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.
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
508-921 A Walpole MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-936 A Northboro MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-969 A Framingham MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
508-975 A Natick MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-213 A Newton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-273 A Milton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-275 A Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-314 A Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-395 A Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-401 A Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-500 A Cambridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-505 A Brookline MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-606 A Roxbury MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-639 A Quincy MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-765 A South Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-820 A Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-837 A Quincy MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-848 A Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-870 A Brighton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-906 A Brookline MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-934 A Quincy MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-938 A Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-990 A Hyde Park MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-996 A Somerville MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-997 A East Boston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-206 A New Bedford MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-207 A Orleans MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-214 A Shrewsbury MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-252 A Cataumet MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-323 A Brewster MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-330 A Barnstable MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-350 A Hopkinton MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-374 A Marlboro MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-450 A West Boylston MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-470 A Hyannis MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-481 A Uxbridge MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-530 A Worcester MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-538 A Provincetown MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-567 A Dover MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-745 A Spencer MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-763 A Falmouth MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-768 A Siasconset MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-847 A Wrentham MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-854 A Medway MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-901 A Seekonk MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
774-999 A Framingham MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-210 A Cohasset MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-214 A Hull MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-215 A Lynn MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
781-277 A Weymouth MA 4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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