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
2011-07-27 216-816-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDEPNDNCE OH
2011-07-20 216-342-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 TERRACE OH
2011-07-20 216-503-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 INDEPNDNCE OH
2011-07-12 216-342-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K TERRACE OH
2011-07-05 216-334-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-05 216-334-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-05 216-894-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-05 216-894-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-01 216-882-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-01 216-882-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-01 216-882-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-01 216-882-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-01 216-882-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-01 216-882-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-01 216-882-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-01 216-882-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-01 216-882-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-07-01 216-882-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-400-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-400-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-400-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-400-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-471-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-471-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-471-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-479-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-501-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-501-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-501-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-738-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-738-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-767-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-767-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-889-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-889-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-931-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-24 216-939-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-06-10 216-471-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C CLEVELAND OH
2011-05-26 216-285-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J TERRACE OH
2011-05-26 216-285-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J TERRACE OH
2011-05-24 216-400-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CLEVELAND OH
2011-05-13 216-400-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2011-05-13 216-400-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2011-05-12 216-220-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MONTRSE OH
2011-05-12 216-855-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-05-12 216-855-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-05-12 216-855-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2011-04-22 216-264-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F INDEPNDNCE OH
2011-04-22 216-285-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F TERRACE OH
2011-04-22 216-285-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F TERRACE 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.