NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

7 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, last 30 days — NPA 479
NEW CINGULAR WIRELESS PCS, LLC - IL 3
ONVOY, LLC - AR 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 2
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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 479-872 not yet reported which blocks → SOUTHWESTERN BELL 9533 SPRINGDALE AR
— 479-876 0XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → SOUTHWESTERN BELL 9533 BENTONVL AR
— 479-878 not yet reported which blocks → WINDSTREAM COMMUNICATIONS, INC. - AR 7656 ROGERS AR
— 479-880 none assigned yet which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 RUSSELLVL AR
— 479-883 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 FORT SMITH AR
— 479-885 7XXX which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 LAMAR AR
— 479-890 none assigned yet which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 RUSSELLVL AR
— 479-903 7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 ROGERS AR
— 479-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AR
— 479-918 not yet reported which blocks → AR
— 479-923 not yet reported which blocks → SCOTT COUNTY TELEPHONE CO. 3031 LAKEHINKLE AR
— 479-925 0XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → SOUTHWESTERN BELL 9533 ROGERS AR
— 479-927 6XXX which blocks → SOUTHWESTERN BELL 9533 SPRINGDALE AR
— 479-928 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 MANSFIELD AR
— 479-929 0XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - AR 348F NATURALDAM AR
— 479-934 7XXX which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 SUBIACO AR
— 479-936 none assigned yet which blocks → SOUTHWESTERN BELL 9533 ROGERS AR
— 479-938 5XXX which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 SCRANTON AR
— 479-947 not yet reported which blocks → MAGAZINE TEL. CO. 1710 BLUE MT AR
— 479-950 not yet reported which blocks → AR
— 479-957 9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 FAYETTEVL AR
— 479-958 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX AR
— 479-959 not yet reported which blocks → LITTLEROCK AR
— 479-963 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 PARIS AR
— 479-964 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 RUSSELLVL AR
— 479-965 none assigned yet which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 CHARLESTON AR
— 479-967 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 RUSSELLVL AR
— 479-968 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 RUSSELLVL AR
— 479-969 not yet reported which blocks → MAGAZINE TEL. CO. 1710 MAGAZINE AR
— 479-970 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RUSSELLVL AR
— 479-973 3XXX9XXX · 2 holders which blocks → SOUTHWESTERN BELL 9533 FAYETTEVL AR
— 479-976 not yet reported which blocks → AR
— 479-979 none assigned yet which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 CLARKSVL AR
— 479-981 4XXX7XXX8XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EUREKA SPG AR
— 479-986 not yet reported which blocks → SOUTHWESTERN BELL 9533 ROGERS AR
— 479-988 not yet reported which blocks → AR
— 479-996 not yet reported which blocks → BRIGHTSPEED OF NORTHWEST ARKANSAS, LLC 1142 GREENWOOD AR
— 479-997 none assigned yet which blocks → WINDSTREAM ARKANSAS, INC. 1691 MULBERRY AR

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.