NEW CINGULAR WIRELESS PCS, LLC - DC
18 prefixes in 857 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 857-205 | BOSTON | 4036 | 2001-03-19 | — |
| 857-259 | CAMBRIDGE | 4036 | 2011-05-24 | Yes |
| 857-265 | BOSTON | 4036 | 2011-07-12 | Yes |
| 857-272 | BOSTON | 4036 | 2006-03-01 | Yes |
| 857-348 | BOSTON | 4036 | — | Yes |
| 857-358 | QUINCY | 4036 | 2020-03-23 | Yes |
| 857-385 | DORCHESTER | 4036 | 2016-06-01 | Yes |
| 857-407 | ROXBURY | 4036 | 2015-06-01 | Yes |
| 857-419 | MILTON | 4036 | 2016-08-08 | Yes |
| 857-424 | ROXBURY | 4036 | 2016-10-25 | Yes |
| 857-425 | BRIGHTON | 4036 | 2016-09-06 | Yes |
| 857-430 | BOSTON | 4036 | 2024-11-13 | Yes |
| 857-445 | BOSTON | 4036 | 2006-03-21 | Yes |
| 857-472 | BOSTON | 4036 | 2001-12-17 | Yes |
| 857-498 | BRIGHTON | 4036 | 2001-08-24 | Yes |
| 857-499 | QUINCY | 4036 | 2001-03-29 | Yes |
| 857-944 | BOSTON | 4036 | 2024-11-12 | Yes |
| 857-989 | NEWTON | 4036 | 2024-11-11 | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.