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
248-243 2 Auburn Heights MI 473D CMC TELECOM, INC. - MI 340   2007-08-06   
248-257 6 Drayton Plains MI 473D CMC TELECOM, INC. - MI 340   2008-01-03   
248-264 1 South Lyon MI 473D CMC TELECOM, INC. - MI 340   2006-03-09   
248-287 9 Lake Orion MI 473D CMC TELECOM, INC. - MI 340   2008-01-03   
248-306 1 Farmington MI 473D CMC TELECOM, INC. - MI 340   2008-01-03   
248-369 2 Holly MI 473D CMC TELECOM, INC. - MI 340   2008-01-03   
248-394 4 Clarkston MI 473D CMC TELECOM, INC. - MI 340   2008-01-14   
248-412 8 Northville MI 473D CMC TELECOM, INC. - MI 340   2005-10-16   
248-429 6 Oxford MI 473D CMC TELECOM, INC. - MI 340   2006-03-09   
248-494 9 Pontiac MI 473D CMC TELECOM, INC. - MI 340   2008-01-05   
248-566 7 Birmingham MI 473D CMC TELECOM, INC. - MI 340   2007-12-30   
248-581 7 Royal Oak MI 473D CMC TELECOM, INC. - MI 340   2005-10-16   
248-659 9 Rochester MI 473D CMC TELECOM, INC. - MI 340   2008-01-05   
248-687 2 Troy MI 473D CMC TELECOM, INC. - MI 340   2006-01-14   
248-698 5 Commerce MI 473D CMC TELECOM, INC. - MI 340   2008-01-03   
248-793 4 Ortonville MI 473D CMC TELECOM, INC. - MI 340   2008-01-05   
248-862 3 West Bloomfield MI 473D CMC TELECOM, INC. - MI 340   2008-01-05   
248-863 5 Walled Lake MI 473D CMC TELECOM, INC. - MI 340   2005-11-08   
248-996 A Southfield MI 473D CMC TELECOM, INC. - MI 340      
248-996 1 Southfield MI 473D CMC TELECOM, INC. - MI 340   2005-11-13   
313-203 8 Detroit Zone 6 MI 473D CMC TELECOM, INC. - MI 340   2006-03-09   
313-270 6 Detroit Zone 4 MI 473D CMC TELECOM, INC. - MI 340   2008-01-13   
313-281 3 Detroit Zone 3 MI 473D CMC TELECOM, INC. - MI 340   2008-01-13   
313-354 7 Detroit Zone 5 MI 473D CMC TELECOM, INC. - MI 340   2008-01-13   
313-420 1 Detroit Zone 1 MI 473D CMC TELECOM, INC. - MI 340   2006-03-09   
313-458 0 Detroit Zone 2 MI 473D CMC TELECOM, INC. - MI 340   2008-01-05   
517-376 7 Howell MI 473D CMC TELECOM, INC. - MI 340   2006-01-14   
586-232 2 Washington MI 473D CMC TELECOM, INC. - MI 340   2008-01-07   
586-244 1 New Haven MI 473D CMC TELECOM, INC. - MI 340   2008-01-07   
586-248 0 Richmond MI 473D CMC TELECOM, INC. - MI 340   2008-01-07   
586-329 7 Mount Clemens MI 473D CMC TELECOM, INC. - MI 340   2008-01-07   
586-330 6 New Baltimore MI 473D CMC TELECOM, INC. - MI 340   2008-01-07   
586-331 8 Romeo MI 473D CMC TELECOM, INC. - MI 340   2008-01-07   
586-360 2 Roseville MI 473D CMC TELECOM, INC. - MI 340   2006-01-14   
586-393 2 Center Line MI 473D CMC TELECOM, INC. - MI 340   2008-01-07   
586-473 4 Armada MI 473D CMC TELECOM, INC. - MI 340   2008-01-07   
586-553 8 Warren MI 473D CMC TELECOM, INC. - MI 340   2006-03-09   
586-580 6 Utica MI 473D CMC TELECOM, INC. - MI 340   2008-01-07   
734-212 4 Manchester MI 473D CMC TELECOM, INC. - MI 340   2008-01-11   
734-215 4 Milan MI 473D CMC TELECOM, INC. - MI 340   2008-01-11   
734-218 7 Ypsilanti MI 473D CMC TELECOM, INC. - MI 340   2008-01-13   
734-220 0 Petersburg MI 473D CMC TELECOM, INC. - MI 340   2008-01-13   
734-224 1 Temperance MI 473D CMC TELECOM, INC. - MI 340   2008-01-13   
734-225 3 Wyandotte MI 473D CMC TELECOM, INC. - MI 340   2008-01-13   
734-236 2 Rockwood MI 473D CMC TELECOM, INC. - MI 340   2008-01-13   
734-244 9 Monroe MI 473D CMC TELECOM, INC. - MI 340   2008-01-11   
734-252 5 Belleville MI 473D CMC TELECOM, INC. - MI 340   2008-01-11   
734-253 0 Dexter MI 473D CMC TELECOM, INC. - MI 340   2008-01-11   
734-256 2 Willis MI 473D CMC TELECOM, INC. - MI 340   2008-01-13   
734-259 1 Plymouth MI 473D CMC TELECOM, INC. - MI 340   2008-01-13   

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Last updated: Wed, 07 Feb 2024 04:12:25 UTC

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