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
2004-09-01 601-958 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 CROSSROADS MS
2004-08-27 601-988 2XXX3XXX4XXX5XXX7XXX8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
2004-07-02 601-476 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 WIGGINS MS
2004-07-02 601-803 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 TYLERTOWN MS
2004-06-08 601-348 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 PURVIS MS
2004-06-08 601-385 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 WIGGINS MS
2004-06-08 601-790 0–9 XXXall 10 · 9 holders which blocks → TEC OF JACKSON, INC. - MS 3704 MADISON MS
2004-04-29 601-837 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 COLLINS MS
2004-04-07 601-864 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 MORTON MS
2004-03-30 601-819 4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 WIGGINS MS
2004-03-08 601-522 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 COLUMBIA MS
2004-03-08 601-565 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 LIBERTY MS
2004-02-05 601-773 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 ROXIE MS
2004-02-05 601-779 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 WOODVILLE MS
2004-02-05 601-791 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 LUCEDALE MS
2004-01-14 601-767 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MS 5178 JACKSON MS
2003-12-04 601-300 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 GLOSTER MS
2003-11-11 601-474 not yet reported which blocks → TEC OF JACKSON, INC. - MS 3704 MERIDIAN MS
2003-11-11 601-780 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CELLULAR SOUTH, INC. 6581 CARTHAGE MS
2003-11-11 601-781 2XXX3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → POWERTEL MEMPHIS LICENSES, INC. 7474 PHILA MS
2003-11-11 601-808 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 MENDENHALL MS
2003-11-11 601-809 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 FAYETTE MS
2003-10-13 601-552 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 HAZLEHURST MS
2003-10-13 601-751 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 DE KALB MS
2003-10-13 601-755 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 WAYNESBORO MS
2003-10-13 601-756 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 MONTICELLO MS
2003-10-13 601-768 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 QUITMAN MS
2003-09-11 601-746 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 POPLARVL MS
2003-09-09 601-747 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 PORTGIBSON MS
2003-09-09 601-748 4XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 BROOKHAVEN MS
2003-08-06 601-738 3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 VICKSBURG MS
2003-08-06 601-741 0–9 XXXall 10 · 7 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 CARTHAGE MS
2003-08-06 601-742 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 FOREST MS
2003-07-02 601-406 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 MAGNOLIA MS
2003-07-02 601-716 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CELLULAR SOUTH, INC. 6581 WIGGINS MS
2003-07-02 601-717 4XXX5XXX6XXX8XXX · 3 holders which blocks → CELLULAR SOUTH, INC. 6581 HAZLEHURST MS
2003-06-02 601-219 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 CENTREVL MS
2003-06-02 601-673 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 LUCEDALE MS
2003-06-02 601-702 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → CELLULAR SOUTH, INC. 6581 PORTGIBSON MS
2003-05-09 601-340 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 LAUREL MS
2003-05-09 601-585 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 WIGGINS MS
2003-05-09 601-674 2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → CELLULAR SOUTH, INC. 6581 COLUMBIA MS
2003-05-09 601-719 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 ELLISVILLE MS
2003-05-09 601-721 2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → TELEPAK NETWORKS, INC. - MS 5278 MAGEE MS
2003-04-03 601-324 0XXX2XXX3XXX4XXX5XXX8XXX · 4 holders which blocks → POWERTEL MEMPHIS LICENSES, INC. 7474 MCCOMB MS
2003-04-03 601-685 1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 MERIDIAN MS
2003-04-03 601-699 1XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 LAUREL MS
2003-04-03 601-712 not yet reported which blocks → TELEPAK NETWORKS, INC. - MS 5278 COLLINS MS
2003-04-03 601-720 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 JACKSON MS
2003-03-06 601-658 0XXX1XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 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.