Local Calling Guide
Area code/prefix search
NPA: 857
[Rate centres in NPA 857]
[Dial plan for NPA 857]
NXX: 304
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 857-304
| A |
Watertown |
MA |
CMBRMA01DS5 |
7135 TC SYSTEMS, INC. |
128 |
|
|
|
| 857-304
| 0 |
Watertown |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2014-09-14 |
|
| 857-304
| 1 |
Watertown |
MA |
|
515J IP HORIZON LLC |
128 |
|
2015-03-26 |
|
| 857-304
| 2 |
Watertown |
MA |
WSBOMAGO0MD |
4084 PAETEC COMMUNICATIONS, INC. - MA |
128 |
|
2015-05-04 |
|
| 857-304
| 3 |
Watertown |
MA |
CMBRMA01DS5 |
7135 TC SYSTEMS, INC. |
128 |
|
2013-05-10 |
|
| 857-304
| 4 |
Watertown |
MA |
NWTNMAWAVMD |
318J COMCAST IP PHONE, LLC |
128 |
|
2014-09-19 |
|
| 857-304
| 5 |
Watertown |
MA |
CMBRMA01DS5 |
7135 TC SYSTEMS, INC. |
128 |
|
2014-10-27 |
|
| 857-304
| 6 |
Watertown |
MA |
CMBRMA01DS5 |
7135 TC SYSTEMS, INC. |
128 |
|
2015-06-22 |
|
| 857-304
| 7 |
Watertown |
MA |
BSTPMALL5MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
128 |
|
2014-04-24 |
|
| 857-304
| 8 |
Watertown |
MA |
CMBRMA01DS5 |
7135 TC SYSTEMS, INC. |
128 |
|
2015-04-20 |
|
| 857-304
| 9 |
Watertown |
MA |
SOVLMAABDS2 |
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2015-06-07 |
|
Last updated: Sun, 26 Jan 2025 15:59:20 UTC
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