Local Calling Guide
Area code/prefix search
  
        Williamsburg, MI
      
  
    
      | NPA-NXX | BLOCK | Switch | OCN | LATA | LIR | Eff date | Disc date | 
  
  
          
          | 231-247 | A | GDRPMIBL00Z | 991E BANDWIDTH.COM CLEC, LLC - MI | 348 |  |  |  | 
        
          | 231-247 | 0 | GDRPMIBL00Z | 991E BANDWIDTH.COM CLEC, LLC - MI | 348 |  | 2018-11-30 |  | 
        
          | 231-247 | 1 | BRSPMI09DS0 | 933G PEERLESS NETWORK OF MICHIGAN, LLC - MI | 348 |  | 2018-12-28 |  | 
        
          | 231-247 | 2 | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 |  | 2021-06-17 |  | 
        
          | 231-247 | 4 | GDRPMIBL36Z | 624H ONVOY SPECTRUM, LLC | 348 |  | 2021-06-20 |  | 
        
          | 231-247 | 5 | GDRPMIBL36Z | 624H ONVOY SPECTRUM, LLC | 348 |  | 2021-11-22 |  | 
        
          | 231-247 | 6 | GDRPMIBL36Z | 624H ONVOY SPECTRUM, LLC | 348 |  | 2021-11-22 |  | 
        
          | 231-247 | 7 | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 |  | 2021-03-27 |  | 
        
          | 231-247 | 8 | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 |  | 2021-08-22 |  | 
        
          | 231-247 | 9 | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 |  | 2022-12-29 |  | 
        
          | 231-267 | A | WLBGMIWBRSA | 9323 MICHIGAN BELL TEL CO | 348 |  |  |  | 
        
          | 231-267 | 0 | GDRPMIBLXTZ | 3535 ACD TELECOM, INC. - MI | 348 |  | 2005-02-18 |  | 
        
          | 231-267 | 1 |  | 817J INTERACTIVE SERVICES NETWORK, INC. | 348 |  | 2005-09-02 |  | 
        
          | 231-267 | 2 | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 |  | 2021-05-10 |  | 
        
          | 231-267 | 3 |  | 792K CHARTER IP ENABLED SERVICES, LLC | 348 |  | 2007-02-25 |  | 
        
          | 231-267 | 4 | GDRQMIBODS0 | 7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 348 |  | 2009-12-01 |  | 
        
          | 231-267 | 5 | WLBGMIWBRSA | 9323 MICHIGAN BELL TEL CO | 348 |  |  |  | 
        
          | 231-267 | 6 | GDRPMIQLX5Y | 6120 LEVEL 3 COMMUNICATIONS, LLC - MI | 348 |  | 2004-11-14 |  | 
        
          | 231-267 | 7 | GDRPMIBL52Z | 829J PAETEC ITEL, LLC | 348 |  | 2004-02-12 |  | 
        
          | 231-267 | 8 | GDRPMIBL00Z | 991E BANDWIDTH.COM CLEC, LLC - MI | 348 |  | 2011-12-30 |  | 
        
          | 231-267 | 9 | WLBGMIWBRSA | 9323 MICHIGAN BELL TEL CO | 348 |  |  |  | 
        
          | 231-403 | A | GDRPMIBL15Z | 516C AT&T CORP. | 348 |  |  |  | 
        
          | 231-403 | 0 | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 |  | 2013-01-05 |  | 
        
          | 231-403 | 1 | GDRPMIBL00Z | 991E BANDWIDTH.COM CLEC, LLC - MI | 348 |  | 2014-09-01 |  | 
        
          | 231-403 | 2 | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 |  | 2012-06-01 |  | 
        
          | 231-403 | 3 | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 |  | 2013-03-18 |  | 
        
          | 231-403 | 4 | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 |  | 2016-04-11 |  | 
        
          | 231-403 | 5 | GDRPMIBL52Z | 829J PAETEC ITEL, LLC | 348 |  | 2013-11-09 |  | 
        
          | 231-403 | 6 | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 |  | 2016-04-11 |  | 
        
          | 231-403 | 7 | GDRPMIBL15Z | 516C AT&T CORP. | 348 |  | 2011-10-14 |  | 
        
          | 231-403 | 8 | TRCYMIMNWMD | 508J CENTURYLINK COMMUNICATIONS, LLC | 348 |  | 2017-10-05 |  | 
        
          | 231-403 | 9 | BRSPMI09DS0 | 933G PEERLESS NETWORK OF MICHIGAN, LLC - MI | 348 |  | 2015-12-31 |  | 
        
          | 231-451 | A | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 |  |  |  | 
        
          | 231-451 | 2 | GDRPMIBL04Z | 543C ONVOY, LLCV - MI | 348 |  | 2023-09-16 |  | 
  
  
   Last updated: Thu, 16 Oct 2025 03:04:18 UTC
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