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.
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Switch: SNFCCA21XOZ

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
408-897 2 San Antonio CA 321J HD CARRIER LLC 722      
415-909 1 San Francisco: Juniper DA CA 321J HD CARRIER LLC 722      
415-909 6 San Francisco: Juniper DA CA 321J HD CARRIER LLC 722      
510-937 5 Crockett CA 321J HD CARRIER LLC 722      
510-937 8 Crockett CA 321J HD CARRIER LLC 722      
628-629 A San Francisco: Central DA CA 321J HD CARRIER LLC 722      
628-629 9 San Francisco: Central DA CA 321J HD CARRIER LLC 722      
650-662 A La Honda CA 321J HD CARRIER LLC 722      
650-662 3 La Honda CA 321J HD CARRIER LLC 722      
650-662 7 La Honda CA 321J HD CARRIER LLC 722      
650-662 8 La Honda CA 321J HD CARRIER LLC 722      
650-662 9 La Honda CA 321J HD CARRIER LLC 722      
650-673 4 La Honda CA 321J HD CARRIER LLC 722      
650-673 5 La Honda CA 321J HD CARRIER LLC 722      
650-673 8 La Honda CA 321J HD CARRIER LLC 722      
650-673 9 La Honda CA 321J HD CARRIER LLC 722      
650-748 1 La Honda CA 321J HD CARRIER LLC 722      
650-748 3 La Honda CA 321J HD CARRIER LLC 722      
650-748 5 La Honda CA 321J HD CARRIER LLC 722      
650-748 6 La Honda CA 321J HD CARRIER LLC 722      
650-748 7 La Honda CA 321J HD CARRIER LLC 722      
650-748 8 La Honda CA 321J HD CARRIER LLC 722      
650-795 1 La Honda CA 321J HD CARRIER LLC 722      
650-795 2 La Honda CA 321J HD CARRIER LLC 722      
650-795 3 La Honda CA 321J HD CARRIER LLC 722      
650-795 4 La Honda CA 321J HD CARRIER LLC 722      
650-795 5 La Honda CA 321J HD CARRIER LLC 722      
650-795 8 La Honda CA 321J HD CARRIER LLC 722      
650-795 9 La Honda CA 321J HD CARRIER LLC 722      
669-274 9 San Jose: South DA CA 321J HD CARRIER LLC 722      
669-275 0 San Jose: South DA CA 321J HD CARRIER LLC 722      
669-275 1 San Jose: South DA CA 321J HD CARRIER LLC 722      
669-275 6 San Jose: South DA CA 321J HD CARRIER LLC 722      
669-275 8 San Jose: South DA CA 321J HD CARRIER LLC 722      
707-606 3 Benicia CA 321J HD CARRIER LLC 722      
707-606 4 Benicia CA 321J HD CARRIER LLC 722      
707-606 5 Benicia CA 321J HD CARRIER LLC 722      
707-606 6 Benicia CA 321J HD CARRIER LLC 722      
707-606 7 Benicia CA 321J HD CARRIER LLC 722      
831-777 0 Santa Cruz CA 321J HD CARRIER LLC 722      
831-777 1 Santa Cruz CA 321J HD CARRIER LLC 722      
831-999 4 Santa Cruz CA 321J HD CARRIER LLC 722      
831-999 5 Santa Cruz CA 321J HD CARRIER LLC 722      
831-999 6 Santa Cruz CA 321J HD CARRIER LLC 722      
925-500 6 Martinez CA 321J HD CARRIER LLC 722      
925-500 7 Martinez CA 321J HD CARRIER LLC 722      
925-500 9 Martinez CA 321J HD CARRIER LLC 722      
925-723 5 Martinez CA 321J HD CARRIER LLC 722      
925-723 6 Martinez CA 321J HD CARRIER LLC 722      
925-844 0 Clayton CA 321J HD CARRIER LLC 722      
925-844 6 Clayton CA 321J HD CARRIER LLC 722      
925-844 8 Clayton CA 321J HD CARRIER LLC 722      
925-993 0 Clayton CA 321J HD CARRIER LLC 722      
925-993 3 Clayton CA 321J HD CARRIER LLC 722      

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

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