NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 704
WINDSTREAM CONCORD TELEPHONE, LLC 46
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
2006-07-05 704-403 0–9 XXXwhole prefix which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
2004-02-13 704-260 0–9 XXXwhole prefix which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-250 0–9 XXXwhole prefix which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 KANNAPOLIS NC
— 704-262 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-422 1XXX4XXX8XXX · 3 holders which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 BADIN NC
— 704-436 1XXX4XXX · 2 holders which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 MTPLEASANT NC
— 704-454 2XXX3XXX8XXX · 2 holders which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 HARRISBURG NC
— 704-455 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 HARRISBURG NC
— 704-456 1XXX2XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 HARRISBURG NC
— 704-463 8XXX which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 NEW LONDON NC
— 704-485 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 OAKBORO NC
— 704-486 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 OAKBORO NC
— 704-652 1XXX2XXX8XXX which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-720 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-721 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-722 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-723 none assigned yet which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-782 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-783 none assigned yet which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-784 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-785 none assigned yet which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-786 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-788 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-789 none assigned yet which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-792 none assigned yet which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-793 none assigned yet which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-794 none assigned yet which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-795 none assigned yet which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-855 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CHNGRVLNDS NC
— 704-856 3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CHNGRVLNDS NC
— 704-857 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CHNGRVLNDS NC
— 704-859 0XXX1XXX2XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CHNGRVLNDS NC
— 704-920 0XXX8XXX9XXX which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 CONCORD NC
— 704-932 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 KANNAPOLIS NC
— 704-933 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 KANNAPOLIS NC
— 704-934 1XXX which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 KANNAPOLIS NC
— 704-935 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 KANNAPOLIS NC
— 704-938 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 KANNAPOLIS NC
— 704-939 8XXX which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 KANNAPOLIS NC
— 704-961 2XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 ALBEMARLE NC
— 704-982 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 ALBEMARLE NC
— 704-983 not yet reported which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 ALBEMARLE NC
— 704-984 none assigned yet which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 ALBEMARLE NC
— 704-985 none assigned yet which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 ALBEMARLE NC
— 704-986 none assigned yet which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 ALBEMARLE NC
— 704-991 7XXX which blocks → WINDSTREAM CONCORD TELEPHONE, LLC 0474 ALBEMARLE NC

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.