NumberResearch Membership · Data 09/22/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/22/2026

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 757
VERIZON VIRGINIA, INC. 220
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
— 757-519 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-521 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-523 3XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-531 5XXX6XXX7XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-533 1XXX2XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-538 6XXX7XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 SUFFOLK VA
— 757-539 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 SUFFOLK VA
— 757-543 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-545 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-552 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-554 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-557 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-558 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-564 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WILLIAMSBG VA
— 757-565 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WILLIAMSBG VA
— 757-566 5XXX6XXX7XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 TOANO VA
— 757-578 0XXX1XXX2XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-579 0XXX1XXX8XXX9XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-583 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-587 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-588 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-591 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
— 757-594 5XXX6XXX which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
— 757-595 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
— 757-596 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
— 757-597 1XXX3XXX4XXX5XXX6XXX8XXX which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
— 757-599 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
— 757-604 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 NWPTNWSZN3 VA
— 757-612 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-616 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-622 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-623 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-624 0XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-625 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-626 6XXX9XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-627 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-628 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-629 3XXX4XXX8XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-631 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-638 8XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-640 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-664 9XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-665 0XXX2XXX3XXX8XXX9XXX · 4 holders which blocks → VERIZON VIRGINIA, INC. 9213 PARKSLEY VA
— 757-667 0XXX1XXX8XXX9XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-668 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-670 0XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-671 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-677 0XXX1XXX5XXX6XXX · 4 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-678 1XXX2XXX3XXX4XXX6XXX8XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 EASTVILLE VA
— 757-680 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.