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 916
CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 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
2018-02-19 916-406 0–9 XXXall 10 · 4 holders which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
2014-09-29 916-298 0–9 XXXall 10 · 4 holders which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
2010-06-01 916-757 0–9 XXXall 10 · 3 holders which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
2008-04-16 916-865 0–9 XXXall 10 · 6 holders which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
2007-03-30 916-474 0–9 XXXall 10 · 4 holders which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
2007-02-06 916-872 0–9 XXXall 10 · 7 holders which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
2005-10-11 916-770 0–9 XXXall 10 · 5 holders which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-721 2XXX which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL CTHT CA
— 916-722 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL CTHT CA
— 916-723 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL CTHT CA
— 916-725 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL CTHT CA
— 916-726 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL CTHT CA
— 916-727 6XXX8XXX · 2 holders which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL CTHT CA
— 916-728 0XXX8XXX which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL CTHT CA
— 916-729 9XXX which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL CTHT CA
— 916-745 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL CTHT CA
— 916-746 0XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-748 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-771 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-772 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-774 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-780 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-781 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-782 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-783 none assigned yet which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-784 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-786 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-787 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-788 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-789 3XXX which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-791 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-797 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-878 0–9 XXXall 10 · 4 holders which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 RSVL MAIN CA
— 916-969 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY 2334 FAIR OAKS CA

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.