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.

NPA: 831 [Rate centres in NPA 831] [Dial plan for NPA 831]

Region: CA

OCN: 981E BANDWIDTH.COM CLEC, LLC - CA

1 2 3 4 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
831-200 1 Monterey CA MTRYCA012MD  736   2015-06-20   
831-200 3 Monterey CA MTRYCA012MD  736   2015-06-20   
831-200 4 Monterey CA MTRYCA012MD  736   2015-06-20   
831-200 8 Monterey CA MTRYCA012MD  736   2016-07-28   
831-200 9 Monterey CA MTRYCA012MD  736   2016-07-28   
831-204 0 Monterey CA MTRYCA012MD  736   2010-07-04   
831-204 1 Monterey CA MTRYCA012MD  736   2010-08-21   
831-204 2 Monterey CA MTRYCA012MD  736   2010-03-07   
831-204 5 Monterey CA MTRYCA012MD  736   2010-09-25   
831-204 6 Monterey CA MTRYCA012MD  736   2010-10-14   
831-204 8 Monterey CA MTRYCA012MD  736   2011-06-25   
831-204 9 Monterey CA MTRYCA012MD  736   2012-08-11   
831-205 0 Hollister CA MTRYCA012MD  736   2010-03-07   
831-205 1 Hollister CA MTRYCA012MD  736   2010-08-08   
831-205 3 Hollister CA MTRYCA012MD  736   2011-07-25   
831-205 4 Hollister CA MTRYCA012MD  736   2011-10-10   
831-205 7 Hollister CA MTRYCA012MD  736   2012-04-19   
831-216 6 Felton CA SNFCCA21XUY  722   2010-03-04   
831-216 8 Felton CA SNFCCA21XUY  722   2010-09-19   
831-217 3 Boulder Creek CA SNFCCA21XUY  722   2010-08-28   
831-218 5 Ben Lomond CA SNFCCA21XUY  722   2010-08-28   
831-219 8 Aptos CA SNFCCA21XUY  722   2014-09-18   
831-221 0 San Ardo CA MTRYCA012MD  736   2010-08-30   
831-221 6 San Ardo CA MTRYCA012MD  736   2015-10-15   
831-221 8 San Ardo CA MTRYCA012MD  736   2014-03-28   
831-222 0 Felton CA SNFCCA21XUY  722   2011-04-01   
831-222 5 Felton CA SNFCCA21XUY  722   2012-06-03   
831-223 0 Soledad CA MTRYCA012MD  736      
831-223 1 Soledad CA MTRYCA012MD  736   2010-07-04   
831-223 9 Soledad CA MTRYCA012MD  736      
831-224 8 Monterey CA MTRYCA012MD  736   2022-10-17   
831-226 1 Santa Cruz CA SNFCCA21XUY  722   2015-10-26   
831-232 0 Chualar CA MTRYCA012MD  736   2010-08-28   
831-232 6 Chualar CA MTRYCA012MD  736   2015-02-23   
831-232 8 Chualar CA MTRYCA012MD  736   2015-10-15   
831-237 0 Soledad CA MTRYCA012MD  736   2015-11-07   
831-237 7 Soledad CA MTRYCA012MD  736   2014-08-17   
831-238 9 Carmel CA MTRYCA012MD  736   2010-07-04   
831-244 A Big Sur CA MTRYCA012MD  736      
831-244 0 Big Sur CA MTRYCA012MD  736   2010-08-14   
831-244 3 Big Sur CA MTRYCA012MD  736   2014-07-07   
831-244 6 Big Sur CA MTRYCA012MD  736   2014-08-02   
831-244 8 Big Sur CA MTRYCA012MD  736   2015-10-15   
831-245 0 Hollister CA MTRYCA012MD  736   2014-05-02   
831-245 3 Hollister CA MTRYCA012MD  736   2014-10-11   
831-246 6 Ben Lomond CA SNFCCA21XUY  722   2014-09-11   
831-246 8 Ben Lomond CA SNFCCA21XUY  722   2013-04-29   
831-256 7 Salinas CA MTRYCA012MD  736   2015-10-26   
831-263 9 King City CA MTRYCA012MD  736   2014-09-28   
831-264 A Monterey CA MTRYCA012MD  736      

1 2 3 4 >>

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.