NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

4 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2014-10-16 315-653-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SO OTSELIC NY
2014-10-16 315-659-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ANTWERP NY
2014-10-16 315-662-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NEWWDSTOCK NY
2014-10-16 315-666-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHITTENNGO NY
2014-10-16 315-667-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 MARION NY
2014-10-16 315-678-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 LYSANDER NY
2014-10-16 315-684-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MORRISVL NY
2014-10-16 315-691-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 EARLVILLE NY
2014-10-16 315-693-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ONEIDA NY
2014-10-16 315-712-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SENECA FLS NY
2014-10-16 315-743-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BALDWINSVL NY
2014-10-16 315-754-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 RED CREEK NY
2014-10-16 315-810-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TULLY NY
2014-10-16 315-813-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SYLVAN BCH NY
2014-10-16 315-824-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HAMILTON NY
2014-10-16 315-837-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 GEORGETOWN NY
2014-10-16 315-838-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROME NY
2014-10-16 315-847-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PALMYRA NY
2014-10-16 315-852-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 DE RUYTER NY
2014-10-16 315-855-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 LEONARDSVL NY
2014-10-16 315-859-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLINTON NY
2014-10-16 315-861-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NOBROOKFLD NY
2014-10-16 315-864-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J UTICA NY
2014-10-16 315-869-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MADRID NY
2014-10-16 315-873-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WATERLOO NY
2014-10-16 315-874-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 LOWVILLE NY
2014-10-16 315-888-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J AMBER NY
2014-10-16 315-893-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MADISON NY
2014-10-16 315-896-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BARNEVELD NY
2014-10-16 315-899-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BROOKFIELD NY
2014-10-16 315-904-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WILLIAMSON NY
2014-10-16 315-908-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MEXICO NY
2014-10-16 315-915-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CICERO NY
2014-10-16 315-923-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 CLYDE NY
2014-10-16 315-947-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 FAIR HAVEN NY
2014-10-16 315-948-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ALEXNDRIBY NY
2014-10-16 315-951-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CANASTOTA NY
2014-10-16 315-967-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FAYETTEVL NY
2014-10-16 315-977-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RICHFLDSPG NY
2014-10-16 315-988-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COPENHAGEN NY
2014-10-16 315-999-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLEVELAND NY
2014-10-14 315-370-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AUBURN NY
2014-10-14 315-870-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K SYRACUSE NY
2014-10-13 315-897-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C SYLVAN BCH NY
2014-10-13 315-940-8XXX 8000–8999Assigned ONVOY, LLC- NY 384C HERKIMER NY
2014-10-10 315-802-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SYRACUSE NY
2014-10-10 315-802-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SYRACUSE NY
2014-10-10 315-870-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SYRACUSE NY
2014-10-03 315-584-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MARION NY
2014-09-30 315-203-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ADAMS NY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.