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: 436

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-436 A Sand Creek MI SNCKMIXIDS0  0725 SAND CREEK TEL. CO. 340      
517-436 0 Sand Creek MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2014-01-03   
517-436 1 Sand Creek MI ADRNMIXGVMD  3459 TC3 TELECOM, INC. - MI 340   2010-11-12   
517-436 2 Sand Creek MI PTBGMIAKDS0  558A DEERFIELD FARMERS' TELEPHONE COMPANY - MI 340   2011-09-09   
517-436 3 Sand Creek MI SNCKMIXIDS0  0725 SAND CREEK TEL. CO. 340      
517-436 4 Sand Creek MI SFLDMIMKBMD  516J TON80 COMMUNICATIONS, LLC 340   2022-03-17   
517-436 6 Sand Creek MI SNCKMIXIDS0  0725 SAND CREEK TEL. CO. 340      
517-436 8 Sand Creek MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2018-10-30   
517-436 9 Sand Creek MI SNCKMIXIDS0  0725 SAND CREEK TEL. CO. 340      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.