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
2005-01-28 616-205-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SPARTA MI
2005-01-26 616-828-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2005-01-19 616-545-1XXX 1000–1999Assigned TELNET WORLDWIDE, INC. 817J ORLEANS MI
2005-01-18 616-885-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J GRAND RPDS MI
2005-01-17 616-622-1XXX 1000–1999Assigned TELNET WORLDWIDE, INC. 817J ALTO MI
2005-01-12 616-734-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2005-01-12 616-734-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2005-01-11 616-931-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ZEELAND MI
2005-01-07 616-406-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2005-01-07 616-406-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2005-01-07 616-834-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLAND MI
2005-01-05 616-931-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ZEELAND MI
2004-12-30 616-510-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2004-12-29 616-499-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 HOLLAND MI
2004-12-29 616-726-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2004-12-22 616-757-1XXX 1000–1999Assigned TELNET WORLDWIDE, INC. 817J BORCULO MI
2004-12-21 616-545-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ORLEANS MI
2004-12-17 616-986-0XXX 0000–0999Assigned TELNET WORLDWIDE, INC. 817J ALLENDALE MI
2004-12-16 616-322-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2004-12-16 616-322-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2004-12-16 616-848-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2004-12-16 616-881-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2004-12-14 616-209-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUDSONVL MI
2004-12-14 616-217-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BYRON CTR MI
2004-12-14 616-322-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2004-12-14 616-359-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DORR MI
2004-12-14 616-421-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOWELL MI
2004-12-14 616-425-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2004-12-14 616-431-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARNE MI
2004-12-14 616-433-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD MI
2004-12-14 616-499-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2004-12-14 616-524-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRATTAN MI
2004-12-14 616-631-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOLINE MI
2004-12-14 616-642-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SARANAC MI
2004-12-14 616-678-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KENT CITY MI
2004-12-14 616-841-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IONIA MI
2004-12-14 616-871-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DUTTON MI
2004-12-14 616-879-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ZEELAND MI
2004-12-14 616-935-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDHAVEN MI
2004-12-13 616-322-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2004-12-13 616-322-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2004-12-13 616-510-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2004-12-09 616-828-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2004-12-09 616-881-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2004-12-09 616-881-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2004-12-03 616-788-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GREENVILLE MI
2004-12-01 616-510-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2004-12-01 616-881-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2004-11-29 616-212-2XXX 2000–2999Assigned 123.NET, LLC 2550 HOLLAND MI
2004-11-24 616-200-2XXX 2000–2999Assigned TELNET WORLDWIDE, INC. 817J TRUFANT 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.