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.

OCN: 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
510-300 6 Hayward CA SNJSCAYB0MD  722      
510-300 8 Hayward CA SNJSCAYB0MD  722      
510-300 9 Hayward CA SNJSCAYB0MD  722      
510-318 5 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722   2012-10-20   
510-318 6 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722   2007-03-25   
510-318 7 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722   2007-03-25   
510-318 8 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722   2009-12-18   
510-342 A Hayward CA SNJSCAYB0MD  722      
510-342 0 Hayward CA SNJSCAYB0MD  722      
510-342 7 Hayward CA SNJSCAYB0MD  722      
510-343 A Oakland: Trinidad DA CA SNJSCAYB0MD  722      
510-343 0 Oakland: Trinidad DA CA SNJSCAYB0MD  722      
510-343 2 Oakland: Trinidad DA CA SNJSCAYB0MD  722      
510-345 6 Oakland: Berkeley DA CA SNJSCAYB0MD  722   2016-04-15   
510-372 8 Hayward CA SNJSCAYB0MD  722      
510-373 5 Oakland: Alameda DA CA SNJSCAYB0MD  722   2001-09-03   
510-380 1 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722      
510-401 A Fremont-Newark: Greenleaf DA CA SNJSCAYB0MD  722      
510-401 2 Fremont-Newark: Greenleaf DA CA SNJSCAYB0MD  722      
510-401 5 Fremont-Newark: Greenleaf DA CA SNJSCAYB0MD  722   2001-07-30   
510-401 6 Fremont-Newark: Greenleaf DA CA SNJSCAYB0MD  722      
510-401 8 Fremont-Newark: Greenleaf DA CA SNJSCAYB0MD  722      
510-402 A Fremont-Newark: Main DA CA SNJSCAYB0MD  722      
510-403 A Fremont-Newark: Oliver DA CA SNJSCAYB0MD  722      
510-403 2 Fremont-Newark: Oliver DA CA SNJSCAYB0MD  722      
510-403 3 Fremont-Newark: Oliver DA CA SNJSCAYB0MD  722      
510-403 7 Fremont-Newark: Oliver DA CA SNJSCAYB0MD  722   2007-12-27   
510-413 2 Fremont-Newark: Oliver DA CA SNJSCAYB0MD  722   2010-04-04   
510-431 5 Fremont-Newark: Greenleaf DA CA SNJSCAYB0MD  722   2001-09-03   
510-433 8 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722   2011-08-28   
510-439 3 Richmond CA SNJSCAYB0MD  722   2003-02-28   
510-439 4 Richmond CA SNJSCAYB0MD  722   2001-07-30   
510-441 4 Fremont-Newark: Greenleaf DA CA SNJSCAYB0MD  722   2007-03-15   
510-456 A Fremont-Newark: Main DA CA SNJSCAYB0MD  722      
510-456 1 Fremont-Newark: Main DA CA SNJSCAYB0MD  722      
510-456 2 Fremont-Newark: Main DA CA SNJSCAYB0MD  722      
510-456 3 Fremont-Newark: Main DA CA SNJSCAYB0MD  722      
510-456 4 Fremont-Newark: Main DA CA SNJSCAYB0MD  722      
510-456 7 Fremont-Newark: Main DA CA SNJSCAYB0MD  722      
510-456 9 Fremont-Newark: Main DA CA SNJSCAYB0MD  722      
510-463 A Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722      
510-463 0 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722      
510-463 2 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722      
510-463 5 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722      
510-463 6 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722      
510-463 9 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722      
510-485 5 Oakland: Fruitvale DA CA SNJSCAYB0MD  722   2003-02-28   
510-485 7 Oakland: Fruitvale DA CA SNJSCAYB0MD  722   2001-07-30   
510-496 A Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722      
510-496 0 Oakland: Main-Piedmont DA CA SNJSCAYB0MD  722      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 >>

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.