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
414-973 A Milwaukee Zone 4 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-973 0 Milwaukee Zone 4 WI MILWWI12XAY  793K TWC IP ENABLED SERVICES, LLC 356   2015-09-28   
414-973 1 Milwaukee Zone 4 WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2011-06-16   
414-973 2 Milwaukee Zone 4 WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2012-02-25   
414-973 3 Milwaukee Zone 4 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-973 4 Milwaukee Zone 4 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-973 5 Milwaukee Zone 4 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-973 6 Milwaukee Zone 4 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-973 7 Milwaukee Zone 4 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-973 8 Milwaukee Zone 4 WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2011-06-03   
414-973 9 Milwaukee Zone 4 WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-03-20   
414-975 A Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-975 0 Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-975 1 Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-975 2 Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-975 3 Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-975 4 Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-975 5 Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-975 6 Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-975 7 Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-975 8 Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-975 9 Milwaukee Zone 1 WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-977 A Milwaukee Zone 1 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-978 A Milwaukee Zone 1 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-978 0 Milwaukee Zone 1 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-978 1 Milwaukee Zone 1 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-978 2 Milwaukee Zone 1 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-978 3 Milwaukee Zone 1 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-978 4 Milwaukee Zone 1 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-978 5 Milwaukee Zone 1 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-978 6 Milwaukee Zone 1 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-978 7 Milwaukee Zone 1 WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-06-19   
414-978 8 Milwaukee Zone 1 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-978 9 Milwaukee Zone 1 WI WALLWIFIDS0  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
414-979 A Milwaukee Zone 4 WI MILWWI38RS1  9327 WISCONSIN BELL INC 356      
414-979 0 Milwaukee Zone 4 WI MILWWIHEWMD  516C AT&T CORP. 356   2014-12-04   
414-979 1 Milwaukee Zone 4 WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-03-12   
414-979 2 Milwaukee Zone 4 WI MILWWI38RS1  9327 WISCONSIN BELL INC 356      
414-979 3 Milwaukee Zone 4 WI MILWWI38RS1  9327 WISCONSIN BELL INC 356      
414-979 4 Milwaukee Zone 4 WI MILWWI38RS1  9327 WISCONSIN BELL INC 356      
414-979 6 Milwaukee Zone 4 WI MILWWIAUDS2  227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 356   2026-05-28   
414-979 7 Milwaukee Zone 4 WI BRFDWIJZDS0  7322 LEVEL 3 TELECOM OF WISCONSIN, LP - WI 356   2010-06-04   
414-979 8 Milwaukee Zone 4 WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2014-06-07   
414-979 9 Milwaukee Zone 4 WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-03-12   
414-981 A Milwaukee Zone 1 WI MILWWI13X3X  6630 SPOK, INC. 356      
414-982 A Milwaukee Zone 1 WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
414-982 0 Milwaukee Zone 1 WI PEWTWICI7MD  5562 METROPCS, INC. 356   2011-01-14   
414-982 1 Milwaukee Zone 1 WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2013-09-21   
414-982 2 Milwaukee Zone 1 WI MILWWI12XBY  520K TDS METROCOM, LLC 356   2010-11-27   
414-982 3 Milwaukee Zone 1 WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2010-12-18   

<< 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: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.