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
— 260-460 0XXX7XXX which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-461 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-463 none assigned yet which blocks → BRIGHTSPEED OF INDIANA, LLC 0832 LAGRANGE IN
— 260-466 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORT WAYNE IN
— 260-467 0XXX3XXX6XXX7XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-468 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → FRONTIER MIDSTATES, INC. - IN 0831 RESERVOIR IN
— 260-469 not yet reported which blocks → COMMUNICATIONS VENTURE CORP DBA INDIGITAL TELECOM 4169 FORT WAYNE IN
— 260-470 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-471 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-475 0XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 PLEASANTLK IN
— 260-478 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-479 0XXX5XXX7XXX8XXX9XXX which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-480 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-481 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 260-482 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 FORT WAYNE IN
— 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
— 260-494 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 FORT WAYNE 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
— 260-499 7XXX which blocks → BRIGHTSPEED OF INDIANA, LLC 0832 LAGRANGE IN
— 260-502 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAWAKA IN
— 260-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
— 260-519 4XXX6XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUNTINGTON IN
— 260-525 3XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BERNE IN
— 260-530 0XXX3XXX5XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUNTINGTON IN
— 260-541 1XXX4XXX6XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CORUNNA IN
— 260-543 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → FRONTIER MIDSTATES, INC. - IN 0831 UNIONDALE IN
— 260-544 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 KENDALLVL IN
— 260-547 1XXX2XXX5XXX7XXX · 3 holders which blocks → BRIGHTSPEED OF INDIANA, LLC 0832 PREBLE IN
— 260-553 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GARRETT IN
— 260-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST IN
— 260-557 0XXX1XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORT WAYNE IN
— 260-560 0–9 XXXall 10 · 6 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J WABASH IN
— 260-562 not yet reported which blocks → BRIGHTSPEED OF INDIANA, LLC 0832 HOWE IN
— 260-563 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 WABASH IN
— 260-564 2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALBION IN
— 260-565 not yet reported which blocks → CRAIGVILLE TEL. CO., INC. 0756 CRAIGVILLE IN
— 260-567 not yet reported which blocks → IN
— 260-568 5XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WABASH IN
— 260-569 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 WABASH 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.