NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

4 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 315
ONVOY, LLC- NY 4
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
2018-07-24 315-951-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CANASTOTA NY
2018-07-23 315-988-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E COPENHAGEN NY
2018-07-18 315-967-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 FAYETTEVL NY
2018-07-12 315-909-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NEWARK NY
2018-07-09 315-786-9XXX 9000–9999Assigned METROPCS, INC. 5562 WATERTOWN NY
2018-07-03 315-987-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HANNIBAL NY
2018-07-02 315-692-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MANLIUS NY
2018-06-28 315-677-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LAFAYETTE NY
2018-06-28 315-803-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LA FARGEVL NY
2018-06-28 315-967-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FAYETTEVL NY
2018-06-28 315-969-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FABIUS NY
2018-06-27 315-666-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CHITTENNGO NY
2018-06-27 315-787-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E GENEVA NY
2018-06-27 315-824-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HAMILTON NY
2018-06-27 315-824-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HAMILTON NY
2018-06-27 315-966-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MACEDON NY
2018-06-22 315-424-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 SYRACUSE NY
2018-06-11 315-284-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C ADAMS CTR NY
2018-06-11 315-291-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SKANEATLES NY
2018-06-11 315-304-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C HENDERSON NY
2018-06-11 315-305-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C BRANCHPORT NY
2018-06-11 315-387-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C SANDYCREEK NY
2018-06-11 315-509-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C PULASKI NY
2018-06-11 315-564-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C HANNIBAL NY
2018-06-11 315-626-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C CATO NY
2018-06-11 315-678-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C LYSANDER NY
2018-06-11 315-756-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C BELLEVILLE NY
2018-06-11 315-872-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C MANNSVILLE NY
2018-06-11 315-947-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C FAIR HAVEN NY
2018-06-11 315-995-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E RED CREEK NY
2018-06-08 315-444-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ILION NY
2018-06-08 315-535-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E GOUVERNEUR NY
2018-06-08 315-629-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E EVANSMILLS NY
2018-06-08 315-905-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WOLCOTT NY
2018-06-08 315-905-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WOLCOTT NY
2018-06-07 315-232-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C ADAMS NY
2018-05-29 315-830-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NEWARK NY
2018-05-23 315-465-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MANNSVILLE NY
2018-05-23 315-502-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PALMYRA NY
2018-05-23 315-537-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HARRISVL NY
2018-05-23 315-810-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E TULLY NY
2018-05-22 315-549-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FAYETTE NY
2018-05-22 315-626-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CATO NY
2018-05-14 315-564-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HANNIBAL NY
2018-05-14 315-993-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WADDINGTON NY
2018-05-11 315-508-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LITTLE FLS NY
2018-05-11 315-644-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NATURALBDG NY
2018-05-10 315-599-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E OSCEOLA NY
2018-05-10 315-809-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PHILA NY
2018-05-10 315-817-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SACKETSHBR NY

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.