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
2021-11-09 401-303-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WARREN RI
2021-11-09 401-343-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H HOPEVALLEY RI
2021-11-09 401-343-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HOPEVALLEY RI
2021-11-09 401-344-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H NEWPORT RI
2021-11-09 401-344-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H NEWPORT RI
2021-11-09 401-358-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PASCOAG RI
2021-11-09 401-358-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H PASCOAG RI
2021-11-09 401-361-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H WARWICK RI
2021-11-09 401-361-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WARWICK RI
2021-11-09 401-372-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H NO KINGSTN RI
2021-11-09 401-372-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H NO KINGSTN RI
2021-11-09 401-373-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CENTREDALE RI
2021-11-09 401-373-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CENTREDALE RI
2021-11-09 401-398-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H GREENWICH RI
2021-11-09 401-398-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GREENWICH RI
2021-11-09 401-407-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H COVENTRY RI
2021-11-09 401-407-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H COVENTRY RI
2021-11-09 401-485-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H WESTERLY RI
2021-11-09 401-485-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WESTERLY RI
2021-11-09 401-661-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H NARRAGNSTT RI
2021-11-09 401-661-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H NARRAGNSTT RI
2021-11-09 401-685-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H TIVERTON RI
2021-11-09 401-685-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H TIVERTON RI
2021-11-05 401-249-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F COVENTRY RI
2021-11-05 401-306-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F CUMBLND HL RI
2021-11-04 401-903-7XXX 7000–7999Assigned PEERLESS NETWORK OF RHODE ISLAND, LLC - RI 631G WARREN RI
2021-11-04 401-910-9XXX 9000–9999Assigned PEERLESS NETWORK OF RHODE ISLAND, LLC - RI 631G PROVIDENCE RI
2021-10-27 401-360-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F NARRAGNSTT RI
2021-10-27 401-363-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - RI 003F NARRAGNSTT RI
2021-10-26 401-652-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H WOONSOCKET RI
2021-10-26 401-652-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WOONSOCKET RI
2021-10-25 401-321-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 HOPEVALLEY RI
2021-10-25 401-328-0XXX 0000–0999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2021-10-25 401-328-1XXX 1000–1999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2021-10-25 401-328-2XXX 2000–2999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2021-10-25 401-328-3XXX 3000–3999Assigned OMNIPOINT MIAMI E LICENSE, LLC 6889 PROVIDENCE RI
2021-10-25 401-381-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H W WARWICK RI
2021-10-25 401-381-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H W WARWICK RI
2021-10-21 401-376-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CUMBLND HL RI
2021-10-21 401-376-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CUMBLND HL RI
2021-10-21 401-417-2XXX 2000–2999Assigned ONVOY, LLC - RI 977E NEWPORT RI
2021-10-21 401-417-3XXX 3000–3999Assigned ONVOY, LLC - RI 977E NEWPORT RI
2021-10-21 401-417-4XXX 4000–4999Assigned ONVOY, LLC - RI 977E NEWPORT RI
2021-10-21 401-420-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H LTLCOMPTON RI
2021-10-21 401-420-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H LTLCOMPTON RI
2021-10-21 401-560-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H JAMESTOWN RI
2021-10-21 401-560-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H JAMESTOWN RI
2021-10-21 401-992-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H WGLOCESTER RI
2021-10-21 401-992-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H WGLOCESTER RI
2021-10-18 401-362-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H PAWTUCKET 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.