NumberResearch Membership · Data 09/21/2026

Recent prefix assignments

338 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026

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, last 30 days
8X8, INC. 38
NEW CINGULAR WIRELESS PCS, LLC - IL 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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
— 716-664 not yet reported which blocks → WINDSTREAM NEW YORK, INC. - JAMESTOWN 0109 JAMESTOWN NY
— 716-665 not yet reported which blocks → WINDSTREAM NEW YORK, INC. - JAMESTOWN 0109 JAMESTOWN NY
— 716-666 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC- NY 384C GOWANDA NY
— 716-667 4XXX8XXX which blocks → VERIZON NEW YORK, INC. 9104 ORCHARD PK NY
— 716-668 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WESTSENECA NY
— 716-672 none assigned yet which blocks → DUNKIRK & FREDONIA TEL. CO. 0091 FREDONIA NY
— 716-673 none assigned yet which blocks → DUNKIRK & FREDONIA TEL. CO. 0091 FREDONIA NY
— 716-674 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WESTSENECA NY
— 716-675 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WESTSENECA NY
— 716-676 0XXX1XXX4XXX6XXX7XXX8XXX · 6 holders which blocks → VERIZON NEW YORK, INC. 9104 FRANKLINVL NY
— 716-677 1XXX which blocks → VERIZON NEW YORK, INC. 9104 WESTSENECA NY
— 716-678 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WESTSENECA NY
— 716-679 none assigned yet which blocks → DUNKIRK & FREDONIA TEL. CO. 0091 FREDONIA NY
— 716-680 none assigned yet which blocks → DUNKIRK & FREDONIA TEL. CO. 0091 FREDONIA NY
— 716-681 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 LANCASTER NY
— 716-683 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 LANCASTER NY
— 716-684 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 LANCASTER NY
— 716-685 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 LANCASTER NY
— 716-686 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 LANCASTER NY
— 716-687 0XXX7XXX8XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 EASTAURORA NY
— 716-688 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-689 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 WILLIAMSVL NY
— 716-690 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 TONAWANDA NY
— 716-691 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 TONAWANDA NY
— 716-692 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 TONAWANDA NY
— 716-693 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 TONAWANDA NY
— 716-694 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 TONAWANDA NY
— 716-695 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 TONAWANDA NY
— 716-696 0XXX2XXX which blocks → VERIZON NEW YORK, INC. 9104 TONAWANDA NY
— 716-698 6XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BUFFALO NY
— 716-699 0XXX1XXX3XXX6XXX7XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 ELLICOTTVL NY
— 716-700 not yet reported which blocks → NY
— 716-701 0XXX3XXX4XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J OLEAN NY
— 716-706 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 LANCASTER NY
— 716-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 716-712 3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J WESTSENECA NY
— 716-713 0XXX1XXX2XXX6XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BUFFALO NY
— 716-714 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 EASTAURORA NY
— 716-727 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC- NY 384C LOCKPORT NY
— 716-730 0–9 XXXall 10 · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 WILLIAMSVL NY
— 716-731 not yet reported which blocks → CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY 0096 SANBORN NY
— 716-735 0XXX1XXX2XXX4XXX5XXX8XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 MIDDLEPORT NY
— 716-736 not yet reported which blocks → CHAUTAUQUA & ERIE TEL. CORP. 0078 RIPLEY NY
— 716-740 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → ONVOY, LLC- NY 384C ORCHARD PK NY
— 716-741 6XXX which blocks → VERIZON NEW YORK, INC. 9104 CLARENCCTR NY
— 716-743 6XXX which blocks → VERIZON NEW YORK, INC. 9104 TONAWANDA NY
— 716-744 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 TONAWANDA NY
— 716-745 0XXX1XXX2XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → VERIZON NEW YORK, INC. 9104 YOUNGSTOWN NY
— 716-751 0XXX1XXX2XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → VERIZON NEW YORK, INC. 9104 WILSON NY
— 716-753 none assigned yet which blocks → CHAUTAUQUA & ERIE TEL. CORP. 0078 MAYVILLE NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.