Local Calling Guide
Area code/prefix search
  
      NPA: 857
     [Rate centres in NPA 857]
     [Dial plan for NPA 857]
    
        Block: A
    << 1 2 3 4 
  
  
    
      | NPA-NXX | 
      BLOCK | 
        Rate Centre | 
      Region | 
        Switch | 
        OCN | 
        LATA | 
        LIR | 
        Eff date | 
      Disc date | 
    
  
  
          
          | 857-746
           | A | 
      	    Brookline | 
	    MA | 
      	      SOVLMAABCMD  | 
		      516J TON80 COMMUNICATIONS, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-753
           | A | 
      	    Boston | 
	    MA | 
      	      CATNMAAKAMD  | 
		      6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-754
           | A | 
      	    Quincy | 
	    MA | 
      	      BSTPMALLDS3  | 
		      892D ONVOY, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-755
           | A | 
      	    Quincy | 
	    MA | 
      	      SOVLMAABAMD  | 
		      965H FRACTEL, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-756
           | A | 
      	    Cambridge | 
	    MA | 
      	      CMBRMABEX9Y  | 
		      0334 METROPOLITAN TELECOMMUNICATIONS OF MASS DBA METTEL | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-757
           | A | 
      	    Cambridge | 
	    MA | 
      	        | 
		      507J THE VOICE APPLICATION NETWORK, LLC | 
		      128 | 
		        | 
	          2025-04-21  | 
           
       | 
      
        
          | 857-758
           | A | 
      	    Boston | 
	    MA | 
      	      SOVLMAABAMD  | 
		      965H FRACTEL, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-760
           | A | 
      	    Watertown | 
	    MA | 
      	      BSTNMABLOMD  | 
		      990E BANDWIDTH.COM CLEC, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-762
           | A | 
      	    Boston | 
	    MA | 
      	      NRTNMAAACM4  | 
		      5562 METROPCS, INC. | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-763
           | A | 
      	    Boston | 
	    MA | 
      	      NRTNMAAACM4  | 
		      6889 OMNIPOINT MIAMI E LICENSE, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-766
           | A | 
      	    South Boston | 
	    MA | 
      	      SOVLMAABAMD  | 
		      965H FRACTEL, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-767
           | A | 
      	    Boston | 
	    MA | 
      	      SOVLMAABCMD  | 
		      516J TON80 COMMUNICATIONS, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-770
           | A | 
      	    Boston | 
	    MA | 
      	      CMBRMABEEMD  | 
		      116E INTRADO COMMUNICATIONS, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-772
           | A | 
      	    Boston | 
	    MA | 
      	      CATNMAAKAMD  | 
		      6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-773
           | A | 
      	    Jamaica Plain | 
	    MA | 
      	      NRTNMAAACM4  | 
		      5562 METROPCS, INC. | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-776
           | A | 
      	    Chelsea | 
	    MA | 
      	      CMBRMAORDSG  | 
		      4018 LEVEL 3 COMMUNICATIONS, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-777
           | A | 
      	    Cambridge | 
	    MA | 
      	      SOVLMAABDS2  | 
		      268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-788
           | A | 
      	    Boston | 
	    MA | 
      	      CMBRMABEXFX  | 
		      622J SKYE TELECOM LLC DBA SKYETEL | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-799
           | A | 
      	    Cambridge | 
	    MA | 
      	      CMBRMABEQMD  | 
		      321J HD CARRIER LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-800
           | A | 
      	    Boston | 
	    MA | 
      	      BSTPMALLDS3  | 
		      892D ONVOY, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-810
           | A | 
      	    Boston | 
	    MA | 
      	      BSTPMALLDS3  | 
		      892D ONVOY, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-814
           | A | 
      	    Boston | 
	    MA | 
      	        | 
		      MULT | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-816
           | A | 
      	    Winthrop | 
	    MA | 
      	      CATNMAAKPS0  | 
		      7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-822
           | A | 
      	    Somerville | 
	    MA | 
      	      CMBRMABENMD  | 
		      624H ONVOY SPECTRUM, LLC | 
		      128 | 
		        | 
	          2025-01-03  | 
           
       | 
      
        
          | 857-829
           | A | 
      	    Cambridge | 
	    MA | 
      	      NRTNMAAACM4  | 
		      6889 OMNIPOINT MIAMI E LICENSE, LLC | 
		      128 | 
		        | 
	          2024-02-09  | 
           
       | 
      
        
          | 857-832
           | A | 
      	    Brighton | 
	    MA | 
      	      SOVLMAABCMD  | 
		      516J TON80 COMMUNICATIONS, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-833
           | A | 
      	    Winthrop | 
	    MA | 
      	      CMBRMABENMD  | 
		      624H ONVOY SPECTRUM, LLC | 
		      128 | 
		        | 
	          2025-01-03  | 
           
       | 
      
        
          | 857-837
           | A | 
      	    Charlestown | 
	    MA | 
      	      BSTPMALLDS3  | 
		      892D ONVOY, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-847
           | A | 
      	    Dorchester | 
	    MA | 
      	      CMBRMABENMD  | 
		      624H ONVOY SPECTRUM, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-855
           | A | 
      	    Boston | 
	    MA | 
      	      BSTPMALLDS3  | 
		      892D ONVOY, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-856
           | A | 
      	    Cambridge | 
	    MA | 
      	      BSTPMALLDS3  | 
		      892D ONVOY, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-857
           | A | 
      	    Newton | 
	    MA | 
      	      CMBRMABENMD  | 
		      624H ONVOY SPECTRUM, LLC | 
		      128 | 
		        | 
	          2025-01-03  | 
           
