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: 8826 LEVEL 3 COMMUNICATIONS, LLC - CA

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
650-436 6 San Mateo CA SNFCCASY5MD  722      
650-437 8 San Mateo CA SNFCCASY5MD  722      
650-437 9 San Mateo CA SNFCCASY5MD  722      
650-445 0 San Mateo CA SNFCCASY5MD  722      
650-446 3 Woodside CA SNFCCASY5MD  722      
650-450 4 Mountain View CA SNFCCASY5MD  722      
650-450 9 Mountain View CA SNFCCASY5MD  722      
650-452 6 South San Francisco CA SNFCCASY5MD  722      
650-458 0 San Mateo CA SNFCCASY5MD  722      
650-458 4 San Mateo CA SNFCCASY5MD  722      
650-460 6 Palo Alto CA SNFCCASY5MD  722      
650-461 3 Palo Alto CA SNFCCASY5MD  722      
650-461 4 Palo Alto CA SNFCCASY5MD  722      
650-461 8 Palo Alto CA SNFCCASY5MD  722      
650-461 9 Palo Alto CA SNFCCASY5MD  722      
650-466 7 San Francisco: Juniper DA CA SNFCCASY5MD  722      
650-472 A Los Altos CA SNFCCASY5MD  722      
650-472 0 Los Altos CA SNFCCASY5MD  722      
650-472 1 Los Altos CA SNFCCASY5MD  722      
650-472 2 Los Altos CA SNFCCASY5MD  722      
650-472 3 Los Altos CA SNFCCASY5MD  722      
650-472 4 Los Altos CA SNFCCASY5MD  722      
650-472 6 Los Altos CA SNFCCASY5MD  722      
650-472 8 Los Altos CA SNFCCASY5MD  722      
650-472 9 Los Altos CA SNFCCASY5MD  722      
650-481 8 Redwood City CA SNFCCASY5MD  722      
650-488 3 San Francisco: Juniper DA CA SNFCCASY5MD  722      
650-488 4 San Francisco: Juniper DA CA SNFCCASY5MD  722      
650-488 5 San Francisco: Juniper DA CA SNFCCASY5MD  722      
650-488 6 San Francisco: Juniper DA CA SNFCCASY5MD  722      
650-488 7 San Francisco: Juniper DA CA SNFCCASY5MD  722      
650-488 8 San Francisco: Juniper DA CA SNFCCASY5MD  722      
650-488 9 San Francisco: Juniper DA CA SNFCCASY5MD  722      
650-489 A San Carlos-Belmont CA SNFCCASY5MD  722      
650-489 0 San Carlos-Belmont CA SNFCCASY5MD  722      
650-489 4 San Carlos-Belmont CA SNFCCASY5MD  722      
650-489 7 San Carlos-Belmont CA SNFCCASY5MD  722      
650-489 9 San Carlos-Belmont CA SNFCCASY5MD  722      
650-490 3 Millbrae CA SNFCCASY5MD  722      
650-490 4 Millbrae CA SNFCCASY5MD  722      
650-491 A South San Francisco CA SNFCCASY5MD  722      
650-491 0 South San Francisco CA SNFCCASY5MD  722      
650-491 3 South San Francisco CA SNFCCASY5MD  722      
650-491 5 South San Francisco CA SNFCCASY5MD  722      
650-491 7 South San Francisco CA SNFCCASY5MD  722      
650-491 8 South San Francisco CA SNFCCASY5MD  722      
650-492 4 Los Altos CA SNFCCASY5MD  722      
650-492 5 Los Altos CA SNFCCASY5MD  722      
650-492 6 Los Altos CA SNFCCASY5MD  722      
650-492 7 Los Altos CA SNFCCASY5MD  722      
650-492 8 Los Altos CA SNFCCASY5MD  722      
650-497 A Palo Alto CA SNFCCASY5MD  722      
650-498 A Palo Alto CA SNFCCASY5MD  722      
650-499 8 Mountain View CA SNFCCASY5MD  722      
650-507 3 Palo Alto CA SNFCCASY5MD  722      
650-509 4 Palo Alto CA SNFCCASY5MD  722      
650-513 2 San Mateo CA SNFCCASY5MD  722      
650-513 8 San Mateo CA SNFCCASY5MD  722      
650-514 A San Mateo CA SNFCCASY5MD  722      
650-514 1 San Mateo CA SNFCCASY5MD  722      
650-514 2 San Mateo CA SNFCCASY5MD  722      
650-514 3 San Mateo CA SNFCCASY5MD  722      
650-515 A South San Francisco CA SNFCCASY5MD  722      
650-515 3 South San Francisco CA SNFCCASY5MD  722      
650-515 4 South San Francisco CA SNFCCASY5MD  722      
650-516 4 Pacifica CA SNFCCASY5MD  722      
650-517 7 San Carlos-Belmont CA SNFCCASY5MD  722      
650-521 5 Palo Alto CA SNFCCASY5MD  722      
650-521 9 Palo Alto CA SNFCCASY5MD  722      
650-529 4 Woodside CA SNFCCASY5MD  722      
650-539 0 San Mateo CA SNFCCASY5MD  722      
650-539 2 San Mateo CA SNFCCASY5MD  722      
650-539 4 San Mateo CA SNFCCASY5MD  722      
650-539 5 San Mateo CA SNFCCASY5MD  722      
650-542 7 Redwood City CA SNFCCASY5MD  722      
650-549 1 Redwood City CA SNFCCASY5MD  722      
650-549 6 Redwood City CA SNFCCASY5MD  722      
650-557 2 Pacifica CA SNFCCASY5MD  722      
650-557 4 Pacifica CA SNFCCASY5MD  722      
650-560 6 Half Moon Bay CA SNFCCASY5MD  722      
650-560 7 Half Moon Bay CA SNFCCASY5MD  722      
650-562 6 Redwood City CA SNFCCASY5MD  722      
650-567 4 Mountain View CA SNFCCASY5MD  722      
650-567 5 Mountain View CA SNFCCASY5MD  722      
650-581 9 San Mateo CA SNFCCASY5MD  722      
650-584 0 Mountain View CA SNFCCASY5MD  722      
650-585 A San Carlos-Belmont CA SNFCCASY5MD  722      
650-585 1 San Carlos-Belmont CA SNFCCASY5MD  722      
650-585 2 San Carlos-Belmont CA SNFCCASY5MD  722      
650-585 4 San Carlos-Belmont CA SNFCCASY5MD  722      
650-585 6 San Carlos-Belmont CA SNFCCASY5MD  722      
650-585 7 San Carlos-Belmont CA SNFCCASY5MD  722      
650-585 9 San Carlos-Belmont CA SNFCCASY5MD  722      
650-587 A Redwood City CA SNFCCASY5MD  722      
650-587 0 Redwood City CA SNFCCASY5MD  722      
650-587 1 Redwood City CA SNFCCASY5MD  722      
650-587 2 Redwood City CA SNFCCASY5MD  722      
650-587 3 Redwood City CA SNFCCASY5MD  722      
650-587 5 Redwood City CA SNFCCASY5MD  722      
650-587 9 Redwood City CA SNFCCASY5MD  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 >>

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.