Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

NXX: 833

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-833 A Mason MI LNNGMIVE2MD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346      
517-833 0 Mason MI LNNGMIMNX4Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2004-12-31   
517-833 1 Mason MI LNNGMIDCHMD  4632 TELNET WORLDWIDE, INC. 346   2005-09-03   
517-833 2 Mason MI LNNGMIXIDS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 346   2005-09-15   
517-833 3 Mason MI LNNGMIXIDS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 346   2005-09-26   
517-833 4 Mason MI LNNGMIVE2MD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2004-12-20   
517-833 5 Mason MI LNNGMIXIDS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 346   2005-05-18   
517-833 6 Mason MI LNNGMIXIDS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 346   2005-05-18   
517-833 7 Mason MI LNNGMIXIDS0  7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 346   2005-04-02   
517-833 8 Mason MI LNNGMIMN16Z  829J PAETEC ITEL, LLC 346   2005-04-11   
517-833 9 Mason MI LNNGMIVE2MD  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2005-12-29   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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