NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

4 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2005-01-12 315-842-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MASSENA NY
2005-01-07 315-836-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WATERTOWN NY
2005-01-06 315-235-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 UTICA NY
2005-01-06 315-371-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ROME NY
2005-01-06 315-405-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WATERTOWN NY
2005-01-06 315-406-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 AUBURN NY
2005-01-06 315-576-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MARION NY
2005-01-06 315-576-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MARION NY
2005-01-06 315-750-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 HAMILTON NY
2005-01-06 315-879-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NEWARK NY
2005-01-05 315-207-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 OSWEGO NY
2004-12-22 315-370-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 AUBURN NY
2004-12-22 315-370-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 AUBURN NY
2004-12-21 315-692-1XXX 1000–1999Assigned WINDSTREAM NEW YORK, INC. - FULTON 0106 MANLIUS NY
2004-12-21 315-806-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FULTON NY
2004-12-21 315-806-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FULTON NY
2004-12-21 315-806-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FULTON NY
2004-12-21 315-806-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FULTON NY
2004-12-21 315-806-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FULTON NY
2004-12-20 315-842-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J MASSENA NY
2004-12-07 315-532-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 OSWEGO NY
2004-12-07 315-697-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J CANASTOTA NY
2004-12-07 315-719-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 GENEVA NY
2004-12-07 315-749-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 UTICA NY
2004-12-07 315-767-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WATERTOWN NY
2004-12-02 315-849-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SYRACUSE NY
2004-11-18 315-214-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF NEW YORK, LP - NY 8473 SYRACUSE NY
2004-11-18 315-632-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF NEW YORK, LP - NY 8473 FAYETTEVL NY
2004-11-15 315-402-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FULTON NY
2004-11-15 315-402-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FULTON NY
2004-11-09 315-368-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 UTICA NY
2004-11-04 315-368-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 UTICA NY
2004-11-04 315-406-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 AUBURN NY
2004-11-04 315-717-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 HERKIMER NY
2004-11-04 315-767-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WATERTOWN NY
2004-11-02 315-551-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J SYRACUSE NY
2004-10-30 315-705-2XXX 2000–2999Assigned SLIC NETWORK SOLUTIONS, INC. - NY 193C MASSENA NY
2004-10-30 315-714-3XXX 3000–3999Assigned SLIC NETWORK SOLUTIONS, INC. - NY 193C CANTON NY
2004-10-07 315-815-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K CAZENOVIA NY
2004-10-06 315-290-2XXX 2000–2999Assigned METROPCS, INC. 5562 LYONS NY
2004-10-06 315-663-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 FAYETTEVL NY
2004-10-06 315-663-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 FAYETTEVL NY
2004-10-05 315-502-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K PALMYRA NY
2004-10-05 315-553-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K SODUS NY
2004-10-05 315-651-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K WATERLOO NY
2004-10-05 315-904-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K WILLIAMSON NY
2004-10-04 315-219-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K HERKIMER NY
2004-10-04 315-895-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K ILION NY
2004-10-01 315-261-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K POTSDAM NY
2004-10-01 315-705-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K MASSENA NY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.