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: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

NXX: 334

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-334 A Lansing MI LNNGMIMNDS0  9323 MICHIGAN BELL TEL CO 346      
517-334 0 Lansing MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346      
517-334 1 Lansing MI LNNGMIMNDS0  9323 MICHIGAN BELL TEL CO 346      
517-334 2 Lansing MI LNNGMIMNDS0  9323 MICHIGAN BELL TEL CO 346      
517-334 3 Lansing MI LNNGMIMNDS0  9323 MICHIGAN BELL TEL CO 346      
517-334 4 Lansing MI LNNGMIMNPMD  7421 AT&T - LOCAL 346      
517-334 5 Lansing MI LNNGMIMNDS0  9323 MICHIGAN BELL TEL CO 346      
517-334 6 Lansing MI LNNGMIMNDS0  9323 MICHIGAN BELL TEL CO 346      
517-334 7 Lansing MI LNNGMIMNDS0  9323 MICHIGAN BELL TEL CO 346      
517-334 8 Lansing MI LNNGMIMNDS0  9323 MICHIGAN BELL TEL CO 346      
517-334 9 Lansing MI LNNGMIMNDS0  9323 MICHIGAN BELL TEL CO 346      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.