NumberResearch Membership · Data 09/23/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/23/2026

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 845
VERIZON NEW YORK, INC. 159
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
— 845-623 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NANUET NY
— 845-624 6XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NANUET NY
— 845-626 1XXX6XXX8XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 KERHONKSON NY
— 845-627 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NANUET NY
— 845-628 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 MAHOPAC NY
— 845-634 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NEW CITY NY
— 845-635 0XXX6XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 PLEASATVLY NY
— 845-638 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NEW CITY NY
— 845-639 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NEW CITY NY
— 845-647 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 ELLENVILLE NY
— 845-657 0XXX1XXX3XXX4XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 SHOKAN NY
— 845-658 0XXX1XXX2XXX4XXX5XXX6XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 ROSENDALE NY
— 845-669 0XXX1XXX2XXX4XXX6XXX7XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 NORTHSALEM NY
— 845-677 4XXX which blocks → VERIZON NEW YORK, INC. 9104 MILLBROOK NY
— 845-679 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WOODSTOCK NY
— 845-680 6XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 PIERMONT NY
— 845-687 1XXX3XXX6XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 HIGH FALLS NY
— 845-688 0XXX1XXX3XXX4XXX6XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 PHOENICIA NY
— 845-691 0XXX1XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 HIGHLAND NY
— 845-708 5XXX9XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NEW CITY NY
— 845-724 0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → VERIZON NEW YORK, INC. 9104 NORTHCLOVE NY
— 845-727 3XXX5XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 NYACK NY
— 845-731 1XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 PEARLRIVER NY
— 845-732 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 PEARLRIVER NY
— 845-734 0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 PEEKSKILL NY
— 845-735 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 PEARLRIVER NY
— 845-737 2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 PEEKSKILL NY
— 845-739 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 PEEKSKILL NY
— 845-753 0XXX3XXX4XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 SLOATSBURG NY
— 845-759 9XXX which blocks → VERIZON NEW YORK, INC. 9104 SLOATSBURG NY
— 845-786 9XXX which blocks → VERIZON NEW YORK, INC. 9104 HAVERSTRAW NY
— 845-788 0XXX2XXX5XXX8XXX9XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 PEEKSKILL NY
— 845-791 0XXX3XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 MONTICELLO NY
— 845-794 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 MONTICELLO NY
— 845-795 0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → VERIZON NEW YORK, INC. 9104 MILTON NY
— 845-796 0XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 MONTICELLO NY
— 845-808 0XXX1XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 BREWSTER NY
— 845-831 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BEACON NY
— 845-832 1XXX2XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 WINGDALE NY
— 845-838 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BEACON NY
— 845-855 6XXX8XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 PAWLING NY
— 845-863 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 NEWBURGH NY
— 845-868 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → VERIZON NEW YORK, INC. 9104 STANFORDVL NY
— 845-877 0XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 DOVER PL NY
— 845-878 0XXX1XXX5XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 PATTERSON NY
— 845-883 0XXX2XXX3XXX4XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 CLINTONDL NY
— 845-887 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 6 holders which blocks → VERIZON NEW YORK, INC. 9104 CALLICOON NY
— 845-890 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 XXXXXXXXXX NY
— 845-896 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BEACON NY
— 845-897 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 BEACON NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.