NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, all time — NPA 760
CSC VOICE, LLC 12
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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2015-06-30 760-232-1XXX 1000–1999Assigned CSC VOICE, LLC 612K PINE CREEK CA
2015-06-30 760-648-8XXX 8000–8999Assigned CSC VOICE, LLC 612K JUNE LAKE CA
2014-02-25 760-263-7XXX 7000–7999Assigned CSC VOICE, LLC 612K BIG PINE CA
2014-02-25 760-278-5XXX 5000–5999Assigned CSC VOICE, LLC 612K BLYTHE CA
2014-02-03 760-273-6XXX 6000–6999Assigned CSC VOICE, LLC 612K EARP CA
2014-02-03 760-276-1XXX 1000–1999Assigned CSC VOICE, LLC 612K PARKER DAM CA
2014-02-03 760-965-0XXX 0000–0999Assigned CSC VOICE, LLC 612K MAMMOTHLKS CA
2011-08-18 760-709-5XXX 5000–5999Assigned CSC VOICE, LLC 612K MAMMOTHLKS CA
2007-03-06 760-544-7XXX 7000–7999Assigned CSC VOICE, LLC 612K BLYTHE CA
2007-01-03 760-258-1XXX 1000–1999Assigned CSC VOICE, LLC 612K BISHOP CA
2007-01-03 760-263-5XXX 5000–5999Assigned CSC VOICE, LLC 612K BIG PINE CA
2006-07-12 760-627-4XXX 4000–4999Assigned CSC VOICE, LLC 612K EARP CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.