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: 7421 AT&T LOCAL

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
954-625 A Fort Lauderdale FL FTLDFLOVDS0  46017      
954-625 1 Fort Lauderdale FL FTLDFLOVDS0  46017      
954-626 A Fort Lauderdale FL FTLDFLOVDS0  46017      
954-626 1 Fort Lauderdale FL FTLDFLOVDS0  46017      
954-626 2 Fort Lauderdale FL FTLDFLOVDS0  46017      
954-626 4 Fort Lauderdale FL FTLDFLOVDS0  46017      
954-626 5 Fort Lauderdale FL FTLDFLOVDS0  46017      
954-626 7 Fort Lauderdale FL FTLDFLOVDS0  46017      
954-626 9 Fort Lauderdale FL FTLDFLOVDS0  46017      
954-940 A Fort Lauderdale FL FTLDFLOVDS2  46017      
954-940 9 Fort Lauderdale FL FTLDFLOVDS2  46017      
956-217 8 McAllen TX HRLNTXATJMD  568   2009-04-06   
956-243 A Brownsville TX HRLNTXAT1MD  568      
956-243 9 Brownsville TX HRLNTXAT1MD  568      
956-258 A Pharr TX HRLNTXHGXCX  568      
956-258 9 Pharr TX HRLNTXHGXCX  568   2013-06-27   
956-319 A Laredo TX LARDTXAC1MD  566      
956-319 9 Laredo TX LARDTXAC1MD  566      
956-594 3 Brownsville TX HRLNTXAT1MD  568   2020-12-17   
956-662 5 McAllen TX HRLNTXATJMD  568   2016-05-02   
956-734 A Harlingen TX HRLNTXAT1MD  568      
956-734 9 Harlingen TX HRLNTXAT1MD  568      
956-772 6 Port Isabel TX HRLNTXATJMD  568   2004-09-19   
956-788 A San Benito TX HRLNTXATJMD  568      
956-788 9 San Benito TX HRLNTXATJMD  568      
970-232 A Fort Collins CO DNVRCOZJLMD  656      
970-232 7 Fort Collins CO DNVRCOZJLMD  656      
970-343 A Vail CO DNVRCOMAX0X  656      
970-343 1 Vail CO DNVRCOMAX0X  656      
970-343 6 Vail CO DNVRCOMAX0X  656      
970-361 A Grand Junction CO GDJTCOMAEMD  656      
970-361 9 Grand Junction CO GDJTCOMAEMD  656      
970-366 5 Glenwood Springs CO DNVRCOZJNMD  656   2010-02-08   
970-427 A Fort Morgan CO DNVRCOMAX6Y  656      
970-427 1 Fort Morgan CO DNVRCOMAX6Y  656      
970-439 A Steamboat Springs CO DNVRCOMA33Z  656      
970-439 9 Steamboat Springs CO DNVRCOMAX5Z  656   2006-01-12   
970-440 6 Rifle CO GDJTCOMAEMD  656   2010-04-02   
970-452 A Aspen CO DNVRCOMA26Z  656      
970-452 6 Aspen CO DNVRCOMA26Z  656   2016-11-17   
970-515 A Greeley CO DNVRCOZJMMD  656      
970-515 0 Greeley CO DNVRCOZJMMD  656      
970-776 A Loveland CO DNVRCOZJLMD  656      
970-776 2 Loveland CO DNVRCOZJLMD  656      
970-795 4 Windsor CO DNVRCOZJNMD  656   2007-11-19   
970-968 4 Dillon CO DNVRCOZJNMD  656   2011-12-15   
972-244 A Plano TX IRNGTXXCLMD  552      
972-244 0 Plano TX IRNGTXXCLMD  552      
972-244 1 Plano TX IRNGTXXCLMD  552      
972-244 2 Plano TX IRNGTXXCLMD  552      

<< 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 >>

Last updated: Sun, 28 Feb 2021 19:06:05 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.