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.

Charlestown, MA

<< 1 2 3 4 5 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
857-468 2 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-15   
857-468 3 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-15   
857-468 4 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-09-15   
857-468 6 SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128   2022-04-17   
857-468 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-07-22   
857-468 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-07-22   
857-497 A NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-497 0   892D ONVOY, LLC - MA 128   2024-03-07   
857-497 8 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-10-20   
857-497 9 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2023-10-20   
857-577 A BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-577 0 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-04-12   
857-577 1 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-04-12   
857-577 2 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-04-12   
857-577 3 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-04-12   
857-577 4 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-04-12   
857-577 5 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-04-12   
857-577 6 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-04-12   
857-577 7 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-04-11   
857-577 8 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-04-11   
857-577 9 CMBRMABEQMD  321J HD CARRIER LLC 128   2016-04-12   
857-588 A CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-588 0 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-588 1 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2010-03-15   
857-588 2 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-11-10   
857-588 3 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-11-10   
857-588 4 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2013-11-10   
857-588 5 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-588 6 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-588 7 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-588 8 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-588 9 CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-837 A BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-837 0 BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2021-01-09   
857-837 1 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-07-26   
857-837 2 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-07-26   
857-837 3 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2020-07-26   
857-837 4 CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128   2021-04-08   
857-837 5 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2022-11-24   
857-837 6 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-03-07   
857-837 7 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2021-03-07   
857-837 8 BSTPMALLZMD  506J TWILIO INTERNATIONAL, INC. 128   2020-12-19   
857-837 9 BSTPMALLOMD  073H TELNYX LLC 128   2021-03-04   
857-971 A BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-971 0 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2017-05-18   
857-971 1 NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2016-06-17   
857-971 2 BSTNMACODS2  7135 TC SYSTEMS, INC. 128   2016-06-20   
857-971 3 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-08-05   
857-971 4 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-08-05   
857-971 5 BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-06-08   

<< 1 2 3 4 5 >>

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.