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 |
| 857-332
| 8 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2018-11-14 |
|
| 857-332
| 9 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2018-12-05 |
|
| 857-333
| A |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
|
|
| 857-333
| 0 |
Boston |
MA |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2011-02-18 |
|
| 857-333
| 1 |
Boston |
MA |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2011-02-18 |
|
| 857-333
| 2 |
Boston |
MA |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2011-02-18 |
|
| 857-333
| 3 |
Boston |
MA |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2011-02-18 |
|
| 857-333
| 4 |
Boston |
MA |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2011-02-18 |
|
| 857-333
| 5 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2012-12-16 |
|
| 857-333
| 6 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2012-12-16 |
|
| 857-333
| 7 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2012-12-16 |
|
| 857-333
| 8 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2012-12-16 |
|
| 857-333
| 9 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2011-01-07 |
|
| 857-334
| A |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
|
|
| 857-334
| 0 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-12-04 |
|
| 857-334
| 1 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-12-04 |
|
| 857-334
| 2 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-12-04 |
|
| 857-334
| 3 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-12-15 |
|
| 857-334
| 4 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-11-13 |
|
| 857-334
| 5 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-11-13 |
|
| 857-334
| 6 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-11-11 |
|
| 857-334
| 7 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-11-11 |
|
| 857-334
| 8 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-11-11 |
|
| 857-334
| 9 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2006-11-11 |
|
| 857-335
| A |
Boston |
MA |
BSTPMALLX0X |
425J CSC WIRELESS, LLC |
128 |
|
|
|
| 857-335
| 0 |
Boston |
MA |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2020-06-06 |
|
| 857-335
| 1 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-06-15 |
|
| 857-335
| 2 |
Boston |
MA |
BSTPMALLX0X |
425J CSC WIRELESS, LLC |
128 |
|
2019-07-28 |
|
| 857-335
| 3 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2019-08-05 |
|
| 857-335
| 4 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-06-26 |
|
| 857-335
| 5 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2019-10-03 |
|
| 857-335
| 6 |
Boston |
MA |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2020-06-06 |
|
| 857-335
| 7 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2019-10-12 |
|
| 857-335
| 8 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-06-15 |
|
| 857-335
| 9 |
Boston |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2020-06-15 |
|
| 857-336
| A |
Winthrop |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
|
|
| 857-336
| 0 |
Winthrop |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2016-04-30 |
|
| 857-336
| 1 |
Winthrop |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2016-04-30 |
|
| 857-336
| 2 |
Winthrop |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-05-01 |
|
| 857-336
| 3 |
Winthrop |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-05-01 |
|
| 857-336
| 4 |
Winthrop |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-05-01 |
|
| 857-336
| 5 |
Winthrop |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-05-01 |
|
| 857-336
| 6 |
Winthrop |
MA |
BSTNMABLOMD |
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
2016-07-16 |
|
| 857-336
| 8 |
Winthrop |
MA |
|
515J IP HORIZON LLC |
128 |
|
2016-07-01 |
|
| 857-336
| 9 |
Winthrop |
MA |
CMBRMABEQMD |
321J HD CARRIER LLC |
128 |
|
2016-09-03 |
|
| 857-337
| A |
Brookline |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
|
|
| 857-337
| 0 |
Brookline |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2015-12-05 |
|
| 857-337
| 1 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2016-01-14 |
|
| 857-337
| 2 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2017-05-09 |
|
| 857-337
| 3 |
Brookline |
MA |
SOVLMAAB5MD |
732H BARR TELL USA, INC. - MA |
128 |
|
2016-01-02 |
|
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Last updated: Sat, 02 May 2026 12:20:53 UTC
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