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 612
8X8, INC. 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
— 612-384 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-385 0XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-386 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-387 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-388 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-390 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 CAMBRIDGE MN
— 612-392 9XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - MN 5256 TWINCITIES MN
— 612-395 4XXX which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 612-396 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-397 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 612-399 6XXX9XXX which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 612-408 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MN
— 612-412 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
— 612-414 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-415 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 TWINCITIES MN
— 612-418 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
— 612-419 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
— 612-436 not yet reported which blocks → ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 4139 TWINCITIES MN
— 612-437 4XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
— 612-455 3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 4139 TWINCITIES MN
— 612-456 0–9 XXXall 10 · 4 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-462 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-480 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 TWINCITIES MN
— 612-481 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-483 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-486 2XXX which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - MN 8405 TWINCITIES MN
— 612-490 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-499 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
— 612-501 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-507 not yet reported which blocks → MN
— 612-508 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
— 612-510 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 TWINCITIES MN
— 612-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MN
— 612-516 0–9 XXXall 10 · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
— 612-518 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
— 612-520 1XXX5XXX7XXX · 3 holders which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 612-521 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 612-522 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 612-524 5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MN 7783 TWINCITIES MN
— 612-526 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 TWINCITIES MN
— 612-527 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 TWINCITIES MN
— 612-529 not yet reported which blocks → QWEST CORPORATION 9631 TWINCITIES MN
— 612-530 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 TWINCITIES MN
— 612-532 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 TWINCITIES MN
— 612-534 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 TWINCITIES MN
— 612-538 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 TWINCITIES MN
— 612-539 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 TWINCITIES MN
— 612-547 6XXX8XXX9XXX which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
— 612-548 0XXX1XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MN 5256 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.