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 |
| 857-467
| 0 |
Somerville |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-05-22 |
|
| 857-467
| 2 |
Somerville |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2024-03-04 |
|
| 857-467
| 3 |
Somerville |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2024-03-04 |
|
| 857-467
| 4 |
Somerville |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-05-22 |
|
| 857-467
| 6 |
Somerville |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2024-02-26 |
|
| 857-467
| 7 |
Somerville |
MA |
SOVLMAABCMD |
516J TON80 COMMUNICATIONS, LLC |
128 |
|
2022-04-30 |
|
| 857-467
| 8 |
Somerville |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2024-02-26 |
|
| 857-467
| 9 |
Somerville |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2023-12-23 |
|
| 857-468
| A |
Charlestown |
MA |
SOVLMAABCMD |
516J TON80 COMMUNICATIONS, LLC |
128 |
|
|
|
| 857-468
| 0 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2022-10-03 |
|
| 857-468
| 1 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2023-07-22 |
|
| 857-468
| 2 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2023-09-15 |
|
| 857-468
| 3 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2023-09-15 |
|
| 857-468
| 4 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2023-09-15 |
|
| 857-468
| 6 |
Charlestown |
MA |
SOVLMAABCMD |
516J TON80 COMMUNICATIONS, LLC |
128 |
|
2022-04-17 |
|
| 857-468
| 8 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2023-07-22 |
|
| 857-468
| 9 |
Charlestown |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2023-07-22 |
|
| 857-472
| A |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
|
|
| 857-472
| 0 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
|
|
| 857-472
| 1 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
|
|
| 857-472
| 2 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
|
|
| 857-472
| 3 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
|
|
| 857-472
| 4 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
|
|
| 857-472
| 5 |
Boston |
MA |
CATNMAAKPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2005-04-24 |
|
| 857-472
| 6 |
Boston |
MA |
CATNMAAKPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2005-04-24 |
|
| 857-472
| 7 |
Boston |
MA |
CATNMAAKPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2005-04-24 |
|
| 857-472
| 8 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
|
|
| 857-472
| 9 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
|
|
| 857-475
| A |
Chelsea |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
|
|
| 857-475
| 0 |
Chelsea |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2021-11-27 |
|
| 857-475
| 1 |
Chelsea |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2021-11-27 |
|
| 857-475
| 3 |
Chelsea |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-06 |
|
| 857-475
| 4 |
Chelsea |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-06 |
|
| 857-475
| 5 |
Chelsea |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-06 |
|
| 857-475
| 7 |
Chelsea |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-06-03 |
|
| 857-475
| 8 |
Chelsea |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2024-03-07 |
|
| 857-475
| 9 |
Chelsea |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2024-03-07 |
|
| 857-477
| A |
Jamaica Plain |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
|
|
| 857-477
| 0 |
Jamaica Plain |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-12 |
|
| 857-477
| 1 |
Jamaica Plain |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-12 |
|
| 857-477
| 2 |
Jamaica Plain |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-12 |
|
| 857-477
| 3 |
Jamaica Plain |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-12 |
|
| 857-477
| 4 |
Jamaica Plain |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-12 |
|
| 857-477
| 5 |
Jamaica Plain |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-16 |
|
| 857-477
| 6 |
Jamaica Plain |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-12 |
|
| 857-477
| 7 |
Jamaica Plain |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2016-04-11 |
|
| 857-477
| 8 |
Jamaica Plain |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2016-04-11 |
|
| 857-477
| 9 |
Jamaica Plain |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-04-12 |
|
| 857-488
| A |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
|
|
| 857-488
| 0 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2005-11-05 |
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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