NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
HD CARRIER 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
2019-04-04 760-548-9XXX 9000–9999Assigned HD CARRIER LLC 321J PALM SPG CA
2016-08-04 760-973-0XXX 0000–0999Assigned HD CARRIER LLC 321J FORT IRWIN CA
2016-08-04 760-973-1XXX 1000–1999Assigned HD CARRIER LLC 321J FORT IRWIN CA
2014-07-22 760-301-3XXX 3000–3999Assigned HD CARRIER LLC 321J RIDGECREST CA
2014-07-22 760-614-4XXX 4000–4999Assigned HD CARRIER LLC 321J LONE PINE CA
2014-07-22 760-973-9XXX 9000–9999Assigned HD CARRIER LLC 321J FORT IRWIN CA
2010-01-20 760-582-1XXX 1000–1999Assigned HD CARRIER LLC 321J BISHOP CA
2009-01-08 760-569-0XXX 0000–0999Assigned HD CARRIER LLC 321J PALM SPG CA
2009-01-08 760-569-2XXX 2000–2999Assigned HD CARRIER LLC 321J PALM SPG CA
2009-01-08 760-569-4XXX 4000–4999Assigned HD CARRIER LLC 321J PALM SPG CA
2009-01-08 760-569-6XXX 6000–6999Assigned HD CARRIER LLC 321J PALM SPG CA
2009-01-08 760-569-7XXX 7000–7999Assigned HD CARRIER LLC 321J PALM SPG CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.