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NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-402 A East Boston MA CMBRMABEQMD  321J HD CARRIER LLC 128      
857-403 A Quincy MA   829J PAETEC ITEL, LLC 128      
857-404 A Newton MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
857-405 A Brookline MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-406 A Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-407 A Roxbury MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-408 A Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-409 A Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-410 A Charlestown MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-412 A Cambridge MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-413 A Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-414 A Brighton MA CMBRMABEQMD  321J HD CARRIER LLC 128      
857-415 A Boston MA SOVLMAAB3MD  197D VONAGE AMERICA LLC 128      
857-416 A Boston MA CHTWMABF2MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128      
857-417 A Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-418 A Dorchester MA CHTWMABF2MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 128      
857-419 A Milton MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-420 A Cambridge MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-421 A Brookline MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-09-01   
857-422 A South Boston MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-423 A Brookline MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-424 A Roxbury MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-425 A Brighton MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-426 A Brookline MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-12-28   
857-427 A Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-12-16   
857-428 A Everett MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-429 A Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-12-28   
857-430 A Boston MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2024-12-28   
857-431 A Boston MA   700J WAVENATION, LLC 128   2025-09-06   
857-437 A Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-443 A Boston MA SOVLMAAB6MD  939H COMMIO, LLC 128      
857-444 A Boston MA SOVLMAABDS2  268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 128      
857-445 A Boston MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-449 A Boston MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
857-452 A Charlestown MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-453 A Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-465 A Boston MA SOVLMAABAMD  965H FRACTEL, LLC 128      
857-466 A Hyde Park MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
857-467 A Somerville MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
857-468 A Charlestown MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
857-472 A Boston MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-475 A Chelsea MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-477 A Jamaica Plain MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-488 A Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-491 A Boston MA BSTPMALLBMD  814J LIGHTPATH OF NEW ENGLAND 128      
857-492 A Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-496 A South Boston MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128      
857-497 A Charlestown MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-498 A Brighton MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-499 A Quincy MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
857-500 A Cambridge MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-504 A Boston MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2024-01-03   
857-505 A Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-506 A Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-507 A Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-520 A Hyde Park MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-523 A Somerville MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-524 A South Boston MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-526 A Quincy MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-529 A Cambridge MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-540 A Brighton MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-544 A Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-547 A Jamaica Plain MA   829J PAETEC ITEL, LLC 128      
857-550 A Belmont MA SOVLMAAB6MD  939H COMMIO, LLC 128      
857-557 A Boston MA CMBRMABETMD  321J HD CARRIER LLC 128      
857-559 A Brighton MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-565 A Brookline MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2024-01-12   
857-567 A Dorchester MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-574 A East Boston MA   829J PAETEC ITEL, LLC 128      
857-575 A Somerville MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-576 A Brookline MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-577 A Charlestown MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-578 A Newton MA BSTPMALLZMD  506J TWILIO INTERNATIONAL, INC. 128      
857-579 A Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2025-02-21   
857-587 A Dorchester MA CMBRMABEQMD  321J HD CARRIER LLC 128      
857-588 A Charlestown MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-597 A Winthrop MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-598 A Milton MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-600 A Cambridge MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128      
857-605 A Brighton MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-615 A Boston MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-626 A Belmont MA CMBRMAORDS0  7199 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 128      
857-636 A Newton MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-639 A Cambridge MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
857-654 A Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-656 A Boston MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2025-01-05   
857-663 A Dorchester MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-666 A Brookline MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-675 A Roxbury MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-678 A Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
857-688 A Dorchester MA SOVLMAABAMD  965H FRACTEL, LLC 128      
857-693 A Roxbury MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
857-701 A Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
857-702 A Boston MA CMBRMABE5MD  551G NUSO, LLC 128      
857-703 A Hyde Park MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-706 A Cambridge MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
857-707 A Brookline MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
857-719 A Jamaica Plain MA NRTNMAAACM4  5562 METROPCS, INC. 128      
857-728 A Jamaica Plain MA CATNMAAKPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
857-737 A Watertown MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      

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

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