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 424
TELNYX LLC 27
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
2025-05-23 424-550-5XXX 5000–5999Assigned TELNYX LLC 073H BEVERLYHLS CA
2023-11-28 424-492-0XXX 0000–0999Assigned TELNYX LLC 073H TORRANCE CA
2023-04-27 424-855-8XXX 8000–8999Assigned TELNYX LLC 073H AVALON CA
2023-02-16 424-544-0XXX 0000–0999Assigned TELNYX LLC 073H EL SEGUNDO CA
2021-12-08 424-462-0XXX 0000–0999Assigned TELNYX LLC 073H SAN PEDRO CA
2021-06-07 424-447-1XXX 1000–1999Assigned TELNYX LLC 073H INGLEWOOD CA
2021-04-26 424-667-0XXX 0000–0999Assigned TELNYX LLC 073H LOMITA CA
2020-11-18 424-435-0XXX 0000–0999Assigned TELNYX LLC 073H TORRANCE CA
2020-11-18 424-441-0XXX 0000–0999Assigned TELNYX LLC 073H MALIBU CA
2020-11-18 424-842-0XXX 0000–0999Assigned TELNYX LLC 073H W ANGELES CA
2020-10-27 424-417-8XXX 8000–8999Assigned TELNYX LLC 073H SAN PEDRO CA
2020-10-27 424-437-1XXX 1000–1999Assigned TELNYX LLC 073H HAWTHORNE CA
2019-08-21 424-432-0XXX 0000–0999Assigned TELNYX LLC 073H AVALON CA
2018-05-01 424-401-9XXX 9000–9999Assigned TELNYX LLC 073H LOMITA CA
2017-05-22 424-267-2XXX 2000–2999Assigned TELNYX LLC 073H SAN PEDRO CA
2017-05-22 424-307-8XXX 8000–8999Assigned TELNYX LLC 073H HAWTHORNE CA
2017-05-22 424-318-3XXX 3000–3999Assigned TELNYX LLC 073H TORRANCE CA
2017-05-22 424-388-5XXX 5000–5999Assigned TELNYX LLC 073H MALIBU CA
2017-05-22 424-423-6XXX 6000–6999Assigned TELNYX LLC 073H EL SEGUNDO CA
2017-05-22 424-452-9XXX 9000–9999Assigned TELNYX LLC 073H REDONDO CA
2017-05-22 424-501-3XXX 3000–3999Assigned TELNYX LLC 073H CULVERCITY CA
2017-05-22 424-528-1XXX 1000–1999Assigned TELNYX LLC 073H CMTN GRDN CA
2017-05-22 424-537-5XXX 5000–5999Assigned TELNYX LLC 073H SNMN MRVS CA
2017-05-22 424-538-1XXX 1000–1999Assigned TELNYX LLC 073H SNMN SNMN CA
2017-03-14 424-402-3XXX 3000–3999Assigned TELNYX LLC 073H W ANGELES CA
2017-03-14 424-512-0XXX 0000–0999Assigned TELNYX LLC 073H BEVERLYHLS CA
2016-12-16 424-414-1XXX 1000–1999Assigned TELNYX LLC 073H INGLEWOOD 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.