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
2005-12-09 616-724-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2005-12-09 616-724-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2005-12-06 616-209-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 HUDSONVL MI
2005-12-06 616-359-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 DORR MI
2005-12-06 616-522-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 IONIA MI
2005-12-01 616-217-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BYRON CTR MI
2005-12-01 616-371-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 JAMESTOWN MI
2005-12-01 616-431-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MARNE MI
2005-12-01 616-524-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRATTAN MI
2005-12-01 616-541-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 DUTTON MI
2005-12-01 616-548-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GREENVILLE MI
2005-12-01 616-622-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ALTO MI
2005-12-01 616-675-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 CASNOVIA MI
2005-12-01 616-678-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 KENT CITY MI
2005-11-29 616-425-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ADA MI
2005-11-21 616-801-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOLLAND MI
2005-11-17 616-421-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 LOWELL MI
2005-11-17 616-808-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2005-11-17 616-808-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2005-10-20 616-477-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2005-10-14 616-477-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2005-10-05 616-389-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2005-10-04 616-734-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2005-09-16 616-477-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2005-09-06 616-212-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 HOLLAND MI
2005-09-06 616-389-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2005-09-01 616-477-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2005-09-01 616-477-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2005-09-01 616-477-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2005-08-29 616-223-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J GRANDHAVEN MI
2005-08-29 616-808-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2005-08-29 616-808-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2005-08-24 616-594-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J HOLLAND MI
2005-08-24 616-777-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J HUDSONVL MI
2005-08-24 616-971-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J DUTTON MI
2005-08-15 616-389-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2005-08-15 616-537-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 LAKEODESSA MI
2005-08-11 616-504-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 CLARKSVL MI
2005-08-09 616-499-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 HOLLAND MI
2005-08-09 616-499-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 HOLLAND MI
2005-08-09 616-499-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 HOLLAND MI
2005-08-09 616-499-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 HOLLAND MI
2005-08-05 616-200-3XXX 3000–3999Assigned 123.NET, LLC 2550 TRUFANT MI
2005-08-05 616-347-3XXX 3000–3999Assigned 123.NET, LLC 2550 SAND LAKE MI
2005-08-05 616-788-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENVILLE MI
2005-08-05 616-788-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GREENVILLE MI
2005-08-03 616-597-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7157 IONIA MI
2005-08-03 616-712-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7157 GREENVILLE MI
2005-08-03 616-935-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7157 GRANDHAVEN MI
2005-08-02 616-433-9XXX 9000–9999Assigned CYNERGYCOMM.NET, INC. - MI 9245 ROCKFORD 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.