NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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
CELLULAR SOUTH, INC. 39
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
2006-03-14 601-530 0–9 XXXall 10 · 5 holders which blocks → CELLULAR SOUTH, INC. 6581 LUCEDALE MS
2003-11-11 601-780 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → CELLULAR SOUTH, INC. 6581 CARTHAGE 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
2003-06-02 601-702 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → CELLULAR SOUTH, INC. 6581 PORTGIBSON MS
2003-05-09 601-674 2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → CELLULAR SOUTH, INC. 6581 COLUMBIA MS
2003-04-03 601-720 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 JACKSON MS
2002-08-06 601-596 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLULAR SOUTH, INC. 6581 HATTIESBG MS
2002-08-06 601-624 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 JACKSON MS
2002-07-12 601-575 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 PHILA MS
2002-06-06 601-337 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 PICAYUNE MS
2002-04-11 601-319 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 LAUREL MS
2002-02-07 601-551 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 MCCOMB MS
2001-11-08 601-934 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 MERIDIAN MS
2001-05-03 601-472 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 GLOSTER MS
2001-02-28 601-455 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 MONTICELLO MS
2001-01-03 601-382 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 MAGEE MS
— 601-218 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 VICKSBURG MS
— 601-248 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 MCCOMB MS
— 601-270 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 HATTIESBG MS
— 601-303 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 TYLERTOWN MS
— 601-357 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CELLULAR SOUTH, INC. 6581 NEWTONHKRY MS
— 601-408 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 HATTIESBG MS
— 601-410 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 WAYNESBORO MS
— 601-441 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 COLUMBIA MS
— 601-498 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 LAUREL MS
— 601-508 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 LUCEDALE MS
— 601-517 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 COLLINS MS
— 601-540 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 JACKSON MS
— 601-573 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 JACKSON MS
— 601-597 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 NATCHEZ MS
— 601-606 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 HATTIESBG MS
— 601-665 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLULAR SOUTH, INC. 6581 JACKSON MS
— 601-754 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 BROOKHAVEN MS
— 601-757 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 BROOKHAVEN MS
— 601-906 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 JACKSON MS
— 601-916 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 PICAYUNE MS
— 601-938 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 MERIDIAN MS
— 601-941 not yet reported which blocks → CELLULAR SOUTH, INC. 6581 JACKSON MS

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.