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
2016-09-28 315-936-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C MEXICO NY
2016-09-26 315-920-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LIVERPOOL NY
2016-09-23 315-990-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C HEUVELTON NY
2016-09-23 315-994-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C POPLAR RDG NY
2016-09-23 315-995-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C RED CREEK NY
2016-09-23 315-998-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C MORRISTOWN NY
2016-09-20 315-830-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWARK NY
2016-09-20 315-901-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SYRACUSE NY
2016-09-19 315-819-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C THERESA NY
2016-09-15 315-817-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C SACKETSHBR NY
2016-09-09 315-887-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FULTON NY
2016-09-09 315-932-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MANLIUS NY
2016-09-01 315-775-1XXX 1000–1999Assigned METROPCS, INC. 5562 WATERTOWN NY
2016-09-01 315-965-6XXX 6000–6999Assigned METROPCS, INC. 5562 WATERTOWN NY
2016-08-23 315-813-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SYLVAN BCH NY
2016-08-17 315-740-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MASSENA NY
2016-08-15 315-940-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HERKIMER NY
2016-08-12 315-830-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E NEWARK NY
2016-08-10 315-901-3XXX 3000–3999Assigned NUSO, LLC 551G SYRACUSE NY
2016-08-10 315-901-4XXX 4000–4999Assigned NUSO, LLC 551G SYRACUSE NY
2016-08-10 315-901-5XXX 5000–5999Assigned NUSO, LLC 551G SYRACUSE NY
2016-08-10 315-901-6XXX 6000–6999Assigned NUSO, LLC 551G SYRACUSE NY
2016-08-10 315-901-7XXX 7000–7999Assigned NUSO, LLC 551G SYRACUSE NY
2016-08-03 315-936-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 MEXICO NY
2016-08-01 315-677-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 LAFAYETTE NY
2016-07-15 315-641-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LIVERPOOL NY
2016-07-15 315-641-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LIVERPOOL NY
2016-07-15 315-898-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SYRACUSE NY
2016-07-15 315-898-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SYRACUSE NY
2016-07-15 315-898-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SYRACUSE NY
2016-07-15 315-898-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SYRACUSE NY
2016-07-13 315-776-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PORT BYRON NY
2016-07-13 315-898-2XXX 2000–2999Assigned NORTHLAND NETWORKS, LTD. - NY 7556 SYRACUSE NY
2016-07-01 315-714-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K CANTON NY
2016-06-27 315-830-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWARK NY
2016-06-27 315-901-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2016-06-23 315-407-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CAMILLUS NY
2016-06-22 315-615-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ONEIDA NY
2016-06-20 315-403-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2016-06-20 315-926-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MARION NY
2016-06-17 315-289-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SYRACUSE NY
2016-06-17 315-455-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SYRACUSE NY
2016-06-17 315-746-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 OSWEGO NY
2016-06-17 315-849-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 SYRACUSE NY
2016-06-17 315-880-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 UTICA NY
2016-06-16 315-795-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ROME NY
2016-05-30 315-803-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C LA FARGEVL NY
2016-05-30 315-803-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C LA FARGEVL NY
2016-05-30 315-931-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C MACDOUGALL NY
2016-05-30 315-931-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C MACDOUGALL 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.