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
— 812-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX IN
— 812-213 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - IN 097D EVANSVILLE IN
— 812-214 0XXX1XXX2XXX3XXX4XXX5XXX7XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 MCUTCHANVL IN
— 812-215 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 PRINCETON IN
— 812-217 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOONVILLE IN
— 812-218 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 NEW ALBANY IN
— 812-219 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 BLOOMINGTN IN
— 812-220 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 8286 W HARRISON IN
— 812-221 1XXX2XXX3XXX4XXX5XXX9XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 LAWRENCEBG IN
— 812-223 1XXX3XXX4XXX5XXX7XXX8XXX which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TERREHAUTE IN
— 812-224 not yet reported which blocks → PAETEC ITEL, LLC 829J DALE IN
— 812-225 2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → POWERTEL KENTUCKY LICENSES, INC. 365C CORYDON IN
— 812-226 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - IN 4803 VEVAY IN
— 812-227 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLOOMFIELD IN
— 812-228 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → INDIANA BELL TEL CO INC 9325 EVANSVILLE IN
— 812-230 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 TERREHAUTE IN
— 812-231 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 TERREHAUTE IN
— 812-232 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 TERREHAUTE IN
— 812-233 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → YMAX COMMUNICATIONS CORP. - IN 352E TERREHAUTE IN
— 812-234 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 TERREHAUTE IN
— 812-235 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 TERREHAUTE IN
— 812-236 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TERREHAUTE IN
— 812-237 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 TERREHAUTE IN
— 812-238 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 TERREHAUTE IN
— 812-239 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TERREHAUTE IN
— 812-240 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 TERREHAUTE IN
— 812-241 5XXX7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TERREHAUTE IN
— 812-242 0XXX which blocks → FRONTIER NORTH, INC.. - IN 0772 TERREHAUTE IN
— 812-243 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 TERREHAUTE IN
— 812-244 1XXX3XXX9XXX · 3 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 TERREHAUTE IN
— 812-246 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 SELLERSBG IN
— 812-247 0XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → FRONTIER NORTH, INC. - IN 0779 SHOALS IN
— 812-248 1XXX3XXX5XXX6XXX8XXX · 5 holders which blocks → INDIANA BELL TEL CO INC 9325 SELLERSBG IN
— 812-249 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 TERREHAUTE IN
— 812-253 not yet reported which blocks → PAETEC ITEL, LLC 829J EVANSVILLE IN
— 812-254 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 WASHINGTON IN
— 812-256 none assigned yet which blocks → INDIANA BELL TEL CO INC 9325 CHARLESTN IN
— 812-257 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 WASHINGTON IN
— 812-258 1XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → INDIANA BELL TEL CO INC 9325 NEW ALBANY IN
— 812-259 3XXX6XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WASHINGTON IN
— 812-261 2XXX3XXX4XXX6XXX7XXX8XXX · 3 holders which blocks → NUSO, LLC 551G TERREHAUTE IN
— 812-262 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 TERREHAUTE IN
— 812-263 0–9 XXXall 10 · 2 holders which blocks → FRONTIER NORTH, INC.. - IN 0772 TERREHAUTE IN
— 812-264 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 TERREHAUTE IN
— 812-265 not yet reported which blocks → FRONTIER NORTH, INC. - IN 0779 MADISON IN
— 812-266 0–9 XXXall 10 · 5 holders which blocks → POWERTEL KENTUCKY LICENSES, INC. 365C EVANSVILLE IN
— 812-268 not yet reported which blocks → FRONTIER NORTH, INC.. - IN 0772 SULLIVAN IN
— 812-269 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - IN 105F BLOOMINGTN IN
— 812-271 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - IN 097D SEYMOUR IN
— 812-272 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLOOMINGTN 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.