NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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, last 30 days — NPA 410
ONVOY, LLC - MD 2
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
2016-03-16 410-981-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D GLENBURNIE MD
2016-03-15 410-346-9XXX 9000–9999Assigned ONVOY, LLC - MD 876D SILVER RUN MD
2016-03-14 410-756-8XXX 8000–8999Assigned ONVOY, LLC - MD 876D TANEYTOWN MD
2016-03-11 410-431-0XXX 0000–0999Assigned ONVOY, LLC - MD 876D SEVERNA PK MD
2016-03-11 410-907-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D WOODLAWN MD
2016-03-11 410-907-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D WOODLAWN MD
2016-03-11 410-995-9XXX 9000–9999Assigned ONVOY, LLC - MD 876D ELLICOTTCY MD
2016-03-10 410-701-2XXX 2000–2999Assigned ONVOY, LLC - MD 876D RANDALLSTN MD
2016-03-10 410-701-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D RANDALLSTN MD
2016-03-09 410-452-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D CARDIFF MD
2016-03-09 410-452-6XXX 6000–6999Assigned ONVOY, LLC - MD 876D CARDIFF MD
2016-03-09 410-489-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D GLENWOOD MD
2016-03-09 410-817-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D FORK MD
2016-03-08 410-431-2XXX 2000–2999Assigned ONVOY, LLC - MD 876D SEVERNA PK MD
2016-03-08 410-431-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D SEVERNA PK MD
2016-03-08 410-500-9XXX 9000–9999Assigned ONVOY, LLC - MD 876D BALTIMORE MD
2016-03-07 410-346-0XXX 0000–0999Assigned ONVOY, LLC - MD 876D SILVER RUN MD
2016-03-07 410-346-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D SILVER RUN MD
2016-03-04 410-862-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D WATERLO236 MD
2016-03-04 410-862-4XXX 4000–4999Assigned ONVOY, LLC - MD 876D WATERLO236 MD
2016-03-03 410-650-0XXX 0000–0999Assigned ONVOY, LLC - MD 876D DUNDALK MD
2016-03-03 410-650-8XXX 8000–8999Assigned ONVOY, LLC - MD 876D DUNDALK MD
2016-03-02 410-267-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D ANNAPOLIS MD
2016-03-02 410-267-4XXX 4000–4999Assigned ONVOY, LLC - MD 876D ANNAPOLIS MD
2016-03-02 410-403-0XXX 0000–0999Assigned ONVOY, LLC - MD 876D COCKEYSVL MD
2016-03-02 410-403-4XXX 4000–4999Assigned ONVOY, LLC - MD 876D COCKEYSVL MD
2016-03-02 410-769-0XXX 0000–0999Assigned ONVOY, LLC - MD 876D TOWSON MD
2016-03-02 410-769-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D TOWSON MD
2016-03-02 410-775-9XXX 9000–9999Assigned ONVOY, LLC - MD 876D UNION BDG MD
2016-03-01 410-657-4XXX 4000–4999Assigned ONVOY, LLC - MD 876D PARKVILLE MD
2016-03-01 410-657-6XXX 6000–6999Assigned ONVOY, LLC - MD 876D PARKVILLE MD
2016-02-29 410-618-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 PERRYVILLE MD
2016-02-25 410-401-8XXX 8000–8999Assigned ONVOY, LLC - MD 876D BRYNPKLNCM MD
2016-02-25 410-609-5XXX 5000–5999Assigned ONVOY, LLC - MD 876D BRYNPKLNCM MD
2016-02-25 410-709-6XXX 6000–6999Assigned ONVOY, LLC - MD 876D SPARROWSPT MD
2016-02-25 410-709-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D SPARROWSPT MD
2016-02-25 410-734-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D CHURCHVL MD
2016-02-25 410-781-1XXX 1000–1999Assigned ONVOY, LLC - MD 876D ELLICOTTCY MD
2016-02-23 410-204-2XXX 2000–2999Assigned ONVOY, LLC - MD 876D ARBUTUS MD
2016-02-23 410-280-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D ANNAPOLIS MD
2016-02-23 410-324-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D TOWSON MD
2016-02-23 410-346-1XXX 1000–1999Assigned ONVOY, LLC - MD 876D SILVER RUN MD
2016-02-23 410-403-3XXX 3000–3999Assigned ONVOY, LLC - MD 876D COCKEYSVL MD
2016-02-23 410-406-1XXX 1000–1999Assigned ONVOY, LLC - MD 876D ESSEX MD
2016-02-23 410-513-5XXX 5000–5999Assigned ONVOY, LLC - MD 876D PARKVILLE MD
2016-02-23 410-517-7XXX 7000–7999Assigned ONVOY, LLC - MD 876D REISTERSTN MD
2016-02-23 410-609-9XXX 9000–9999Assigned ONVOY, LLC - MD 876D BRYNPKLNCM MD
2016-02-23 410-650-6XXX 6000–6999Assigned ONVOY, LLC - MD 876D DUNDALK MD
2016-02-23 410-709-4XXX 4000–4999Assigned ONVOY, LLC - MD 876D SPARROWSPT MD
2016-02-23 410-734-5XXX 5000–5999Assigned ONVOY, LLC - MD 876D CHURCHVL MD

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.