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 |
|---|---|---|---|---|---|---|
| — | 979-227 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | BELLVILLE | TX |
| — | 979-330 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | BAY CITY | TX |
| — | 979-428 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | BLNGNWGULF | TX |
| — | 979-432 | 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | GLEN FLORA | TX |
| — | 979-452 | 1XXX2XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | BEASLEY | TX |
| — | 979-457 | 1XXX2XXX4XXX5XXX6XXX7XXX · 6 holders which blocks → | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | DAMON | TX |
| — | 979-464 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | E BERNARD | TX |
| — | 979-469 | 1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | W COLUMBIA | TX |
| — | 979-473 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | WALLIS | TX |
| — | 979-474 | 4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | SWEENY | TX |
| — | 979-652 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | NEEDVILLE | 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.