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: 414 [Rate centres in NPA 414] [Dial plan for NPA 414]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
414-509 8 Milwaukee Zone 1 WI MILWWI12XAY  793K TWC IP ENABLED SERVICES, LLC 356   2015-12-10   
414-509 9 Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2015-10-11   
414-510 A Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
414-512 A Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-11-23   
414-512 0 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-11-23   
414-512 1 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-11-23   
414-512 2 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-11-23   
414-512 3 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-11-23   
414-512 4 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-11-23   
414-512 5 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-11-23   
414-512 6 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-11-23   
414-512 7 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-11-23   
414-512 8 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-11-23   
414-512 9 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-11-23   
414-513 A Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-12-25   
414-513 0 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-12-25   
414-513 1 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-12-25   
414-513 2 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-12-25   
414-513 3 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-12-25   
414-513 4 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-12-25   
414-513 5 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-12-25   
414-513 6 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-12-25   
414-513 7 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-12-25   
414-513 8 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-12-25   
414-513 9 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-12-25   
414-514 A Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
414-514 0 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2009-02-04   
414-514 1 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2009-02-04   
414-514 2 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2009-02-04   
414-514 3 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2009-02-04   
414-514 4 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2009-02-04   
414-514 5 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2009-02-04   
414-514 6 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2009-02-04   
414-514 7 Milwaukee Zone 1 WI PEWTWICI7MD  5562 METROPCS, INC. 356   2015-01-15   
414-514 8 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2009-02-04   
414-514 9 Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2009-02-04   
414-515 A Milwaukee Zone 1 WI MILWWI12XWX  9748 AMERICAN MESSAGING SERVICES, LLC 356      
414-516 A Milwaukee Zone 1 WI MILWWI12X3Y  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356      
414-517 A Milwaukee Zone 1 WI PEWTWICI7MD  5562 METROPCS, INC. 356      
414-517 0 Milwaukee Zone 1 WI PEWTWICI7MD  5562 METROPCS, INC. 356   2007-03-16   
414-517 1 Milwaukee Zone 1 WI PEWTWICI7MD  5562 METROPCS, INC. 356      
414-517 2 Milwaukee Zone 1 WI PEWTWICI7MD  5562 METROPCS, INC. 356   2007-03-16   
414-517 3 Milwaukee Zone 1 WI PEWTWICI7MD  5562 METROPCS, INC. 356      
414-517 4 Milwaukee Zone 1 WI PEWTWICI7MD  5562 METROPCS, INC. 356      
414-517 5 Milwaukee Zone 1 WI PEWTWICI7MD  5562 METROPCS, INC. 356      
414-517 6 Milwaukee Zone 1 WI PEWTWICI7MD  5562 METROPCS, INC. 356      
414-517 7 Milwaukee Zone 1 WI PEWTWICI7MD  5562 METROPCS, INC. 356      
414-517 8 Milwaukee Zone 1 WI PEWTWICI7MD  5562 METROPCS, INC. 356      
414-517 9 Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-518 A Milwaukee Zone 1 WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2026-01-19   

<< 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 >>

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.