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 |
| 857-374
| 3 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2024-02-25 |
|
| 857-374
| 4 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-08-14 |
|
| 857-374
| 5 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-08-14 |
|
| 857-374
| 6 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-08-14 |
|
| 857-374
| 7 |
Quincy |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-08-14 |
|
| 857-374
| 8 |
Quincy |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2021-10-11 |
|
| 857-374
| 9 |
Quincy |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2021-10-11 |
|
| 857-375
| A |
Dorchester |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
|
|
| 857-375
| 0 |
Dorchester |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2021-10-11 |
|
| 857-375
| 1 |
Dorchester |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2021-10-11 |
|
| 857-375
| 2 |
Dorchester |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2021-10-11 |
|
| 857-375
| 3 |
Dorchester |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2021-10-11 |
|
| 857-375
| 4 |
Dorchester |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2021-11-18 |
|
| 857-375
| 5 |
Dorchester |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-08-14 |
|
| 857-375
| 6 |
Dorchester |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-08-14 |
|
| 857-375
| 7 |
Dorchester |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-08-14 |
|
| 857-375
| 8 |
Dorchester |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-08-14 |
|
| 857-375
| 9 |
Dorchester |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2021-10-11 |
|
| 857-376
| A |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
|
|
| 857-376
| 0 |
Brookline |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2021-08-29 |
|
| 857-376
| 1 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2022-08-25 |
|
| 857-376
| 2 |
Brookline |
MA |
SOVLMAAB6MD |
939H COMMIO, LLC |
128 |
|
2021-08-29 |
|
| 857-376
| 3 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-08-14 |
|
| 857-376
| 4 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-08-14 |
|
| 857-376
| 5 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-08-14 |
|
| 857-376
| 6 |
Brookline |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2021-08-14 |
|
| 857-376
| 7 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2021-09-17 |
|
| 857-376
| 8 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2021-08-13 |
|
| 857-376
| 9 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2021-08-13 |
|
| 857-377
| A |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
|
|
| 857-377
| 0 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2014-06-08 |
|
| 857-377
| 1 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2014-06-08 |
|
| 857-377
| 2 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2014-06-08 |
|
| 857-377
| 3 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2014-06-08 |
|
| 857-377
| 4 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2014-06-08 |
|
| 857-377
| 5 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2014-06-08 |
|
| 857-377
| 6 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2014-06-08 |
|
| 857-377
| 7 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2014-06-08 |
|
| 857-377
| 8 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2014-06-08 |
|
| 857-377
| 9 |
Boston |
MA |
|
829J PAETEC ITEL, LLC |
128 |
|
2014-06-08 |
|
| 857-378
| A |
Boston |
MA |
BSTNMABEDS9 |
9102 VERIZON NEW ENGLAND INC. |
128 |
|
|
|
| 857-378
| 0 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-03-06 |
|
| 857-378
| 1 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-03-06 |
|
| 857-378
| 2 |
Boston |
MA |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
128 |
|
2017-03-22 |
|
| 857-378
| 3 |
Boston |
MA |
|
145J TERRA NOVA TELECOM INC. |
128 |
|
2023-08-06 |
|
| 857-378
| 4 |
Boston |
MA |
CHTWMABF2MD |
671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
128 |
|
2017-04-10 |
|
| 857-378
| 5 |
Boston |
MA |
BSTNMABEDS9 |
9102 VERIZON NEW ENGLAND INC. |
128 |
|
2017-03-03 |
|
| 857-378
| 6 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-03-06 |
|
| 857-378
| 7 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-03-06 |
|
| 857-378
| 8 |
Boston |
MA |
CATNMAAKAMD |
6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA |
128 |
|
2017-03-06 |
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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