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 |
| 857-426
| 0 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2025-09-19 |
|
| 857-426
| 1 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2025-11-13 |
|
| 857-426
| 2 |
Brookline |
MA |
|
5562 METROPCS, INC. |
128 |
|
2024-12-30 |
|
| 857-426
| 3 |
Brookline |
MA |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2025-11-13 |
|
| 857-426
| 4 |
Brookline |
MA |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2025-11-13 |
|
| 857-426
| 5 |
Brookline |
MA |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2025-11-13 |
|
| 857-426
| 6 |
Brookline |
MA |
|
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2025-12-14 |
|
| 857-426
| 7 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2025-12-14 |
|
| 857-426
| 8 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2025-12-14 |
|
| 857-426
| 9 |
Brookline |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2024-12-28 |
|
| 857-427
| A |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2024-12-16 |
|
| 857-427
| 0 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-19 |
|
| 857-427
| 1 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-19 |
|
| 857-427
| 2 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-19 |
|
| 857-427
| 3 |
Boston |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-19 |
|
| 857-427
| 4 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2024-12-16 |
|
| 857-427
| 5 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2024-12-16 |
|
| 857-427
| 6 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2024-12-16 |
|
| 857-427
| 7 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2024-12-16 |
|
| 857-427
| 8 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2024-12-16 |
|
| 857-427
| 9 |
Boston |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2024-12-16 |
|
| 857-428
| A |
Everett |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
|
|
| 857-428
| 0 |
Everett |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2024-03-01 |
|
| 857-428
| 1 |
Everett |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2024-03-01 |
|
| 857-428
| 2 |
Everett |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-08-12 |
|
| 857-428
| 3 |
Everett |
MA |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
2023-08-12 |
|
| 857-428
| 6 |
Everett |
MA |
SOVLMAABDMD |
490J BOOST SUBSCRIBERCO L.L.C. |
128 |
|
2024-06-10 |
|
| 857-428
| 7 |
Everett |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-06 |
|
| 857-428
| 8 |
Everett |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-06 |
|
| 857-428
| 9 |
Everett |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-06 |
|
| 857-429
| A |
Roxbury |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2024-12-28 |
|
| 857-429
| 0 |
Roxbury |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-31 |
|
| 857-429
| 1 |
Roxbury |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-31 |
|
| 857-429
| 2 |
Roxbury |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-30 |
|
| 857-429
| 3 |
Roxbury |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-30 |
|
| 857-429
| 4 |
Roxbury |
MA |
CMBRMABENMD |
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-30 |
|
| 857-429
| 5 |
Roxbury |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-31 |
|
| 857-429
| 6 |
Roxbury |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-31 |
|
| 857-429
| 7 |
Roxbury |
MA |
|
073H TELNYX LLC |
128 |
|
2026-01-07 |
|
| 857-429
| 8 |
Roxbury |
MA |
|
5562 METROPCS, INC. |
128 |
|
2024-12-28 |
|
| 857-429
| 9 |
Roxbury |
MA |
NRTNMAAACM4 |
6889 OMNIPOINT MIAMI E LICENSE, LLC |
128 |
|
2024-12-28 |
|
| 857-430
| A |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-28 |
|
| 857-430
| 0 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-28 |
|
| 857-430
| 1 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-28 |
|
| 857-430
| 2 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-28 |
|
| 857-430
| 3 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-28 |
|
| 857-430
| 4 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-28 |
|
| 857-430
| 5 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-28 |
|
| 857-430
| 6 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-28 |
|
| 857-430
| 7 |
Boston |
MA |
CMBSMA01AMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
128 |
|
2024-12-28 |
|
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Last updated: Wed, 04 Mar 2026 03:00:52 UTC
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