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: SNANCALWDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
323-301 A Los Angeles: DA 14 CA 7262 XO CALIFORNIA, INC. 730      
323-301 4 Los Angeles: DA 14 CA 7262 XO CALIFORNIA, INC. 730      
323-305 A Los Angeles: DA 09 CA 7262 XO CALIFORNIA, INC. 730      
323-305 0 Los Angeles: DA 09 CA 7262 XO CALIFORNIA, INC. 730      
323-305 7 Los Angeles: DA 09 CA 7262 XO CALIFORNIA, INC. 730      
424-299 3 Santa Monica: Santa Monica DA CA 7262 XO CALIFORNIA, INC. 730      
909-288 0 Claremont-San Dimas CA 7262 XO CALIFORNIA, INC. 730      
949-237 5 Irvine CA 7262 XO CALIFORNIA, INC. 730      
949-237 6 Irvine CA 7262 XO CALIFORNIA, INC. 730      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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