NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

3 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 — NPA 219
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
ONVOY, LLC - IN 1
NEW CINGULAR WIRELESS PCS, LLC - IL 1
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
— 219-644 4XXX which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-647 3XXX which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-648 0XXX2XXX3XXX · 3 holders which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-649 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-650 6XXX which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-655 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 WHITING IN
— 219-659 none assigned yet which blocks → INDIANA BELL TEL CO INC 9325 WHITING IN
— 219-660 7XXX8XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-661 6XXX7XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 CROWNPOINT IN
— 219-662 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 CROWNPOINT IN
— 219-663 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 CROWNPOINT IN
— 219-669 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CROWNPOINT IN
— 219-670 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HAMMOND IN
— 219-671 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CROWNPOINT IN
— 219-677 none assigned yet which blocks → METROPCS, INC. 5562 GARY IN
— 219-678 none assigned yet which blocks → T-MOBILE USA, INC. 6529 GARY IN
— 219-680 none assigned yet which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-681 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-682 0XXX1XXX2XXX3XXX · 3 holders which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-685 2XXX3XXX4XXX7XXX which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-688 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
— 219-689 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
— 219-690 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → INDIANA BELL TEL CO INC 9325 LOWELL IN
— 219-695 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 LOWELL IN
— 219-696 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 LOWELL IN
— 219-697 0XXX1XXX3XXX6XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 MOROCCO IN
— 219-700 not yet reported which blocks → IN
— 219-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
— 219-712 none assigned yet which blocks → METROPCS, INC. 5562 GARY IN
— 219-713 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
— 219-714 0XXX1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 MERRILLVL IN
— 219-716 5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTAGE IN
— 219-717 not yet reported which blocks → SPOK, INC. 6630 MERRILLVL IN
— 219-718 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MERRILLVL IN
— 219-730 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
— 219-733 3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 WANATAH IN
— 219-734 0XXX1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 PORTAGE IN
— 219-736 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-738 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-741 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
— 219-742 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
— 219-743 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
— 219-746 none assigned yet which blocks → METROPCS, INC. 5562 GARY IN
— 219-751 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-752 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-754 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 LA CROSSE IN
— 219-755 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-756 2XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-757 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-759 9XXX which blocks → FRONTIER NORTH, INC.. - IN 0772 WHEELER IN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.