Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: CMBSMA01AMD

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
857-430 8 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-12-28   
857-430 9 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-12-28   
857-437 2 Roxbury MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2020-07-25   
857-437 4 Roxbury MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-10-05   
857-445 A Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-445 1 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2006-05-12   
857-467 9 Somerville MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2023-12-23   
857-472 A Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-472 0 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-472 1 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-472 2 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-472 3 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-472 4 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-472 8 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-472 9 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-498 A Brighton MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-498 0 Brighton MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-498 1 Brighton MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-498 2 Brighton MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-498 3 Brighton MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-498 5 Brighton MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2013-11-27   
857-499 A Quincy MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-499 0 Quincy MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-499 1 Quincy MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-499 2 Quincy MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2015-10-19   
857-499 3 Quincy MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2016-08-01   
857-499 4 Quincy MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-499 5 Quincy MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2017-09-11   
857-499 6 Quincy MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2016-01-12   
857-499 7 Quincy MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-523 5 Somerville MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2014-04-25   
857-523 6 Somerville MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2014-04-25   
857-600 9 Cambridge MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2011-06-07   
857-663 2 Dorchester MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2017-09-05   
857-701 0 Roxbury MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2014-09-05   
857-746 6 Brookline MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-10-05   
857-755 8 Quincy MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2023-10-12   
857-756 4 Cambridge MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-06-14   
857-756 6 Cambridge MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-06-14   
857-756 7 Cambridge MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2010-06-14   
857-756 8 Cambridge MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2009-03-02   
857-788 3 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2022-07-22   
857-788 4 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2022-07-22   
857-788 5 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2022-07-22   
857-788 6 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2022-07-22   
857-788 9 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2022-07-22   
857-847 8 Dorchester MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2023-09-08   
857-930 3 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2014-09-22   
857-930 5 Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2014-09-22   
857-944 A Boston MA 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-12-27   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 >>

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.