NumberResearch Membership · Data 09/23/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/23/2026

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 336
ONVOY SPECTRUM, LLC 31
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
2024-09-17 336-777-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H WINSTN SAL NC
2024-09-17 336-796-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WINSTN SAL NC
2024-09-17 336-796-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H WINSTN SAL NC
2024-06-06 336-346-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2024-06-06 336-743-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2024-06-06 336-743-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2024-06-06 336-743-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2024-03-11 336-743-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2024-03-11 336-743-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2024-03-11 336-743-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2024-03-11 336-743-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2024-02-02 336-490-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H DENTON NC
2023-04-21 336-915-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ROXBORO NC
2023-04-13 336-310-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H KERNERSVL NC
2023-04-13 336-377-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H STANLEYVL NC
2023-04-13 336-974-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H RUFFIN NC
2022-05-23 336-290-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H BURLINGTON NC
2022-02-04 336-654-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H MILTON NC
2021-10-26 336-654-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MILTON NC
2021-10-26 336-654-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MILTON NC
2021-10-20 336-323-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2021-10-20 336-357-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H LEXINGTON NC
2021-10-20 336-378-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2021-10-20 336-433-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2021-10-20 336-650-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H WINSTN SAL NC
2021-10-20 336-703-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H WINSTN SAL NC
2021-10-20 336-738-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ANDERSON NC
2021-10-20 336-890-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2021-10-20 336-948-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PROSPECTHL NC
2021-10-20 336-962-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H GREENSBORO NC
2021-05-04 336-654-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H MILTON NC

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.