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: 256 [Rate centres in NPA 256] [Dial plan for NPA 256]

NXX: 513

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-513 A Huntsville AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477      
256-513 0 Huntsville AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477      
256-513 1 Huntsville AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477      
256-513 2 Huntsville AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477      
256-513 3 Huntsville AL HNVIAL03X9Y  5562 METROPCS, INC. 477      
256-513 4 Huntsville AL HNVIALUNX0X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 477      
256-513 5 Huntsville AL HNVIALUNX0X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 477      
256-513 6 Huntsville AL HNVIALUNX0X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 477      
256-513 7 Huntsville AL HNVIALUNX0X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 477      
256-513 8 Huntsville AL HNVIALUNXOZ  961J WOW! INTERNET, CABLE AND PHONE 477      
256-513 9 Huntsville AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.