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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-08-25 616-766-3XXX 3000–3999Assigned FRACTEL, LLC 965H BELDING MI
2020-08-25 616-766-6XXX 6000–6999Assigned FRACTEL, LLC 965H BELDING MI
2020-08-24 616-290-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2020-08-24 616-290-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2020-08-24 616-290-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2020-08-24 616-290-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2020-08-24 616-290-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2020-08-24 616-290-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2020-08-24 616-816-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2020-08-24 616-900-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2020-08-24 616-900-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2020-08-24 616-900-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2020-08-20 616-300-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUDSONVL MI
2020-08-13 616-276-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C ALTO MI
2020-08-13 616-276-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C ALTO MI
2020-08-12 616-210-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ZEELAND MI
2020-08-12 616-256-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2020-08-12 616-286-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2020-08-12 616-286-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2020-08-12 616-286-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAND RPDS MI
2020-08-10 616-310-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C COOPERSVL MI
2020-08-10 616-310-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C COOPERSVL MI
2020-08-10 616-535-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C SPARTA MI
2020-08-10 616-535-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C SPARTA MI
2020-08-05 616-900-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2020-08-05 616-900-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2020-07-28 616-850-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRANDHAVEN MI
2020-07-28 616-900-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E GRAND RPDS MI
2020-07-02 616-816-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2020-06-26 616-800-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J JAMESTOWN MI
2020-06-25 616-276-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J ALTO MI
2020-06-25 616-306-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2020-06-25 616-306-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2020-06-25 616-306-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2020-06-25 616-306-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H GRAND RPDS MI
2020-06-25 616-612-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C GRANDHAVEN MI
2020-06-25 616-612-2XXX 2000–2999Assigned ONVOY, LLCV - MI 543C GRANDHAVEN MI
2020-06-22 616-303-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C GREENVILLE MI
2020-06-22 616-303-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C GREENVILLE MI
2020-06-22 616-404-3XXX 3000–3999Assigned ONVOY, LLCV - MI 543C CASNOVIA MI
2020-06-22 616-404-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C CASNOVIA MI
2020-06-15 616-310-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 7157 COOPERSVL MI
2020-06-11 616-816-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2020-06-11 616-816-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C GRAND RPDS MI
2020-06-04 616-330-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2020-06-03 616-330-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2020-06-03 616-330-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2020-06-03 616-330-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2020-06-03 616-330-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2020-06-02 616-535-5XXX 5000–5999Assigned METROPCS, INC. 5562 SPARTA 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.