Local Calling Guide
Area code/prefix search
  
        Westport, CT
    << 1 2 
  
  
    
      | NPA-NXX | 
      BLOCK | 
        Switch | 
        OCN | 
        LATA | 
        LIR | 
        Eff date | 
      Disc date | 
    
  
  
          
          | 203-682
           | 4 | 
      	        | 
		      829J PAETEC ITEL, LLC | 
		      920 | 
		        | 
	            | 
           
       | 
      
        
          | 203-682
           | 5 | 
      	      MDTWCTNIBMD  | 
		      4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 
		      920 | 
		        | 
	          2015-08-14  | 
           
       | 
      
        
          | 203-682
           | 6 | 
      	        | 
		      829J PAETEC ITEL, LLC | 
		      920 | 
		        | 
	            | 
           
       | 
      
        
          | 203-682
           | 7 | 
      	        | 
		      829J PAETEC ITEL, LLC | 
		      920 | 
		        | 
	            | 
           
       | 
      
        
          | 203-682
           | 8 | 
      	        | 
		      829J PAETEC ITEL, LLC | 
		      920 | 
		        | 
	            | 
           
       | 
      
        
          | 203-682
           | 9 | 
      	        | 
		      829J PAETEC ITEL, LLC | 
		      920 | 
		        | 
	            | 
           
       | 
      
        
          | 475-363
           | A | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2024-04-22  | 
           
       | 
      
        
          | 475-363
           | 0 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2024-04-22  | 
           
       | 
      
        
          | 475-363
           | 1 | 
      	        | 
		      4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 
		      920 | 
		        | 
	          2025-02-19  | 
           
       | 
      
        
          | 475-363
           | 2 | 
      	      HRFRCTCR3MD  | 
		      318J COMCAST IP PHONE, LLC | 
		      920 | 
		        | 
	          2024-11-01  | 
           
       | 
      
        
          | 475-363
           | 4 | 
      	        | 
		      199F BANDWIDTH.COM CLEC, LLC - CT | 
		      920 | 
		        | 
	          2025-05-12  | 
           
       | 
      
        
          | 475-363
           | 5 | 
      	        | 
		      6624 OMNIPOINT COMMUNICATIONS, INC. - CT | 
		      920 | 
		        | 
	          2025-05-30  | 
           
       | 
      
        
          | 475-363
           | 8 | 
      	        | 
		      4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 
		      920 | 
		        | 
	          2025-02-19  | 
           
       | 
      
        
          | 475-363
           | 9 | 
      	      HRFRCT0380Z  | 
		      539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT | 
		      920 | 
		        | 
	          2024-09-21  | 
           
       | 
      
        
          | 475-471
           | A | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	            | 
           
       | 
      
        
          | 475-471
           | 0 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2020-07-06  | 
           
       | 
      
        
          | 475-471
           | 1 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2020-07-06  | 
           
       | 
      
        
          | 475-471
           | 2 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2019-09-13  | 
           
       | 
      
        
          | 475-471
           | 3 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2019-09-13  | 
           
       | 
      
        
          | 475-471
           | 4 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2020-11-22  | 
           
       | 
      
        
          | 475-471
           | 5 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2020-11-22  | 
           
       | 
      
        
          | 475-471
           | 6 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2020-11-22  | 
           
       | 
      
        
          | 475-471
           | 7 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2020-11-22  | 
           
       | 
      
        
          | 475-471
           | 8 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2021-03-04  | 
           
       | 
      
        
          | 475-471
           | 9 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2021-03-04  | 
           
       | 
      
        
          | 475-666
           | A | 
      	      HRFRCT0380Z  | 
		      539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT | 
		      920 | 
		        | 
	            | 
           
       | 
      
        
          | 475-666
           | 0 | 
      	      HRFRCT0379Z  | 
		      199F BANDWIDTH.COM CLEC, LLC - CT | 
		      920 | 
		        | 
	          2016-07-10  | 
           
       | 
      
        
          | 475-666
           | 1 | 
      	      HRFRCT03HMD  | 
		      073H TELNYX LLC | 
		      920 | 
		        | 
	          2017-06-05  | 
           
       | 
      
        
          | 475-666
           | 2 | 
      	      HRFRCT0380Z  | 
		      539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT | 
		      920 | 
		        | 
	          2018-10-21  | 
           
       | 
      
        
          | 475-666
           | 3 | 
      	      NWHNCT02XJX  | 
		      624H ONVOY SPECTRUM, LLC | 
		      920 | 
		        | 
	          2021-03-12  | 
           
       | 
      
        
          | 475-666
           | 4 | 
      	      HRFRCT0383Z  | 
		      7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT | 
		      920 | 
		        | 
	          2018-12-07  | 
           
       | 
      
        
          | 475-666
           | 5 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2018-10-15  | 
           
       | 
      
        
          | 475-666
           | 6 | 
      	      HRFRCT0380Z  | 
		      539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT | 
		      920 | 
		        | 
	          2016-06-12  | 
           
       | 
      
        
          | 475-666
           | 7 | 
      	      MDTWCTNIBMD  | 
		      4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 
		      920 | 
		        | 
	          2016-10-04  | 
           
       | 
      
        
          | 475-666
           | 8 | 
      	      MDTWCTNIBMD  | 
		      4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 
		      920 | 
		        | 
	          2016-09-28  | 
           
       | 
      
        
          | 475-666
           | 9 | 
      	      MDTWCTNIBMD  | 
		      4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 
		      920 | 
		        | 
	          2016-08-26  | 
           
       | 
      
        
          | 475-887
           | A | 
      	      HRFRCT03XSX  | 
		      516J TON80 COMMUNICATIONS, LLC | 
		      920 | 
		        | 
	            | 
           
       | 
      
        
          | 475-887
           | 0 | 
      	        | 
		      515J IP HORIZON LLC | 
		      920 | 
		        | 
	          2022-07-23  | 
           
       | 
      
        
          | 475-887
           | 1 | 
      	      HRFRCT0380Z  | 
		      539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT | 
		      920 | 
		        | 
	          2023-09-08  | 
           
       | 
      
        
          | 475-887
           | 2 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2023-08-18  | 
           
       | 
      
        
          | 475-887
           | 3 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2023-08-18  | 
           
       | 
      
        
          | 475-887
           | 4 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2023-08-18  | 
           
       | 
      
        
          | 475-887
           | 5 | 
      	      HRFRCT03XSX  | 
		      516J TON80 COMMUNICATIONS, LLC | 
		      920 | 
		        | 
	          2022-03-16  | 
           
       | 
      
        
          | 475-887
           | 6 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2023-08-18  | 
           
       | 
      
        
          | 475-887
           | 7 | 
      	      NWHNCT02XJX  | 
		      624H ONVOY SPECTRUM, LLC | 
		      920 | 
		        | 
	          2022-03-17  | 
           
       | 
      
        
          | 475-887
           | 8 | 
      	      NWHNCT02XJX  | 
		      624H ONVOY SPECTRUM, LLC | 
		      920 | 
		        | 
	          2022-03-17  | 
           
       | 
      
        
          | 475-887
           | 9 | 
      	      HRFRCTBCDS1  | 
		      639C ONVOY, LLC - CT | 
		      920 | 
		        | 
	          2023-08-18  | 
           
       | 
      
  
  
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  Last updated: Thu, 16 Oct 2025 03:04:18 UTC
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