NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026
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 |
|---|---|---|---|---|---|---|
| — | 209-714 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY, LLC - CA | 649C | SUTTER CRK | CA |
| — | 209-721 | not yet reported which blocks → | ONVOY, LLC - CA | 649C | MERCED | CA |
| — | 209-729 | 9XXX which blocks → | ONVOY, LLC - CA | 649C | ANGELSCAMP | CA |
| — | 209-733 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | ONVOY, LLC - CA | 649C | GUSTINE | CA |
| — | 209-734 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - CA | 649C | HERALD | CA |
| — | 209-755 | not yet reported which blocks → | ONVOY, LLC - CA | 649C | SANANDREAS | CA |
| — | 209-758 | not yet reported which blocks → | ONVOY, LLC - CA | 649C | MODESTO | CA |
| — | 209-775 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - CA | 649C | MANTECA | CA |
| — | 209-783 | 0XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - CA | 649C | KNIGHTFRRY | CA |
| — | 209-784 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - CA | 649C | LE GRAND | CA |
| — | 209-787 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY, LLC - CA | 649C | LOCKEFORD | CA |
| — | 209-789 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | ONVOY, LLC - CA | 649C | MOCCASIN | CA |
| — | 209-796 | 2XXX5XXX · 2 holders which blocks → | ONVOY, LLC - CA | 649C | THORNTON | CA |
| — | 209-797 | 5XXX6XXX7XXX · 2 holders which blocks → | ONVOY, LLC - CA | 649C | LOCKEFORD | CA |
| — | 209-805 | 0XXX1XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - CA | 649C | CROWS LDG | CA |
| — | 209-821 | 1XXX2XXX5XXX6XXX which blocks → | ONVOY, LLC - CA | 649C | ESCALON | CA |
| — | 209-828 | 1XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → | ONVOY, LLC - CA | 649C | LOS BANOS | CA |
| — | 209-844 | 5XXX6XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - CA | 649C | OAKDALE | CA |
| — | 209-856 | 5XXX7XXX9XXX · 2 holders which blocks → | ONVOY, LLC - CA | 649C | CROWS LDG | CA |
| — | 209-882 | 1XXX2XXX5XXX6XXX · 3 holders which blocks → | ONVOY, LLC - CA | 649C | HUGHSON | CA |
| — | 209-885 | 2XXX7XXX8XXX9XXX · 2 holders which blocks → | ONVOY, LLC - CA | 649C | MILTON | CA |
| — | 209-893 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | ONVOY, LLC - CA | 649C | PLYMOUTH | CA |
| — | 209-900 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - CA | 649C | MODESTO | CA |
| — | 209-912 | 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - CA | 649C | GALT | CA |
| — | 209-926 | 4XXX6XXX7XXX · 3 holders which blocks → | ONVOY, LLC - CA | 649C | STOCKTON | CA |
| — | 209-927 | 1XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - CA | 649C | MOCCASIN | CA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.