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
2013-02-21 616-947-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C MARNE MI
2013-02-21 616-952-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C KENT CITY MI
2013-02-21 616-984-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C TRUFANT MI
2013-02-20 616-216-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ADA MI
2013-02-20 616-275-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C CALEDONIA MI
2013-02-20 616-366-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C BYRON CTR MI
2013-02-20 616-384-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C COOPERSVL MI
2013-02-20 616-420-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C ALTO MI
2013-02-20 616-439-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C CEDAR SPG MI
2013-02-20 616-693-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C CLARKSVL MI
2013-02-20 616-794-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C BELDING MI
2013-02-20 616-899-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C CONKLIN MI
2013-02-01 616-216-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2013-01-28 616-677-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C MARNE MI
2013-01-10 616-843-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANDHAVEN MI
2013-01-08 616-288-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2013-01-07 616-799-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CEDAR SPG MI
2013-01-07 616-879-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ZEELAND MI
2013-01-02 616-383-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C SPARTA MI
2012-12-20 616-216-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2012-12-20 616-216-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2012-12-18 616-288-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2012-12-18 616-323-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2012-12-14 616-288-0XXX 0000–0999Assigned TELNET WORLDWIDE, INC. 817J GRAND RPDS MI
2012-12-11 616-326-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ROCKFORD MI
2012-12-11 616-741-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C ZEELAND MI
2012-12-11 616-984-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C TRUFANT MI
2012-12-06 616-947-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C MARNE MI
2012-12-05 616-319-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C LOWELL MI
2012-12-03 616-374-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C LAKEODESSA MI
2012-12-03 616-378-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C JAMESTOWN MI
2012-12-03 616-952-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C KENT CITY MI
2012-11-30 616-439-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C CEDAR SPG MI
2012-11-30 616-504-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C CLARKSVL MI
2012-11-30 616-512-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C DUTTON MI
2012-11-29 616-294-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J HOLLAND MI
2012-11-29 616-420-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C ALTO MI
2012-11-29 616-920-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C ADA MI
2012-11-19 616-319-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E LOWELL MI
2012-11-19 616-520-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SPARTA MI
2012-11-14 616-288-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2012-11-14 616-383-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C SPARTA MI
2012-11-07 616-232-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C GREENVILLE MI
2012-11-07 616-439-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CEDAR SPG MI
2012-10-23 616-323-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2012-09-25 616-545-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ORLEANS MI
2012-09-25 616-757-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BORCULO MI
2012-09-20 616-259-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2012-09-20 616-419-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J GRAND RPDS MI
2012-09-20 616-426-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E 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.