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: CMBRMAMQDS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
339-230 A Sharon MA 4536 XO MASSACHUSETTS, INC. 128      
508-318 A Natick MA 4536 XO MASSACHUSETTS, INC. 128      
508-401 A Wayland MA 4536 XO MASSACHUSETTS, INC. 128      
508-458 A Milford MA 4536 XO MASSACHUSETTS, INC. 128      
508-463 A Attleboro MA 4536 XO MASSACHUSETTS, INC. 128      
508-589 A Hopkinton MA 4536 XO MASSACHUSETTS, INC. 128      
508-597 A Marlboro MA 4536 XO MASSACHUSETTS, INC. 128      
508-618 A Mansfield MA 4536 XO MASSACHUSETTS, INC. 128      
508-637 A North Brookfield MA 4536 XO MASSACHUSETTS, INC. 128      
508-663 A Framingham MA 4536 XO MASSACHUSETTS, INC. 128      
508-691 A Northboro MA 4536 XO MASSACHUSETTS, INC. 128      
508-718 A Foxboro MA 4536 XO MASSACHUSETTS, INC. 128      
508-803 A Franklin MA 4536 XO MASSACHUSETTS, INC. 128      
508-983 A Westboro MA 4536 XO MASSACHUSETTS, INC. 128      
617-208 A Brighton MA 4536 XO MASSACHUSETTS, INC. 128      
617-224 A Boston MA 4536 XO MASSACHUSETTS, INC. 128      
617-326 A Dorchester MA 4536 XO MASSACHUSETTS, INC. 128      
617-370 A Chelsea MA 4536 XO MASSACHUSETTS, INC. 128      
617-477 A Jamaica Plain MA 4536 XO MASSACHUSETTS, INC. 128      
617-516 A Roxbury MA 4536 XO MASSACHUSETTS, INC. 128      
617-607 A Watertown MA 4536 XO MASSACHUSETTS, INC. 128      
617-614 A Newton MA 4536 XO MASSACHUSETTS, INC. 128      
617-681 A Charlestown MA 4536 XO MASSACHUSETTS, INC. 128      
617-701 A South Boston MA 4536 XO MASSACHUSETTS, INC. 128      
617-716 A East Boston MA 4536 XO MASSACHUSETTS, INC. 128      
617-860 A Brookline MA 4536 XO MASSACHUSETTS, INC. 128      
617-890 A Quincy MA 4536 XO MASSACHUSETTS, INC. 128      
617-896 A Boston MA 4536 XO MASSACHUSETTS, INC. 128      
617-917 A Everett MA 4536 XO MASSACHUSETTS, INC. 128      
617-941 A Somerville MA 4536 XO MASSACHUSETTS, INC. 128      
617-977 A Belmont MA 4536 XO MASSACHUSETTS, INC. 128      
617-995 A Cambridge MA 4536 XO MASSACHUSETTS, INC. 128      
774-256 A Walpole MA 4536 XO MASSACHUSETTS, INC. 128      
774-306 A North Attleboro MA 4536 XO MASSACHUSETTS, INC. 128      
774-308 A Marlboro MA 4536 XO MASSACHUSETTS, INC. 128   2012-09-27   
774-430 A Norton MA 4536 XO MASSACHUSETTS, INC. 128      
774-441 A Worcester MA 4536 XO MASSACHUSETTS, INC. 128   2008-03-03   
774-442 A Worcester MA 4536 XO MASSACHUSETTS, INC. 128   2008-03-03   
774-443 A Worcester MA 4536 XO MASSACHUSETTS, INC. 128   2008-03-03   
774-516 A East Bridgewater MA 4536 XO MASSACHUSETTS, INC. 128      
774-568 A Easton MA 4536 XO MASSACHUSETTS, INC. 128      
774-670 A Worcester MA 4536 XO MASSACHUSETTS, INC. 128      
774-961 A Taunton MA 4536 XO MASSACHUSETTS, INC. 128      
781-232 A Canton MA 4536 XO MASSACHUSETTS, INC. 128      
781-241 A Revere MA 4536 XO MASSACHUSETTS, INC. 128      
781-250 A Waltham MA 4536 XO MASSACHUSETTS, INC. 128      
781-300 A Randolph MA 4536 XO MASSACHUSETTS, INC. 128      
781-305 A Woburn MA 4536 XO MASSACHUSETTS, INC. 128      
781-345 A Burlington MA 4536 XO MASSACHUSETTS, INC. 128      
781-413 A Weymouth MA 4536 XO MASSACHUSETTS, INC. 128      

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