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 3 4 5 >>

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   
202-949 A Washington Zone 1 DC   236   2020-03-16   
202-949 9 Washington Zone 1 DC   236   2020-03-16   
205-825 A Birmingham AL   476   2019-03-11   
205-825 9 Birmingham AL   476   2019-03-11   
205-885 A Ashville AL   476   2020-02-09   
205-885 9 Ashville AL   476   2020-02-09   
205-946 6 Birmingham AL   476   2020-04-25   
206-806 A Seattle WA   674   2019-06-07   
206-806 9 Seattle WA   674   2019-06-07   
209-399 A Manteca CA   738   2019-11-23   
209-399 9 Manteca CA   738   2019-11-23   
210-940 A San Antonio TX   566   2020-04-12   
210-940 9 San Antonio TX   566   2020-04-12   
228-338 A Biloxi MS   484   2020-07-19   
228-338 8 Biloxi MS   484   2020-07-19   
228-338 9 Biloxi MS   484   2020-07-19   
253-993 3 Tacoma-Waverly WA   674   2019-09-15   
254-504 A Waco TX   556   2020-04-12   
254-504 9 Waco TX   556   2020-04-12   
256-696 A Huntsville AL   477   2020-04-02   
256-696 9 Huntsville AL   477   2020-04-02   
267-435 5 Philadelphia Suburban Zone 32 PA   228   2020-05-28   
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   
301-307 8 Washington Zone 13 (Baltimore LATA) MD   238   2020-05-01   
301-973 4 Washington Zone 14 (Baltimore LATA) MD   238   2020-05-02   
346-426 A Houston TX   560   2019-12-22   
346-426 9 Houston TX   560   2019-12-22   
380-333 7 Groveport OH   324   2020-05-09   
380-333 8 Groveport OH   324   2020-05-09   
380-799 A Columbus OH   324   2019-03-23   
380-799 9 Columbus OH   324   2019-03-23   
385-301 3 Salt Lake City UT   660   2020-06-01   
385-318 7 Murray UT   660   2020-06-05   
385-318 8 Murray UT   660   2020-06-05   
385-330 6 Pleasant Grove UT   660   2020-06-01   
385-330 9 Pleasant Grove UT   660   2020-06-01   
385-340 A Bountiful UT   660   2020-07-04   
385-340 8 Bountiful UT   660   2020-07-04   
385-340 9 Bountiful UT   660   2020-07-04   
385-346 4 Midvale UT   660   2020-06-27   
385-346 5 Midvale UT   660   2020-06-27   
385-348 6 Kaysville UT   660   2020-06-01   
385-348 7 Kaysville UT   660   2020-06-01   
385-386 A Salt Lake City UT   660   2020-03-07   
385-386 9 Salt Lake City UT   660   2020-03-07   

1 2 3 4 5 >>

Last updated: Sun, 31 May 2020 11:59:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.