NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 540
ONVOY SPECTRUM, LLC 185
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2023-08-05 540-202-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H THE PLAINS VA
2023-08-05 540-304-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H REMINGTON VA
2023-08-05 540-540-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H GLASGOW VA
2023-08-05 540-675-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H WASHINGTON VA
2023-08-05 540-804-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SHAWSVILLE VA
2023-08-05 540-957-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H BUENAVISTA VA
2023-03-27 540-453-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H WEYERSCAVE VA
2023-03-27 540-515-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BRIDGEWTR VA
2023-03-27 540-584-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H GROTTOES VA
2023-03-27 540-606-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ELKTON VA
2023-03-27 540-730-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H KEEZLETOWN VA
2023-03-27 540-833-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H EDOM VA
2022-02-23 540-240-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ROANOKE VA
2022-02-23 540-240-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ROANOKE VA
2022-02-23 540-670-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H FREDECKSBG VA
2022-02-23 540-670-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H FREDECKSBG VA
2022-02-18 540-203-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CHANCELLOR VA
2022-02-18 540-203-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CHANCELLOR VA
2022-02-18 540-956-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H STONE MT VA
2022-02-18 540-956-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H STONE MT VA
2022-02-16 540-726-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H NARROWS VA
2022-02-11 540-821-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BERRYVILLE VA
2022-02-10 540-807-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H LOUISA VA
2022-02-05 540-897-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H PAINT BANK VA
2022-02-04 540-880-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BROWNSBURG VA
2022-02-04 540-880-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BROWNSBURG VA
2022-02-04 540-902-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GREENWOOD VA
2022-02-04 540-902-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H GREENWOOD VA
2022-02-04 540-918-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SHENANDOAH VA
2022-02-04 540-918-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SHENANDOAH VA
2022-01-19 540-694-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H STEPHENSCY VA
2022-01-19 540-694-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H STEPHENSCY VA
2022-01-19 540-714-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H WARRENTON VA
2022-01-19 540-714-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WARRENTON VA
2022-01-19 540-876-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CHRISTISBG VA
2022-01-19 540-876-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CHRISTISBG VA
2021-12-28 540-873-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H STAFFORD VA
2021-12-28 540-873-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H STAFFORD VA
2021-12-22 540-768-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SPOTSYLVAN VA
2021-12-22 540-780-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H MT GILEAD VA
2021-12-22 540-780-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H MT GILEAD VA
2021-12-22 540-807-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H LOUISA VA
2021-12-22 540-807-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H LOUISA VA
2021-12-22 540-906-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H PEARISBURG VA
2021-12-22 540-906-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H PEARISBURG VA
2021-12-21 540-796-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H HARTWOOD VA
2021-12-21 540-796-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H HARTWOOD VA
2021-12-21 540-851-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H STAUNTON VA
2021-12-21 540-851-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H STAUNTON VA
2021-12-21 540-913-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WINCHESTER VA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.