All assignees
122 prefixes in 339 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 339-788 | ROCKLAND | 6387 | 2001-11-28 | Yes |
| 339-793 | MARSHFIELD | 6387 | 2001-09-13 | Yes |
| 339-800 | ARLINGTON | 145J | 2019-02-21 | Yes |
| 339-811 | XXXXXXXXXX | MULT | — | — |
| 339-814 | WALTHAM | 9102 | — | — |
| 339-832 | KINGSTON | 6387 | 2001-04-24 | Yes |
| 339-837 | RANDOLPH | 516J | 2022-02-01 | Yes |
| 339-883 | LYNN | 829J | 2001-03-20 | Yes |
| 339-888 | LYNN | 892D | 2015-03-23 | Yes |
| 339-900 | MARSHFIELD | 892D | — | Yes |
| 339-911 | XXXXXXXXXX | MULT | — | — |
| 339-920 | WALTHAM | 9102 | — | — |
| 339-927 | WOBURN | 4036 | 2001-09-27 | Yes |
| 339-931 | XXXXXXXXXX | 9102 | — | — |
| 339-933 | BRYANTVL | 6387 | 2001-08-10 | Yes |
| 339-950 | — | — | ||
| 339-958 | XXXXXXXXXX | — | — | |
| 339-959 | — | — | ||
| 339-970 | LEXINGTON | 4018 | 2001-03-20 | Yes |
| 339-976 | — | — | ||
| 339-987 | RANDOLPH | 6387 | 2001-05-10 | Yes |
| 339-999 | WOBURN | 892D | — | 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.