NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 518
ONVOY, LLC- NY 2
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
2016-10-05 518-818-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K ALBANY NY
2016-10-05 518-818-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K ALBANY NY
2016-10-05 518-818-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K ALBANY NY
2016-10-05 518-901-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K SCHENCTADY NY
2016-10-05 518-901-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K SCHENCTADY NY
2016-09-30 518-804-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K GLENSFALLS NY
2016-09-29 518-805-5XXX 5000–5999Assigned METROPCS, INC. 5562 TROY NY
2016-09-28 518-719-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CATSKILL NY
2016-09-28 518-808-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C FORT ANN NY
2016-09-28 518-808-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C FORT ANN NY
2016-09-19 518-510-0XXX 0000–0999Assigned ONVOY, LLC- NY 384C PITTSTOWN NY
2016-09-15 518-594-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C ELENBGDPOT NY
2016-09-15 518-808-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C FORT ANN NY
2016-09-15 518-808-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C FORT ANN NY
2016-09-09 518-949-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K ALBANY NY
2016-09-02 518-816-6XXX 6000–6999Assigned METROPCS, INC. 5562 ALBANY NY
2016-08-31 518-513-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VOORHEESVL NY
2016-08-31 518-734-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WINDHAM NY
2016-08-31 518-797-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WESTERLO NY
2016-08-31 518-805-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TROY NY
2016-08-31 518-924-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WELLS NY
2016-08-31 518-946-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WILMINGTON NY
2016-08-26 518-201-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 PAULSMITHS NY
2016-08-26 518-239-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OAK HILL NY
2016-08-26 518-245-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SARATOGSPG NY
2016-08-26 518-251-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NORTHCREEK NY
2016-08-26 518-351-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SCHROON LK NY
2016-08-26 518-405-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PLATTSBG NY
2016-08-26 518-501-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SOBETHLEHM NY
2016-08-26 518-509-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROUND LAKE NY
2016-08-26 518-519-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RICHMONDVL NY
2016-08-26 518-568-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ST JOHNSVL NY
2016-08-26 518-582-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NEWCOMB NY
2016-08-26 518-600-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SARANAC NY
2016-08-26 518-619-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SARANAC LK NY
2016-08-26 518-666-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J STREGISFLS NY
2016-08-26 518-740-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TANNERSVL NY
2016-08-26 518-829-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TRIBESHILL NY
2016-08-26 518-919-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PUTNAM NY
2016-08-25 518-610-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 KINDERHOOK NY
2016-08-25 518-668-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAKEGEORGE NY
2016-08-24 518-403-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 LK LUZERNE NY
2016-08-24 518-418-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAKEPLACID NY
2016-08-24 518-481-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MALONE NY
2016-08-24 518-548-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 LKPLEASANT NY
2016-08-24 518-601-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 MINEVILLE NY
2016-08-24 518-613-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 MAYFIELD NY
2016-08-24 518-624-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 LONG LAKE NY
2016-08-24 518-665-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MECHANICVL NY
2016-08-24 518-735-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LYON MT 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.