NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 812
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 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
— 812-634 8XXX which blocks → FRONTIER NORTH, INC. - IN 0779 JASPER IN
— 812-636 1XXX2XXX3XXX5XXX6XXX9XXX · 6 holders which blocks → BRIGHTSPEED OF SOUTHERN INDIANA, LLC 0801 ODON IN
— 812-637 7XXX which blocks → CINCINNATI BELL 9348 W HARRISON IN
— 812-639 4XXX5XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 JASPER IN
— 812-644 not yet reported which blocks → DAVIESS MARTIN CTY RURL TEL DBA RTC COMMUNICATIONS 0759 ALFOVLGNDL IN
— 812-647 0XXX1XXX2XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 EVANSVILLE IN
— 812-648 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → INDIANA BELL TEL CO INC 9325 DUGGER IN
— 812-649 0XXX1XXX3XXX7XXX8XXX · 4 holders which blocks → INDIANA BELL TEL CO INC 9325 ROCKPORT IN
— 812-654 0XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → FRONTIER NORTH, INC. - IN 0779 MILAN IN
— 812-656 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → CINCINNATI BELL 9348 W HARRISON IN
— 812-658 7XXX which blocks → SMITHVILLE COMM., INC DBA SMITHVILLE TELEPHONE CO. 0818 LYONS IN
— 812-659 not yet reported which blocks → SMITHVILLE COMM., INC DBA SMITHVILLE TELEPHONE CO. 0818 LYONS IN
— 812-661 0XXX2XXX3XXX6XXX7XXX8XXX · 3 holders which blocks → METROPCS, INC. 5562 JASPER IN
— 812-662 none assigned yet which blocks → FRONTIER NORTH, INC. - IN 0779 GREENSBURG IN
— 812-663 not yet reported which blocks → FRONTIER NORTH, INC. - IN 0779 GREENSBURG IN
— 812-665 0XXX1XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → INDIANA BELL TEL CO INC 9325 JASONVILLE IN
— 812-667 9XXX which blocks → SOUTHEASTERN INDIANA RURAL TEL. COOP., INC. 0819 CROSS PL IN
— 812-673 1XXX2XXX7XXX9XXX · 3 holders which blocks → COMMUNICATIONS CORP. OF SOUTHERN IN 0809 WADESVILLE IN
— 812-674 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 WASHINGTON IN
— 812-678 0XXX1XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC. - IN 0779 DUBOIS IN
— 812-680 1XXX2XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SEYMOUR IN
— 812-682 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → INDIANA BELL TEL CO INC 9325 NEWHARMONY IN
— 812-683 not yet reported which blocks → FRONTIER NORTH, INC. - IN 0779 HUNTINGBG IN
— 812-685 8XXX which blocks → COMMUNICATIONS CORP. OF INDIANA 0776 WICKLIFFE IN
— 812-687 not yet reported which blocks → DAVIESS MARTIN CTY RURL TEL DBA RTC COMMUNICATIONS 0759 PLAINVILLE IN
— 812-688 not yet reported which blocks → INDIANA PAGING NETWORK, INC. 6795 BLOOMINGTN IN
— 812-689 9XXX which blocks → FRONTIER NORTH, INC. - IN 0779 VERSAILLES IN
— 812-692 2XXX4XXX6XXX8XXX · 3 holders which blocks → COMMUNICATIONS CORP. OF SOUTHERN IN 0809 ELNORA IN
— 812-694 3XXX4XXX6XXX9XXX · 3 holders which blocks → S & W TEL. CO., INC. 0816 SANDBORN IN
— 812-695 0XXX1XXX · 2 holders which blocks → FRONTIER NORTH, INC. - IN 0779 HAYSVILLE IN
— 812-696 6XXX7XXX9XXX · 2 holders which blocks → FRONTIER NORTH, INC. - IN 0779 FARMERSBG IN
— 812-700 not yet reported which blocks → IN
— 812-705 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 CORYDON IN
— 812-707 0XXX2XXX3XXX4XXX7XXX8XXX · 2 holders which blocks → METROPCS, INC. 5562 SEYMOUR IN
— 812-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
— 812-714 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - IN 097D SPENCER IN
— 812-721 0XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC. - IN 0779 SPURGEON IN
— 812-723 6XXX8XXX · 2 holders which blocks → FRONTIER NORTH, INC. - IN 0779 PAOLI IN
— 812-724 0XXX7XXX · 2 holders which blocks → FRONTIER NORTH, INC. - IN 0779 OWENSVILLE IN
— 812-726 0XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC. - IN 0779 FRITCHTON IN
— 812-727 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → NUSO, LLC 551G BLOOMINGTN IN
— 812-729 0XXX9XXX · 2 holders which blocks → FRONTIER NORTH, INC. - IN 0779 OWENSVILLE IN
— 812-732 0XXX2XXX3XXX6XXX7XXX9XXX · 2 holders which blocks → FRONTIER NORTH, INC. - IN 0779 CENTRAL IN
— 812-734 4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC. - IN 0779 CORYDON IN
— 812-735 1XXX6XXX7XXX · 2 holders which blocks → FRONTIER NORTH, INC. - IN 0779 BICKNELL IN
— 812-736 2XXX which blocks → METROPCS, INC. 5562 CORYDON IN
— 812-737 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC. - IN 0779 LACONIA IN
— 812-738 not yet reported which blocks → FRONTIER NORTH, INC. - IN 0779 CORYDON IN
— 812-739 0XXX1XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC. - IN 0779 LEAVENWTH IN
— 812-740 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 XXXXXXXXXX IN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.