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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OCN: 568G PEERLESS NETWORK OF MARYLAND, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
240-201 A Ridge MD   236      
240-204 8 Washington Zone 2 MD   236   2013-05-03   
240-204 9 Washington Zone 2 MD   236   2013-05-03   
240-208 A La Plata MD   236      
240-209 A Indian Head MD   236      
240-213 A Waldorf MD   236      
240-214 A Mechanicsville MD   236      
240-218 A Nanjemoy MD   236      
240-219 A Ridge MD   236      
240-219 0 Ridge MD   236   2014-11-13   
240-220 A Poolesville MD   236      
240-224 8 Gaithersburg MD   236   2013-05-03   
240-224 9 Gaithersburg MD   236   2013-05-03   
240-241 1 Washington Zone 13 MD   236   2013-05-03   
240-241 9 Washington Zone 13 MD   236   2013-05-03   
240-248 A Ridge MD   236      
240-250 A Brandywine MD   236      
240-255 A Poolesville MD   236      
240-266 A Washington Zone 14 MD   236      
240-269 A Washington Zone 16 MD   236      
240-282 A Mechanicsville MD   236      
240-304 3 Washington Zone 5 MD   236   2012-09-15   
240-318 1 Washington Zone 16 MD   236   2013-05-04   
240-318 9 Washington Zone 16 MD   236   2013-05-04   
240-331 A Washington Zone 3 MD   236      
240-332 A Tompkinsville MD   236      
240-352 A La Plata MD   236      
240-358 A Damascus MD   236      
240-359 A Indian Head MD   236      
240-368 A Waldorf MD   236      
240-371 A Washington Zone 12 MD   236      
240-376 A Hughesville MD   236      
240-384 A Lexington Park-Great Mills MD   236      
240-414 A Washington Zone 6 MD   236      
240-436 5 Buckeystown MD   240   2018-03-11   
240-465 A Washington Zone 2 MD   236      
240-488 2 Oakland MD   240   2018-03-16   
240-503 A Tompkinsville MD   236   2013-06-07   
240-503 1 Tompkinsville MD   236   2013-06-07   
240-503 2 Tompkinsville MD   236   2013-06-07   
240-509 1 Washington Zone 14 (Baltimore LATA) MD   238   2013-05-05   
240-509 8 Washington Zone 14 (Baltimore LATA) MD   238   2013-05-05   
240-512 5 Washington Zone 13 (Baltimore LATA) MD   238   2012-11-23   
240-524 A Laurel MD   236      
240-525 A Washington Zone 15 MD   236      
240-526 A Leonardtown MD   236      
240-530 8 Waldorf MD   236   2013-10-26   
240-536 A Ashton MD   236      
240-539 A Washington Zone 4 MD   236      
240-545 7 Washington Zone 15 MD   236   2010-08-19   

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Last updated: Wed, 10 Apr 2019 01:22:05 UTC

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