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
2007-10-29 216-482-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-10-29 216-812-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J CLEVELAND OH
2007-10-17 216-820-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-10-17 216-820-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-10-17 216-820-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-10-17 216-835-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-10-15 216-586-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
2007-10-05 216-854-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-10-05 216-854-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-10-05 216-854-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-10-05 216-854-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-10-03 216-404-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
2007-09-28 216-772-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-09-28 216-825-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TERRACE OH
2007-09-21 216-712-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CLEVELAND OH
2007-09-12 216-367-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
2007-09-10 216-551-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-09-10 216-551-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-09-10 216-551-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-09-10 216-551-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-09-10 216-551-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-09-10 216-551-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-09-05 216-367-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLEVELAND OH
2007-08-30 216-456-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-08-30 216-456-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-08-30 216-456-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-08-20 216-510-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K MONTRSE OH
2007-08-20 216-862-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2007-08-20 216-862-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2007-08-20 216-862-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2007-08-20 216-862-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2007-08-20 216-862-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2007-08-20 216-862-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2007-08-20 216-862-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2007-08-20 216-938-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2007-08-20 216-938-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2007-08-20 216-938-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2007-08-20 216-938-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2007-08-20 216-938-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND OH
2007-08-08 216-370-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-08-08 216-370-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-08-02 216-223-4XXX 4000–4999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E TERRACE OH
2007-08-02 216-264-1XXX 1000–1999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E INDEPNDNCE OH
2007-08-02 216-365-3XXX 3000–3999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E MONTRSE OH
2007-07-18 216-848-0XXX 0000–0999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E CLEVELAND OH
2007-07-18 216-848-1XXX 1000–1999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E CLEVELAND OH
2007-07-18 216-848-2XXX 2000–2999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E CLEVELAND OH
2007-07-18 216-848-3XXX 3000–3999Assigned SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 735E CLEVELAND OH
2007-07-13 216-258-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2007-06-28 216-640-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 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.