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: 321J HD CARRIER LLC

1 2 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
202-920 A Washington Zone 1 DC   236   2019-03-30   
202-920 9 Washington Zone 1 DC   236   2019-03-30   
205-825 A Birmingham AL   476   2019-03-11   
205-825 9 Birmingham AL   476   2019-03-11   
206-806 A Seattle WA   674   2019-06-07   
206-806 9 Seattle WA   674   2019-06-07   
267-667 A Philadelphia Zone 1 PA   228   2019-02-03   
267-667 9 Philadelphia Zone 1 PA   228   2019-02-03   
279-200 A Sacramento: Main DA CA   726      
279-200 9 Sacramento: Main DA CA   726   2019-06-10   
380-799 A Columbus OH   324   2019-03-23   
380-799 9 Columbus OH   324   2019-03-23   
385-799 A Salt Lake City UT   660   2019-05-31   
385-799 9 Salt Lake City UT   660   2019-05-31   
401-799 A Providence RI   130   2019-02-08   
401-799 9 Providence RI   130   2019-02-08   
412-844 A Pittsburgh Zone 8 PA   234   2019-05-16   
412-844 9 Pittsburgh Zone 8 PA   234   2019-05-16   
425-535 A Everett WA   674   2018-12-27   
425-535 9 Everett WA   674   2018-12-27   
425-585 6 Silver Lake WA   674   2019-05-05   
470-480 A Atlanta GA   438   2019-03-10   
470-480 9 Atlanta GA   438   2019-03-10   
513-993 A Cincinnati OH   922   2019-02-10   
513-993 9 Cincinnati OH   922   2019-02-10   
516-916 A Nassau Zone 1 NY   132   2018-12-16   
516-916 9 Nassau Zone 1 NY   132   2018-12-16   
602-609 A Phoenix AZ   666   2019-08-01   
602-609 9 Phoenix AZ   666   2019-08-01   
628-629 A San Francisco: Central DA CA   722   2019-02-09   
628-629 9 San Francisco: Central DA CA   722   2019-02-09   
681-799 A Charleston Zone 1 WV   254   2019-03-23   
681-799 9 Charleston Zone 1 WV   254   2019-03-23   
701-791 A Bismarck ND   638   2019-05-31   
701-791 9 Bismarck ND   638   2019-05-31   
716-815 A Buffalo NY   140   2019-03-09   
716-815 9 Buffalo NY   140   2019-03-09   
719-820 A Colorado Springs-Main CO   658   2019-03-10   
719-820 9 Colorado Springs-Main CO   658   2019-03-10   
720-830 A Denver CO   656   2019-01-24   
720-830 9 Denver CO   656   2019-01-24   
725-735 A Las Vegas NV   721   2019-02-11   
725-735 9 Las Vegas NV   721   2019-02-11   
760-548 A Palm Springs CA   973      
760-548 9 Palm Springs CA   973   2019-04-28   
775-799 A Reno NV   720   2019-01-06   
775-799 9 Reno NV   720   2019-01-06   
786-799 A Miami FL   46017   2018-12-29   
786-799 9 Miami FL   46017   2018-12-29   
804-806 A Richmond VA   248   2019-03-11   

1 2 >>

Last updated: Sat, 27 Jul 2019 10:59:49 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.