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
339-202 A Lexington MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
508-206 A Natick MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
508-530 A Franklin MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
508-573 A Marlboro MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
508-906 A Medfield MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-206 A Brighton MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-249 A Quincy MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-279 A Boston MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-299 A Cambridge MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-315 A South Boston MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-405 A Quincy MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-418 A East Boston MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-514 A Dorchester MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-531 A Boston MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-588 A Cambridge MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-602 A Roxbury MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-603 A Boston MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-685 A Cambridge MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-712 A Charlestown MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-714 A Cambridge MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-831 A Newton MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-892 A Boston MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-952 A Charlestown MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
617-992 A Brookline MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
774-394 A East Douglas MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
774-448 A Milford MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128   2021-02-04   
774-712 A Rochester MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
774-713 A Westport MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
774-717 A Chilmark MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
774-843 A Marlboro MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-257 A Lincoln MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-347 A Rockland MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-480 A Malden MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-496 A Woburn MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-658 A Medford MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-832 A Stoneham MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-922 A Revere MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-970 A Woburn MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
857-353 A Boston MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
857-626 A Belmont MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
857-996 A Boston MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
978-206 A Acton MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
978-221 A Lowell MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
978-224 A Salem MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
978-254 A Concord MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
978-298 A Maynard MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
978-338 A Beverly MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
978-347 A Hamilton MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
978-357 A North Reading MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
978-377 A Haverhill MA 7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      

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Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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