA | WC | 12/30/2015 |
831-531-6XXX | 649C | ONVOY, LLC - CA | APTOS | AS | 12/15/2015 | APTOS | CA | WC | 12/30/2015 |
831-531-7XXX | 981E | BANDWIDTH.COM CLEC, LLC - CA | APTOS | AS | 01/28/2010 | APTOS | CA | WC | 02/26/2010 |
831-531-8XXX | 981E | BANDWIDTH.COM CLEC, LLC - CA | APTOS | AS | 07/30/2010 | APTOS | CA | WC | 08/28/2010 |
831-531-9XXX | 649C | ONVOY, LLC - CA | APTOS | AS | 12/22/2015 | APTOS | CA | WC | 01/06/2016 |
831-531-XXXX | 7229 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | APTOS | AS | | APTOS | CA | | |
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