NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 616
NEW CINGULAR WIRELESS PCS, LLC - IL 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 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
2006-04-28 616-734-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2006-04-27 616-244-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BELDING MI
2006-04-07 616-717-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2006-04-07 616-717-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2006-03-30 616-918-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 CEDAR SPG MI
2006-03-15 616-717-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2006-03-15 616-717-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2006-03-10 616-607-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C GRANDHAVEN MI
2006-03-10 616-848-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C HOLLAND MI
2006-03-09 616-541-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C DUTTON MI
2006-02-28 616-802-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2006-02-27 616-212-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2006-02-27 616-773-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2006-02-27 616-773-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2006-02-24 616-788-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GREENVILLE MI
2006-02-22 616-516-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2006-02-21 616-212-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2006-02-21 616-803-2XXX 2000–2999Assigned MICHIGAN BELL TEL CO 9323 DUTTON MI
2006-02-21 616-803-3XXX 3000–3999Assigned MICHIGAN BELL TEL CO 9323 DUTTON MI
2006-02-21 616-803-4XXX 4000–4999Assigned MICHIGAN BELL TEL CO 9323 DUTTON MI
2006-02-20 616-717-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J GRAND RPDS MI
2006-02-17 616-212-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2006-02-17 616-773-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2006-02-17 616-773-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2006-02-10 616-514-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2006-02-10 616-514-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2006-02-03 616-802-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2006-02-03 616-802-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2006-01-24 616-328-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2006-01-24 616-328-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2006-01-18 616-802-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2006-01-18 616-894-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GREENVILLE MI
2006-01-09 616-734-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2006-01-06 616-802-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2006-01-04 616-834-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2006-01-03 616-632-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2006-01-03 616-632-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2006-01-03 616-724-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2005-12-30 616-200-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 TRUFANT MI
2005-12-29 616-205-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J SPARTA MI
2005-12-29 616-277-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J BYRON CTR MI
2005-12-29 616-371-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J JAMESTOWN MI
2005-12-29 616-421-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J LOWELL MI
2005-12-29 616-425-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ADA MI
2005-12-29 616-622-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J ALTO MI
2005-12-29 616-755-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J IONIA MI
2005-12-29 616-765-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J FREEPORT MI
2005-12-29 616-883-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ROCKFORD MI
2005-12-13 616-734-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2005-12-12 616-931-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C ZEELAND MI

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.