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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
248-200 7 Southfield MI 516C AT&T CORP. 340   2006-06-30   
248-221 7 Pontiac MI 516C AT&T CORP. 340   2014-07-31   
248-242 4 Commerce MI 516C AT&T CORP. 340   2006-06-30   
248-260 7 Auburn Heights MI 516C AT&T CORP. 340   2006-06-30   
248-281 3 Southfield MI 516C AT&T CORP. 340   2014-04-14   
248-326 6 Pontiac MI 516C AT&T CORP. 340   2016-07-16   
248-382 7 Holly MI 516C AT&T CORP. 340   2006-06-30   
248-385 1 Birmingham MI 516C AT&T CORP. 340   2014-03-04   
248-432 7 West Bloomfield MI 516C AT&T CORP. 340   2006-06-30   
248-450 7 Southfield MI 516C AT&T CORP. 340   2017-01-13   
248-513 6 Northville MI 516C AT&T CORP. 340   2011-09-12   
248-516 A Farmington MI 516C AT&T CORP. 340      
248-516 5 Farmington MI 516C AT&T CORP. 340   2014-10-23   
248-572 7 Oxford MI 516C AT&T CORP. 340   2006-06-30   
248-573 7 South Lyon MI 516C AT&T CORP. 340   2006-06-30   
248-579 6 Farmington MI 516C AT&T CORP. 340   2010-08-19   
248-599 7 Drayton Plains MI 516C AT&T CORP. 340   2006-06-30   
248-607 9 Royal Oak MI 516C AT&T CORP. 340   2015-01-21   
248-608 4 Rochester MI 516C AT&T CORP. 340   2006-06-30   
248-617 9 South Lyon MI 516C AT&T CORP. 340   2016-09-09   
248-622 4 Pontiac MI 516C AT&T CORP. 340   2010-09-03   
248-677 3 Royal Oak MI 516C AT&T CORP. 340   2006-07-07   
248-677 4 Royal Oak MI 516C AT&T CORP. 340   2011-05-13   
248-707 6 Clarkston MI 516C AT&T CORP. 340   2006-06-30   
248-710 9 Rochester MI 516C AT&T CORP. 340   2016-08-06   
248-719 7 Northville MI 516C AT&T CORP. 340   2006-06-30   
248-729 7 Troy MI 516C AT&T CORP. 340   2006-06-30   
248-732 7 Pontiac MI 516C AT&T CORP. 340   2006-07-07   
248-783 7 Lake Orion MI 516C AT&T CORP. 340   2006-06-30   
248-785 9 West Bloomfield MI 516C AT&T CORP. 340   2016-12-03   
248-792 7 Birmingham MI 516C AT&T CORP. 340   2006-06-30   
248-862 5 West Bloomfield MI 516C AT&T CORP. 340   2011-11-02   
248-893 7 Farmington MI 516C AT&T CORP. 340   2006-06-30   
248-896 2 Walled Lake MI 516C AT&T CORP. 340   2006-06-30   
248-905 3 Southfield MI 516C AT&T CORP. 340   2010-05-05   
248-956 9 Walled Lake MI 516C AT&T CORP. 340   2015-04-02   
313-270 7 Detroit Zone 4 MI 516C AT&T CORP. 340   2008-11-25   
313-307 8 Detroit Zone 4 MI 516C AT&T CORP. 340   2014-04-28   
313-326 6 Detroit Zone 5 MI 516C AT&T CORP. 340   2016-05-14   
313-340 2 Detroit Zone 4 MI 516C AT&T CORP. 340   2013-01-03   
313-365 7 Detroit Zone 3 MI 516C AT&T CORP. 340   2014-10-29   
313-436 5 Detroit Zone 6 MI 516C AT&T CORP. 340   2011-06-29   
313-466 3 Detroit Zone 2 MI 516C AT&T CORP. 340   2014-07-15   
313-472 A Detroit Zone 5 MI 516C AT&T CORP. 340      
313-472 5 Detroit Zone 5 MI 516C AT&T CORP. 340   2013-07-01   
313-473 8 Detroit Zone 2 MI 516C AT&T CORP. 340   2009-01-08   
313-509 2 Detroit Zone 2 MI 516C AT&T CORP. 340   2016-04-21   
313-656 4 Detroit Zone 1 MI 516C AT&T CORP. 340      
313-694 A Detroit Zone 5 MI 516C AT&T CORP. 340      
313-694 3 Detroit Zone 5 MI 516C AT&T CORP. 340   2009-01-27   

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

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