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 601
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 242
NEW CINGULAR WIRELESS PCS, LLC - GA 80
TELEPAK NETWORKS, INC. - MS 75
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 74
LEVEL 3 COMMUNICATIONS, LLC - MS 67
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
— 601-266 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 HATTIESBG MS
— 601-267 2XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 CARTHAGE MS
— 601-268 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 HATTIESBG MS
— 601-269 none assigned yet which blocks → BAY SPRINGS TEL. CO., INC. 0446 WHITE OAK MS
— 601-270 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 HATTIESBG MS
— 601-271 0XXX1XXX5XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 HATTIESBG MS
— 601-273 3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 PICAYUNE MS
— 601-274 3XXX4XXX8XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 QUITMAN MS
— 601-275 not yet reported which blocks → MS
— 601-276 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MCCOMB MS
— 601-277 0XXX2XXX5XXX6XXX7XXX8XXX which blocks → FRANKLIN TELEPHONE COMPANY, LLC 0454 BARLOW MS
— 601-278 3XXX4XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
— 601-279 not yet reported which blocks → FRANKLIN TELEPHONE COMPANY, LLC 0454 EAGLE LAKE MS
— 601-280 0XXX1XXX3XXX5XXX8XXX9XXX which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E BROOKHAVEN MS
— 601-281 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E CRYSTALSPG MS
— 601-282 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → POWERTEL MEMPHIS LICENSES, INC. 7474 MERIDIAN MS
— 601-283 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 LAUREL MS
— 601-284 none assigned yet which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E PHILA MS
— 601-285 none assigned yet which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E PICAYUNE MS
— 601-286 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J MERIDIAN MS
— 601-287 0–9 XXXall 10 · 6 holders which blocks → POWERTEL MEMPHIS LICENSES, INC. 7474 FOREST MS
— 601-288 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 HATTIESBG MS
— 601-289 none assigned yet which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E ROXIE MS
— 601-290 none assigned yet which blocks → ONVOY, LLC - MS 719E DE KALB MS
— 601-291 not yet reported which blocks → POWERTEL MEMPHIS LICENSES, INC. 7474 JACKSON MS
— 601-292 6XXX7XXX9XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 JACKSON MS
— 601-293 none assigned yet which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E COLUMBIA MS
— 601-294 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 MERIDIAN MS
— 601-295 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 WAYNESBORO MS
— 601-296 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 HATTIESBG MS
— 601-297 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 HATTIESBG MS
— 601-298 1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 CARTHAGE MS
— 601-299 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → METROPCS, INC. 5562 HATTIESBG MS
— 601-301 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 VICKSBURG MS
— 601-302 0XXX1XXX which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E CARTHAGE MS
— 601-303 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 TYLERTOWN MS
— 601-304 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 NATCHEZ MS
— 601-305 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E HATTIESBG MS
— 601-306 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 JACKSON MS
— 601-307 not yet reported which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 HATTIESBG MS
— 601-308 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 CRYSTALSPG MS
— 601-309 none assigned yet which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E GLOSTER MS
— 601-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX MS
— 601-312 none assigned yet which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E WIGGINS MS
— 601-313 9XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 JACKSON MS
— 601-314 none assigned yet which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E RICHTON MS
— 601-315 1XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 HATTIESBG MS
— 601-316 not yet reported which blocks → POWERTEL MEMPHIS LICENSES, INC. 7474 JACKSON MS
— 601-317 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 JACKSON MS
— 601-318 0XXX4XXX7XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 HATTIESBG MS

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.