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 701
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 90
NEW CINGULAR WIRELESS PCS, LLC - IL 79
QWEST CORPORATION 71
MIDCONTINENT COMMUNICATIONS - ND 48
ONVOY, LLC - ND 40
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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 701-203 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - ND 8054 GRANDFORKS ND
— 701-204 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - ND 8054 BISMARCK ND
— 701-205 2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - ND 8054 FARGO ND
— 701-207 1XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTER ND
— 701-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX ND
— 701-220 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BISMARCK ND
— 701-221 not yet reported which blocks → QWEST CORPORATION 9631 BISMARCK ND
— 701-222 not yet reported which blocks → QWEST CORPORATION 9631 BISMARCK ND
— 701-223 not yet reported which blocks → QWEST CORPORATION 9631 BISMARCK ND
— 701-224 not yet reported which blocks → QWEST CORPORATION 9631 BISMARCK ND
— 701-225 not yet reported which blocks → QWEST CORPORATION 9631 DICKINSON ND
— 701-226 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 6568 BISMARCK ND
— 701-227 not yet reported which blocks → QWEST CORPORATION 9631 DICKINSON ND
— 701-228 none assigned yet which blocks → TURTLE MOUNTAIN COMMUN., INC. 1678 BOTTINEAU ND
— 701-229 not yet reported which blocks → POLAR COMMUN MUTUAL AID CORP. 1630 FORDVILLE ND
— 701-230 6XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 6568 DEVILSLAKE ND
— 701-231 not yet reported which blocks → QWEST CORPORATION 9631 FARGO ND
— 701-232 not yet reported which blocks → QWEST CORPORATION 9631 FARGO ND
— 701-234 not yet reported which blocks → QWEST CORPORATION 9631 FARGO ND
— 701-235 not yet reported which blocks → QWEST CORPORATION 9631 FARGO ND
— 701-237 1XXX which blocks → QWEST CORPORATION 9631 FARGO ND
— 701-238 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 6568 FARGO ND
— 701-239 not yet reported which blocks → QWEST CORPORATION 9631 FARGO ND
— 701-240 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 6568 MINOT ND
— 701-241 not yet reported which blocks → QWEST CORPORATION 9631 FARGO ND
— 701-242 not yet reported which blocks → RED RIVER RURAL TEL ASSN DBA RED RIVER COMM - ND 1631 HANKINSON ND
— 701-243 not yet reported which blocks → TURTLE MOUNTAIN COMMUN., INC. 1678 SOURIS ND
— 701-244 not yet reported which blocks → TURTLE MOUNTAIN COMMUN., INC. 1678 DUNSEITH ND
— 701-245 not yet reported which blocks → SRT COMMUNICATIONS, INC. 3303 WESTHOPE ND
— 701-246 not yet reported which blocks → TURTLE MOUNTAIN COMMUN., INC. 1678 ROLETTE ND
— 701-247 4XXX which blocks → POLAR COMMUN MUTUAL AID CORP. 1630 LAKOTA ND
— 701-248 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → QWEST CORPORATION 9631 MINTO ND
— 701-249 not yet reported which blocks → NORTH DAKOTA TELEPHONE CO. 1447 ESMOND ND
— 701-250 not yet reported which blocks → QWEST CORPORATION 9631 BISMARCK ND
— 701-251 0XXX4XXX8XXX · 2 holders which blocks → QWEST CORPORATION 9631 JAMESTOWN ND
— 701-252 not yet reported which blocks → QWEST CORPORATION 9631 JAMESTOWN ND
— 701-253 0XXX1XXX · 2 holders which blocks → QWEST CORPORATION 9631 JAMESTOWN ND
— 701-254 not yet reported which blocks → BEK COMMUNICATIONS COOPERATIVE 1604 LINTON ND
— 701-255 not yet reported which blocks → QWEST CORPORATION 9631 BISMARCK ND
— 701-256 none assigned yet which blocks → UNITED TEL. MUTUAL AID CORP. 1636 LANGDON ND
— 701-257 not yet reported which blocks → POLAR COMMUN MUTUAL AID CORP. 1630 ST THOMAS ND
— 701-258 not yet reported which blocks → QWEST CORPORATION 9631 BISMARCK ND
— 701-259 not yet reported which blocks → POLAR COMMUN MUTUAL AID CORP. 1630 MICHIGAN ND
— 701-260 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 6568 DICKINSON ND
— 701-261 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND 6568 FARGO ND
— 701-262 not yet reported which blocks → NORTH DAKOTA TELEPHONE CO. 1447 TOLNA ND
— 701-263 none assigned yet which blocks → SRT COMMUNICATIONS, INC. 3303 METIGOSHE ND
— 701-264 0XXX3XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → QWEST CORPORATION 9631 DICKINSON ND
— 701-265 none assigned yet which blocks → POLAR COMMUN MUTUAL AID CORP. 1630 CAVALIER ND
— 701-266 not yet reported which blocks → UNITED TEL. MUTUAL AID CORP. 1636 ROCK LAKE ND

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.