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 |
| 857-369
| 6 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2021-02-23 |
|
| 857-369
| 7 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2021-02-23 |
|
| 857-369
| 8 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2021-02-23 |
|
| 857-369
| 9 |
Boston |
MA |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2021-02-23 |
|
| 857-370
| A |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
|
|
| 857-370
| 0 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2021-06-05 |
|
| 857-370
| 1 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2021-06-05 |
|
| 857-370
| 2 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2021-06-05 |
|
| 857-370
| 3 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-07-10 |
|
| 857-370
| 4 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-07-10 |
|
| 857-370
| 5 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-07-10 |
|
| 857-370
| 6 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-07-10 |
|
| 857-370
| 7 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2021-09-17 |
|
| 857-370
| 8 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2021-05-10 |
|
| 857-370
| 9 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2021-05-10 |
|
| 857-371
| A |
Watertown |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
|
|
| 857-371
| 0 |
Watertown |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2021-11-27 |
|
| 857-371
| 1 |
Watertown |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-06-22 |
|
| 857-371
| 2 |
Watertown |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-06-22 |
|
| 857-371
| 3 |
Watertown |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-06-22 |
|
| 857-371
| 4 |
Watertown |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-06-22 |
|
| 857-371
| 5 |
Watertown |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-07-10 |
|
| 857-371
| 6 |
Watertown |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2022-04-17 |
|
| 857-371
| 7 |
Watertown |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-07-10 |
|
| 857-371
| 8 |
Watertown |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-07-10 |
|
| 857-371
| 9 |
Watertown |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-07-10 |
|
| 857-372
| A |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
|
|
| 857-372
| 0 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2021-07-30 |
|
| 857-372
| 1 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2021-07-30 |
|
| 857-372
| 2 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2021-07-30 |
|
| 857-372
| 3 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2021-07-30 |
|
| 857-372
| 4 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2022-03-29 |
|
| 857-372
| 5 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2022-03-29 |
|
| 857-372
| 6 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2022-03-29 |
|
| 857-372
| 7 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2022-03-29 |
|
| 857-372
| 8 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2022-03-29 |
|
| 857-372
| 9 |
Quincy |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2022-03-29 |
|
| 857-373
| A |
Belmont |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-373
| 0 |
Belmont |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-373
| 1 |
Belmont |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-373
| 2 |
Belmont |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-373
| 3 |
Belmont |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-373
| 4 |
Belmont |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-373
| 5 |
Belmont |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-373
| 7 |
Belmont |
MA |
|
145J TERRA NOVA TELECOM INC. |
128 |
|
2022-05-13 |
|
| 857-373
| 8 |
Belmont |
MA |
|
515J IP HORIZON LLC |
128 |
|
2015-03-27 |
|
| 857-373
| 9 |
Belmont |
MA |
NRTNMAAACM4 |
5562 METROPCS, INC. |
128 |
|
2003-01-14 |
|
| 857-374
| A |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
|
|
| 857-374
| 0 |
Quincy |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2021-10-11 |
|
| 857-374
| 1 |
Quincy |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2021-10-11 |
|
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Last updated: Tue, 16 Jun 2026 00:09:45 UTC
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