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
2012-09-20 616-439-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CEDAR SPG MI
2012-09-20 616-449-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C FREEPORT MI
2012-09-05 616-841-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 IONIA MI
2012-08-24 616-259-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2012-07-26 616-244-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E BELDING MI
2012-07-26 616-947-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E MARNE MI
2012-07-19 616-288-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2012-07-18 616-577-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SARANAC MI
2012-07-13 616-326-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ROCKFORD MI
2012-07-13 616-741-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ZEELAND MI
2012-07-13 616-834-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLAND MI
2012-06-19 616-426-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2012-06-18 616-259-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2012-06-18 616-920-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ADA MI
2012-06-14 616-843-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDHAVEN MI
2012-06-07 616-420-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ALTO MI
2012-06-07 616-537-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LAKEODESSA MI
2012-05-18 616-275-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CALEDONIA MI
2012-05-17 616-259-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2012-05-14 616-414-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANDHAVEN MI
2012-05-14 616-439-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CEDAR SPG MI
2012-05-09 616-449-6XXX 6000–6999Assigned WOW! INTERNET, CABLE AND PHONE 961J FREEPORT MI
2012-05-09 616-583-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BYRON CTR MI
2012-05-04 616-504-3XXX 3000–3999Assigned WOW! INTERNET, CABLE AND PHONE 961J CLARKSVL MI
2012-05-02 616-319-6XXX 6000–6999Assigned WOW! INTERNET, CABLE AND PHONE 961J LOWELL MI
2012-05-02 616-537-4XXX 4000–4999Assigned WOW! INTERNET, CABLE AND PHONE 961J LAKEODESSA MI
2012-05-02 616-577-5XXX 5000–5999Assigned WOW! INTERNET, CABLE AND PHONE 961J SARANAC MI
2012-04-27 616-205-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C SPARTA MI
2012-04-27 616-319-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C LOWELL MI
2012-04-27 616-326-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ROCKFORD MI
2012-04-27 616-371-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C JAMESTOWN MI
2012-04-27 616-379-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2012-04-27 616-420-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ALTO MI
2012-04-27 616-439-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C CEDAR SPG MI
2012-04-27 616-504-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C CLARKSVL MI
2012-04-27 616-512-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C DUTTON MI
2012-04-27 616-528-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C CALEDONIA MI
2012-04-27 616-537-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C LAKEODESSA MI
2012-04-27 616-583-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C BYRON CTR MI
2012-04-27 616-681-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C DORR MI
2012-04-27 616-691-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C GRATTAN MI
2012-04-27 616-877-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C MOLINE MI
2012-04-27 616-920-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ADA MI
2012-04-27 616-947-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C MARNE MI
2012-04-27 616-952-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C KENT CITY MI
2012-04-27 616-953-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ZEELAND MI
2012-04-27 616-984-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C TRUFANT MI
2012-04-25 616-259-1XXX 1000–1999Assigned TELNET WORLDWIDE, INC. 817J GRAND RPDS MI
2012-04-23 616-255-8XXX 8000–8999Assigned DAYSTARR LLC DBA DAYSTARR COMMUNICATIONS 993L GREENVILLE MI
2012-03-19 616-843-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDHAVEN 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.