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
2014-06-27 616-378-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E JAMESTOWN MI
2014-06-24 616-577-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C SARANAC MI
2014-06-17 616-208-0XXX 0000–0999Assigned DAYSTARR LLC DBA DAYSTARR COMMUNICATIONS 993L BELDING MI
2014-06-17 616-545-5XXX 5000–5999Assigned DAYSTARR LLC DBA DAYSTARR COMMUNICATIONS 993L ORLEANS MI
2014-06-17 616-557-4XXX 4000–4999Assigned DAYSTARR LLC DBA DAYSTARR COMMUNICATIONS 993L SAND LAKE MI
2014-06-13 616-202-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2014-06-06 616-577-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J SARANAC MI
2014-05-21 616-226-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2014-05-19 616-288-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2014-05-19 616-288-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2014-05-19 616-288-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2014-05-14 616-229-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HUDSONVL MI
2014-05-13 616-253-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MOLINE MI
2014-05-07 616-275-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CALEDONIA MI
2014-04-15 616-219-6XXX 6000–6999Assigned MICHIGAN BELL TEL CO 9323 DUTTON MI
2014-04-15 616-219-7XXX 7000–7999Assigned MICHIGAN BELL TEL CO 9323 DUTTON MI
2014-04-15 616-227-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2014-04-15 616-227-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2014-04-14 616-523-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 IONIA MI
2014-04-07 616-288-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C GRAND RPDS MI
2014-04-04 616-368-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HOLLAND MI
2014-04-02 616-228-0XXX 0000–0999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G GRAND RPDS MI
2014-04-02 616-228-1XXX 1000–1999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G GRAND RPDS MI
2014-04-02 616-228-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G GRAND RPDS MI
2014-04-02 616-323-1XXX 1000–1999Assigned TELNET WORLDWIDE, INC. 817J GRAND RPDS MI
2014-03-04 616-323-8XXX 8000–8999Assigned METROPCS, INC. 5562 GRAND RPDS MI
2014-03-03 616-226-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2014-02-26 616-202-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2014-02-26 616-227-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ADA MI
2014-02-26 616-522-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E IONIA MI
2014-02-13 616-227-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2014-02-07 616-469-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2014-02-07 616-469-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2014-01-28 616-984-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E TRUFANT MI
2014-01-15 616-294-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HOLLAND MI
2014-01-09 616-323-6XXX 6000–6999Assigned METROPCS, INC. 5562 GRAND RPDS MI
2014-01-09 616-323-7XXX 7000–7999Assigned METROPCS, INC. 5562 GRAND RPDS MI
2013-12-30 616-439-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 CEDAR SPG MI
2013-12-06 616-368-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLAND MI
2013-11-22 616-379-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HUDSONVL MI
2013-11-20 616-202-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2013-11-08 616-253-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J MOLINE MI
2013-11-08 616-469-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2013-11-08 616-469-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2013-11-08 616-469-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI
2013-11-06 616-552-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2013-11-06 616-552-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2013-11-01 616-368-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 HOLLAND MI
2013-10-28 616-345-7XXX 7000–7999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L BYRON CTR MI
2013-10-28 616-379-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HUDSONVL 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.