Local Calling Guide
Area code/prefix search
NPA: 857
[Rate centres in NPA 857]
[Dial plan for NPA 857]
<< 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 >>
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 857-410
| 8 |
Charlestown |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2016-10-14 |
|
| 857-410
| 9 |
Charlestown |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2019-02-23 |
|
| 857-412
| A |
Cambridge |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
|
|
| 857-412
| 0 |
Cambridge |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-04-06 |
|
| 857-412
| 1 |
Cambridge |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-02-18 |
|
| 857-412
| 2 |
Cambridge |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-02-18 |
|
| 857-412
| 3 |
Cambridge |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-02-18 |
|
| 857-412
| 5 |
Cambridge |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-02-18 |
|
| 857-412
| 6 |
Cambridge |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-04-06 |
|
| 857-412
| 7 |
Cambridge |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2016-03-10 |
|
| 857-412
| 8 |
Cambridge |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2016-03-10 |
|
| 857-412
| 9 |
Cambridge |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-04-06 |
|
| 857-413
| A |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
|
|
| 857-413
| 0 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-10-15 |
|
| 857-413
| 1 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-10-15 |
|
| 857-413
| 2 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2005-11-10 |
|
| 857-413
| 3 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2005-11-10 |
|
| 857-413
| 4 |
Boston |
MA |
CATNMAAKPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2006-01-07 |
|
| 857-413
| 5 |
Boston |
MA |
CATNMAAKPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2006-01-07 |
|
| 857-413
| 6 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-10-15 |
|
| 857-413
| 7 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2006-03-09 |
|
| 857-413
| 8 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-02-03 |
|
| 857-413
| 9 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-02-03 |
|
| 857-414
| A |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
|
|
| 857-414
| 0 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-414
| 1 |
Brighton |
MA |
BSTPMALLOMD |
073H TELNYX LLC |
128 |
|
2017-04-19 |
|
| 857-414
| 2 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-414
| 3 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-414
| 4 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-414
| 5 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-414
| 6 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-414
| 7 |
Brighton |
MA |
BSTPMALL5MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
128 |
|
2016-06-14 |
|
| 857-414
| 8 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-414
| 9 |
Brighton |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-415
| A |
Boston |
MA |
SOVLMAAB3MD |
197D VONAGE AMERICA LLC |
128 |
|
|
|
| 857-415
| 0 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2014-08-23 |
|
| 857-415
| 1 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2014-08-23 |
|
| 857-415
| 2 |
Boston |
MA |
SOVLMAAB3MD |
197D VONAGE AMERICA LLC |
128 |
|
2013-09-01 |
|
| 857-415
| 3 |
Boston |
MA |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2013-11-22 |
|
| 857-415
| 4 |
Boston |
MA |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2014-01-15 |
|
| 857-415
| 5 |
Boston |
MA |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2014-05-20 |
|
| 857-415
| 6 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2014-10-22 |
|
| 857-415
| 7 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2014-10-06 |
|
| 857-415
| 8 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2014-10-06 |
|
| 857-415
| 9 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2014-10-06 |
|
| 857-416
| A |
Boston |
MA |
CHTWMABF2MD |
671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
128 |
|
|
|
| 857-416
| 0 |
Boston |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2024-03-04 |
|
| 857-416
| 1 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2024-03-09 |
|
| 857-416
| 2 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-06-26 |
|
| 857-416
| 3 |
Boston |
MA |
CATNMAAKPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2023-03-09 |
|
<< 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 >>
Last updated: Wed, 04 Mar 2026 03:00:52 UTC
Sponsored by: Execulink Telecom
Like this site? We accept donations via PayPal.