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
— 757-423 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-424 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-425 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-428 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-431 7XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-437 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-440 3XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-441 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-442 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 BELLEHAVEN VA
— 757-443 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-444 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-445 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-446 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-451 5XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-455 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-456 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-459 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-460 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-461 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-462 0XXX6XXX9XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-463 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-464 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-465 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-466 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-467 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-471 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-473 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-474 5XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-475 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-479 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-480 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-481 8XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-483 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-484 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-485 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-486 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-487 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-488 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
— 757-489 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-490 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-491 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-493 1XXX3XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-494 6XXX which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-495 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-496 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-497 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-498 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-499 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-502 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
— 757-518 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.