       | 
      
        
          | 857-858
           | A | 
      	    Newton | 
	    MA | 
      	      BSTPMALLDS3  | 
		      892D ONVOY, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-867
           | A | 
      	    Brookline | 
	    MA | 
      	      CMBRMABENMD  | 
		      624H ONVOY SPECTRUM, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-869
           | A | 
      	    Boston | 
	    MA | 
      	      NRTNMAAACM4  | 
		      6889 OMNIPOINT MIAMI E LICENSE, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-877
           | A | 
      	    Brighton | 
	    MA | 
      	      BSTPMALLDS3  | 
		      892D ONVOY, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-880
           | A | 
      	    Boston | 
	    MA | 
      	      SOVLMAAB5MD  | 
		      732H BARR TELL USA, INC. - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-887
           | A | 
      	    Jamaica Plain | 
	    MA | 
      	      CMBRMABENMD  | 
		      624H ONVOY SPECTRUM, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-888
           | A | 
      	    Everett | 
	    MA | 
      	      NRTNMAAACM4  | 
		      5562 METROPCS, INC. | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-891
           | A | 
      	    Boston | 
	    MA | 
      	      NRTNMAAACM4  | 
		      6889 OMNIPOINT MIAMI E LICENSE, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-895
           | A | 
      	    Boston | 
	    MA | 
      	      CMBRMABE8MD  | 
		      156J RCLEC, INC. | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-919
           | A | 
      	    Brighton | 
	    MA | 
      	      NRTNMAAACM4  | 
		      6889 OMNIPOINT MIAMI E LICENSE, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-920
           | A | 
      	    Cambridge | 
	    MA | 
      	      XXXXXXXXXXX  | 
		      9102 VERIZON NEW ENGLAND INC. | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-928
           | A | 
      	    Cambridge | 
	    MA | 
      	      NRTNMAAACM4  | 
		      6889 OMNIPOINT MIAMI E LICENSE, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-930
           | A | 
      	    Boston | 
	    MA | 
      	      CMBRMABE8MD  | 
		      156J RCLEC, INC. | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-931
           | A | 
      	    Boston | 
	    MA | 
      	      CMBRMABE02T  | 
		      9102 VERIZON NEW ENGLAND INC. | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-939
           | A | 
      	    Quincy | 
	    MA | 
      	      CATNMAAKAMD  | 
		      6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-944
           | A | 
      	    Boston | 
	    MA | 
      	      CMBSMA01AMD  | 
		      4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 
		      128 | 
		        | 
	          2024-12-27  | 
           
       | 
      
        
          | 857-957
           | A | 
      	    Boston | 
	    MA | 
      	      CMBRMABEZMD  | 
		      756G WIDE VOICE, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-961
           | A | 
      	    Brighton | 
	    MA | 
      	      NRTNMAAACM4  | 
		      6889 OMNIPOINT MIAMI E LICENSE, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-971
           | A | 
      	    Charlestown | 
	    MA | 
      	      BSTPMALLDS3  | 
		      892D ONVOY, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-972
           | A | 
      	    Boston | 
	    MA | 
      	      CMBRMAORDSG  | 
		      4018 LEVEL 3 COMMUNICATIONS, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-989
           | A | 
      	    Newton | 
	    MA | 
      	      CMBSMA01AMD  | 
		      4036 NEW CINGULAR WIRELESS PCS, LLC - DC | 
		      128 | 
		        | 
	          2024-12-26  | 
           
       | 
      
        
          | 857-990
           | A | 
      	    Boston | 
	    MA | 
      	      BSTPMALLMMD  | 
		      139F WORLDCALL INTERCONNECT INC. | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-991
           | A | 
      	    Boston | 
	    MA | 
      	      NWTNMAWAVMD  | 
		      318J COMCAST IP PHONE, LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-994
           | A | 
      	    Newton | 
	    MA | 
      	        | 
		      490J DISH WIRELESS, LLC | 
		      128 | 
		        | 
	          2025-07-03  | 
           
       | 
      
        
          | 857-995
           | A | 
      	    Somerville | 
	    MA | 
      	      BSTPMALLDS3  | 
		      892D ONVOY, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-996
           | A | 
      	    Boston | 
	    MA | 
      	      CMBRMAORDS0  | 
		      7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC  - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-997
           | A | 
      	    Somerville | 
	    MA | 
      	      CMBRMABEQMD  | 
		      321J HD CARRIER LLC | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-998
           | A | 
      	    Cambridge | 
	    MA | 
      	      CATNMAAKAMD  | 
		      6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
        
          | 857-999
           | A | 
      	    Cambridge | 
	    MA | 
      	      SOVLMAABDS2  | 
		      268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 
		      128 | 
		        | 
	            | 
           
       | 
      
  
  
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  Last updated: Thu, 16 Oct 2025 03:04:18 UTC
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