NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 757
LEVEL 3 COMMUNICATIONS, LLC - VA 155
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
2019-08-22 757-260-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 CHUCKATUCK VA
2017-11-08 757-614-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2017-01-24 757-614-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2016-08-30 757-500-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2016-06-21 757-807-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2016-06-01 757-612-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2016-03-22 757-612-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2016-01-19 757-300-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2015-09-01 757-698-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2015-07-29 757-367-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NWPTNWSZN3 VA
2015-07-23 757-386-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2015-07-07 757-266-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2015-07-07 757-266-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2015-07-07 757-755-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NWPTNWSZN2 VA
2015-04-21 757-578-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2015-04-21 757-578-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2015-03-23 757-242-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WINDSOR VA
2014-09-30 757-264-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2014-09-30 757-264-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2014-09-30 757-327-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NWPTNWSZN1 VA
2014-09-24 757-269-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NWPTNWSZN3 VA
2014-09-24 757-394-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON3 VA
2014-09-24 757-690-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NWPTNWSZN2 VA
2014-08-18 757-264-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2014-04-23 757-663-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2014-04-23 757-663-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2014-04-23 757-716-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON4 VA
2014-04-23 757-913-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NWPTNWSZN1 VA
2014-04-11 757-394-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON3 VA
2014-04-08 757-690-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NWPTNWSZN2 VA
2014-03-25 757-230-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2014-03-25 757-793-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2014-02-26 757-942-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 SUFFOLK VA
2014-02-11 757-785-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2014-01-28 757-707-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WILLIAMSBG VA
2014-01-03 757-785-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2013-08-21 757-656-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 BELLEHAVEN VA
2013-07-24 757-644-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2013-07-03 757-550-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2013-04-04 757-356-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 SMITHFIELD VA
2012-06-28 757-793-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2012-06-27 757-550-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2012-02-01 757-506-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NWPTNWSZN2 VA
2012-01-04 757-632-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2011-07-13 757-644-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2011-04-12 757-694-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 TEMPERNCVL VA
2010-11-29 757-447-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2010-11-18 757-802-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2010-10-01 757-447-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2008-11-19 757-506-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NWPTNWSZN2 VA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.