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.

OCN: 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
301-693 A Frederick MD FRDRMDFRKMD  240      
301-714 8 Hagerstown MD FRDRMDFRKMD  240   2015-11-27   
301-728 A Washington Zone 3 MD BTVLMD12CMA  236      
301-732 9 Frederick MD FRDRMDFRKMD  240   2014-10-10   
301-740 4 Gaithersburg MD   236   2005-04-07   
301-740 5 Gaithersburg MD   236   2006-02-05   
301-747 5 Washington Zone 6 MD BTVLMD12CMA  236   2008-06-16   
301-747 8 Washington Zone 6 MD BTVLMD12CMA  236   2011-02-07   
301-748 0 Frederick MD FRDRMDFRKMD  240      
301-753 0 Washington Zone 6 MD BTVLMD12CMA  236   2023-09-29   
301-755 3 Washington Zone 3 MD BTVLMD12CMA  236   2003-09-30   
301-755 4 Washington Zone 3 MD BTVLMD12CMA  236   2003-09-17   
301-755 7 Washington Zone 3 MD BTVLMD12CMA  236   2003-07-29   
301-755 8 Washington Zone 3 MD BTVLMD12CMA  236   2007-10-12   
301-760 0 Washington Zone 2 MD BTVLMD12CMA  236   2005-12-23   
301-760 6 Washington Zone 2 MD BTVLMD12CMA  236   2005-12-23   
301-760 8 Washington Zone 2 MD BTVLMD12CMA  236   2005-09-13   
301-760 9 Washington Zone 2 MD BTVLMD12CMA  236   2005-09-13   
301-765 4 Washington Zone 10 MD BTVLMD12CMA  236   2008-11-15   
301-768 0 Washington Zone 3 MD BTVLMD12CMA  236   2004-08-16   
301-768 1 Washington Zone 3 MD BTVLMD12CMA  236   2003-12-28   
301-768 2 Washington Zone 3 MD BTVLMD12CMA  236   2004-06-25   
301-768 3 Washington Zone 3 MD BTVLMD12CMA  236   2004-08-14   
301-768 5 Washington Zone 3 MD BTVLMD12CMA  236   2004-01-07   
301-768 6 Washington Zone 3 MD BTVLMD12CMA  236   2004-09-03   
301-768 7 Washington Zone 3 MD BTVLMD12CMA  236   2004-02-02   
301-768 8 Washington Zone 3 MD BTVLMD12CMA  236   2004-02-02   
301-768 9 Washington Zone 3 MD BTVLMD12CMA  236   2004-06-25   
301-792 A Washington Zone 3 MD BTVLMD12CMA  236      
301-793 A Washington Zone 3 MD BTVLMD12CMA  236      
301-795 5 Washington Zone 10 MD BTVLMD12CMA  236   2008-11-15   
301-795 8 Washington Zone 10 MD BTVLMD12CMA  236   2008-11-15   
301-800 A Hagerstown MD FRDRMDFRKMD  240      
301-800 3 Hagerstown MD FRDRMDFRKMD  240   2010-06-13   
301-800 4 Hagerstown MD FRDRMDFRKMD  240   2010-06-13   
301-803 0 Washington Zone 2 MD BTVLMD12CMA  236   2006-07-27   
301-803 8 Washington Zone 2 MD BTVLMD12CMA  236   2006-05-06   
301-803 9 Washington Zone 2 MD BTVLMD12CMA  236   2006-07-27   
301-804 7 Ashton MD BTVLMD12CMA  236   2013-12-09   
301-804 8 Ashton MD BTVLMD12CMA  236   2013-12-09   
301-806 A Washington Zone 3 MD BTVLMD12CMA  236      
301-806 0 Washington Zone 3 MD BTVLMD12CMA  236      
301-806 1 Washington Zone 3 MD BTVLMD12CMA  236      
301-806 2 Washington Zone 3 MD BTVLMD12CMA  236      
301-806 3 Washington Zone 3 MD BTVLMD12CMA  236      
301-806 4 Washington Zone 3 MD BTVLMD12CMA  236      
301-806 5 Washington Zone 3 MD BTVLMD12CMA  236      
301-806 6 Washington Zone 3 MD BTVLMD12CMA  236      
301-806 7 Washington Zone 3 MD BTVLMD12CMA  236      
301-806 8 Washington Zone 3 MD BTVLMD12CMA  236      
301-806 9 Washington Zone 3 MD BTVLMD12CMA  236      
301-825 2 Washington Zone 10 MD BTVLMD12CMA  236   2008-09-19   
