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
2018-05-09 315-589-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WILLIAMSON NY
2018-05-09 315-609-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E STAR LAKE NY
2018-05-09 315-762-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYLVAN BCH NY
2018-05-08 315-620-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E GENEVA NY
2018-05-07 315-310-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MARION NY
2018-05-07 315-353-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NORWOOD NY
2018-05-07 315-384-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NORFOLK NY
2018-05-07 315-524-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ONTARIO NY
2018-05-07 315-587-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NORTH ROSE NY
2018-05-07 315-712-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SENECA FLS NY
2018-05-07 315-712-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SENECA FLS NY
2018-05-07 315-803-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LA FARGEVL NY
2018-05-07 315-805-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E OWASCO NY
2018-05-07 315-819-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E THERESA NY
2018-05-07 315-931-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MACDOUGALL NY
2018-05-07 315-933-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SEMPRONIUS NY
2018-05-07 315-969-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FABIUS NY
2018-05-07 315-994-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E POPLAR RDG NY
2018-05-07 315-998-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MORRISTOWN NY
2018-05-04 315-429-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E DOLGEVILLE NY
2018-05-04 315-503-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MINOA NY
2018-05-04 315-678-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LYSANDER NY
2018-05-04 315-740-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MASSENA NY
2018-05-04 315-757-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MORAVIA NY
2018-05-04 315-920-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LIVERPOOL NY
2018-05-04 315-923-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CLYDE NY
2018-05-04 315-936-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MEXICO NY
2018-05-04 315-946-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LYONS NY
2018-05-04 315-947-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FAIR HAVEN NY
2018-05-04 315-983-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HERKIMER NY
2018-05-02 315-381-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CLINTON NY
2018-05-02 315-504-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E LAFAYETTE NY
2018-05-02 315-929-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CONSTANTIA NY
2018-05-02 315-967-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FAYETTEVL NY
2018-05-01 315-920-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 LIVERPOOL NY
2018-04-30 315-966-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MACEDON NY
2018-04-26 315-666-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CHITTENNGO NY
2018-04-25 315-984-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HAMMOND NY
2018-04-23 315-837-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E GEORGETOWN NY
2018-04-19 315-979-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CARTHAGE NY
2018-04-17 315-905-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WOLCOTT NY
2018-04-17 315-905-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WOLCOTT NY
2018-04-17 315-995-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E RED CREEK NY
2018-04-16 315-291-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SKANEATLES NY
2018-04-16 315-434-5XXX 5000–5999Assigned NORTHLAND NETWORKS, LTD. - NY 7556 SYRACUSE NY
2018-04-16 315-444-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ILION NY
2018-04-16 315-582-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E GOUVERNEUR NY
2018-04-16 315-818-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E EVANSMILLS NY
2018-04-16 315-915-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CICERO NY
2018-04-11 315-544-6XXX 6000–6999Assigned TC SYSTEMS, INC. - NY 7140 CARTHAGE 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.