NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 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, all time — NPA 651
QWEST CORPORATION 186
AERIAL COMMUNICATIONS, INC. 66
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 47
ONVOY, LLC - MN 32
LEVEL 3 COMMUNICATIONS, LLC - MN 19
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
2002-11-04 651-324 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2002-10-22 651-472 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MN 5256 STILLWATER MN
2002-05-21 651-341 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2002-04-15 651-340 not yet reported which blocks → COMCAST IP PHONE, LLC 318J TWINCITIES MN
2002-02-13 651-343 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2002-01-02 651-269 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2001-12-17 651-331 0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-10-08 651-789 not yet reported which blocks → ONVOY, LLC - MN 184D TWINCITIES MN
2001-10-02 651-330 not yet reported which blocks → COMCAST IP PHONE, LLC 318J TWINCITIES MN
2001-09-12 651-689 3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J STILLWATER MN
2001-08-06 651-305 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → LEVEL 3 TELECOM OF MINNESOTA, LLC - MN 5312 TWINCITIES MN
2001-07-18 651-492 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TWINCITIES MN
2001-06-15 651-755 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-05-23 651-309 3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MN 5256 RED WING MN
2001-04-25 651-491 8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 STILLWATER MN
2001-04-10 651-206 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-04-09 651-487 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
2001-04-09 651-488 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
2001-04-09 651-489 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
2001-04-09 651-558 1XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → QWEST CORPORATION 9631 TWINCITIES MN
2001-02-22 651-308 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2001-01-25 651-442 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
2001-01-05 651-675 6XXX7XXX8XXX9XXX which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-201 not yet reported which blocks → ONVOY, LLC - MN 184D TWINCITIES MN
— 651-203 8XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
— 651-204 8XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
— 651-205 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-207 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-208 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 651-209 5XXX7XXX9XXX · 2 holders which blocks → ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 4139 TWINCITIES MN
— 651-210 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 651-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MN
— 651-213 3XXX7XXX9XXX · 3 holders which blocks → CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN 1123 LINDSTROM MN
— 651-214 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 651-215 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-216 2XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 651-217 0XXX1XXX3XXX8XXX · 3 holders which blocks → ONVOY, LLC - MN 184D STCROIXBCH MN
— 651-218 not yet reported which blocks → MN
— 651-220 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-221 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-222 9XXX which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-223 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-224 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-225 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-226 2XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 651-227 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-228 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-229 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 651-230 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 651-231 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN

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.