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 337
BRIGHTSPEED OF LOUISIANA, LLC 33
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
2007-10-30 337-749 2XXX3XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 REEVES LA
— 337-228 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 HENDERSON LA
— 337-332 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 BREAUX BDG LA
— 337-360 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 VL PLATTE LA
— 337-363 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 VL PLATTE LA
— 337-432 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 BASILE LA
— 337-461 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 TURKEY CRK LA
— 337-468 1XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 MAMOU LA
— 337-506 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 VL PLATTE LA
— 337-507 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 BREAUX BDG LA
— 337-582 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 IOWA LA
— 337-584 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 ELTON LA
— 337-587 3XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 THORNWELL LA
— 337-588 7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 LACASSINE LA
— 337-599 8XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 PINEPRAIRI LA
— 337-622 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 HAYES LA
— 337-639 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 OBERLIN LA
— 337-662 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 SUNSET LA
— 337-666 4XXX6XXX7XXX · 3 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 REEVES LA
— 337-667 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 CECELIA LA
— 337-668 8XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 CANKTON LA
— 337-684 8XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 CHURCH PT LA
— 337-725 7XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 RAGLEY LA
— 337-734 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 WELSH LA
— 337-738 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 KINDER LA
— 337-743 8XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 STARKS LA
— 337-753 3XXX4XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 ROANOKE LA
— 337-754 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 ARNAUDVL LA
— 337-756 4XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 FENTON LA
— 337-779 7XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 IOTA LA
— 337-786 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 DE QUINCY LA
— 337-845 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 PARKS LA
— 337-885 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 CHATAIGNIR LA

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.