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: 9748 AMERICAN MESSAGING SERVICES, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
415-679 A San Francisco: Central DA CA SNFCCA21XUY  722      
415-790 A San Francisco: Central DA CA SNFCCA21XUY  722      
415-838 A San Rafael CA SNFCCA21XUY  722      
419-218 A Toledo OH TOLDOH21XUX  326      
419-319 A Upper Sandusky OH TOLDOH21XUX  326      
419-361 A Toledo OH TOLDOH21XUX  326      
419-620 A Toledo OH TOLDOH21XUX  326      
419-640 A Toledo OH TOLDOH21XUX  326      
419-802 A Fremont OH TOLDOH21XUX  326      
419-803 A Sandusky OH TOLDOH21XUX  326      
419-805 A Tiffin OH TOLDOH21XUX  326      
419-815 A Sandusky OH TOLDOH21XUX  326      
419-816 A Fremont OH TOLDOH21XUX  326      
419-817 A Findlay OH TOLDOH21XUX  326      
440-489 A Trinity OH CLEVOH62X0Z  320      
440-492 A Burton OH CLEVOH62X0Z  320      
440-675 A Willoughby OH CLEVOH62X0Z  320      
440-733 A Painesville OH CLEVOH62X0Z  320      
440-764 A Burton OH CLEVOH62X0Z  320      
479-382 A Fort Smith AR ALMAARXA0MD  526      
501-245 A Little Rock AR LTRKARFRXKY  528      
501-334 A Searcy AR LTRKARFRXKY  528      
501-360 A Little Rock AR LTRKARFRXKY  528      
501-390 A Little Rock AR LTRKARFRXKY  528      
501-395 A Little Rock AR LTRKARFRXHZ  528      
501-405 A Little Rock AR LTRKARFRXHZ  528      
501-465 A Conway AR LTRKARFRXKY  528      
501-543 A Benton AR LTRKARFRXKY  528      
501-763 A Hot Springs AR LTRKARFRXKY  528      
501-828 A Little Rock AR LTRKARFRXKY  528      
502-332 A Louisville KY LSVLKYWEXNX  462      
502-336 A Louisville KY LSVLKYWEXNX  462      
502-342 A Louisville KY LSVLKYWEXNX  462      
502-344 A Louisville KY LSVLKYWEXNX  462      
502-346 A Louisville KY LSVLKYWEXNX  462      
502-372 A Louisville KY LSVLKYWEXNX  462      
502-421 A Louisville KY LSVLKYWEXNX  462      
502-621 A Louisville KY LSVLKYWEXNX  462      
508-307 A Taunton MA WOBNMADW2MD  128      
508-327 A Auburn MA BSTNMABLOMD  128      
508-537 A Auburn MA BSTNMABLOMD  128      
508-806 A Auburn MA BSTNMABLOMD  128      
509-880 A Spokane WA YAKMWABL0MD  676      
509-889 A Spokane WA YAKMWABL0MD  676      
510-349 A Richmond CA SNFCCA21XUY  722      
510-718 A Oakland: Main-Piedmont DA CA HYWRCAST1MD  722      
510-968 A Fremont-Newark: Main DA CA SNFCCA21XUY  722      
512-204 A Austin TX AUSTTXGRX8Y  558      
512-208 A Austin TX AUSTTXGRX8Y  558      
512-209 A Austin TX AUSTTXGRX8Y  558      

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

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