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.

NPA: 810 [Rate centres in NPA 810] [Dial plan for NPA 810]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-420 4 Marine City MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-420 5 Marine City MI   829J PAETEC ITEL, LLC 340   2005-08-13   
810-420 7 Marine City MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2009-05-01   
810-420 8 Marine City MI   543C ONVOY, LLCV - MI 340   2016-03-28   
810-420 9 Marine City MI   2550 123.NET, LLC 340   2003-03-09   
810-422 A Flint MI FLNTMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
810-422 0 Flint MI   9323 MICHIGAN BELL TEL CO 340      
810-422 1 Flint MI   9323 MICHIGAN BELL TEL CO 340      
810-422 2 Flint MI   9323 MICHIGAN BELL TEL CO 340      
810-422 3 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2004-06-05   
810-422 4 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2004-09-02   
810-422 5 Flint MI   318J COMCAST IP PHONE, LLC 340   2007-09-04   
810-422 6 Flint MI   9323 MICHIGAN BELL TEL CO 340      
810-422 7 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2004-07-17   
810-422 8 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2004-07-17   
810-422 9 Flint MI   318J COMCAST IP PHONE, LLC 340   2007-09-04   
810-423 A Flint MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-423 0 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-423 1 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-423 2 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-423 3 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-423 4 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-423 5 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-423 6 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-423 7 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-423 8 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-423 9 Flint MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
810-424 A Flint MI FLNTMIMNDS1  9323 MICHIGAN BELL TEL CO 340      
810-425 A Port Sanilac MI SFLDMIBVDS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
810-425 0 Port Sanilac MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
810-425 1 Port Sanilac MI   543C ONVOY, LLCV - MI 340   2016-02-24   
810-425 2 Port Sanilac MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2021-11-21   
810-425 3 Port Sanilac MI   516C AT&T CORP. 340   2011-05-31   
810-425 4 Port Sanilac MI   145J TERRA NOVA TELECOM INC. 340   2023-08-06   
810-425 5 Port Sanilac MI   543C ONVOY, LLCV - MI 340   2013-01-31   
810-425 7 Port Sanilac MI   543C ONVOY, LLCV - MI 340   2016-04-01   
810-425 8 Port Sanilac MI   543C ONVOY, LLCV - MI 340   2016-04-01   
810-425 9 Port Sanilac MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2016-12-11   
810-426 A Marine City MI SFLDMIDICA0  2550 123.NET, LLC 340      
810-426 0 Marine City MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2014-05-03   
810-426 1 Marine City MI   2550 123.NET, LLC 340      
810-426 2 Marine City MI   2550 123.NET, LLC 340      
810-426 3 Marine City MI   2550 123.NET, LLC 340      
810-426 4 Marine City MI   2550 123.NET, LLC 340      
810-426 5 Marine City MI   829J PAETEC ITEL, LLC 340   2009-10-27   
810-426 6 Marine City MI   2550 123.NET, LLC 340      
810-426 7 Marine City MI   2550 123.NET, LLC 340      
810-426 8 Marine City MI   2550 123.NET, LLC 340      
810-426 9 Marine City MI   2550 123.NET, LLC 340      
810-428 A Grand Blanc MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.