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
— 219-762 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 PORTAGE IN
— 219-763 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 PORTAGE IN
— 219-764 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 PORTAGE IN
— 219-765 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CROWNPOINT IN
— 219-766 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 KOUTS IN
— 219-767 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 UNIONMILLS IN
— 219-769 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-770 not yet reported which blocks → SPOK, INC. 6630 CROWNPOINT IN
— 219-771 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTAGE IN
— 219-775 4XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CROWNPOINT IN
— 219-776 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CROWNPOINT IN
— 219-778 0XXX3XXX5XXX6XXX7XXX · 5 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 ROLLNGPRRI IN
— 219-779 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - IN 105F CROWNPOINT IN
— 219-781 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
— 219-783 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-785 0XXX8XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 WESTVILLE IN
— 219-787 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 PORTAGE IN
— 219-789 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
— 219-790 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 XXXXXXXXXX IN
— 219-791 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-792 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 GARY IN
— 219-793 none assigned yet which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-794 0XXX9XXX which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-795 0XXX2XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-796 0XXX8XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 MERRILLVL IN
— 219-797 0XXX1XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 HANNA IN
— 219-798 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GARY IN
— 219-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
— 219-814 2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → FBN INDIANA, INC. - IN 4117 MICHIGANCY IN
— 219-819 4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RENSSELAER IN
— 219-828 2XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF INDIANA, LLC 0832 SAN PIERRE IN
— 219-832 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D MICHIGANCY IN
— 219-836 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 HIGHLAND IN
— 219-838 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 HIGHLAND IN
— 219-841 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 PORTAGE IN
— 219-843 6XXX9XXX · 2 holders which blocks → BRIGHTSPEED OF INDIANA, LLC 0832 MEDARYVL IN
— 219-844 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 HAMMOND IN
— 219-845 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 HAMMOND IN
— 219-851 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 LA PORTE IN
— 219-852 7XXX8XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 HAMMOND IN
— 219-853 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 HAMMOND IN
— 219-861 none assigned yet which blocks → INDIANA BELL TEL CO INC 9325 MICHIGANCY IN
— 219-863 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 RENSSELAER IN
— 219-864 6XXX which blocks → INDIANA BELL TEL CO INC 9325 DYER IN
— 219-865 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 DYER IN
— 219-866 not yet reported which blocks → BRIGHTSPEED OF INDIANA, LLC 0832 RENSSELAER IN
— 219-869 6XXX7XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 RENSSELAER IN
— 219-871 none assigned yet which blocks → INDIANA BELL TEL CO INC 9325 MICHIGANCY IN
— 219-872 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MICHIGANCY IN
— 219-873 none assigned yet which blocks → INDIANA BELL TEL CO INC 9325 MICHIGANCY 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.