Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: SNFCCA21XOZ

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
669-206 5 Sunnyvale CA 321J HD CARRIER LLC 722   2016-10-22   
669-206 6 Sunnyvale CA 321J HD CARRIER LLC 722   2016-10-22   
669-274 9 San Jose: South DA CA 321J HD CARRIER LLC 722   2016-06-09   
669-275 0 San Jose: South DA CA 321J HD CARRIER LLC 722   2016-06-09   
669-275 1 San Jose: South DA CA 321J HD CARRIER LLC 722   2016-06-09   
669-275 6 San Jose: South DA CA 321J HD CARRIER LLC 722   2016-06-09   
669-275 8 San Jose: South DA CA 321J HD CARRIER LLC 722   2016-06-09   
669-365 7 San Jose: South DA CA 321J HD CARRIER LLC 722   2026-05-25   
707-606 2 Benicia CA 321J HD CARRIER LLC 722   2016-08-28   
707-606 3 Benicia CA 321J HD CARRIER LLC 722   2016-06-09   
707-606 4 Benicia CA 321J HD CARRIER LLC 722   2016-06-09   
707-606 5 Benicia CA 321J HD CARRIER LLC 722   2016-06-09   
707-606 6 Benicia CA 321J HD CARRIER LLC 722   2016-06-09   
707-606 7 Benicia CA 321J HD CARRIER LLC 722   2016-06-09   
707-742 8 Benicia CA 321J HD CARRIER LLC 722   2016-08-28   
831-322 6 Watsonville CA 321J HD CARRIER LLC 722   2016-10-22   
831-777 0 Santa Cruz CA 321J HD CARRIER LLC 722   2016-06-28   
831-777 1 Santa Cruz CA 321J HD CARRIER LLC 722   2016-06-28   
831-999 4 Santa Cruz CA 321J HD CARRIER LLC 722   2016-06-13   
831-999 5 Santa Cruz CA 321J HD CARRIER LLC 722   2016-06-17   
831-999 6 Santa Cruz CA 321J HD CARRIER LLC 722   2016-06-13   
925-500 6 Martinez CA 321J HD CARRIER LLC 722   2016-06-06   
925-500 7 Martinez CA 321J HD CARRIER LLC 722   2016-06-06   
925-500 9 Martinez CA 321J HD CARRIER LLC 722   2016-06-06   
925-514 4 Martinez CA 321J HD CARRIER LLC 722   2026-05-25   
925-514 5 Martinez CA 321J HD CARRIER LLC 722   2026-05-25   
925-514 6 Martinez CA 321J HD CARRIER LLC 722   2026-05-25   
925-623 0 Pleasanton CA 321J HD CARRIER LLC 722   2016-10-20   
925-693 2 Clayton CA 321J HD CARRIER LLC 722   2016-10-20   
925-693 4 Clayton CA 321J HD CARRIER LLC 722   2016-10-20   
925-693 5 Clayton CA 321J HD CARRIER LLC 722   2016-10-20   
925-693 6 Clayton CA 321J HD CARRIER LLC 722   2016-10-20   
925-723 5 Martinez CA 321J HD CARRIER LLC 722   2016-06-06   
925-723 6 Martinez CA 321J HD CARRIER LLC 722   2016-06-06   
925-844 0 Clayton CA 321J HD CARRIER LLC 722   2016-10-20   
925-844 6 Clayton CA 321J HD CARRIER LLC 722   2016-10-20   
925-844 8 Clayton CA 321J HD CARRIER LLC 722   2016-10-20   
925-957 3 Martinez CA 321J HD CARRIER LLC 722   2013-04-05   
925-993 A Clayton CA 321J HD CARRIER LLC 722      
925-993 0 Clayton CA 321J HD CARRIER LLC 722   2016-10-20   
925-993 3 Clayton CA 321J HD CARRIER LLC 722   2016-10-20   
925-993 5 Clayton CA 321J HD CARRIER LLC 722   2016-10-20   
925-993 6 Clayton CA 321J HD CARRIER LLC 722   2016-10-20   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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