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
2019-08-09 315-981-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C OSCEOLA NY
2019-08-09 315-983-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C HERKIMER NY
2019-08-09 315-996-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C NORWOOD NY
2019-08-09 315-996-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C NORWOOD NY
2019-08-09 315-998-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C MORRISTOWN NY
2019-08-07 315-273-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 HAMILTON NY
2019-07-30 315-861-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NOBROOKFLD NY
2019-07-18 315-927-8XXX 8000–8999Assigned NORTHLAND NETWORKS, LTD. - NY 7556 UTICA NY
2019-07-10 315-277-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E JORDAN NY
2019-06-26 315-795-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROME NY
2019-06-24 315-207-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 OSWEGO NY
2019-06-24 315-753-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BALDWINSVL NY
2019-06-18 315-367-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K ONEIDA NY
2019-05-20 315-987-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HANNIBAL NY
2019-05-17 315-933-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SEMPRONIUS NY
2019-05-15 315-359-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NEWARK NY
2019-05-15 315-494-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MARCELLUS NY
2019-05-08 315-346-2XXX 2000–2999Assigned WESTELCOM NETWORK, INC. - NY 1227 CROGHAN NY
2019-05-06 315-352-6XXX 6000–6999Assigned CORETEL NEW YORK, INC. - NY 1215 BALDWINSVL NY
2019-05-06 315-352-7XXX 7000–7999Assigned CORETEL NEW YORK, INC. - NY 1215 BALDWINSVL NY
2019-05-06 315-743-2XXX 2000–2999Assigned CORETEL NEW YORK, INC. - NY 1215 BALDWINSVL NY
2019-05-06 315-743-3XXX 3000–3999Assigned CORETEL NEW YORK, INC. - NY 1215 BALDWINSVL NY
2019-04-30 315-616-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E STAR LAKE NY
2019-04-29 315-610-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HARRISVL NY
2019-04-29 315-629-2XXX 2000–2999Assigned TC SYSTEMS, INC. - NY 7140 EVANSMILLS NY
2019-04-29 315-815-6XXX 6000–6999Assigned TC SYSTEMS, INC. - NY 7140 CAZENOVIA NY
2019-04-29 315-954-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E UNION SPG NY
2019-04-24 315-745-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SENECA FLS NY
2019-04-24 315-757-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MORAVIA NY
2019-04-24 315-975-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E AUBURN NY
2019-04-22 315-809-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PHILA NY
2019-04-22 315-810-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C TULLY NY
2019-04-19 315-981-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E OSCEOLA NY
2019-04-18 315-660-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WOLCOTT NY
2019-04-18 315-892-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PHOENIX NY
2019-04-18 315-993-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WADDINGTON NY
2019-04-17 315-713-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E OGDENSBURG NY
2019-04-17 315-743-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BALDWINSVL NY
2019-04-17 315-893-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MADISON NY
2019-04-17 315-932-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MANLIUS NY
2019-04-17 315-957-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MASSENA NY
2019-04-17 315-974-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CAMDEN NY
2019-04-17 315-978-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CENTRAL SQ NY
2019-04-16 315-273-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HAMILTON NY
2019-04-16 315-407-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CAMILLUS NY
2019-04-16 315-508-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C LITTLE FLS NY
2019-04-16 315-508-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C LITTLE FLS NY
2019-04-16 315-509-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C PULASKI NY
2019-04-16 315-509-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C PULASKI NY
2019-04-16 315-583-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C ADAMS CTR 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.