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: WASHDC12DS6

<< 1 2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-465 0 Washington Zone 2 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-465 9 Washington Zone 2 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-518 0 Waldorf MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2023-07-24   
240-524 A Laurel MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-524 4 Laurel MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-524 5 Laurel MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-524 7 Laurel MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-524 9 Laurel MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-525 A Washington Zone 15 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-525 9 Washington Zone 15 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-526 A Leonardtown MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-526 9 Leonardtown MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-530 8 Waldorf MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-10-26   
240-536 A Ashton MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-536 9 Ashton MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-545 7 Washington Zone 15 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2010-08-19   
240-635 3 Tompkinsville MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2019-12-18   
240-650 1 Washington Zone 3 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2012-09-15   
240-652 7 Mechanicsville MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-10-26   
240-666 0 Nanjemoy MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2015-12-03   
240-685 8 Brandywine MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2010-08-15   
240-695 9 Washington Zone 5 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2020-04-30   
240-697 A Mechanicsville MD 469J CORETEL MARYLAND, INC. - MD 236      
240-697 6 Mechanicsville MD 469J CORETEL MARYLAND, INC. - MD 236   2019-11-11   
240-757 A Washington Zone 13 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-757 3 Washington Zone 13 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-757 9 Washington Zone 13 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-768 5 Nanjemoy MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2021-07-12   
240-799 8 Brandywine MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2020-10-30   
240-839 9 Washington Zone 3 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-10-17   
240-858 5 Washington Zone 2 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2020-02-26   
240-858 8 Washington Zone 2 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2016-10-14   
240-901 0 La Plata MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2014-10-11   
240-901 8 La Plata MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2015-12-03   
240-961 3 Poolesville MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2022-11-07   
240-966 9 Washington Zone 16 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2023-02-27   
240-986 1 Nanjemoy MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-10-26   
301-298 7 Washington Zone 15 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2016-11-19   
301-579 0 Brandywine MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2019-12-16   
301-715 8 Washington Zone 15 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2016-11-19   
301-719 5 Washington Zone 16 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2020-04-15   
301-747 0 Washington Zone 6 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2015-06-06   
301-888 8 Washington Zone 16 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2012-04-02   
301-965 8 Washington Zone 6 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-10-25   
301-971 0 Washington Zone 6 MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2012-09-15   
410-264 1 Waterloo (Washington DC LATA) MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2019-03-06   
410-724 1 Waterloo (Washington DC LATA) MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2020-10-26   
410-834 2 Waterloo (Washington DC LATA) MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2010-08-19   
410-834 4 Waterloo (Washington DC LATA) MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2019-12-18   
410-888 0 Waterloo (Washington DC LATA) MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2021-01-07   
540-628 8 Stafford VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2013-11-13   
571-341 8 Washington Zone 17 VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2015-10-18   
571-401 9 Herndon VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2019-07-10   
571-461 5 Washington Zone 17 VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2020-03-06   
571-489 0 Washington Zone 17 VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2014-12-25   
571-493 A Dale City VA 5832 CORETEL VIRGINIA, LLC - VA 236      
571-496 7 Lorton Metro VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2020-06-30   
571-546 4 Washington Zone 19 VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2023-10-14   
571-589 0 Dale City VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2015-12-03   
571-616 8 Engleside VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2018-03-15   
571-634 3 Washington Zone 17 VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2019-03-12   
571-655 6 Braddock VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2018-03-14   
571-685 4 Herndon VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2018-12-08   
571-777 9 Washington Zone 8 VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2015-10-18   
571-901 0 Engleside VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2020-11-20   
571-932 9 Lorton Metro VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2016-12-02   
667-322 9 Waterloo (Washington DC LATA) MD 568G PEERLESS NETWORK OF MARYLAND, LLC 236   2021-07-13   
703-372 0 Engleside VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2012-05-10   
703-382 1 Engleside VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2015-05-15   
703-454 0 Engleside VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2013-10-25   
703-782 9 Engleside VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2016-08-26   
703-952 3 Engleside VA 275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2018-05-10   
771-202 5 Washington Zone 1 DC 275F PEERLESS NETWORK OF THE DISTRICT OF COLUMBIA, DC 236   2023-04-22   
771-208 5 Washington Zone 1 DC 275F PEERLESS NETWORK OF THE DISTRICT OF COLUMBIA, DC 236   2022-05-24   
771-216 3 Washington Zone 1 DC 275F PEERLESS NETWORK OF THE DISTRICT OF COLUMBIA, DC 236   2023-09-08   
771-217 5 Washington Zone 1 DC 275F PEERLESS NETWORK OF THE DISTRICT OF COLUMBIA, DC 236   2022-11-26   
771-888 6 Washington Zone 1 DC 275F PEERLESS NETWORK OF THE DISTRICT OF COLUMBIA, DC 236   2022-01-15   

<< 1 2

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.