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.

OCN: 7135 TC SYSTEMS, INC.

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
617-396 9 Brookline MA BSTNMACODS2  128      
617-406 A Boston MA BSTNMACODS2  128      
617-406 0 Boston MA BSTNMACODS2  128      
617-406 1 Boston MA BSTNMACODS2  128      
617-406 2 Boston MA BSTNMACODS2  128      
617-406 3 Boston MA BSTNMACODS2  128      
617-406 4 Boston MA BSTNMACODS2  128      
617-406 5 Boston MA BSTNMACODS2  128      
617-406 6 Boston MA BSTNMACODS2  128      
617-409 4 Chelsea MA CMBRMA01DS5  128   2002-05-18   
617-431 A Newton MA CMBRMA01DS5  128      
617-431 9 Newton MA CMBRMA01DS5  128      
617-433 A Milton MA BSTNMACODS2  128      
617-433 3 Milton MA BSTNMACODS2  128      
617-454 A Newton MA CMBRMA01DS5  128      
617-454 0 Newton MA CMBRMA01DS5  128      
617-454 1 Newton MA CMBRMA01DS5  128      
617-454 2 Newton MA CMBRMA01DS5  128      
617-454 3 Newton MA CMBRMA01DS5  128      
617-454 6 Newton MA CMBRMA01DS5  128      
617-454 9 Newton MA CMBRMA01DS5  128      
617-476 A Boston MA BSTNMACODS0  128      
617-487 A Brookline MA BSTNMACODS0  128      
617-487 0 Brookline MA BSTNMACODS0  128      
617-487 6 Brookline MA BSTNMACODS0  128      
617-488 A Boston MA BSTNMACODS0  128      
617-488 0 Boston MA BSTNMACODS0  128      
617-488 1 Boston MA BSTNMACODS0  128      
617-488 2 Boston MA BSTNMACODS0  128      
617-488 3 Boston MA BSTNMACODS0  128      
617-488 4 Boston MA BSTNMACODS0  128      
617-488 5 Boston MA BSTNMACODS0  128      
617-488 6 Boston MA BSTNMACODS0  128      
617-488 7 Boston MA BSTNMACODS0  128      
617-488 8 Boston MA BSTNMACODS0  128      
617-514 5 Dorchester MA BSTNMACODS2  128   2010-04-30   
617-528 A Cambridge MA CMBRMA01DS5  128      
617-528 1 Cambridge MA CMBRMA01DS5  128      
617-528 2 Cambridge MA CMBRMA01DS5  128      
617-528 3 Cambridge MA CMBRMA01DS5  128      
617-528 4 Cambridge MA CMBRMA01DS5  128      
617-528 5 Cambridge MA CMBRMA01DS5  128      
617-528 6 Cambridge MA CMBRMA01DS5  128      
617-528 7 Cambridge MA CMBRMA01DS5  128      
617-530 A Boston MA BSTNMACODS2  128      
617-530 2 Boston MA BSTNMACODS2  128      
617-530 4 Boston MA BSTNMACODS2  128      
617-530 5 Boston MA BSTNMACODS2  128      
617-530 6 Boston MA BSTNMACODS2  128      
617-530 7 Boston MA BSTNMACODS2  128      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.