Local Calling Guide
Area code/prefix search
NPA: 857
[Rate centres in NPA 857]
[Dial plan for NPA 857]
NXX: 335
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 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 |
|
Last updated: Sun, 26 Jan 2025 15:59:20 UTC
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