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
2012-03-07 616-422-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLAND MI
2012-03-07 616-426-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2012-02-17 616-259-2XXX 2000–2999Assigned METROPCS, INC. 5562 GRAND RPDS MI
2012-02-17 616-259-3XXX 3000–3999Assigned METROPCS, INC. 5562 GRAND RPDS MI
2012-02-14 616-312-0XXX 0000–0999Assigned FIRST COMMUNICATIONS, LLC 460K HOLLAND MI
2012-02-10 616-606-8XXX 8000–8999Assigned METROPCS, INC. 5562 SPARTA MI
2012-02-08 616-379-7XXX 7000–7999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L HUDSONVL MI
2012-02-03 616-312-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2012-02-03 616-414-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C GRANDHAVEN MI
2012-02-03 616-522-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C IONIA MI
2012-01-31 616-965-5XXX 5000–5999Assigned METROPCS, INC. 5562 GRAND RPDS MI
2012-01-30 616-965-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J GRAND RPDS MI
2012-01-25 616-824-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GREENVILLE MI
2012-01-11 616-690-9XXX 9000–9999Assigned METROPCS, INC. 5562 GRAND RPDS MI
2012-01-05 616-965-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2011-12-15 616-965-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2011-12-14 616-312-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLAND MI
2011-12-12 616-255-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GREENVILLE MI
2011-12-12 616-548-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GREENVILLE MI
2011-12-08 616-920-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2011-12-07 616-432-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2011-12-01 616-419-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2011-12-01 616-524-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C GRATTAN MI
2011-11-02 616-419-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2011-11-02 616-419-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2011-10-28 616-606-9XXX 9000–9999Assigned 123.NET, LLC 2550 SPARTA MI
2011-10-21 616-419-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J GRAND RPDS MI
2011-10-19 616-953-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ZEELAND MI
2011-09-26 616-419-1XXX 1000–1999Assigned TELNET WORLDWIDE, INC. 817J GRAND RPDS MI
2011-09-21 616-312-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2011-09-21 616-312-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2011-09-21 616-312-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2011-09-21 616-312-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2011-09-21 616-312-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2011-09-14 616-419-6XXX 6000–6999Assigned METROPCS, INC. 5562 GRAND RPDS MI
2011-09-14 616-419-7XXX 7000–7999Assigned METROPCS, INC. 5562 GRAND RPDS MI
2011-08-25 616-920-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2011-08-17 616-951-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J ROCKFORD MI
2011-08-11 616-420-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ALTO MI
2011-08-11 616-557-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SAND LAKE MI
2011-08-11 616-675-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C CASNOVIA MI
2011-08-11 616-765-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C FREEPORT MI
2011-08-11 616-841-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C IONIA MI
2011-08-11 616-843-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDHAVEN MI
2011-08-11 616-952-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C KENT CITY MI
2011-08-11 616-984-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C TRUFANT MI
2011-08-08 616-419-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2011-08-08 616-419-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2011-06-29 616-329-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2011-06-29 616-329-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS 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.