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 919
LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 65
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
2015-01-07 919-947-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 GOLDSBORO NC
2014-10-30 919-694-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 CARY NC
2014-08-18 919-516-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2014-05-14 919-908-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2014-03-19 919-703-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2014-01-13 919-372-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 APEX NC
2013-08-15 919-703-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2013-04-12 919-590-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 CHAPELHILL NC
2011-03-16 919-213-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2010-02-11 919-407-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2010-02-11 919-407-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2010-02-11 919-407-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2010-02-11 919-407-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2009-04-16 919-972-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2009-04-16 919-972-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2009-04-16 919-972-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2009-04-16 919-972-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2007-10-12 919-237-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2007-10-12 919-237-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2007-10-12 919-237-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2007-10-12 919-415-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 CARY NC
2007-10-12 919-415-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 CARY NC
2007-10-12 919-415-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 CARY NC
2007-10-12 919-800-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2007-10-12 919-800-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2007-10-12 919-800-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2007-10-12 919-800-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2007-10-12 919-800-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2007-10-12 919-957-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2007-10-12 919-957-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2007-09-26 919-744-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2007-09-26 919-744-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2007-09-26 919-745-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2007-09-26 919-745-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2007-05-14 919-747-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2007-05-14 919-747-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2006-08-14 919-328-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2006-08-14 919-328-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2006-08-14 919-328-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2006-08-14 919-328-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2006-06-23 919-237-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 DURHAM NC
2005-09-22 919-447-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 CARY NC
2005-09-22 919-447-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 CARY NC
2005-09-22 919-447-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 CARY NC
2005-09-22 919-447-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 CARY NC
2005-09-22 919-926-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2005-09-22 919-926-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2005-09-22 919-926-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2005-09-22 919-926-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC
2005-09-22 919-926-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC 7555 RALEIGH NC

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.