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
— 601-626 2XXX3XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MERIDIAN MS
— 601-629 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 VICKSBURG MS
— 601-630 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 VICKSBURG MS
— 601-631 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 VICKSBURG MS
— 601-632 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 TOOMSUBA MS
— 601-634 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 VICKSBURG MS
— 601-635 not yet reported which blocks → DECATUR TEL. CO., INC. 0451 DECATUR MS
— 601-636 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 VICKSBURG MS
— 601-638 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 VICKSBURG MS
— 601-639 none assigned yet which blocks → FRANKLIN TELEPHONE COMPANY, LLC 0454 CROSBY MS
— 601-641 3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 COLLINS MS
— 601-642 1XXX2XXX3XXX4XXX6XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VICKSBURG MS
— 601-643 1XXX3XXX4XXX6XXX7XXX9XXX · 5 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 WESSON MS
— 601-644 4XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MERIDIAN MS
— 601-645 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 CENTREVL MS
— 601-646 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 NEWTONHKRY MS
— 601-648 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BUCKATUNNA MS
— 601-649 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LAUREL MS
— 601-650 2XXX4XXX5XXX · 3 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 PHILA MS
— 601-654 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 CARTHAGE MS
— 601-655 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MERIDIAN MS
— 601-656 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 PHILA MS
— 601-657 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LIBERTY MS
— 601-659 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 ENTERPRISE MS
— 601-660 9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 NATCHEZ MS
— 601-661 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 VICKSBURG MS
— 601-663 2XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 PHILA MS
— 601-664 8XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 JACKSON MS
— 601-665 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLULAR SOUTH, INC. 6581 JACKSON MS
— 601-666 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - MS 719E NEWTONHKRY MS
— 601-668 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
— 601-670 none assigned yet which blocks → BAY SPRINGS TEL. CO., INC. 0446 BAYSPRINGS MS
— 601-671 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 WAYNESBORO MS
— 601-672 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON MS
— 601-677 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 LYNVILLE MS
— 601-678 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MERIDIAN MS
— 601-679 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 NVALAIRSTA MS
— 601-681 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 BRIARWOOD MS
— 601-683 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 NEWTONHKRY MS
— 601-684 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MCCOMB MS
— 601-686 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 MERIDIAN MS
— 601-687 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 SHUBUTA MS
— 601-688 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 LUMBERTON MS
— 601-689 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 RICHTON MS
— 601-691 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - MS 992E CANTON MS
— 601-692 none assigned yet which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MERIDIAN MS
— 601-693 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MERIDIAN MS
— 601-694 0XXX6XXX which blocks → FRANKLIN TELEPHONE COMPANY, LLC 0454 NEW HEBRON MS
— 601-696 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 MERIDIAN MS
— 601-697 3XXX5XXX6XXX7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 6396 FOREST 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.