Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Sonoma, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
707-991 7 SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-08-11   
707-991 8 HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2024-03-23   
707-991 9 SNJUCACL00Z  490J BOOST SUBSCRIBERCO L.L.C. 722   2023-10-28   
707-996 A SONMCA12DS0  9740 PACIFIC BELL 722      

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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