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.

Farmington, MI

1 2 3 4 5 6 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
248-306 A FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-306 0 FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-306 1 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2024-06-04   
248-306 2 FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-306 3 FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-306 4 ANARMIMNDS2  3535 ACD TELECOM, INC. - MI 340   2005-07-16   
248-306 5 FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-306 6 FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
248-306 7 LIVNMIUX3MD  5562 METROPCS, INC. 340   2020-06-26   
248-306 8 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-07-07   
248-306 9 SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2008-01-30   
248-324 A FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-324 0 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-324 1 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-324 2 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-324 3 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-324 4 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-324 5 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-324 6 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-324 7 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-324 8 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2018-06-15   
248-324 9 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-381 A   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-381 0 SFLDMIMK9MD  145J TERRA NOVA TELECOM INC. 340   2025-01-03   
248-381 1   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-381 2   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-381 3   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
248-381 4 LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2025-01-04   
248-381 5 FLNTMICD0MD  829J PAETEC ITEL, LLC 340   2004-07-22   
248-381 6 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340   2007-05-02   
248-381 7 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340   2007-05-30   
248-381 8 SFLDMIDICA0  2550 123.NET, LLC 340   2003-01-25   
248-381 9   145J TERRA NOVA TELECOM INC. 340   2025-08-28   
248-426 A FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-427 A FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-442 A FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-471 A FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-473 A FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-473 0 FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-473 1 FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-473 2 FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-473 3   279B CLEAR RATE COMMUNICATIONS, INC. - MI 340   2009-06-04   
248-473 4 FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-473 5 FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-473 6 FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-473 7 FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-473 8 FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-473 9 FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-474 A FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-476 A FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-477 A FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-478 A FRTNMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
248-479 A SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-479 0 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-479 1 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-479 2 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-479 3 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2012-12-29   
248-479 4 SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2022-09-30   
248-479 5 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-479 6 SFLDMITODS2  543C ONVOY, LLCV - MI 340   2012-04-08   
248-479 7 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-479 8 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-479 9 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-482 A SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-482 0 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-482 1 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-482 2 SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2019-03-08   
248-482 3 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2018-06-15   
248-482 4 SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
248-482 5 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2018-06-15   
248-482 6   045L BHN IP ENABLED SERVICES, LLC 340   2018-01-07   
248-482 7 SFLDMITOJMD  961J WOW! INTERNET, CABLE AND PHONE 340   2017-04-15   
248-482 8   045L BHN IP ENABLED SERVICES, LLC 340   2017-07-02   
248-482 9 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2018-06-15   
248-488 A FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-488 0 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-488 1 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-488 2 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-488 3 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-488 4 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-488 5 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-488 6 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-488 7 SFLDMIDICA0  2550 123.NET, LLC 340   2009-08-27   
248-488 8 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-488 9 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-489 A FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-489 0 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-489 1 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-489 2 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-489 3 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-489 4 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-489 5 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-489 6 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2015-09-10   
248-489 7 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-489 8 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-489 9 FMHLMIFHDS0  9323 MICHIGAN BELL TEL CO 340      
248-516 A DTRTMIBASMD  516C AT&T CORP. 340      
248-516 0 SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2015-07-03   
248-516 1 SFLDMIDICA0  2550 123.NET, LLC 340   2015-04-25   
248-516 2 SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2015-07-03   

1 2 3 4 5 6 >>

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.