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.

Boston, MA

<< 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 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
857-972 3 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-10-02   
857-972 4 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2015-11-01   
857-972 5 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2016-06-15   
857-972 6 CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2016-06-15   
857-972 7 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-09-26   
857-972 8 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-09-19   
857-972 9 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-09-19   
857-990 A BSTPMALLMMD  139F WORLDCALL INTERCONNECT INC. 128      
857-990 0 BSTPMALLMMD  139F WORLDCALL INTERCONNECT INC. 128   2015-11-13   
857-990 1 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2016-01-10   
857-990 2 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2016-01-10   
857-990 3 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2015-11-17   
857-990 4 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-12-13   
857-990 5 CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2015-12-13   
857-990 6 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2016-01-10   
857-990 7 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-02-19   
857-990 8 NRTNMAAACM4  5562 METROPCS, INC. 128   2016-06-19   
857-990 9 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-01-11   
857-991 A NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
857-991 0 NRTNMAAACM4  5562 METROPCS, INC. 128   2003-12-29   
857-991 1 NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2002-07-29   
857-991 2 NRTNMAAACM4  5562 METROPCS, INC. 128   2003-12-29   
857-991 3 NRTNMAAACM4  5562 METROPCS, INC. 128   2003-12-29   
857-991 4 NRTNMAAACM4  5562 METROPCS, INC. 128   2004-08-10   
857-991 5 NRTNMAAACM4  5562 METROPCS, INC. 128   2004-08-10   
857-991 6 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2003-12-02   
857-991 7 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2003-12-02   
857-991 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2004-08-09   
857-991 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2003-12-13   
857-996 A CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
857-996 0   7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2007-10-14   
857-996 1   7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2007-10-14   
857-996 2   7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2007-10-14   
857-996 3   7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2007-10-14   
857-996 4   7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2007-10-14   
857-996 5   7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2007-10-14   
857-996 6   7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2007-10-14   
857-996 7   7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2007-10-14   
857-996 8   7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2007-10-14   
857-996 9   7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128   2007-10-14   

<< 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 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.