NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 216
ONVOY, LLC - OH 3
HD CARRIER LLC 3
TELEPORT COMMUNICATIONS AMERICA, LLC - OH 1
INTRADO COMMUNICATIONS, LLC 1
AHOI LLC 1
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
2006-07-18 216-624-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-07-18 216-712-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-06-27 216-925-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
2006-06-27 216-925-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
2006-06-08 216-245-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C TERRACE OH
2006-06-08 216-939-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-05-31 216-539-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
2006-05-31 216-539-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
2006-05-23 216-357-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-05-23 216-357-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-05-18 216-212-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-05-18 216-212-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-05-18 216-212-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-05-18 216-212-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-05-18 216-212-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-05-18 216-212-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-05-18 216-212-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-05-18 216-502-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-05-18 216-502-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-04-28 216-624-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-04-28 216-624-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-04-28 216-624-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-04-28 216-624-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-04-28 216-624-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-04-11 216-501-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-04-11 216-501-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-04-11 216-501-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-03-28 216-502-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
2006-03-21 216-404-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-03-21 216-502-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-03-21 216-502-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-03-21 216-502-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-03-10 216-399-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-03-10 216-399-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 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
2006-02-10 216-357-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-02-01 216-466-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-01-18 216-854-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-01-13 216-333-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-01-13 216-333-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-01-13 216-333-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-01-13 216-333-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2006-01-11 216-333-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
2006-01-10 216-466-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2006-01-10 216-466-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 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

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.