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
2013-12-17 315-326-8XXX 8000–8999Assigned IP HORIZON LLC 515J OSWEGO NY
2013-12-17 315-533-8XXX 8000–8999Assigned IP HORIZON LLC 515J ROME NY
2013-12-17 315-775-5XXX 5000–5999Assigned IP HORIZON LLC 515J WATERTOWN NY
2013-12-17 315-801-0XXX 0000–0999Assigned IP HORIZON LLC 515J UTICA NY
2013-12-11 315-928-1XXX 1000–1999Assigned IP HORIZON LLC 515J SYRACUSE NY
2013-11-27 315-746-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 OSWEGO NY
2013-11-27 315-925-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SYRACUSE NY
2013-11-26 315-802-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SYRACUSE NY
2013-11-08 315-883-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SYRACUSE NY
2013-10-25 315-714-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 CANTON NY
2013-10-11 315-554-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J SKANEATLES NY
2013-10-11 315-664-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AUBURN NY
2013-10-11 315-728-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SYRACUSE NY
2013-10-11 315-728-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SYRACUSE NY
2013-10-03 315-310-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MARION NY
2013-10-03 315-726-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2013-10-03 315-741-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2013-10-03 315-801-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 UTICA NY
2013-09-25 315-728-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SYRACUSE NY
2013-08-20 315-742-1XXX 1000–1999Assigned VERIZON NEW YORK, INC. 9104 POTSDAM NY
2013-08-20 315-948-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 ALEXNDRIBY NY
2013-08-15 315-570-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E UTICA NY
2013-08-15 315-963-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MEXICO NY
2013-08-12 315-728-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 SYRACUSE NY
2013-08-06 315-418-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2013-08-06 315-418-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2013-07-29 315-802-0XXX 0000–0999Assigned XO NEW YORK, INC. 8340 SYRACUSE NY
2013-07-29 315-925-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SYRACUSE NY
2013-07-12 315-669-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E DOLGEVILLE NY
2013-06-25 315-686-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J CLAYTON NY
2013-06-19 315-401-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2013-06-19 315-514-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MASSENA NY
2013-06-19 315-742-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 POTSDAM NY
2013-06-19 315-755-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WATERTOWN NY
2013-06-19 315-816-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 WATERTOWN NY
2013-05-03 315-728-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J SYRACUSE NY
2013-05-03 315-728-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J SYRACUSE NY
2013-04-25 315-400-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 FAYETTEVL NY
2013-04-25 315-737-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 UTICA NY
2013-04-12 315-728-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SYRACUSE NY
2013-04-05 315-681-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WATERTOWN NY
2013-04-02 315-760-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2013-04-02 315-760-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2013-04-02 315-760-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SYRACUSE NY
2013-03-27 315-310-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MARION NY
2013-03-27 315-316-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 UTICA NY
2013-03-27 315-359-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NEWARK NY
2013-02-25 315-237-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 AUBURN NY
2013-02-25 315-832-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROME NY
2013-02-22 315-310-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MARION 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.