NumberResearch Membership · Data 09/21/2026

Recent prefix assignments

0 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, all time — NPA 260
FRONTIER NORTH, INC.. - IN 94
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
— 260-483 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-484 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-485 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-486 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-487 1XXX which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-488 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 HAMILTON IN
— 260-489 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-490 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-492 3XXX which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-493 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 NEW HAVEN IN
— 260-495 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FREMONT IN
— 260-496 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-497 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-563 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 WABASH IN
— 260-569 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 WABASH IN
— 260-619 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 HUNTERTOWN IN
— 260-623 0XXX1XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 MONROEVL IN
— 260-624 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 ANGOLA IN
— 260-627 1XXX4XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 LEO IN
— 260-632 2XXX3XXX6XXX7XXX8XXX · 4 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 WOODBURN IN
— 260-635 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 KIMMELL IN
— 260-636 0XXX8XXX9XXX · 2 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 ALBION IN
— 260-637 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 HUNTERTOWN IN
— 260-639 1XXX2XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 POE HOAGLD IN
— 260-657 0XXX2XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 HARLAN IN
— 260-665 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 ANGOLA IN
— 260-667 1XXX3XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 ANGOLA IN
— 260-668 none assigned yet which blocks → FRONTIER NORTH, INC.. - IN 0772 ANGOLA IN
— 260-672 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 ROANOKE IN
— 260-673 4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 ROANOKE IN
— 260-676 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 ROANOKE IN
— 260-693 4XXX7XXX8XXX · 3 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 CHURUBUSCO IN
— 260-744 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-745 6XXX which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-747 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-748 0XXX1XXX2XXX3XXX8XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 NEW HAVEN IN
— 260-749 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 NEW HAVEN IN
— 260-761 6XXX7XXX8XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 WAWAKA IN
— 260-829 0XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 ORLAND IN
— 260-833 7XXX which blocks → FRONTIER NORTH, INC.. - IN 0772 POKAGON IN
— 260-837 0XXX1XXX · 2 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 WATERLOO IN
— 260-839 2XXX6XXX7XXX8XXX · 3 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 SIDNEY IN
— 260-868 3XXX4XXX7XXX · 2 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 BUTLER IN
— 260-982 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 NOMANCHETR IN

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.