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
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
2005-11-29 216-816-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDEPNDNCE OH
2005-11-16 216-220-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MONTRSE OH
2005-11-16 216-325-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-11-01 216-510-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C MONTRSE OH
2005-10-10 216-333-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-20 216-236-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J INDEPNDNCE OH
2005-09-12 216-201-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-12 216-799-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-12 216-799-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-12 216-799-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-12 216-799-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-12 216-799-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-09-01 216-298-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-08-26 216-244-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-08-26 216-256-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-08-25 216-712-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J CLEVELAND OH
2005-08-24 216-799-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-08-24 216-799-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-08-24 216-799-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-08-12 216-755-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 TERRACE OH
2005-08-11 216-394-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-08-11 216-394-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-07-27 216-224-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2005-07-27 216-297-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-07-27 216-297-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-07-27 216-334-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2005-07-27 216-334-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2005-07-27 216-334-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2005-07-27 216-334-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2005-07-27 216-334-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND OH
2005-07-27 216-632-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MONTRSE OH
2005-07-27 216-773-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TERRACE OH
2005-07-25 216-773-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TERRACE OH
2005-07-21 216-773-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TERRACE OH
2005-07-07 216-466-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-06-20 216-632-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MONTRSE OH
2005-06-16 216-245-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 TERRACE OH
2005-06-10 216-258-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-06-08 216-404-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-06-08 216-404-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-05-19 216-244-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-05-05 216-258-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-04-22 216-268-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEVELAND OH
2005-04-22 216-773-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 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.