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 |
| 857-356
| A |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
|
|
| 857-356
| 0 |
Boston |
MA |
CMBRMABEEMD |
116E INTRADO COMMUNICATIONS, LLC |
128 |
|
2019-11-26 |
|
| 857-356
| 1 |
Boston |
MA |
CMBRMABEEMD |
116E INTRADO COMMUNICATIONS, LLC |
128 |
|
2019-11-26 |
|
| 857-356
| 2 |
Boston |
MA |
CMBRMABEEMD |
116E INTRADO COMMUNICATIONS, LLC |
128 |
|
2019-11-26 |
|
| 857-356
| 3 |
Boston |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2019-12-28 |
|
| 857-356
| 4 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-12-02 |
|
| 857-356
| 5 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2019-11-25 |
|
| 857-356
| 6 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2019-11-25 |
|
| 857-356
| 7 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2019-11-25 |
|
| 857-356
| 8 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2019-11-25 |
|
| 857-356
| 9 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2019-11-25 |
|
| 857-357
| A |
Cambridge |
MA |
CMBRMABEUMD |
007J MEGAPHONE, INC. |
128 |
|
|
|
| 857-357
| 0 |
Cambridge |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2020-04-13 |
|
| 857-357
| 1 |
Cambridge |
MA |
CMBRMABEUMD |
007J MEGAPHONE, INC. |
128 |
|
2020-02-21 |
|
| 857-357
| 2 |
Cambridge |
MA |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2022-11-18 |
|
| 857-357
| 3 |
Cambridge |
MA |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2021-11-21 |
|
| 857-357
| 4 |
Cambridge |
MA |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2021-10-24 |
|
| 857-357
| 5 |
Cambridge |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2021-09-03 |
|
| 857-357
| 6 |
Cambridge |
MA |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2021-11-21 |
|
| 857-357
| 7 |
Cambridge |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-06-21 |
|
| 857-357
| 8 |
Cambridge |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-06-21 |
|
| 857-357
| 9 |
Cambridge |
MA |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2021-11-21 |
|
| 857-358
| A |
Quincy |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
|
|
| 857-358
| 0 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-06-07 |
|
| 857-358
| 1 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-06-07 |
|
| 857-358
| 2 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-06-07 |
|
| 857-358
| 3 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-07-31 |
|
| 857-358
| 4 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-07-31 |
|
| 857-358
| 5 |
Quincy |
MA |
CMBRMABETMD |
321J HD CARRIER LLC |
128 |
|
2020-05-24 |
|
| 857-358
| 6 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-07-31 |
|
| 857-358
| 7 |
Quincy |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2020-05-24 |
|
| 857-358
| 8 |
Quincy |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2020-05-23 |
|
| 857-358
| 9 |
Quincy |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2020-05-23 |
|
| 857-359
| A |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
|
|
| 857-359
| 0 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-05-08 |
|
| 857-359
| 1 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-05-08 |
|
| 857-359
| 2 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-05-08 |
|
| 857-359
| 3 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-05-08 |
|
| 857-359
| 4 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-05-08 |
|
| 857-359
| 5 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-05-08 |
|
| 857-359
| 6 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-05-08 |
|
| 857-359
| 7 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-05-08 |
|
| 857-359
| 8 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-05-08 |
|
| 857-359
| 9 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2020-07-30 |
|
| 857-360
| A |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
|
|
| 857-360
| 0 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-12-20 |
|
| 857-360
| 1 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-08-01 |
|
| 857-360
| 2 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-08-01 |
|
| 857-360
| 3 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-08-01 |
|
| 857-360
| 4 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2016-07-12 |
|
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Last updated: Sat, 02 May 2026 12:20:53 UTC
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