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
2018-04-05 315-909-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C NEWARK NY
2018-04-02 315-938-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HENDERSON NY
2018-04-02 315-938-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HENDERSON NY
2018-03-30 315-780-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 OLD FORGE NY
2018-03-30 315-878-7XXX 7000–7999Assigned ONVOY, LLC- NY 384C GENEVA NY
2018-03-26 315-275-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 UTICA NY
2018-03-21 315-758-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J WEEDSPORT NY
2018-03-21 315-968-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 PARISH NY
2018-03-20 315-692-3XXX 3000–3999Assigned TC SYSTEMS, INC. - NY 7140 MANLIUS NY
2018-03-19 315-893-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MADISON NY
2018-03-14 315-468-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 SYRACUSE NY
2018-03-12 315-273-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HAMILTON NY
2018-03-08 315-666-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CHITTENNGO NY
2018-03-06 315-824-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HAMILTON NY
2018-02-07 315-927-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 UTICA NY
2018-02-02 315-937-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K SYRACUSE NY
2018-02-02 315-960-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K SYRACUSE NY
2018-01-16 315-922-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 UTICA NY
2018-01-16 315-960-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2018-01-08 315-916-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 AUBURN NY
2018-01-04 315-743-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 BALDWINSVL NY
2017-12-29 315-909-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWARK NY
2017-12-29 315-920-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LIVERPOOL NY
2017-12-22 315-907-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 SYRACUSE NY
2017-12-12 315-795-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 ROME NY
2017-12-08 315-549-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C FAYETTE NY
2017-12-06 315-927-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 UTICA NY
2017-12-05 315-937-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2017-12-05 315-937-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2017-11-29 315-304-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HENDERSON NY
2017-11-29 315-304-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HENDERSON NY
2017-11-29 315-417-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ILION NY
2017-11-29 315-493-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CARTHAGE NY
2017-11-20 315-903-0XXX 0000–0999Assigned METROPCS, INC. 5562 MACEDON NY
2017-11-20 315-909-0XXX 0000–0999Assigned METROPCS, INC. 5562 NEWARK NY
2017-11-20 315-909-9XXX 9000–9999Assigned METROPCS, INC. 5562 NEWARK NY
2017-11-01 315-907-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2017-11-01 315-907-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2017-11-01 315-907-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 SYRACUSE NY
2017-10-23 315-494-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 MARCELLUS NY
2017-10-23 315-815-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CAZENOVIA NY
2017-10-23 315-978-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CENTRAL SQ NY
2017-10-09 315-627-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 MINOA NY
2017-10-09 315-892-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PHOENIX NY
2017-10-04 315-907-4XXX 4000–4999Assigned ONVOY, LLC- NY 384C SYRACUSE NY
2017-10-04 315-907-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C SYRACUSE NY
2017-10-03 315-991-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K SYRACUSE NY
2017-10-03 315-991-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K SYRACUSE NY
2017-09-28 315-922-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 UTICA NY
2017-09-27 315-566-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 POTSDAM 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.