NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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 |
|---|---|---|---|---|---|---|
| 2023-05-22 | 678-470 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | ATLANTA SO | GA |
| 2022-05-10 | 678-968 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - GA | 067D | ADAIRSVL | GA |
| 2005-04-29 | 678-949 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - GA | 067D | ATLANTA | GA |
| — | 678-370 | not yet reported which blocks → | ONVOY, LLC - GA | 067D | ATLANTA NW | GA |
| — | 678-397 | not yet reported which blocks → | ONVOY, LLC - GA | 067D | ATLANTA NE | GA |
| — | 678-500 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - GA | 067D | ATLANTA | GA |
| — | 678-551 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - GA | 067D | ATLANTA NE | GA |
| — | 678-679 | 3XXX which blocks → | ONVOY, LLC - GA | 067D | CUMMING | GA |
| — | 678-719 | 0–9 XXXall 10 · 7 holders which blocks → | ONVOY, LLC - GA | 067D | CARTERSVL | GA |
| — | 678-730 | 3XXX which blocks → | ONVOY, LLC - GA | 067D | BUFORD | GA |
| — | 678-735 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - GA | 067D | ATLANTA NE | GA |
| — | 678-750 | 3XXX which blocks → | ONVOY, LLC - GA | 067D | CONYERS | GA |
| — | 678-866 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - GA | 067D | FLOWEYBRCH | GA |
| — | 678-883 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - GA | 067D | ROCKMART | GA |
| — | 678-904 | 3XXX which blocks → | ONVOY, LLC - GA | 067D | ATLANTA | GA |
| — | 678-940 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - GA | 067D | LULA | GA |
| — | 678-941 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - GA | 067D | VILLA RICA | GA |
| — | 678-990 | 6XXX which blocks → | ONVOY, LLC - GA | 067D | ATLANTA NE | GA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.