NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
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 |
|---|---|---|---|---|---|---|
| 2021-01-08 | 903-992 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → | ONVOY, LLC - TX | 903C | CHANDLER | TX |
| 2021-01-08 | 903-995 | 1XXX2XXX3XXX5XXX7XXX9XXX · 4 holders which blocks → | ONVOY, LLC - TX | 903C | MURCHISON | TX |
| 2021-01-08 | 903-996 | 1XXX2XXX3XXX4XXX7XXX8XXX · 5 holders which blocks → | ONVOY, LLC - TX | 903C | LEONARD | TX |
| 2021-01-08 | 903-997 | 0XXX1XXX2XXX3XXX5XXX8XXX9XXX · 6 holders which blocks → | ONVOY, LLC - TX | 903C | WHITEWRGHT | TX |
| 2014-12-02 | 903-290 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | ONVOY, LLC - TX | 903C | TOM BEAN | TX |
| 2011-10-17 | 903-202 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - TX | 903C | WHITEHOUSE | TX |
| 2011-02-22 | 903-500 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | ONVOY, LLC - TX | 903C | LONGVIEW | TX |
| 2008-12-16 | 903-740 | 0XXX1XXX which blocks → | ONVOY, LLC - TX | 903C | LONGVIEW | TX |
| 2006-10-30 | 903-212 | 5XXX which blocks → | ONVOY, LLC - TX | 903C | LONGVIEW | TX |
| 2006-10-30 | 903-301 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | ONVOY, LLC - TX | 903C | TYLER | TX |
| 2006-07-12 | 903-912 | 3XXX4XXX8XXX · 3 holders which blocks → | ONVOY, LLC - TX | 903C | JEWETT | TX |
| 2006-05-05 | 903-803 | 1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 2 holders which blocks → | ONVOY, LLC - TX | 903C | LONGVIEW | TX |
| 2004-02-18 | 903-230 | none assigned yet which blocks → | ONVOY, LLC - TX | 903C | LONGVIEW | TX |
| — | 903-260 | 1XXX2XXX7XXX8XXX9XXX which blocks → | ONVOY, LLC - TX | 903C | TEXARKANA | TX |
| — | 903-282 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 6 holders which blocks → | ONVOY, LLC - TX | 903C | KERENS | TX |
| — | 903-385 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | ONVOY, LLC - TX | 903C | EDGEWOOD | TX |
| — | 903-437 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - TX | 903C | BROWNSBORO | TX |
| — | 903-470 | 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 2 holders which blocks → | ONVOY, LLC - TX | 903C | LONGVIEW | TX |
| — | 903-625 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | ONVOY, LLC - TX | 903C | JACKSONVL | TX |
| — | 903-745 | none assigned yet which blocks → | ONVOY, LLC - TX | 903C | HOWE | TX |
| — | 903-900 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - TX | 903C | PARIS | TX |
| — | 903-942 | 2XXX3XXX6XXX · 2 holders which blocks → | ONVOY, LLC - TX | 903C | KERENS | TX |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.