NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 21
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
— 812-836 none assigned yet which blocks → PERRY - SPENCER RURAL TELEPHONE COOP., INC. 0807 ST MARKS IN
— 812-837 2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → SMITHVILLE COMM., INC DBA SMITHVILLE TELEPHONE CO. 0818 LAKEMONROE IN
— 812-838 none assigned yet which blocks → INDIANA BELL TEL CO INC 9325 MT VERNON IN
— 812-839 none assigned yet which blocks → SOUTHEASTERN INDIANA RURAL TEL. COOP., INC. 0819 CANAAN IN
— 812-841 0XXX which blocks → METROPCS, INC. 5562 TERREHAUTE IN
— 812-842 1XXX6XXX7XXX8XXX which blocks → INDIANA BELL TEL CO INC 9325 NEWBURGH IN
— 812-843 none assigned yet which blocks → PERRY - SPENCER RURAL TELEPHONE COOP., INC. 0807 BANDON IN
— 812-845 5XXX which blocks → FRONTIER NORTH, INC. - IN 0779 CYNTHIANA IN
— 812-847 1XXX which blocks → INDIANA BELL TEL CO INC 9325 LINTON IN
— 812-849 not yet reported which blocks → FRONTIER NORTH, INC. - IN 0779 MITCHELL IN
— 812-851 none assigned yet which blocks → SMITHVILLE COMM., INC DBA SMITHVILLE TELEPHONE CO. 0818 GRIFFIN IN
— 812-852 not yet reported which blocks → SUNMAN TELECOMMUNICATIONS CORPORATION 0825 NAPOLEON IN
— 812-853 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 NEWBURGH IN
— 812-854 9XXX which blocks → FRONTIER NORTH, INC. - IN 0779 CRANE IN
— 812-855 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 BLOOMINGTN IN
— 812-856 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 BLOOMINGTN IN
— 812-857 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 BLOOMINGTN IN
— 812-858 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 NEWBURGH IN
— 812-859 2XXX6XXX · 2 holders which blocks → CLAY COUNTRY RURAL TEL COOP DBA ENDEAVOR COMM 0753 PATRICKSBG IN
— 812-860 not yet reported which blocks → PAETEC ITEL, LLC 829J CHANDLER IN
— 812-862 4XXX which blocks → SMITHVILLE COMM., INC DBA SMITHVILLE TELEPHONE CO. 0818 OWENSBURG IN
— 812-863 not yet reported which blocks → SMITHVILLE COMM., INC DBA SMITHVILLE TELEPHONE CO. 0818 OWENSBURG IN
— 812-864 0XXX1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 CORY IN
— 812-865 0XXX5XXX6XXX9XXX · 2 holders which blocks → FRONTIER NORTH, INC. - IN 0779 ORLEANS IN
— 812-866 0XXX which blocks → FRONTIER NORTH, INC. - IN 0779 HANOVER IN
— 812-867 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MCUTCHANVL IN
— 812-868 3XXX4XXX7XXX9XXX · 3 holders which blocks → INDIANA BELL TEL CO INC 9325 MCUTCHANVL IN
— 812-870 3XXX4XXX6XXX7XXX8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 TERREHAUTE IN
— 812-872 0XXX1XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 TERREHAUTE IN
— 812-873 not yet reported which blocks → SOUTHEASTERN INDIANA RURAL TEL. COOP., INC. 0819 SANJACINTO IN
— 812-874 1XXX4XXX6XXX7XXX9XXX · 4 holders which blocks → COMMUNICATIONS CORP. OF SOUTHERN IN 0809 POSEYVILLE IN
— 812-875 5XXX6XXX which blocks → FRONTIER NORTH, INC. - IN 0779 WORTHINGTN IN
— 812-876 not yet reported which blocks → SMITHVILLE COMM., INC DBA SMITHVILLE TELEPHONE CO. 0818 ELLETTSVL IN
— 812-877 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 TERREHAUTE IN
— 812-878 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TERREHAUTE IN
— 812-879 none assigned yet which blocks → SMITHVILLE COMM., INC DBA SMITHVILLE TELEPHONE CO. 0818 GOSPORT IN
— 812-881 2XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 VINCENNES IN
— 812-882 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 VINCENNES IN
— 812-883 not yet reported which blocks → FRONTIER NORTH, INC. - IN 0779 SALEM IN
— 812-884 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - IN 097D CHRISNEY IN
— 812-885 4XXX9XXX which blocks → INDIANA BELL TEL CO INC 9325 VINCENNES IN
— 812-886 8XXX which blocks → INDIANA BELL TEL CO INC 9325 VINCENNES IN
— 812-887 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VINCENNES IN
— 812-888 1XXX8XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 VINCENNES IN
— 812-889 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRONTIER NORTH, INC. - IN 0779 LEXINGTON IN
— 812-890 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 VINCENNES IN
— 812-891 1XXX2XXX4XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VINCENNES IN
— 812-892 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - IN 097D SANDRIDGE IN
— 812-893 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 EVANSVILLE IN
— 812-894 1XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 RILEY IN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.