NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/25/2026
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 |
|---|---|---|---|---|---|---|
| 2001-03-08 | 434-460 | 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | ALBERTA | VA |
| — | 434-246 | 0XXX7XXX9XXX · 3 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | STONYCREEK | VA |
| — | 434-248 | 0XXX1XXX2XXX3XXX4XXX7XXX8XXX · 5 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | PAMPLIN | VA |
| — | 434-252 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | EPPES FORK | VA |
| — | 434-336 | 2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | EMPORIA | VA |
| — | 434-348 | 7XXX which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | EMPORIA | VA |
| — | 434-352 | 1XXX6XXX · 2 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | APPOMATTOX | VA |
| — | 434-372 | 1XXX7XXX9XXX · 3 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | CHASE CITY | VA |
| — | 434-374 | 1XXX6XXX7XXX · 3 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | CLARKSVL | VA |
| — | 434-381 | 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 6 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | AMHERST | VA |
| — | 434-535 | 1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | JARRATT | VA |
| — | 434-542 | 0XXX1XXX2XXX3XXX6XXX7XXX8XXX · 6 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | CHRLTTCTHS | VA |
| — | 434-568 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | DRAKESBRCH | VA |
| — | 434-577 | 0XXX1XXX3XXX6XXX7XXX8XXX · 5 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | SOBRUNSWIK | VA |
| — | 434-634 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | EMPORIA | VA |
| — | 434-658 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | CAPRON | VA |
| — | 434-735 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | BARNESVL | VA |
| — | 434-736 | 1XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | KEYSVILLE | VA |
| — | 434-738 | 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | BOYDTON | VA |
| — | 434-848 | 5XXX7XXX · 2 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | LAWRENCEVL | VA |
| — | 434-922 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | ALLWOOD | VA |
| — | 434-933 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | GLADSTONE | VA |
| — | 434-946 | 3XXX4XXX6XXX8XXX · 4 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | AMHERST | VA |
| — | 434-949 | 1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | ALBERTA | VA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.