NumberResearch Membership · Data 09/26/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026

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, all time — NPA 518
TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 26
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
2021-12-02 518-540-1XXX 1000–1999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ALBANY NY
2021-11-04 518-540-8XXX 8000–8999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ALBANY NY
2017-08-01 518-816-1XXX 1000–1999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ALBANY NY
2016-05-10 518-730-3XXX 3000–3999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ALBANY NY
2014-05-06 518-679-1XXX 1000–1999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 COXSACKIE NY
2014-05-06 518-787-1XXX 1000–1999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 RAVENA NY
2013-01-23 518-213-8XXX 8000–8999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 COLONIE NY
2013-01-23 518-407-0XXX 0000–0999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ALBANY NY
2011-04-04 518-380-5XXX 5000–5999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ALBANY NY
2010-03-26 518-512-8XXX 8000–8999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ALBANY NY
2008-05-08 518-591-4XXX 4000–4999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ALBANY NY
2008-02-14 518-299-7XXX 7000–7999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 PRATTSVL NY
2007-09-26 518-697-5XXX 5000–5999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 HUDSON NY
2007-09-26 518-697-6XXX 6000–6999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 HUDSON NY
2007-05-04 518-444-8XXX 8000–8999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ATHENS NY
2007-05-04 518-966-0XXX 0000–0999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 GREENVILLE NY
2007-01-05 518-697-7XXX 7000–7999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 HUDSON NY
2006-11-06 518-512-2XXX 2000–2999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ALBANY NY
2006-02-23 518-655-7XXX 7000–7999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 VOORHEESVL NY
2005-08-12 518-242-7XXX 7000–7999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ALBANY NY
2005-05-05 518-694-7XXX 7000–7999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ALBANY NY
2004-04-28 518-275-4XXX 4000–4999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 ALBANY NY
2003-05-14 518-672-8XXX 8000–8999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 PHILMONT NY
2003-02-14 518-623-7XXX 7000–7999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 WARRENSBG NY
2002-08-07 518-336-1XXX 1000–1999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 CASTLETON NY
2002-08-07 518-895-0XXX 0000–0999Assigned TVC ALBANY, INC. DBA FIRSTLIGHT FIBER 7989 DELANSON NY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.