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 |
|---|---|---|---|---|---|---|
| 2024-04-18 | 601-769 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - MS | 719E | JACKSON | MS |
| 2022-07-25 | 601-612 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - MS | 719E | MADISON | MS |
| 2022-07-15 | 601-524 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - MS | 719E | JACKSON | MS |
| 2021-04-23 | 601-210 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - MS | 719E | JACKSON | MS |
| 2016-08-19 | 601-821 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 4 holders which blocks → | ONVOY, LLC - MS | 719E | NVALAIRSTA | MS |
| 2016-08-19 | 601-895 | 0XXX1XXX2XXX7XXX8XXX9XXX · 3 holders which blocks → | ONVOY, LLC - MS | 719E | OBADIAH | MS |
| 2016-03-29 | 601-586 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - MS | 719E | JACKSON | MS |
| — | 601-207 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - MS | 719E | MERIDIAN | MS |
| — | 601-216 | none assigned yet which blocks → | ONVOY, LLC - MS | 719E | MOUNTOLIVE | MS |
| — | 601-290 | none assigned yet which blocks → | ONVOY, LLC - MS | 719E | DE KALB | MS |
| — | 601-429 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | ONVOY, LLC - MS | 719E | VICKSBURG | MS |
| — | 601-666 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | ONVOY, LLC - MS | 719E | NEWTONHKRY | MS |
| — | 601-881 | 0XXX1XXX2XXX3XXX6XXX8XXX · 4 holders which blocks → | ONVOY, LLC - MS | 719E | LEAKESVL | MS |
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.