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 216
OHIO BELL TEL CO 43
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
2014-11-18 216-358-1XXX 1000–1999Assigned OHIO BELL TEL CO 9321 TERRACE OH
2014-11-18 216-358-2XXX 2000–2999Assigned OHIO BELL TEL CO 9321 TERRACE OH
2014-05-05 216-352-2XXX 2000–2999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2010-12-14 216-584-1XXX 1000–1999Assigned OHIO BELL TEL CO 9321 MONTRSE OH
2010-12-02 216-442-0XXX 0000–0999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2010-12-02 216-442-1XXX 1000–1999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2010-12-02 216-442-2XXX 2000–2999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2010-12-02 216-442-3XXX 3000–3999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2010-12-02 216-442-4XXX 4000–4999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2010-12-02 216-442-5XXX 5000–5999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2010-12-02 216-442-6XXX 6000–6999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2010-12-02 216-442-7XXX 7000–7999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2010-12-02 216-442-8XXX 8000–8999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2010-12-02 216-442-9XXX 9000–9999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2010-12-01 216-285-4XXX 4000–4999Assigned OHIO BELL TEL CO 9321 TERRACE OH
2010-12-01 216-285-5XXX 5000–5999Assigned OHIO BELL TEL CO 9321 TERRACE OH
2010-12-01 216-285-6XXX 6000–6999Assigned OHIO BELL TEL CO 9321 TERRACE OH
2010-12-01 216-285-7XXX 7000–7999Assigned OHIO BELL TEL CO 9321 TERRACE OH
2010-12-01 216-285-8XXX 8000–8999Assigned OHIO BELL TEL CO 9321 TERRACE OH
2009-07-22 216-732-4XXX 4000–4999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2009-07-22 216-732-6XXX 6000–6999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2006-03-02 216-466-8XXX 8000–8999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2006-03-02 216-466-9XXX 9000–9999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2005-12-30 216-448-0XXX 0000–0999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2005-12-30 216-448-1XXX 1000–1999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2005-12-30 216-448-2XXX 2000–2999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2005-12-30 216-448-3XXX 3000–3999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2005-12-30 216-448-4XXX 4000–4999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2005-12-30 216-448-5XXX 5000–5999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2005-12-30 216-448-6XXX 6000–6999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2005-12-30 216-448-7XXX 7000–7999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2005-12-30 216-448-8XXX 8000–8999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2005-12-30 216-448-9XXX 9000–9999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2004-09-09 216-286-0XXX 0000–0999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2004-09-09 216-286-1XXX 1000–1999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2004-09-09 216-286-2XXX 2000–2999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2004-09-09 216-286-3XXX 3000–3999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2004-09-09 216-286-4XXX 4000–4999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2004-09-09 216-286-5XXX 5000–5999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2004-09-09 216-286-6XXX 6000–6999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2004-09-09 216-286-7XXX 7000–7999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2004-09-09 216-286-8XXX 8000–8999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH
2004-09-09 216-286-9XXX 9000–9999Assigned OHIO BELL TEL CO 9321 CLEVELAND OH

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.