NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/22/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 214-597 | not yet reported which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-609 | 0–9 XXXall 10 · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | WAXAHACHIE | TX |
| — | 214-621 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-680 | not yet reported which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-682 | not yet reported which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-684 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-718 | not yet reported which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-727 | not yet reported which blocks → | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| — | 214-732 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-734 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-837 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-868 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-869 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-876 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-878 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-882 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-893 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-923 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-924 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-929 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| — | 214-986 | none assigned yet which blocks → | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.