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
2018-05-21 518-808-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 FORT ANN NY
2018-05-16 518-806-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 MALONE NY
2018-05-10 518-267-5XXX 5000–5999Assigned METROPCS, INC. 5562 HUDSON NY
2018-05-10 518-804-8XXX 8000–8999Assigned METROPCS, INC. 5562 GLENSFALLS NY
2018-05-10 518-904-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E SCHROON LK NY
2018-05-10 518-954-4XXX 4000–4999Assigned METROPCS, INC. 5562 AMSTERDAM NY
2018-05-09 518-806-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MALONE NY
2018-05-07 518-418-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 LAKEPLACID NY
2018-05-07 518-504-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E WARRENSBG NY
2018-05-07 518-516-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E HAMPTON NY
2018-05-07 518-586-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E TICONDROGA NY
2018-05-07 518-849-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E DANNEMORA NY
2018-05-07 518-940-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CHATEAUGAY NY
2018-05-07 518-990-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E MOIRA NY
2018-05-04 518-715-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E GALWAY NY
2018-05-04 518-978-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E JONESVILLE NY
2018-05-04 518-994-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E GREENFLCTR NY
2018-05-01 518-509-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E ROUND LAKE NY
2018-04-30 518-219-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PLATTSBG NY
2018-04-23 518-548-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 LKPLEASANT NY
2018-04-17 518-617-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E CAIRO NY
2018-04-17 518-980-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FTCOVINGTN NY
2018-04-17 518-980-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E FTCOVINGTN NY
2018-04-16 518-556-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E COLONIE NY
2018-04-09 518-760-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C GLENSFALLS NY
2018-04-06 518-690-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C COLONIE NY
2018-04-06 518-830-3XXX 3000–3999Assigned SEAMLESS GEOPORT COMM DBA MIDDLEBURGH TELEPHONE LD 506H BERNE NY
2018-04-05 518-251-8XXX 8000–8999Assigned SLIC NETWORK SOLUTIONS, INC. - NY 193C NORTHCREEK NY
2018-04-05 518-582-8XXX 8000–8999Assigned SLIC NETWORK SOLUTIONS, INC. - NY 193C NEWCOMB NY
2018-04-05 518-787-8XXX 8000–8999Assigned SEAMLESS GEOPORT COMM DBA MIDDLEBURGH TELEPHONE LD 506H RAVENA NY
2018-03-30 518-960-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TROY NY
2018-03-30 518-960-9XXX 9000–9999Assigned ONVOY, LLC- NY 384C TROY NY
2018-03-19 518-972-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NY 997E PRATTSVL NY
2018-03-06 518-886-3XXX 3000–3999Assigned ONVOY, LLC- NY 384C SARATOGSPG NY
2018-03-02 518-771-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K PINEPLAINS NY
2018-03-02 518-822-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K HUDSON NY
2018-03-02 518-939-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K COPAKE NY
2018-03-02 518-988-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K HILLSDALE NY
2018-02-22 518-302-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C LAKEPLACID NY
2018-02-22 518-517-2XXX 2000–2999Assigned ONVOY, LLC- NY 384C COBLESKILL NY
2018-02-21 518-267-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUDSON NY
2018-02-21 518-317-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MALONE NY
2018-02-21 518-901-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCHENCTADY NY
2018-02-20 518-704-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 7133 ALBANY NY
2018-02-20 518-704-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ALBANY NY
2018-02-20 518-912-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ALBANY NY
2018-02-20 518-918-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - NY 6622 ALBANY NY
2018-02-16 518-909-1XXX 1000–1999Assigned ONVOY, LLC- NY 384C GRANVILLE NY
2018-02-14 518-509-5XXX 5000–5999Assigned TC SYSTEMS, INC. - NY 7140 ROUND LAKE NY
2018-02-12 518-516-6XXX 6000–6999Assigned ONVOY, LLC- NY 384C HAMPTON 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.