NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2021-01-05 616-779-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C GRATTAN MI
2021-01-05 616-779-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C GRATTAN MI
2021-01-05 616-800-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C JAMESTOWN MI
2021-01-05 616-800-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C JAMESTOWN MI
2020-12-31 616-625-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C CONKLIN MI
2020-12-31 616-625-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C CONKLIN MI
2020-12-31 616-625-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C CONKLIN MI
2020-12-22 616-489-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C IONIA MI
2020-12-22 616-489-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C IONIA MI
2020-12-22 616-489-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C IONIA MI
2020-12-22 616-489-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C IONIA MI
2020-12-21 616-730-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J BYRON CTR MI
2020-12-21 616-877-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J MOLINE MI
2020-12-11 616-344-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2020-12-11 616-344-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2020-12-11 616-416-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2020-12-11 616-416-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2020-12-11 616-416-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C HOLLAND MI
2020-12-11 616-612-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C GRANDHAVEN MI
2020-12-11 616-612-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C GRANDHAVEN MI
2020-12-11 616-612-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C GRANDHAVEN MI
2020-12-11 616-612-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C GRANDHAVEN MI
2020-12-11 616-612-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C GRANDHAVEN MI
2020-12-07 616-210-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ZEELAND MI
2020-11-04 616-327-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2020-11-04 616-327-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2020-11-04 616-327-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2020-11-04 616-327-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2020-11-04 616-327-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2020-10-22 616-271-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C CALEDONIA MI
2020-10-22 616-271-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C CALEDONIA MI
2020-10-19 616-284-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2020-10-19 616-286-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2020-10-19 616-500-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2020-10-19 616-574-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GRAND RPDS MI
2020-10-15 616-300-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2020-10-15 616-300-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C HUDSONVL MI
2020-10-02 616-317-9XXX 9000–9999Assigned HD CARRIER LLC 321J GRAND RPDS MI
2020-09-30 616-272-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2020-09-30 616-327-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2020-09-30 616-327-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2020-09-30 616-327-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2020-09-30 616-330-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2020-09-29 616-747-9XXX 9000–9999Assigned PEERLESS NETWORK OF MICHIGAN, LLC - MI 933G ROCKFORD MI
2020-09-18 616-300-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E HUDSONVL MI
2020-09-04 616-803-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E DUTTON MI
2020-08-31 616-327-1XXX 1000–1999Assigned NUSO, LLC 478J GRAND RPDS MI
2020-08-29 616-306-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2020-08-29 616-306-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2020-08-29 616-410-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.