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 318
BRIGHTSPEED OF LOUISIANA, LLC 34
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
— 318-223 3XXX5XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 RODESSA LA
— 318-244 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 OAK RIDGE LA
— 318-246 4XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 HEBRON LA
— 318-248 1XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 MANGHAM LA
— 318-249 5XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 CHATHAM LA
— 318-258 2XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 ATHENS LA
— 318-284 5XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 IDA LA
— 318-287 6XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 HOSSTON LA
— 318-292 8XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 MARION LA
— 318-296 5XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 GILLIAM LA
— 318-326 1XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 PL DEALING LA
— 318-375 8XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 VIVIAN LA
— 318-378 5XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 BELCHER LA
— 318-495 1XXX2XXX4XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 OLLA LA
— 318-534 3XXX4XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 TULLOS LA
— 318-539 8XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 SPRINGHILL LA
— 318-659 5XXX7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 CALCASIEU LA
— 318-724 1XXX2XXX5XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 WISNER LA
— 318-726 1XXX2XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 SPENCER LA
— 318-748 0XXX1XXX2XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 GLENMORA LA
— 318-768 1XXX5XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 CHOUDRANT LA
— 318-832 none assigned yet which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 COTTON VLY LA
— 318-846 8XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 SHONGALOO LA
— 318-847 8XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 SAREPTA LA
— 318-876 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 COTTONPORT LA
— 318-894 0XXX1XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 RINGGOLD LA
— 318-922 1XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 PLAUCHEVL LA
— 318-939 1XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 BIG CANE LA
— 318-941 7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 SIMMESPORT LA
— 318-964 7XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 MANSURA LA
— 318-985 7XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 MOREAUVL LA
— 318-992 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 JENA LA
— 318-994 not yet reported which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 SPRINGHILL LA
— 318-997 1XXX which blocks → BRIGHTSPEED OF LOUISIANA, LLC 0434 BORDELONVL LA

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.