NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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 434
VERIZON VIRGINIA, INC. 42
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 434-237 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-239 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-263 0XXX2XXX3XXX9XXX · 4 holders which blocks → VERIZON VIRGINIA, INC. 9213 LOVINGSTON VA
— 434-277 0XXX1XXX2XXX3XXX4XXX6XXX7XXX · 5 holders which blocks → VERIZON VIRGINIA, INC. 9213 PINEYRIVER VA
— 434-299 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 5 holders which blocks → VERIZON VIRGINIA, INC. 9213 BIG ISLAND VA
— 434-316 2XXX3XXX4XXX8XXX which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-325 0XXX3XXX5XXX6XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 LOVINGSTON VA
— 434-361 3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 LOVINGSTON VA
— 434-384 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-385 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-386 1XXX7XXX8XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-432 6XXX which blocks → VERIZON VIRGINIA, INC. 9213 CHATHAM VA
— 434-433 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → VERIZON VIRGINIA, INC. 9213 CHATHAM VA
— 434-454 0XXX1XXX3XXX5XXX8XXX · 4 holders which blocks → VERIZON VIRGINIA, INC. 9213 CLOVER VA
— 434-522 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-525 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-528 7XXX which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-534 1XXX2XXX3XXX4XXX5XXX7XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-544 0XXX1XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-582 0XXX9XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-592 0XXX1XXX8XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-766 3XXX which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-773 3XXX which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-791 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-792 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-793 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-797 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-799 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-821 7XXX8XXX which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-822 3XXX which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-832 9XXX which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-835 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-836 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-845 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-846 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-847 9XXX which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-856 1XXX2XXX6XXX9XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-929 7XXX which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-947 0XXX which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-948 0XXX2XXX6XXX8XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 LYNCHBURG VA
— 434-954 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 DANVILLE VA
— 434-993 0XXX1XXX4XXX5XXX6XXX8XXX · 5 holders which blocks → VERIZON VIRGINIA, INC. 9213 CONCORD VA

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.