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 COMMUNICATIONS, INC. - NC 25
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
2005-08-03 704-925 0–9 XXXall 10 · 6 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 KANNAPOLIS NC
2002-06-06 704-328 0–9 XXXwhole prefix which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 CHARLOTTE NC
2002-05-17 704-656 0–9 XXXwhole prefix which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 CHARLOTTE NC
— 704-216 1XXX4XXX · 2 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 SALISBURY NC
— 704-295 not yet reported which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 CHARLOTTE NC
— 704-439 6XXX7XXX8XXX · 2 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 DAVIDSON NC
— 704-478 1XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 LOWELL NC
— 704-479 1XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 LINCOLNTON NC
— 704-669 5XXX7XXX8XXX · 3 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 SHELBY NC
— 704-687 not yet reported which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 CHARLOTTE NC
— 704-688 7XXX8XXX which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 CHARLOTTE NC
— 704-698 5XXX6XXX7XXX8XXX which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 MONROE NC
— 704-714 not yet reported which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 CHARLOTTE NC
— 704-715 not yet reported which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 CHARLOTTE NC
— 704-716 not yet reported which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 CHARLOTTE NC
— 704-743 3XXX4XXX6XXX7XXX8XXX · 4 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 CONCORD NC
— 704-766 5XXX6XXX7XXX8XXX · 2 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 HUNTERSVL NC
— 704-781 1XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 LOCUST NC
— 704-809 1XXX5XXX6XXX · 3 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 DENVER NC
— 704-884 1XXX5XXX6XXX which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 GASTONIA NC
— 704-901 1XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 BELMONT NC
— 704-951 1XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 MOUNTHOLLY NC
— 704-971 not yet reported which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 CHARLOTTE NC
— 704-978 7XXX8XXX9XXX · 2 holders which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 STATESVL NC
— 704-979 4XXX which blocks → WINDSTREAM COMMUNICATIONS, INC. - NC 7970 HARRISBURG 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.