301-825 3 Washington Zone 10 MD BTVLMD12CMA  236   2008-09-19   
301-825 4 Washington Zone 10 MD BTVLMD12CMA  236   2008-09-19   
301-825 6 Washington Zone 10 MD BTVLMD12CMA  236   2008-09-19   
301-828 0 Washington Zone 2 MD BTVLMD12CMA  236   2005-09-29   
301-828 5 Washington Zone 2 MD BTVLMD12CMA  236   2006-07-27   
301-828 6 Washington Zone 2 MD BTVLMD12CMA  236   2007-06-28   
301-828 7 Washington Zone 2 MD BTVLMD12CMA  236   2006-04-07   
301-835 8 Frederick MD FRDRMDFRKMD  240   2019-01-19   
301-836 8 Washington Zone 5 MD BTVLMD12CMA  236   2015-07-20   
301-841 5 Washington Zone 2 MD BTVLMD12CMA  236   2006-09-09   
301-844 A Washington Zone 3 MD BTVLMD12CMA  236      
301-844 0 Washington Zone 3 MD BTVLMD12CMA  236   2011-11-18   
301-844 2 Washington Zone 3 MD BTVLMD12CMA  236   2012-12-02   
301-844 3 Washington Zone 3 MD BTVLMD12CMA  236   2012-12-02   
301-844 4 Washington Zone 3 MD BTVLMD12CMA  236   2012-12-02   
301-850 8 Washington Zone 14 MD BTVLMD12CMA  236   2017-02-04   
301-851 1 Washington Zone 4 MD BTVLMD12CMA  236   2014-10-10   
301-851 9 Washington Zone 4 MD BTVLMD12CMA  236   2014-10-10   
301-852 4 Washington Zone 4 MD BTVLMD12CMA  236   2008-10-12   
301-893 5 Washington Zone 6 MD BTVLMD12CMA  236   2016-08-15   
301-905 1 Washington Zone 3 MD BTVLMD12CMA  236   2011-08-19   
301-905 2 Washington Zone 3 MD BTVLMD12CMA  236   2003-06-04   
301-905 6 Washington Zone 3 MD BTVLMD12CMA  236   2003-09-17   
301-905 7 Washington Zone 3 MD BTVLMD12CMA  236   2003-09-17   
301-905 8 Washington Zone 3 MD BTVLMD12CMA  236   2003-07-06   
301-907 1 Washington Zone 2 MD BTVLMD12CMA  236   2018-02-05   
301-913 4 Washington Zone 2 MD BTVLMD12CMA  236   2017-11-29   
301-915 4 Washington Zone 2 MD BTVLMD12CMA  236   2006-06-05   
301-915 5 Washington Zone 2 MD BTVLMD12CMA  236   2006-06-05   
301-915 6 Washington Zone 2 MD BTVLMD12CMA  236   2006-06-05   
301-915 7 Washington Zone 2 MD BTVLMD12CMA  236   2006-06-05   
301-917 4 Washington Zone 10 MD BTVLMD12CMA  236   2008-02-04   
301-917 5 Washington Zone 10 MD BTVLMD12CMA  236   2007-10-12   
301-917 7 Washington Zone 10 MD BTVLMD12CMA  236   2008-02-04   
301-920 4 Washington Zone 3 MD BTVLMD12CMA  236   2006-02-03   
301-920 6 Washington Zone 3 MD BTVLMD12CMA  236   2006-02-03   
301-921 5 Washington Zone 10 MD BTVLMD12CMA  236   2014-09-20   
301-960 6 Washington Zone 3 MD BTVLMD12CMA  236   2011-08-19   
301-968 5 Washington Zone 2 MD BTVLMD12CMA  236   2007-09-07   
301-971 7 Washington Zone 6 MD BTVLMD12CMA  236   2015-01-31   
301-978 1 Washington Zone 10 MD BTVLMD12CMA  236   2007-06-04   
301-978 6 Washington Zone 10 MD BTVLMD12CMA  236   2007-10-12   
301-979 0 Washington Zone 10 MD BTVLMD12CMA  236   2008-08-18   
301-979 1 Washington Zone 10 MD BTVLMD12CMA  236   2008-04-21   
301-979 2 Washington Zone 10 MD BTVLMD12CMA  236   2008-04-21   
301-979 5 Washington Zone 10 MD BTVLMD12CMA  236   2008-08-18   
301-979 8 Washington Zone 10 MD BTVLMD12CMA  236   2013-08-06   
301-991 A Hagerstown MD FRDRMDFRKMD  240      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 >>

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.