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 530
FRACTEL, LLC 13
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
2021-03-10 530-944-4XXX 4000–4999Assigned FRACTEL, LLC 965H WILLOW CRK CA
2021-02-17 530-789-9XXX 9000–9999Assigned FRACTEL, LLC 965H MARYSVILLE CA
2020-10-30 530-336-8XXX 8000–8999Assigned FRACTEL, LLC 965H FALLRVRMLS CA
2020-07-08 530-399-9XXX 9000–9999Assigned FRACTEL, LLC 965H CHICO CA
2020-07-08 530-829-4XXX 4000–4999Assigned FRACTEL, LLC 965H CHICO CA
2020-06-02 530-699-9XXX 9000–9999Assigned FRACTEL, LLC 965H DUNNIGAN CA
2020-06-02 530-866-6XXX 6000–6999Assigned FRACTEL, LLC 965H COLFAX CA
2020-06-02 530-977-7XXX 7000–7999Assigned FRACTEL, LLC 965H AUBN NORTH CA
2020-05-27 530-800-8XXX 8000–8999Assigned FRACTEL, LLC 965H CHICO CA
2020-03-31 530-234-5XXX 5000–5999Assigned FRACTEL, LLC 965H RAVENDALE CA
2019-12-02 530-855-5XXX 5000–5999Assigned FRACTEL, LLC 965H CHICO CA
2019-06-19 530-288-8XXX 8000–8999Assigned FRACTEL, LLC 965H CAMPTONVL CA
2019-03-20 530-799-9XXX 9000–9999Assigned FRACTEL, LLC 965H MARYSVILLE 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.