NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026
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.
Most active assignees, all time — NPA 703
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| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2005-10-19 | 703-985 | 0–9 XXXwhole prefix which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | TRIANGLE | VA |
| — | 703-221 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | TRIANGLE | VA |
| — | 703-257 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-260 | 1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | DULLESMTRO | VA |
| — | 703-327 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | ARCOLA | VA |
| — | 703-330 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-331 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-335 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-361 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-365 | 3XXX which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-366 | 9XXX which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-367 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-368 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-369 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-392 | 2XXX which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-393 | 5XXX which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-396 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-441 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | TRIANGLE | VA |
| — | 703-445 | 2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | TRIANGLE | VA |
| — | 703-446 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | LORTON | VA |
| — | 703-490 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | OCCOQUAN | VA |
| — | 703-491 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | OCCOQUAN | VA |
| — | 703-492 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | OCCOQUAN | VA |
| — | 703-493 | 0XXX1XXX which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | LORTON | VA |
| — | 703-494 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | OCCOQUAN | VA |
| — | 703-495 | 2XXX3XXX4XXX5XXX7XXX · 2 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | LORTON | VA |
| — | 703-497 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | OCCOQUAN | VA |
| — | 703-499 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | OCCOQUAN | VA |
| — | 703-530 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-551 | 3XXX which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | LORTON | VA |
| — | 703-572 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | DULLESMTRO | VA |
| — | 703-580 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | DALE CITY | VA |
| — | 703-583 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | DALE CITY | VA |
| — | 703-590 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | DALE CITY | VA |
| — | 703-594 | 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | NOKESVILLE | VA |
| — | 703-630 | 9XXX which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | TRIANGLE | VA |
| — | 703-632 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | TRIANGLE | VA |
| — | 703-634 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | TRIANGLE | VA |
| — | 703-640 | 3XXX4XXX8XXX · 2 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | TRIANGLE | VA |
| — | 703-643 | 4XXX9XXX which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | LORTONMTRO | VA |
| — | 703-661 | 9XXX which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | DULLES | VA |
| — | 703-670 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | DALE CITY | VA |
| — | 703-680 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | DALE CITY | VA |
| — | 703-690 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | LORTON | VA |
| — | 703-730 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | DALE CITY | VA |
| — | 703-753 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | HAYMARKET | VA |
| — | 703-754 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | HAYMARKET | VA |
| — | 703-791 | 1XXX9XXX · 2 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | INDENDNTHL | VA |
| — | 703-792 | not yet reported which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | MANASSAS | VA |
| — | 703-794 | 2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | INDENDNTHL | VA |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.