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: ARTNVAARXDY

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-901 2 La Plata MD 318J COMCAST IP PHONE, LLC 236   2014-10-03   
240-903 A Indian Head MD 318J COMCAST IP PHONE, LLC 236      
240-903 2 Indian Head MD 318J COMCAST IP PHONE, LLC 236   2014-01-17   
240-903 3 Indian Head MD 318J COMCAST IP PHONE, LLC 236   2014-01-27   
240-907 2 Washington Zone 10 MD 318J COMCAST IP PHONE, LLC 236   2016-09-11   
240-912 4 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2006-12-12   
240-912 5 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2006-12-12   
240-912 6 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2006-12-12   
240-912 7 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2006-12-12   
240-912 9 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2006-12-12   
240-929 4 Washington Zone 14 MD 318J COMCAST IP PHONE, LLC 236   2015-08-13   
240-929 6 Washington Zone 14 MD 318J COMCAST IP PHONE, LLC 236   2014-06-21   
240-948 6 Leonardtown MD 318J COMCAST IP PHONE, LLC 236   2023-09-15   
240-961 7 Poolesville MD 318J COMCAST IP PHONE, LLC 236   2023-02-21   
240-965 5 Washington Zone 13 MD 318J COMCAST IP PHONE, LLC 236   2015-06-17   
240-965 6 Washington Zone 13 MD 318J COMCAST IP PHONE, LLC 236   2006-12-14   
240-965 7 Washington Zone 13 MD 318J COMCAST IP PHONE, LLC 236   2006-12-14   
240-970 5 Washington Zone 12 MD 318J COMCAST IP PHONE, LLC 236   2015-09-12   
301-244 5 Washington Zone 3 MD 318J COMCAST IP PHONE, LLC 236   2005-07-20   
301-273 3 Washington Zone 3 MD 318J COMCAST IP PHONE, LLC 236   2006-06-03   
301-278 5 Washington Zone 5 MD 318J COMCAST IP PHONE, LLC 236   2008-08-01   
301-278 7 Washington Zone 5 MD 318J COMCAST IP PHONE, LLC 236   2008-08-01   
301-288 4 Washington Zone 12 MD 318J COMCAST IP PHONE, LLC 236   2013-10-04   
301-288 7 Washington Zone 12 MD 318J COMCAST IP PHONE, LLC 236   2006-10-09   
301-296 6 Washington Zone 10 MD 318J COMCAST IP PHONE, LLC 236   2013-08-01   
301-312 6 Washington Zone 2 MD 318J COMCAST IP PHONE, LLC 236   2006-09-18   
301-312 8 Washington Zone 2 MD 318J COMCAST IP PHONE, LLC 236   2006-09-18   
301-316 9 Washington Zone 5 MD 318J COMCAST IP PHONE, LLC 236   2015-03-31   
301-326 1 Washington Zone 3 MD 318J COMCAST IP PHONE, LLC 236   2006-10-09   
301-326 2 Washington Zone 3 MD 318J COMCAST IP PHONE, LLC 236   2006-10-09   
301-326 4 Washington Zone 3 MD 318J COMCAST IP PHONE, LLC 236   2006-10-09   
301-328 A Washington Zone 3 MD 318J COMCAST IP PHONE, LLC 236      
301-328 0 Washington Zone 3 MD 318J COMCAST IP PHONE, LLC 236   2006-08-05   
301-328 5 Washington Zone 3 MD 318J COMCAST IP PHONE, LLC 236   2007-10-09   
301-328 7 Washington Zone 3 MD 318J COMCAST IP PHONE, LLC 236   2007-10-09   
301-337 6 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2013-07-19   
301-339 8 Washington Zone 10 MD 318J COMCAST IP PHONE, LLC 236   2012-12-01   
301-347 6 Washington Zone 2 MD 318J COMCAST IP PHONE, LLC 236   2017-01-20   
301-347 7 Washington Zone 2 MD 318J COMCAST IP PHONE, LLC 236   2017-09-14   
301-348 8 Washington Zone 11 MD 318J COMCAST IP PHONE, LLC 236   2016-02-24   
301-355 4 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2009-08-28   
301-355 8 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2009-08-28   
301-366 0 Gaithersburg MD 318J COMCAST IP PHONE, LLC 236   2013-09-12   
301-374 8 Waldorf MD 318J COMCAST IP PHONE, LLC 236   2017-05-22   
301-377 A Laurel MD 318J COMCAST IP PHONE, LLC 236      
301-377 0 Laurel MD 318J COMCAST IP PHONE, LLC 236      
301-383 A Washington Zone 14 MD 318J COMCAST IP PHONE, LLC 236      
301-383 0 Washington Zone 14 MD 318J COMCAST IP PHONE, LLC 236   2012-11-03   
301-383 1 Washington Zone 14 MD 318J COMCAST IP PHONE, LLC 236      
301-383 2 Washington Zone 14 MD 318J COMCAST IP PHONE, LLC 236   2016-07-12   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.