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.

Switch: MMPHTNCTX6X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
901-200 A Memphis TN 6630 SPOK, INC. 468      
901-223 A Memphis TN 6630 SPOK, INC. 468      
901-391 A Memphis TN 6630 SPOK, INC. 468      
901-392 A Memphis TN 6630 SPOK, INC. 468      
901-442 A Memphis TN 6630 SPOK, INC. 468      
901-447 A Memphis TN 6630 SPOK, INC. 468      
901-477 A Memphis TN 6630 SPOK, INC. 468      
901-532 A Memphis TN 6630 SPOK, INC. 468      
901-534 A Memphis TN 6630 SPOK, INC. 468      
901-637 A Memphis TN 6630 SPOK, INC. 468      
901-638 A Memphis TN 6630 SPOK, INC. 468      
901-639 A Memphis TN 6630 SPOK, INC. 468      
901-703 A Memphis TN 6630 SPOK, INC. 468      
901-769 A Memphis TN 6630 SPOK, INC. 468      
901-777 A Memphis TN 6630 SPOK, INC. 468      
901-790 A Memphis TN 6630 SPOK, INC. 468      

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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