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
2011-10-26 315-502-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PALMYRA NY
2011-10-26 315-626-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CATO NY
2011-10-24 315-274-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 POTSDAM NY
2011-10-19 315-816-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 WATERTOWN NY
2011-10-17 315-304-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HENDERSON NY
2011-10-17 315-375-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MORRISTOWN NY
2011-10-17 315-387-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SANDYCREEK NY
2011-10-17 315-564-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HANNIBAL NY
2011-10-14 315-327-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 UTICA NY
2011-09-28 315-896-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E BARNEVELD NY
2011-09-21 315-203-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ADAMS NY
2011-09-21 315-418-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SYRACUSE NY
2011-09-21 315-509-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PULASKI NY
2011-09-06 315-709-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROME NY
2011-09-02 315-388-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WADDINGTON NY
2011-09-02 315-642-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PHILA NY
2011-09-02 315-812-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SODUS NY
2011-09-02 315-858-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E RICHFLDSPG NY
2011-08-29 315-203-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ADAMS NY
2011-08-29 315-293-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WOLCOTT NY
2011-08-29 315-344-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HEUVELTON NY
2011-08-29 315-587-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NORTH ROSE NY
2011-08-29 315-754-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E RED CREEK NY
2011-08-29 315-904-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WILLIAMSON NY
2011-08-18 315-353-0XXX 0000–0999Assigned SLIC NETWORK SOLUTIONS, INC. - NY 193C NORWOOD NY
2011-08-18 315-384-7XXX 7000–7999Assigned SLIC NETWORK SOLUTIONS, INC. - NY 193C NORFOLK NY
2011-08-12 315-216-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C OSWEGO NY
2011-08-12 315-320-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C CAMILLUS NY
2011-08-12 315-367-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C ONEIDA NY
2011-08-12 315-533-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C ROME NY
2011-08-12 315-704-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C AUBURN NY
2011-08-12 315-715-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C LIVERPOOL NY
2011-08-12 315-753-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C BALDWINSVL NY
2011-08-12 315-816-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C WATERTOWN NY
2011-08-12 315-982-5XXX 5000–5999Assigned ONVOY, LLC- NY 384C UTICA NY
2011-08-03 315-296-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MASSENA NY
2011-08-03 315-316-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 UTICA NY
2011-08-03 315-766-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SYRACUSE NY
2011-08-03 315-766-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SYRACUSE NY
2011-08-03 315-886-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ONEIDA NY
2011-08-02 315-288-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CICERO NY
2011-08-02 315-367-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ONEIDA NY
2011-08-02 315-670-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WATERLOO NY
2011-08-02 315-726-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2011-07-19 315-217-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SKANEATLES NY
2011-07-14 315-766-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SYRACUSE NY
2011-07-13 315-400-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 FAYETTEVL NY
2011-07-13 315-612-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E AUBURN NY
2011-07-12 315-418-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2011-07-11 315-504-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J LAFAYETTE 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.