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.

Waltham, MA

<< 1 2 3 4 5 6 7 8 9 10 11 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
781-614 6 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2020-07-06   
781-614 7 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2020-07-06   
781-622 A WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-622 0 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-622 1 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-622 2 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-622 3 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-622 4 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-622 5 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-622 6 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-622 7 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-622 8 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-622 9 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-12-10   
781-642 A WLHMMASPDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-647 A WLHMMASPDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-663 A CMBRMAORDS1  7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-668 A WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-672 A WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-684 A WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-684 0 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-684 1 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-684 2 BSTPMALLDS1  4536 XO MASSACHUSETTS, INC. 128   2011-11-16   
781-684 3 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-684 4 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-684 5 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-684 6 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-684 7 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-684 8 WLHMMAWEDS1  9102 VERIZON NEW ENGLAND INC. 128      
781-684 9 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2015-02-23   
781-693 A CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-693 0 CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-693 1 CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-693 2 CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-693 3 CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-693 4 CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-693 5 CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-693 6 CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-693 7 CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
781-693 8 LWRNMACAX5X  8468 FREEDOM RING COMMUNICATIONS, LLC 128   2015-03-27   
781-693 9 CHTWMABFDS2  966C DSCI, LLC 128   2015-09-26   
781-697 A CMBRMAORDS1  7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-697 0 WRXBMAWACM2  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2008-08-01   
781-697 1 WRXBMAWACM2  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2010-02-16   
781-697 2 CMBRMAORDS1  7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-697 3 CMBRMAORDS0  7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-697 4 WRXBMAWACM2  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2008-12-18   
781-697 5 WRXBMAWACM2  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2009-03-07   
781-697 6 WRXBMAWACM2  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2009-06-01   
781-697 7 WRXBMAWACM2  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2008-11-03   
781-697 8 WRXBMAWACM2  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2009-08-01   

<< 1 2 3 4 5 6 7 8 9 10 11 >>

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.