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
2019-04-04 315-840-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E JORDAN NY
2019-04-04 315-929-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CONSTANTIA NY
2019-04-04 315-933-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SEMPRONIUS NY
2019-04-04 315-933-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SEMPRONIUS NY
2019-04-04 315-936-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MEXICO NY
2019-04-04 315-983-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 HERKIMER NY
2019-04-04 315-983-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 HERKIMER NY
2019-04-04 315-983-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 HERKIMER NY
2019-04-04 315-999-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CLEVELAND NY
2019-03-26 315-629-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E EVANSMILLS NY
2019-03-26 315-817-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SACKETSHBR NY
2019-03-26 315-895-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ILION NY
2019-03-26 315-988-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E COPENHAGEN NY
2019-03-25 315-304-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HENDERSON NY
2019-03-25 315-355-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MADRID NY
2019-03-25 315-938-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HENDERSON NY
2019-03-25 315-979-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CARTHAGE NY
2019-03-25 315-995-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E RED CREEK NY
2019-03-25 315-995-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E RED CREEK NY
2019-03-22 315-872-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MANNSVILLE NY
2019-03-21 315-966-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MACEDON NY
2019-03-21 315-966-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MACEDON NY
2019-03-21 315-997-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ONTARIO NY
2019-03-15 315-358-6XXX 6000–6999Assigned TC SYSTEMS, INC. - NY 7140 BOONVILLE NY
2019-03-11 315-742-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 POTSDAM NY
2019-03-08 315-828-2XXX 2000–2999Assigned EMPIRE LONG DISTANCE CORPORATION 087H GENEVA NY
2019-03-01 315-909-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NEWARK NY
2019-02-26 315-983-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 HERKIMER NY
2019-02-21 315-957-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 MASSENA NY
2019-02-15 315-961-0XXX 0000–0999Assigned CORETEL NEW YORK, INC. - NY 1215 ADAMS NY
2019-02-15 315-971-2XXX 2000–2999Assigned CORETEL NEW YORK, INC. - NY 1215 FAIR HAVEN NY
2019-01-30 315-933-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K SEMPRONIUS NY
2019-01-22 315-594-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WOLCOTT NY
2019-01-22 315-905-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WOLCOTT NY
2019-01-18 315-883-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K SYRACUSE NY
2019-01-09 315-377-6XXX 6000–6999Assigned WESTELCOM NETWORK, INC. - NY 1227 LOWVILLE NY
2019-01-09 315-583-8XXX 8000–8999Assigned WESTELCOM NETWORK, INC. - NY 1227 ADAMS CTR NY
2019-01-08 315-997-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 ONTARIO NY
2019-01-04 315-202-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WATERVILLE NY
2018-12-31 315-275-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 UTICA NY
2018-12-28 315-926-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MARION NY
2018-12-20 315-603-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 POTSDAM NY
2018-12-17 315-983-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HERKIMER NY
2018-12-11 315-927-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 UTICA NY
2018-12-10 315-305-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BRANCHPORT NY
2018-12-10 315-330-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ROME NY
2018-12-07 315-881-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MORAVIA NY
2018-12-07 315-924-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PENN YAN NY
2018-12-04 315-740-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MASSENA NY
2018-12-04 315-901-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE 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.