Local Calling Guide
Area code/prefix search
NPA: 857
[Rate centres in NPA 857]
[Dial plan for NPA 857]
NXX: 357
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 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 |
|
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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