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.

Switch: WAYNMIMNXUX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
248-250 A Troy MI 318J COMCAST IP PHONE, LLC 340      
248-268 A Royal Oak MI 318J COMCAST IP PHONE, LLC 340      
248-289 A Auburn Heights MI 318J COMCAST IP PHONE, LLC 340      
248-301 A Commerce MI 318J COMCAST IP PHONE, LLC 340      
248-450 A Southfield MI 318J COMCAST IP PHONE, LLC 340      
248-472 A Milford-White Lake MI 318J COMCAST IP PHONE, LLC 340      
248-480 A Birmingham MI 318J COMCAST IP PHONE, LLC 340      
248-481 A Pontiac MI 318J COMCAST IP PHONE, LLC 340      
248-617 A South Lyon MI 318J COMCAST IP PHONE, LLC 340      
248-757 A West Bloomfield MI 318J COMCAST IP PHONE, LLC 340      
248-792 A Birmingham MI 318J COMCAST IP PHONE, LLC 340      
248-809 A Southfield MI 318J COMCAST IP PHONE, LLC 340      
248-817 A Troy MI 318J COMCAST IP PHONE, LLC 340      
248-924 A Northville MI 318J COMCAST IP PHONE, LLC 340      
248-965 A Royal Oak MI 318J COMCAST IP PHONE, LLC 340      
313-397 A Detroit Zone 4 MI 318J COMCAST IP PHONE, LLC 340      
313-406 A Detroit Zone 6 MI 318J COMCAST IP PHONE, LLC 340      
313-469 A Detroit Zone 2 MI 318J COMCAST IP PHONE, LLC 340      
313-635 A Detroit Zone 4 MI 318J COMCAST IP PHONE, LLC 340      
313-638 A Detroit Zone 1 MI 318J COMCAST IP PHONE, LLC 340      
313-646 A Detroit Zone 4 MI 318J COMCAST IP PHONE, LLC 340      
313-693 A Detroit Zone 5 MI 318J COMCAST IP PHONE, LLC 340      
313-784 A Detroit Zone 1 MI 318J COMCAST IP PHONE, LLC 340      
517-376 A Howell MI 318J COMCAST IP PHONE, LLC 340      
517-577 A Adrian MI 318J COMCAST IP PHONE, LLC 340      
586-200 A Roseville MI 318J COMCAST IP PHONE, LLC 340      
586-204 A Roseville MI 318J COMCAST IP PHONE, LLC 340      
586-213 A Mount Clemens MI 318J COMCAST IP PHONE, LLC 340      
586-231 A Mount Clemens MI 318J COMCAST IP PHONE, LLC 340      
586-238 A Roseville MI 318J COMCAST IP PHONE, LLC 340      
586-272 A Warren MI 318J COMCAST IP PHONE, LLC 340      
586-275 A Warren MI 318J COMCAST IP PHONE, LLC 340      
586-488 A Utica MI 318J COMCAST IP PHONE, LLC 340      
586-785 A Romeo MI 318J COMCAST IP PHONE, LLC 340      
586-883 A Warren MI 318J COMCAST IP PHONE, LLC 340      
734-253 A Dexter MI 318J COMCAST IP PHONE, LLC 340      
734-270 A Willis MI 318J COMCAST IP PHONE, LLC 340      
734-316 A Saline MI 318J COMCAST IP PHONE, LLC 340      
734-318 A Wyandotte MI 318J COMCAST IP PHONE, LLC 340      
734-325 A Belleville MI 318J COMCAST IP PHONE, LLC 340      
734-331 A Wayne MI 318J COMCAST IP PHONE, LLC 340      
734-338 A Livonia MI 318J COMCAST IP PHONE, LLC 340      
734-340 A Ypsilanti MI 318J COMCAST IP PHONE, LLC 340      
734-359 A Plymouth MI 318J COMCAST IP PHONE, LLC 340      
734-369 A Ann Arbor MI 318J COMCAST IP PHONE, LLC 340      
734-562 A Chelsea MI 318J COMCAST IP PHONE, LLC 340      
734-580 A Dexter MI 318J COMCAST IP PHONE, LLC 340      
734-667 A Plymouth MI 318J COMCAST IP PHONE, LLC 340      
734-725 A Wayne MI 318J COMCAST IP PHONE, LLC 340      
734-882 A Ann Arbor MI 318J COMCAST IP PHONE, LLC 340      
734-895 A Wayne MI 318J COMCAST IP PHONE, LLC 340      
734-929 A Ann Arbor MI 318J COMCAST IP PHONE, LLC 340      
734-961 A Ypsilanti MI 318J COMCAST IP PHONE, LLC 340      
734-977 A Saline MI 318J COMCAST IP PHONE, LLC 340      
734-992 A Romulus MI 318J COMCAST IP PHONE, LLC 340      
810-281 A Lexington MI 318J COMCAST IP PHONE, LLC 340      
810-337 A Flint MI 318J COMCAST IP PHONE, LLC 340      
810-350 A Montrose MI 318J COMCAST IP PHONE, LLC 340      
810-373 A Fenton MI 318J COMCAST IP PHONE, LLC 340      
810-588 A Brighton MI 318J COMCAST IP PHONE, LLC 340      
810-775 A Brighton MI 318J COMCAST IP PHONE, LLC 340      
947-886 A Pontiac MI 318J COMCAST IP PHONE, LLC 340      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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