Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 318 [Rate centres in NPA 318] [Dial plan for NPA 318]

NXX: 328

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-328 A Shreveport LA SHPTLAMA45Z  733J WIRETAP TELECOM, LLC. 486   2026-04-09   
318-328 0 Shreveport LA SHPTLAMA45Z  733J WIRETAP TELECOM, LLC. 486   2026-04-09   
318-328 1 Shreveport LA SHPTLAMAXRY  153F BANDWIDTH.COM CLEC, LLC - LA 486   2026-06-06   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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