NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

11 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 401
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI 4
ONVOY, LLC - RI 2
BANDWIDTH.COM CLEC, LLC - RI 2
TELNYX LLC 1
LEVEL 3 COMMUNICATIONS, LLC - RI 1
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
2016-02-25 401-466-7XXX 7000–7999Assigned ONVOY, LLC - RI 977E BLOCK IS RI
2016-02-25 401-594-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NARRAGNSTT RI
2016-02-25 401-618-0XXX 0000–0999Assigned ONVOY, LLC - RI 977E CENTREDALE RI
2016-02-25 401-618-1XXX 1000–1999Assigned ONVOY, LLC - RI 977E CENTREDALE RI
2016-02-25 401-636-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOONSOCKET RI
2016-02-25 401-859-6XXX 6000–6999Assigned ONVOY, LLC - RI 977E BLOCK IS RI
2016-02-24 401-498-7XXX 7000–7999Assigned ONVOY, LLC - RI 977E WGLOCESTER RI
2016-02-24 401-498-8XXX 8000–8999Assigned ONVOY, LLC - RI 977E WGLOCESTER RI
2016-02-23 401-200-5XXX 5000–5999Assigned METROPCS, INC. 5562 BRISTOL RI
2016-02-23 401-409-7XXX 7000–7999Assigned ONVOY, LLC - RI 977E CAROLINA RI
2016-02-23 401-409-8XXX 8000–8999Assigned ONVOY, LLC - RI 977E CAROLINA RI
2016-02-23 401-425-3XXX 3000–3999Assigned ONVOY, LLC - RI 977E CUMBLND HL RI
2016-02-23 401-425-4XXX 4000–4999Assigned ONVOY, LLC - RI 977E CUMBLND HL RI
2016-02-23 401-566-7XXX 7000–7999Assigned ONVOY, LLC - RI 977E JAMESTOWN RI
2016-02-23 401-566-8XXX 8000–8999Assigned ONVOY, LLC - RI 977E JAMESTOWN RI
2016-02-23 401-764-8XXX 8000–8999Assigned ONVOY, LLC - RI 977E SCITUATE RI
2016-02-23 401-764-9XXX 9000–9999Assigned ONVOY, LLC - RI 977E SCITUATE RI
2016-02-22 401-313-3XXX 3000–3999Assigned ONVOY, LLC - RI 977E COVENTRY RI
2016-02-22 401-313-4XXX 4000–4999Assigned ONVOY, LLC - RI 977E COVENTRY RI
2016-02-22 401-329-2XXX 2000–2999Assigned ONVOY, LLC - RI 977E NO KINGSTN RI
2016-02-22 401-329-3XXX 3000–3999Assigned ONVOY, LLC - RI 977E NO KINGSTN RI
2016-02-22 401-343-6XXX 6000–6999Assigned ONVOY, LLC - RI 977E HOPEVALLEY RI
2016-02-22 401-343-7XXX 7000–7999Assigned ONVOY, LLC - RI 977E HOPEVALLEY RI
2016-02-19 401-293-2XXX 2000–2999Assigned ONVOY, LLC - RI 977E PORTSMOUTH RI
2016-02-19 401-293-4XXX 4000–4999Assigned ONVOY, LLC - RI 977E PORTSMOUTH RI
2016-02-19 401-307-4XXX 4000–4999Assigned ONVOY, LLC - RI 977E TIVERTON RI
2016-02-19 401-307-5XXX 5000–5999Assigned ONVOY, LLC - RI 977E TIVERTON RI
2016-02-19 401-336-5XXX 5000–5999Assigned ONVOY, LLC - RI 977E GREENWICH RI
2016-02-19 401-336-6XXX 6000–6999Assigned ONVOY, LLC - RI 977E GREENWICH RI
2016-02-19 401-388-4XXX 4000–4999Assigned ONVOY, LLC - RI 977E WESTERLY RI
2016-02-19 401-388-5XXX 5000–5999Assigned ONVOY, LLC - RI 977E WESTERLY RI
2016-02-19 401-567-1XXX 1000–1999Assigned ONVOY, LLC - RI 977E PASCOAG RI
2016-02-19 401-567-2XXX 2000–2999Assigned ONVOY, LLC - RI 977E PASCOAG RI
2016-02-18 401-200-3XXX 3000–3999Assigned ONVOY, LLC - RI 977E BRISTOL RI
2016-02-18 401-200-4XXX 4000–4999Assigned ONVOY, LLC - RI 977E BRISTOL RI
2016-02-17 401-337-7XXX 7000–7999Assigned ONVOY, LLC - RI 977E WARREN RI
2016-02-17 401-337-8XXX 8000–8999Assigned ONVOY, LLC - RI 977E WARREN RI
2016-02-12 401-795-3XXX 3000–3999Assigned ONVOY, LLC - RI 977E NARRAGNSTT RI
2016-02-12 401-795-4XXX 4000–4999Assigned ONVOY, LLC - RI 977E NARRAGNSTT RI
2016-02-10 401-324-0XXX 0000–0999Assigned ONVOY, LLC - RI 977E NEWPORT RI
2016-02-10 401-324-1XXX 1000–1999Assigned ONVOY, LLC - RI 977E NEWPORT RI
2016-02-09 401-661-4XXX 4000–4999Assigned METROPCS, INC. 5562 NARRAGNSTT RI
2016-02-09 401-661-5XXX 5000–5999Assigned METROPCS, INC. 5562 NARRAGNSTT RI
2016-02-09 401-661-6XXX 6000–6999Assigned METROPCS, INC. 5562 NARRAGNSTT RI
2016-01-13 401-425-9XXX 9000–9999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 CUMBLND HL RI
2016-01-08 401-410-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRISTOL RI
2016-01-08 401-410-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRISTOL RI
2016-01-08 401-543-4XXX 4000–4999Assigned METROPCS, INC. 5562 PAWTUCKET RI
2016-01-08 401-543-5XXX 5000–5999Assigned METROPCS, INC. 5562 PAWTUCKET RI
2016-01-08 401-757-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CENTREDALE RI

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.